In the interval notation, the answer is [-5, ∞), for both x 0 and x -5.
When representing numbers between two numbers, either excluding or including the numbers, depending on the need, interval notations are employed. We employ the four interval notations shown below:
All digits from [a, b] up to and including both a and b.
All numbers between a and b, but not including an or b.
All numbers in the range (a, b), omitting a but including b.
[a, b] All numbers in the range [a, b], inclusive of a but exclusive of b.
The answer for x 0 and x -5 must be expressed using interval notation.
Each inequality is initially expressed in interval notation:
All numbers larger than 0—including 0—have the value x. This can be expressed as [0, ∞) in interval notation. Because is ambiguous, we omit it.
All numbers greater than -5, including -5, are expressed as x -5 x. This can be represented as [-5, ] in interval notation. Because is ambiguous, we omit it.
Now, we must find a solution for x 0 or x -5. Since the answer is "or," we take the unions of the two sets, hence the answer is:
[0, ∞) ∪ [-5, ∞) = [5, ∞).
The answer in interval notation for x 0 and x -5 is therefore [-5, ∞).
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PLEASE HELP ME WITH GEOMETRY
Answer:
Step-by-step explanation:
answer: 50
Okay so we need to find ABC, which is 2x, and we know the angles of a triangle all add up to 180.
To find angle C you must subtract the exterior angle from the total of the line, 180.
C = 180-145
C = 35
So now we have 3 elements, 95, 2x, and 35, and we know they all add up to 180 degrees.
95+35+2x=180
130+2x=180
50=2x
2x is the angle of ABC, so it's 50 degrees
Question You and a friend tutor for a total of 12 hours. Use the tape diagram to find how many hours you tutor. You tutor for hours.
The amount of time I spent tutoring from the tape diagram is 4 hours.
How to solve an equationLet x represent one rectangle. Therefore from the tape diagram:
Amount of hours I spent tutoring = x + x = 2x
Amount of hours my friend spent tutoring = x + x + x + x = 4x
Since both me and my friend spent a total of 12 hours, hence:
2x + 4x = 12
6x = 12
Dividing through by 6:
x = 2 hours
Amount of hours I spent tutoring = 2x = 2(2) = 4 hours
The amount of time I tutor is 4 hours.
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2y=6x+8 y=3x+1 Are the lines parallel and solve the equations
The lines are not parallel and the slope of the lines is 3 and intercept is 1
How do we know if two equation lines are parallel?Two lines are parallel if their slopes are equal and they have different y-intercepts. In other words, perpendicular slopes are negative reciprocals of each other.
In the two equations
2y = 6x+ 3
divide both sides by 2
y = 3x+1
This means that the slope of the line is 3.
And also in equation y = 3x+1. The slope of the line here is also 3.
Though both lines have the same slope but they have thesame y-intercept which is 1. Therefore the two lines are not parallel.
The slope of the equations is 3 and the intercept is 1
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simplify fully (2x-2)/(3x-3)
Answer:
In the exact form, it would be 2/3.
(Hope it works!)
Step-by-step explanation:
i need help with #5 please!!
Answer: [tex]x^{2} +9x+23[/tex]
Step-by-step explanation:
Given equation:
-f(x)+3g(x)
Since the f(x) and g(x) are already given in the problem, all you must do is plug in the values.
[tex]-(-x^{2} -8)+3(3x+5)\\=x^{2} +8+9x+15\\=x^{2} +9x+23[/tex]
Simplify 1.2(0.4-0.9)÷(-6) +3.1
The answer is 16/5=3.2
How to simplify the question?explanation
1.2(0.4-0.9)/(-6) +3.1
simplify the expression:
1.2(0.4-0.9)/-6+3.1
simplified the answer
16/5=3.2
expanded 16/5
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An experiment involves selecting a numbered chip, some black and some white, from a bag of chips. The probability of selecting a
black chip with an even number is The probability of selecting a black chip is
What is the probability of selecting a chip with an even number given that the chip is black?
