The waste-to-energy process generates
energy in the form of electricity, heat, or fuel
from the incineration of waste. Converting
non-recyclable waste materials into electricity,
heat, or fuel generates a renewable energy
source. The 86 waste-to-energy facilities
in the United States have the capacity to
produce 2,720 megawatts of power per
year by processing more than 28 million
tons of waste per year. Write an inequality
to show the possible power, p, that the
waste-to-energy facilities in the United States
are capable of producing.

Answers

Answer 1

The requied inequality is 0 ≤ p 2720 shows the possible power, p, that the waste-to-energy facilities in the United States are capable of producing.

What is inequality?

Inequality is defined as mathematical statements that have a minimum of two terms containing variables or numbers that are not equal.

We can write the inequality as follows:

0 ≤ p 2720

This inequality states that the power p that the waste-to-energy facilities in the United States are capable of producing is greater than or equal to 0 megawatts, and less than or equal to 2720 megawatts.

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Related Questions

Tammy gave 8 people candy. She split 3/4 pounds among them.

Answers

The amount of candy that each person got, given the number of people that Tammy shared the candy with, and the amount of candy, is 3 / 32 pounds

How to find the amount of candy ?

To find the amount of candy that each person got, you need to divide the amount of candy that Tammy had , by the total number of people that she shared the candy with.

The amount of candy that each person got was therefore :

= Amount of candy / Number of people

= 3 / 4 ÷ 8

= 0. 75 / 8

= 0. 09375 pounds

= 3 / 32 pounds

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The transaction history at an electronic goods store indicates that 21 percent of customers purchase the extended warranty when they buy an eligible item. Suppose customers who buy eligible

Answers

It is found that there is a 0.493 = 49.3% probability that it takes more than 3 customers who buy an eligible item to find one who purchased the extended warranty.

Formula for Binomial probability distribution:

[tex]P(X=x)=C_{n}_,_x_.p^x.(1-p)^{n-x}[/tex]

The parameters are:

x is the number of successes.

n is the number of trials.

p is the probability of a success on a single trial.

It is given that 21% of customers purchase extended warranty, hence p=0.21.

The probability that it takes more than 3 customers who buy an eligible item to find one who purchased the extended warranty is the probability that none of the first three buy, which is P(X = 0) when n = 3, hence:

[tex]P(X=x)=C_{n}_,_x_.p^x.(1-p)^{n-x}\\P(X=x)=C_{3}_,_0_.(0.21)^0.(0.79)^{3}\\=0.49[/tex]

0.493 = 49.3% probability that it takes more than 3 customers who buy an eligible item to find one who purchased the extended warranty.

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12. There are 28 students whose last names begin with the letters G, H, J, or K. Information about
the probability of randomly selecting one of these students is listed below.

• probability of selecting a student whose last name begins with G: 1/7

•probability of selecting a student whose last name begins with G or H: 5/14

How many of these students have a last name that begins with H?
A. 4
B. 5
C. 6
D. 7

Answers

Answer:

6 (c)


Hope this helps

When Logan had one cat, he needed to serve 1/8 of a can of cat food each day. Now that Logan has adopted a second cat, he needs to serve a total of 3/8 of a can each day. How much extra food is needed to feed the second cat?

Answers

Using subtraction as an arithmetic operator, the quantity to feed the second cat is 1/4 can

What is Subtraction

Subtraction is an arithmetic operation in which the difference between two numbers is found. It is symbolized by a minus sign (-) and is the inverse of addition.

To determine the extra food needed to feed the second cat, we need to subtract the quantity required to feed the first cat from the combined quantity to feed both cats now.