Enter your answer, as a simplified fraction, in the boxes.
Answer:
sorry but i i don't know the answer
Arrange the following numbers in ascending order (From the least to the greatest).
(1) +8,+4,0,+2,+3 =
(2) -1,-11,-5,-0,-12
(1) +8,+4,0,+2,+3 = 0 , 2 , 3 , 4 , 8
(2) -1,-11,-5,-0,-12 = -12 , -11 , -5 , -1 , -0
The probability that a randomly selected visitor to a certain website will be asked to participate in an online survey is 0.40. Avery claims that for the next 5 visitors to the site, 2 will be asked to participate in the survey.
Is Avery interpreting the probability correctly?
answer choices
Yes, because 2 out of 5 is equal to 40%.
No, because there could be voluntary response bias.
No, because only 40% of all people will visit the site.
No, because 0.40 represents probability in the long run over many visits to the site.
No, Avery is not interpreting the probability correctly because 0.40 represents probability in the long run over many visits to the site. Therefore, option 'D' is the correct answer.
Probability refers to the possibility that an event will occur. It assesses the certainty of the event. Such as in the scenario given where the probability of a randomly selected visitor to a certain website participating in an online survey is 0.40. Avery claims that for the next five visitors to the site, two visitors will be asked to participate in the online survey. Avery interprets the probability incorrectly it is because 0.40 refers to the probability in the long run over several visits to the site.
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A cylindrical tank is half full of oil.
The cylinder has a base radius of 100cm.
The height of the cylinder is 250cm.
1litre=1000cm3
How many litres of oil are in the tank?
Round your answers to the nearest litre.
A cylindrical tank is half-full of oil. The cylinder has a base radius of 100 cm. The height of the cylinder is 250 cm than the oil present in the tank is 3926.990 lit.
Given :
The cylinder has a base radius of 100 cm.The height of the cylinder is 250 cmThe volume of the half cylinder is given by:
[tex]Volume= \frac{1}{2} (\pi r^{2} ) X h\\\\Volume=\frac{1}{2} X(\pi X(100)^{2} ) X 250[/tex]
[tex]Volume = Volume = 3926990.82 cm^{3}[/tex]
[tex]Volume = 3926.990 lit.[/tex]
So, 3926.990 lit. of oil are present in the cylindrical tank.
PLEASE HELP I NEED THE ANSWERS PLEASE I NEED HELP PLEASE
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Given: 0.2a +0.06 -0.05
Step 1: 2a +6=5
Step 2: 2a=-1
Step 3: a =-1/2
Answer:
a = -0.05
Step-by-step explanation:
0.2a + 0.06 = -0.05
Step 1: 100 * (0.2a + 0.06 = 0.05)
20a + 6 = 5
Step 2: 20a + 6 - 6 = 5 - 6
20a = -1
Step 3: 20a / 20 = -1/20
a = -0.05
pls help worth b and c “find the slope of each line”
The second angle of a triangle is 60 more than the first angle. The third angle is three times the first. Find the three angels
Answer: three angles of the triangle are 24 degrees, 84 degrees, and 72 degrees.
Step-by-step explanation:
Let's call the first angle x.
Then the second angle is x + 60.
And the third angle is 3x.
We know that the sum of the angles in a triangle is always 180 degrees.
We can use this information to set up the following equation:
x + x + 60 + 3x = 180
5x + 60 = 180
5x = 120
x = 24
So the first angle is 24 degrees.
The second angle is 24 + 60 = 84 degrees.
And the third angle is 3x = 3 * 24 = 72 degrees.
Therefore, the three angles of the triangle are 24 degrees, 84 degrees, and 72 degrees.
Remove all perfect squares from inside the square root.
[tex]\sqrt180[/tex]
By factor decomposition and algebra properties, the number √180 is equal to 6√5.