3/8 - 1/8 = (3 - 1) / 8 = 2/8 = 1/4

The quantity to feed the second cat is 1/4 can

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Which set of ordered pairs represents an exponential function?
A. (-1,-1/2), (0, 0),(1,1/2), (2, 1)

B. (–1, –1), (0, 0), (1, 1), (2, 8)

C. (-1,1/2), (0, 1), (1, 2), (2, 4)

D. (–1, 1), (0, 0), (1, 1), (2, 4)

Answers

Therefore , the solution of the given problem of ordered pair comes out to be The exponential equation y = 2ˣ could produce the set C.

What are ordered pairs in particular?

"Ordered pairs" are two variables that are presented together in a way that suggests a specific order. The first and second elements, accordingly, in an order pair, represent the x- and y-coordinates. As seen in the sample below, close parentheses are utilized to represent the ordered pair.

Here,

Given :

Since a⁰  = 1, the point (0,1) appears on the graph of any exponential function with the formula y =  aˣ.

Therefore, C is the only option available.

Examine it:

1/2 = a⁻¹, a = 2,

2 = a¹, a = 2,

4 =a²,= a = 2.

The exponential equation y = 2ˣ could produce the set C.

Therefore , the solution of the given problem of ordered pairs comes out to be The exponential equation y = 2ˣ could produce the set C.

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Let f and g be the functions given by #f(x)=1+sin(2x)# and #g(x)=e^(x/2)#. Let R be the region in the first quadrant enclosed by the graphs of f and g. How do you find the area?

Answers

The area is given by 0.4291 units.

The points of intersection are given by,

y = 1+sin2x=e^(x/2). The y-intercept ( x = 0 ) for both are the same 1.

So, one common point is (0, 1). Glory to Socratic utility, the other is

approximated graphically to 4-sd as 1.136.

Now, the area is

∫(f−g)dx,   for x from 0 to 1.136

∫((1 + sin(2x)) − (eˣ/₂)dx, for x from 0 to 1.136

=[(x − 1/2cos(2x)) − (2eˣ/₂)], between 0 and 1.136

=(1.136 − 1/2cos(2.272) − 2e^1.16/2) (−5/2)

=0.4291 units.

The limit of a function in mathematics is a key idea in calculus and analysis regarding the behavior of that function close to a specific input.

Informally, a function f gives each input x an output f(x). If f(x) approaches L as x approaches input p, we say that the function has a limit L at that location. More specifically, any input that is sufficiently close to p when f is applied forces the output value arbitrarily close to L.

The term "limit" is also used in the definition of the mathematical term "derivative," which in one-variable calculus refers to the maximum value of the slope of secant lines on a function's graph.

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Please help me with this ASAP!!
Find the probability that a randomly selected point within the circle falls in the white area.

Round to the nearest tenth of a percent.

r=4cm

Answers

Probability that a randomly selected point falls in the white area is; 84.1%

How to find the probability?

The formula for area of a circle is;

A = πr²

where r is radius.

Thus;

A_circle = π * 4² = 50.265 cm²

Now, formula for area of triangle is;

A_tria = ¹/₂ * base * height

A_tria = ¹/₂ * 4 * 4 = 8 cm²

Thus;

Area of white portion = 50.265 cm² - 8 cm²

Area of white portion = 42.265  cm²

Thus;

Probability that a randomly selected point falls in the white area is;

P(White area) = 42.265/50.265 = 0.8408

= 84.1%

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Divides trapezoid abcd into two similar triangles, △abc and △acd. find the perimeter of this trapezoid if leg ab = 9 cm and leg cd = 12 cm.

Answers

If leg ab = 9 cm and leg cd = 12 cm then the perimeter of this trapezoid will be 46cm.

Angle bisector in geometry refers to a line that splits an angle into two equal angles. Bisector means the thing that bisects a shape or an object into two equal parts.  If we draw a ray that bisects an angle into two equal parts of the same measure, then it is called an angle bisector.

Step-by-step explanation:

It is given that the angle bisector AC divides the trapezoid ABCD into two similar triangles Δ ABC and Δ ACD.

Let us first find the corresponding sides of triangles Δ ABC and Δ ACD.