How to determine the most simple form of a square root by factor decomposition and algebra properties
In this problem we find an imperfect square root, that is, a square root whose root is an integer. However, we can simplify the expression by means of algebra properties and by redefining the number inside the root operator as a product of integers. Now we proceed to show the complete steps of the procedure:
First, decompose the number inside the root operator by factor decomposition:
√180 = √(2² · 3² · 5)
Second, simplify the resulting expression by algebra properties concerning roots:
√180 = √2² × √3² × √5
√180 = 2 × 3 × √5
√180 = 6√5
Therefore, the number √180 is equivalent by algebra properties and factor decomposition to 6√5.
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Write an equation of the line below.
The equation of the line is y=1/3x.
What is Slope of Line?The slope of the line is the ratio of the rise to the run, or rise divided by the run. It describes the steepness of line in the coordinate plane.
The slope intercept form of a line is y=mx+b, where m is slope and b is the y intercept.
The slope of line passing through two points (x₁, y₁) and (x₂, y₂) is
m=y₂-y₁/x₂-x₁
From the given graph let us take two points through which the line passes.
(-6, -2) and (6, 2)
m=2-(-2)/6-(-6)
m=4/12=1/3
The slope of the line is 1/3.
Now we have to find the y intercept
2=1/3(6)+b
2=2+b
b=0
The equation of line is y=1/3x
Hence, the equation of the line is y=1/3x.
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NEED HELP ASAP!
Kurume Abdulla is purchasing a country estate with a selling
price of $1,246,500. His offer of 95% of the asking price is
accepted by the seller. His lender requires a 30% down payment
for estates.
a. What is the purchase price of the estate?
b. What is the amount of the down payment?
c. What is the amount of the mortgage loan?
Answer:
a. The purchase price of the estate is $1,246,500 x 95% = $<<124650095.01=1182975>>1,182,975.
b. The amount of the down payment is $1,182,975 x 30% = $<<118297530.01=354452.5>>354,452.5.
c. The amount of the mortgage loan is $1,182,975 - $354,452.5 = $<<1182975-354452.5=828492.5>>828,492.5.
Step-by-step explanation:
What is the value of X in centimeters
Answer:
x = 22.5
Step-by-step explanation:
Similar figures have proportional side lengths
[tex]\frac{12}{18}[/tex] = [tex]\frac{15}{x}[/tex] [tex]\frac{12}{18}[/tex] = [tex]\frac{2}{3}[/tex]
[tex]\frac{2}{3}[/tex] = [tex]\frac{15}{x}[/tex]
2 x 7.5 = 15, so 3 x 7.5 = 22.5
x = 22.5
Create an equation for the blue car (Keep in mind the equation of the red car AND the picture of the accident)
(PLEASE LOOK AT THE PICTURE)
The blue car has an equation of y = 1/6x + 1/2
How to determine the equation of the blue car?From the question, we have the following parameters that can be used in our computation:
Cars = Blue and Red cars
For the red car, we have
y = -6x + 1/2
The equation of a line can be represented as
y = mx + c
Where
slope = m
By comparing the equations, we have:
m = -6
The blue car and the red car are perpendicular to one another
The slopes of perpendicular lines are opposite reciprocals
This means that the slope of the blue car is 1/6
i.e. m = 1/6
Recall that:
The equation of a line can be represented as
y = m(x - x1) + y1
Where
slope = m = 1/6
(x, y) = (0, 1/2)
So, we have
y = 1/6 * (x - 0) + 1/2
This gives
y = 1/6 * (x) + 1/2
Evaluate
y = 1/6x + 1/2
Hence, the equation of the blue car is y = 1/6x + 1/2
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What is the difference between the two expressions?