Since AC is the angle bisector of ∠A,

∠DAC = ∠CAB --- (1)

Also, since ∠DAC and ∠ACB are alternate interior angles,

∠DAC = ∠ACB --- (2)

From (1) and (2),

∠CAB = ∠ACB

Therefore, in Δ ABC,

BC = AB (sides opposite to equal angles are equal)

So, BC = 9 cm.

Now, since ∠DAC = ∠ACB and ∠DAC = ∠CAB, we can take either ∠ACB or ∠CAB as the angle corresponding to ∠DAC. Let us take ∠ACB as the corresponding angle of ∠DAC.

So, the side opposite to ∠DAC in Δ ACD is the corresponding side to the side opposite to ∠ACB in Δ ABC.

That is, the side CD in Δ ACD is the corresponding side to the side AB in Δ ABC.

Now, suppose if the side BC in Δ ABC corresponds to side AD of Δ ACD, then the remaining side AC of Δ ABC should correspond to side AC of Δ ACD which is not possible since they are congruent.

So, the side BC in Δ ABC should correspond to side AC of Δ ACD and the remaining side AC of Δ ABC should correspond to side AD of Δ ACD.

Therefore, we have,

[tex]\frac{AB}{CD} =\frac{BC}{AC} =\frac{AC}{AD}[/tex]

But, [tex]\frac{AB}{CD} =\frac{9}{12} =\frac{3}{4}[/tex]

Therefore,[tex]\frac{BC}{AC} =\frac{3}{4}[/tex]

[tex]\frac{9}{AC} =\frac{3}{4}[/tex]

[tex]AC=(\frac{4}{3} )(9)[/tex]

AC = 12 cm

Also,

[tex]\frac{AC}{AD} =\frac{3}{4}[/tex]

[tex]\frac{12}{AD} =\frac{3}{4}\\AD=(\frac{4}{3} )(12)[/tex]

AD = 16 cm

Now, the perimeter of the trapezoid = AB + BC + CD + AD

= 9 + 9 + 12 + 16

= 46 cm

Therefore, the perimeter of this trapezoid will be 46cm.

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The perimeter of this trapezoid will be 46cm.

Now, According to the question:

Angle bisector in geometry refers to a line that splits an angle into two equal angles. Bisector means the thing that bisects a shape or an object into two equal parts.  If we draw a ray that bisects an angle into two equal parts of the same measure, then it is called an angle bisector.

An angle bisector AC divides a trapezoid ABCD into two similar triangles △ABC and △ACD.

The leg AB=9 cm and the leg CD=12 cm.

Given that AC is the angle bisector of angle A, therefore:

∠DAC = ∠CAB     ----- (1)

∠DAC = ∠ ACB      (alternate interior angles)       ---- (2)

From (1) and (2):

Sides opposite to equal angles are equal, therefore:

BC = AB

Hence, BC = 9 cm

Side BC in triangle ABC should correspond to side AC of triangle ACD and the remaining side AC of triangle ABC should correspond to side AD of triangle ACD.

Therefore, we have

[tex]\frac{AB}{CD} = \frac{BC}{AC} =\frac{AC}{AD}[/tex]

[tex]\frac{AB}{CD}[/tex] = [tex]\frac{9}{12}=\frac{3}{4}[/tex]

Therefore, [tex]\frac{BC}{AC}=\frac{3}{4}[/tex]

[tex]\frac{9}{AC}=\frac{3}{4}[/tex]

AC = 4/3 × 9

AC = 12cm

also, [tex]\frac{AC}{AD} =\frac{3}{4}[/tex]

12/AD = 3/4

AD = 4/3 ×12

AD = 16cm

Now, the perimeter of the trapezoid = AB + BC + CD + AD

= 9 + 9 + 12 + 16

= 46 cm

Therefore, the perimeter of this trapezoid will be 46cm.

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The complete question is this:

An angle bisector AC divides a trapezoid ABCD into two similar triangles △ABC and △ACD. Find the perimeter of this trapezoid if the leg AB=9 cm and the leg CD=12 cm.

y=4x−9y, equals, 4, x, minus, 9 Complete the missing value in the solution to the equation.

Answers

The function is

y = 4x - 9

The slope of the function is 4 and the y- intercept is -9.

For x= 3,  y = 3

What is Functions ?

Each element of X receives precisely one element of Y when a function from one set to the other is used. The sets X and Y are collectively referred to as the function's domain and codomain, respectively. Initially, functions represented the idealized relationship between two changing quantities.

A function is a procedure or a relation that links each element of a non-empty set A, at least one element of another non-empty set B, to another element of the first non-empty set A. In mathematics, a relation f between two sets, A and B, is referred to as the function's domain and co-domain.

A relation between a collection of inputs and outputs is known as a function. A function is, to put it simply, a connection between inputs in which each input is connected to precisely one output. Each function has a range, codomain, and domain. The usual way to refer to a function is as f(x), where x is the input.

The function is

y = 4x - 9

here the slope of the function is 4 and the y- intercept is -9

So, the line intersect the y-axis in (0,-9) and x axis at (0,9/4)

The missing value when x = 3

y = 4*3 - 9 = 3

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what is -20/6 in fractions

Answers

Answer:

[tex]-\frac{10}{3}[/tex]

Answer:

-3 1/3

Step-by-step explanation:

HELP
Write an equation of the line passing through point P that is parallel to the given line.
P(0,4);y=2x

Answers

Answer:

  y = 2x +4

Step-by-step explanation:

You want an equation of the line through point P(0, 4) parallel to y = 2x.

Parallel line

The parallel line will have the same slope, so can be written in the form ...

  y = 2x +b

where 'b' is the y-intercept.

Intercept

The point (0, 4) is the y-intercept, telling you b=4.

An equation for the line is y = 2x +4.

__

Additional comment

"An equation" covers a lot of territory. The equation we found can be written several other ways, including ...

y - 2x - 4 = 02x -y = -4 . . . . . . . . standard form2x -y +4 = 0 . . . . . . general formx/(-2) +y/(4) = 1 . . . . intercept formy -4 = 2x . . . . . . . . . point-slope form

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which equation describes how the parent function y=x^3is vertically stretched by a factor of 4? y=x^3+4. y=(x+4)^3 y=4x^3. y=x^4

Answers

The equation representing vertical stretching of y = x³ by a factor of 4, will be y = 4x³.

What is a linear equation?

It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.

If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.

The function y = x³, and we need to b it vertically by a factor of 4. So, this can be simply done by multiplying the function (x³) by 4.

Therefore, the b representing vertical stretching of y = x³ by a factor of 4, will be y = 4x³.

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The equation y = x³ with a vertical stretched by a factor of 4 is y = x³ + 4.

Option A is the correct answer.

What is translation?

It is the movement of the shape in the left, right, up, and down directions.

The translated shape will have the same shape and shape.

There is a positive value when translated to the right and up.

There is a negative value when translated to the left and down.

We have,

y = x³

Vertically stretched by a factor of 4 means,

y = x³ + 4

Thus,

y = x³ + 4 is the equation.

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Rationalize the denominator and simplify. √(a+1)-2 / √(a+1)+2​

Answers

Answer:

[tex]\dfrac{a-4\sqrt{a+1}+5}{a-3}[/tex]

Step-by-step explanation:

Given rational expression:

[tex]\dfrac{\sqrt{a+1}-2}{\sqrt{a+1}+2}[/tex]

To rationalize the denominator, multiply the numerator and denominator by the conjugate of the denominator.

The conjugate of a binomial is where we change the sign between the two terms of the binomial.  So the conjugate of √(a+1)+2​ is √(a+1)-2​.