The system of equations are A = 8x³ and B = 2x³ and difference of the two equations is C = 6x³
What is an Equation?Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let the difference of the two expressions be C
Let the first equation be represented as A
Now , the value of A = ( 2x )³
On simplifying the equation , we get
A = ( 2x )³ be equation (1)
A = ( 2 )³ ( x )³
A = 8x³
And , let the second equation be represented as B
The value of B = 2x³ be equation (2)
Now , dividing equation (1) by equation (2) , we get
A/B be equation (3)
Substituting the values in the equation , we get
A/B = 8x³/2x³
A/B = 8/2
A/B = 4
Multiply by B on both sides of the equations , we get
A = 4B
So , 8x³ = 4 ( 2x³ )
The difference between the two expressions C = 8x³ - 2x³ = 6x³
Therefore , the value of C is 6x³
Hence , the system of equations are solved
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The function F(C)=1.8C+32 represents Fahrenheit, F, as a function of the temperature in Celsius, C.
Given that the team temperature in celsius is 92, find the temperature in Fahrenheit.
The value of 92°C to Fahrenheit will be 197.6°F.
How to illustrate the expression?In Mathematics, 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.
Since the function F(C)=1.8C+32 represents Fahrenheit, F, as a function of the temperature in Celsius,.
Therefore, 92°C to Fahrenheit will be:
= (1.8 × 92) + 32
= 197.6°F
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Please someone help me !!!
the total cost to fill up half of the tank will be $20.25.
What is the arithmetic operation?
The four fundamental operations of arithmetic are addition, subtraction, multiplication, and division of two or more quantities. Included in them is the study of numbers, especially the order of operations, which is important for all other areas of mathematics, including algebra, data management, and geometry. The rules of arithmetic operations are required in order to answer the problem.
For 500 miles the car consumes 60 gallons of gas.
The capacity of the tank is 13.5 gallons.
Filling up half of the tank will require 6.75 gallons of gas.
The cost of a gallon of gas is $3.
So the total cost will be 6.75*3 = $20.25
Hence, the total cost to fill up half of the tank will be $20.25.
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(Score for Question 1: ______ of 3 points)
1. Represent each situation with an inequality.
(a) The sum of a number and 16 is at least -3.
(b) A number increased by -3 is greater than 16.
(c) -3 more than a number is no more than 16.
Answer:
Hello Dear,
Could you send a better explained question?
Thanks!
There are 60 households in a village. Some households own no car, some own one car, and some own two cars. No
household owns more than two cars. There are more households that own no car than households that own one car, and
more that own one car than two.
(a) (i) What is the smallest total number of cars that could be owned by households in the village? [1]
(ii) What is the largest total number of cars that could be owned by households in the village? [1]
A survey has shown that exactly twice as many households own one car as own two cars.
(b) What now is the largest total number of cars that could be owned by households in the village? [2]
On solving the provided question we can say that - probability of P(A B) = P(A) + P(B) - P(A B)= 70%
What is probability?A branch of mathematics known as probability measures the possibility of an event happening or a proposition being true. The probability of an occurrence is a number between 0 and 1, where roughly 0 denotes the event's improbability and 1 denotes certainty. A probability is a numerical representation of the possibility or probability that a specific event will take place. Probabilities can alternatively be stated as percentages ranging from 0% to 100%, or as percentages from 0 to 1. the proportion between the number of events in a comprehensive collection of equally likely outcomes that lead to a certain occurrence and the entire number of outcomes.
P(A)= 60%, P(B) = 30%
P(A B) = 20%
P(A B) = P(A) + P(B) - P(A B)= 70%
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39.
A) adjacent
B) vertical
C) alternate exterior
D) supplementary
40.
A) adjacent
B) supplementary
C) alternate exterior
D) alternate interior
41.
A) vertical
B) supplementary
C) alternate interior
D) complementary
42.
A) adjacent
B) alternate interior
C) vertical
D) alternate exterior
39) a and b here are Adjacent Angles.
40) a and b here are Adjacent Angles.
41) a and b here are Complementary Angles.
42) a and b here are Alternative Interior Angles.
What rules must be met for two angles to be considered Adjacent Angles?The following requirements must be met for two angles to be adjacent.