Therefore:

[tex]\implies \dfrac{\sqrt{a+1}-2}{\sqrt{a+1}+2} \cdot \dfrac{\sqrt{a+1}-2}{\sqrt{a+1}-2}[/tex]

[tex]\implies \dfrac{(\sqrt{a+1}-2)(\sqrt{a+1}-2)}{(\sqrt{a+1}+2)(\sqrt{a+1}-2)}[/tex]

[tex]\implies \dfrac{(a+1)-4\sqrt{a+1}+4}{(a+1)-4}[/tex]

[tex]\implies \dfrac{a-4\sqrt{a+1}+5}{a-3}[/tex]

Let x be the number of questions worth 5 points and let y be the number of questions worth 2 points.

Answers

The total number of questions is 10 + 15 = 25.

Let x be the number of questions worth 5 points and let y be the number of questions worth 2 points. The total number of points can be calculated by the following formula: x*5 + y*2.

For example, if there are 10 questions worth 5 points and 15 questions worth 2 points, the total number of points is calculated by 10*5 + 15*2 = 100.

In order to calculate the average points per question, we divide the total number of points by the total number of questions. This can be formulated as (x*5 + y*2) / (x + y).

For the example above, the average points per question can be calculated as (10*5 + 15*2) / (10 + 15) = 100 / 25 = 4. This means that the average points per question is 4 points.

Finally, if we want to calculate the total number of questions, we can use the formula x + y. Continuing with the example, the total number of questions is 10 + 15 = 25.

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14 questions worth 5 points and 15 questions worth 2 points

In this question we have been given that Mr. Martin’s math test worth 100 points, has 29 questions and each problem is worth either 5 points or 2 points.

We have been given a system of equations:

x + y = 29                                ................(1)

5x + 2y = 100                          ................(2)

Assuming x be the number of questions worth 5 points and let y be the number of questions worth 2 points, we need to find the number of questions of each point value.

i.e., we need to find the value of x and y

From equation (1),

x = 29 - y                      ..............(3)

Subatitute above value of x in equation (2)

5(29 - y) + 2y = 100  

145 - 5y + 2y = 100

-3y = 100 - 145

-3y = -45

y = 15

Subatitute above value of y in equation (3)

x = 29 - 15

x = 14

Therefore, there are 14 and 15 questions worth 5 and  2, respectively.

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Anna is in charge of the alumni fundraiser for her alma mater. She is selling pre-sale tickets for $10 and at-the-door tickets for $15. The venue has the capacity to hold 300 people. The graph represents the number of tickets Anna needs to sell to offset her upfront costs and raise $3,500 for her school: Graph with x axis labeled pre sale tickets and y axis labeled at the door tickets. There are two lines intersecting at two hundred comma one hundred. How many pre-sale tickets must she sell to make her goal? 350 300 200 100

Answers

The number of pre-sale tickets must she sell to make her goal is (c) 200

How to determine the number of pre-sale tickets must she sell to make her goal?

From the question, we have the following parameters that can be used in our computation:

Pre-sale tickets = $10 At-the-door tickets = $15. Capacity = 300 peopleAmount raised = $3,500

These parameters can be represented using the following system of equations

10x + 15y = 3500

x + y = 300

The graph that completes the question is added as an attachment


From the graph, we have

(x, y) = (200, 100)

The variable y represents the number of pre-sale ticket

So, we have

x = 200

Hence, the number of pre-sale ticket is (c) 200

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Answer:

C, 200

Step-by-step explanation:

An easier way to get the answer in this case would be to see where the 2 lines meet, which is at 200 pre-sale tickets :))

Solve for x. Write the equation and show ALL STEPS to solve.

Answers

Using the vertical angles theorem, the equation created is: 3x - 3 = 2x + 13

The value of x = 16.

How to Solve an Equation?

To solve the problem given, use the vertical angles theorem to create an equation then find the value of x.

(3x - 3)° and (2x + 13)° are vertical angles, therefore, based on the vertical angles theorem, the equation created is:

3x - 3 = 2x + 13

Combine like terms:

3x - 2x = 3 + 13

x = 16

The value of x is: 16.

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1. What is the standard deviation, a, in the heights of tenth grade girls shown in the table below? 01.2076 O≈ 1.4076 O~1.5076 O~1:3076 Heights of Girls (Inches) 64.25 65.50 63.75 64.25 66.50 62.75​

Answers

Answer:

First option:
1.2076

Step-by-step explanation:

Just use the standard deviation functionality of any scientific/statistical calculator.

The answer is 1.2076 which is the first option

Your school is donating items to the local food pantry. Your homeroom is having a competition to see who will donate the most items. You have already donated 14 items and plan to donate 3 more each week. Your friend has already collected 8 items and plans to collect 5 more items each week. Write and solve a system of equations for the number of weeks (x) when you both donate the same number of items (y).

Answers

The system of equations for the number of weeks (x) when you both donate the same number of items (y) is 14 + 3x; 8 + 5x.

How to write and solve equation?

Let

number of weeks = x

number of items = y

Your equation:

y = 14 + 3x

Your friend:

y = 8 + 5x

Equate y

14 + 3x = 8 + 5x

14 - 8 = 5x - 3x

6 = 2x

divide both sides by 2

x = 6/2

x = 3 weeks

Therefore, it will take 3 weeks for you both to donate the same number of items.

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What is the value of a?

Answers

Answer:

Step-by-step explanation:

D. sh 864000 C. sh 216000 24. Eighteen pupils were given a playground to clear in 1 h 40 min. If six of the pupils did not turn up, how much longer did it take the rest of the pupils to clear the playground? A. 33%, min C. 2 h 30min B. 50min D. 3 h 20min​

Answers

Answer:

C) 2hours and 3 minutes

Step-by-step explanation:

rate x number of people x time =  1 job

Rate:

[tex]\frac{1}{18(100)}[/tex]   To get 1 job done, it takes 18 people and 100 minutes  (1 hours + 40 minutes is 60 + 40 or 100 minutes

[tex]\frac{1}{18(100)}[/tex] x 12 x time = 1

[tex]\frac{12}{1800}[/tex] t = 1   Multiply both sides by [tex]\frac{1800}{12}[/tex]

t = [tex]\frac{1800}{12}[/tex] = 150

The time is 150 minutes, which is the same as 2 hours and 30 minutes.

Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the
correct position in the answer box. Release your mouse button when the item is place. If you change your mind, drag
the item to the trashcan. Click the trashcan to clear all your answers.
Find the product and express your answer in scientific notation.
(5 x 10^6)(8.2 x 10^-9)

Answers

The product of  [tex]$ (5 \times 10^6)(8.2 \times10^{-9})[/tex] is  [tex]$ 4.1 \times 10^{-2}[/tex]  in scientific notation.

What is scientific notation?

Numbers that are either too large or too small to be conveniently written in decimal form can be expressed using scientific notation. It is also known as "scientific form" in Britain, and it is frequently used by scientists, mathematicians, and engineers for difficult calculations involving large numbers. It is commonly referred to as "SCI" display mode on scientific calculators.

Scientific notation is a way to express numbers in terms of a decimal number between 1 and 10, but not 10 itself multiplied by a power of 10.

The standard for scientific notation is N × 10ᵃ

Given to find product of

⇒ [tex]$ (5 \times 10^6)(8.2 \times10^{-9})[/tex]

⇒ [tex]$ (5 \times 8.2 )10^{6 +(-9)}[/tex]

⇒ [tex]$ (5 \times 8.2 )10^{-3}[/tex]

⇒ [tex]$ (41 )10^{-3}[/tex]

⇒ [tex]$ 4.1 \times 10^{-2}[/tex]

Thus, The product of  [tex]$ (5 \times 10^6)(8.2 \times10^{-9})[/tex] is  [tex]$ 4.1 \times 10^{-2}[/tex]  in scientific notation.