A common vertex connects two angles.A common arm connects two angles.There are two arms that are unusual.On the other hand, when a transversal connects two coplanar lines, alternate interior angles are generated. They are on the inside of the parallel lines, but on the outside of the transversal.
It is worth noting that Alternate Interior Angles are congruent.
Mathematically, two angles are called complementary IF their measures SUM to 90 degrees.
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The difference of the square of a number and 18 is equal to 3 times that number. Find the positive solution
The positive solution for the number is 6 as the expression will result to a quadratic equation.
What is a quadratic equationA quadratic equation is a second-order polynomial equation in a single variable x in the form ax² + bx + c = 0. with a ≠ 0.
We Shall represent the unknown number with the letter x so that we have:
x² - 18 = 3x
x² - 3x - 18 = 0 {a quadratic equation}
x² + 3x - 6x - 18 = 0 {expand the middle term}
x(x + 3) -6(x + 3) = 0 {factor out x + 3}
(x - 6)(x + 3) = 0
x - 6 = 0 or x + 3 = 0
x = 6 or x = -3
we have two solutions for the quadratic equation and 6 is the positive solution
Therefore, the positive solution for the quadratic equation is 6
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Find the equation of the line that passes through (-4, 2) and is perpendicular to the line that goes through (-4, 6) and (5, 2).
Answer:
9x -4y = -44
Step-by-step explanation:
You want the equation of the line through (-4, 2) and perpendicular to the line through (-4, 6) and (5, 2).
Equation of a LineThe equation of a line through (h, k) and perpendicular to the line through (x1, y1) and (x2, y2) can be written as ...
(x2 -x1)(x -h) +(y2 -y1)(y -k) = 0
Using the given points, this becomes ...
(5 -(-4))(x -(-4)) +(2 -6)(y -2) = 0
9(x +4) -4(y -2) = 0
Expanding this gives the general form equation:
9x -4y +44 = 0
Subtracting the constant gives the standard form equation:
9x -4y = -44
Ten pennies weigh approximately two ounces. How many ounces would you expect a collection of pennies worth $13.40 to weigh?
Answer:
268 ounces
Step-by-step explanation:
13.40 in pennis is 1,340 pennies. If 10 pennies weigh 2 ounces then each penny weighs .2 ounces. So then all you have to do is 1,340×.2 which is 268. So, a bunch of pennies worth $13.40 weigh 268 ounces. :)
Answer:
268 ounces
Step-by-step explanation:
$13.40 = 1340 penny, so, 1340/10*2 is 268
Graph the solution to the inequality on the number line.
w-0.9>-2.1
First select the correct ray. Then select the location of the endpoint to plot the inequality on the number line.
The solution set for the inequality given in the task content as required is; w > -1.2.
The graph of the inequality on the number line is as represented in the attached image.
What is the graph of the inequality given; w - 0.9 > -2.1?It follows from the task content that the graph of the inequality w - 0.9 > -2.1 as required is to be determined.
Since the given inequality is; w - 0.9 > -2.1.
The inequality can be solved by first adding 0.9 to both sides of the inequality; Additive property of inequalities;
w - 0.9 + 0.9 > -2.1 + 0.9.
w > -1.2.
On this note, the correct ray is that which points rightwards with an open ring (indicating the > sign).
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The solution of the inequality is graphed in the number line and attached
How to solve the inequalityWhat is inequality in math?Inequality, is a mathematical statement expressing an order relationship between two numbers or algebraic expressions, such as greater than, greater than or equal to, less than, or less than or equal to.
Solid dot and hollow dot in inequality
A region on one side of a line can be used to graphically show an inequality.
For the purpose of indicating that a line is not a part of the region, inequality plots that employ the < or > symbols have a hollow dot
Plotting a solid dot indicates that an inequality that uses the symbol ≤ or ≥ is included in the region.
In the problem, w - 9 > -2.1 will use a hollow dot
w - 0.9 > -2.1
w > -2.1 + 0.9
w > -1.2
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