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five hundred values are normally distributed with a mean of 125 and a standard deviation of 10 approximately how many values are within 2 standard deviations of the mean

Answers

68.27% of values are within 2 standard deviations of the mean.

What is normal distribution?

Normal distribution, also known as the Gaussian distribution, is a probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean.

Given that, five hundred values are normally distributed with a mean of 125 and a standard deviation of 10 approximately.

Here, X=125 and σ=10

The percent of the values lies between the interval 115-135 is calculated as follows;

P(115<X<135)=P(115-125/10 < X-μ/σ <135-125/10)

= P(-1<Z<1)

= 0.6827 (Obtained from the standard normal distribution table)

Therefore, 68.27% of values are within 2 standard deviations of the mean.

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Determine if the statement is true or false, and justify your answer. If (u1, u2, u3) spans R3, then so does (u1, u2, uz, u). O False. Consider u4 =0 True, the span of a set of vectors can only increase (with respect to set containment) when adding a vector to the set. O True, since the span of {ul, u2, u3, u4} is a subset of the span of {u1, u2, us), O False. Consider u4

Answers

The statement is false because adding a vector to a set of vectors can increase its span, but the new span is not necessarily the same as the original span.

The statement is false. To prove this, consider three vectors u1, u2 and u3 that span R3, and a vector u4 that is not a linear combination of

u1, u2 and u3.

The span of

{u1, u2, u3, u4}

will be a subset of the span of

{u1, u2, u3}.

This means that the span of

{u1, u2, u3, u4}

will contain all the vectors that the span of {u1, u2, u3} contains, plus the vector u4. However, it does not necessarily mean that the span of

{u1, u2, u3, u4} will be the same as the span of {u1, u2, u3},

as there may be other vectors that are in the span of

{u1, u2, u3, u4}

but not in the span of {u1, u2, u3}. Hence, the statement is false.

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The complete question is

Determine if the statement is true or false, and justify your answer. If (u1, u2, u3) spans R3, then so does (u1, u2, uz, u). O False. Consider u4 =0 True, the span of a set of vectors can only increase (with respect to set containment) when adding a vector to the set. O True, since the span of {ul, u2, u3, u4} is a subset of the span of {u1, u2, us), O False. Consider u4 = 0. The span of {u1, u2, u3, u4} is a subset of the span of {u1, u2, us}, but the span of {u1, u2, u3, u4} is not the same as the span of {u1, u2, us}.

Which point is a solution to the inequality 2x - у < 10?

Answers

The point that is a solution to the inequality 2x - у < 10 is (2, -5)

How to determine the point on the solution

From the question, we have the following parameters that can be used in our computation:

2x - y < 10

Next, we make the variable y the subject of the formula

Using the above as a guide, we have the following:

-y < 10 - 2x

Divide both sides by -1

y > 2x - 10

Assume a value for x

y > 2 * 2 - 10

So, we have

y > -6

This means that the possible y value at x = 2 is -5

Hence, the point is (2, -5)

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Can you help me with this

Answers

Answer:

[tex]y=-3x-3[/tex]

Step-by-step explanation:

[tex]y+15=-3(x-4) \\ \\ y+15=-3x+12 \\ \\ y=-3x-3[/tex]



The bottom of a ladder must be placed 2 feet from a wall. The ladder is 15 feet long. How far above the ground does the top of the ladder touch the
wall?
Round to the nearest tenth.
X=
feet

Answers

Answer: 14.9 feet


Step-by-step explanation:

To find the distance above the ground that the top of the ladder touches the wall, we can use the Pythagorean Theorem.

We can set up the equation as follows:

a^2 + b^2 = c^2

Where c is the length of the ladder (15 feet), a is the distance above the ground that the top of the ladder touches the wall, and b is the distance that the bottom of the ladder is from the wall (2 feet).

Substituting these values and solving for a, we get:

a^2 + 2^2 = 15^2

a^2 + 4 = 225

a^2 = 221

a = sqrt(221)

Rounding to the nearest tenth, we get a = 14.866 feet. This is the distance above the ground that the top of the ladder touches the wall.

Therefore, X = 14.9 feet.

Answer:

14.9

Step-by-step explanation:

[tex] {a}^{2} + {b}^{2} = {c}^{2} \\ {2}^{2} + {b}^{2} = {15}^{2} \\ 4 + {b}^{2} = 225 \\ 4 - 4 + {b}^{2} = 225 - 4 \\ {b}^{2} = 221 \\ \sqrt{ {b}^{2} } = \sqrt{221} \\ b = 14.866 \\ b = 14.9[/tex]

. Could the students use 24 paper squares to make quilts with 5 rows of
paper squares? How do you know? Use an array to help explain your
answer

Answers

The 24 paper squares cannot be used to make quilts with 5 rows of paper squares.

How to illustrate the expression?

It is important to note that an expression is simply used to show the relationship between the variables that are provided or the data given regarding an information. in this case, it is vital to note that they have at least two terms which have to be related by through an operator.

In this case, the 24 paper squares cannot be used to make quilts with 5 rows of paper squares. The appropriate number will be:

= 5 × 5

= 25

Also multiples of 5s can be used

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You are traveling from Minneapolis (3, 19) to Denver (-9, 11). You want to stop at a rest stop at exactly halfway. What are the coordinates of the halfway point?

Answers

The coordinate (x, y) of the midpoint is (2, 15)

What is Midpoint of a Line

The midpoint of a line is a point halfway between the two endpoints of the line, such that the line is divided into two equal segments. The coordinates of the midpoint can be found by taking the average of the x-coordinates of the endpoints and the average of the y-coordinates of the endpoints.

The formula of midpoint of a line is given as;

M = [(x₂ + x₁) / 2], [(y₂ + y₁) / 2]

The coordinates given are;

A = (3, 19)B = (-9, 11)

M = [(-9 + 3) / 2], [(11 + 19) / 2]

M = (6/3) , (30/2)

M = 2, 15

The midpoint is (2, 15)

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What is the smallest positive integer that is both a multiple of $7$ and a multiple of $4$?

Answers

The number that is both a multiple of 7 and 4 and is the smallest positive integer of the two is 28 .

What is a multiple ?

A multiple in mathematics refers to the outcome of multiplying two numbers together.

This means that the multiples of 4 can therefore be found to be:

4, 8, 12, 26, 20, 24, 28, 32, 36, 40

The multiples of 7 would also be:

7 , 14 , 21 , 28 , 35 , 42 , 49

Given these list of multiples, the multiple that appears in both sets and is the smallest to appear is 28. This makes 28 the smallest positive integer that is a multiple of 7 and 4.

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There is a line that includes the point (–4,2) and has a slope of –14. What is its equation in point-slope form?

Answers

The equation of the line that includes the point (–4,2) and has a slope of –14 is y - 2 = -14x - 56.

What is the equation of line passing through the given point and slope?

The equation of a line in point-slope form is expressed as;

y - y₁ = m( x - x₁ )

Where x and y are the coordinates and m is the slope.

Given the data in the question;

Point (-4,2)

x₁ = -4y₁ = 2Slope m = -14

To find the equation of the line that includes the point (–4,2) and has a slope of –14, we can use the point-slope form of the equation of a line, which is:

y - y₁ = m( x - x₁ )

Substituting the values given in the problem, we get:

y - 2 = -14(x - (-4))

Expanding the right side of the equation and simplifying, we get:

y - 2 = -14x - 56

Therefore, the equation of the line in point slope form is y - 2 = -14x - 56.

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