A parameter that represents the amount of spread of individuals in the entire population of interest, which is typically unknown is the population mean.
What is meant by population mean?The population mean can be determined by dividing the total number of values in the given data/population by the sum of all values in the data/population. The whole sum of the numbers is referred to as summation. The μ sign stands for the population mean.
The average calculated from the entire group, distribution, or population is known as the population mean. It is calculated by dividing the sum of all population variables by the total population of variables. Here, μ exists the population mean. ∑X exists the sum of all the observations in the population.
The population mean is a quantity that expresses the population's overall degree of individual variation, which is often unknown.
Therefore, the correct answer is option c) the population mean.
The complete question is:
a parameter that represents the amount of spread of individuals in the entire population of interest, which is typically unknown is group of answer choices the (true) standard error.
a) the sample standard deviation.
b) the estimated standard error.
c) the population mean.
d) the population standard deviation.
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2.Which equations represent linear functions?a. y = -2xb. -4y = 3xc.y= 3x^2 -5d. 2x-3y =12
Of the functions listed in the options the ones that are linear are:
a. y = -2x
b. -4y = 3x
d. 2x - 3y = 12
Linear equations are equations of the first order. These equations are defined for lines in the coordinate system.
Solve for x in the diagram below
If two angles be 10x + 5 and 15x - 30 then the value of x = 7.
How to find the value of x?Let the two angles be 10x + 5 and 15x - 30.
simplifying the above two equations, we get
10x + 5 = 15x - 30
Subtract 5 from both sides
10x + 5 - 5 = 15x - 30 - 5
Simplifying the above equations,
10x = 15x - 35
Subtract 15x from both sides of the equation
10x - 15x = 15x - 35 - 15x
Simplifying the above equation, we get
-5x = -35
Divide both sides by -5
[tex]$\frac{-5 x}{-5}=\frac{-35}{-5}[/tex]
x = 7
Therefore, the value of x = 7.
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Which is not a statistical question? * 1 point how much did the corn plants grow last week? what is the height of the tallest corn plant? how much water did the corn plants get each day last month? how tall are the corn plants?
The option that is not a statistical question is D. how tall are the corn plants?
What is a statistical question?A statistical question is one that may be answered by gathering data and for which the data will vary. Questions answered with a single data point are not statistical questions since the data utilized to answer the question is not variable.
A statistical question is one that can be answered by gathering varying amounts of data. A statistical inquiry is one that yields varying responses and outcomes (data). It must be collected on more than one person and there must be room for the facts to vary.
Therefore, based on the information illustrated, the correct option is D. It was too general and not specific
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is the ordered pair (-8 1) a solution to the equation y=1/2x-3
No, the ordered pair (-8,1) is not a solution to the equation y=(1/2)x-3.
In the question ,
an equation y=(1/2)x-3 is given ,
if the ordered pair (-8,1) is a solution of the equation , then it should satisfy the equation .
Substituting x=-8 and y=1 in the equation y=(1/2)x-3 , we get
y=(1/2)x-3
1 = (1/2)(-8) -3
1 = -8/2 -3
1 = -4-3
1 ≠ -7
Since 1≠7 , the ordered pair (-8,1) is not a solution to the equation y=(1/2)x-3 .
Therefore , No , the ordered pair (-8,1) is not a solution to the equation y=(1/2)x-3.
The given question is incomplete , the complete question is
Is the ordered pair (-8,1) a solution to the equation y=1/2x-3 ?
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Eric ordered a set of red and yellow pins. He received 70 pins in all. 21 of the pins were red. What percentage of the pins were red?
Answer:
The formula for finding the percentage of something is given as: (No. of items you want to find÷Total no. of items)×100
Percentage of red pins = (21÷70)×100
= 30%
Frigidia is a colony in Antarctica. The colony is 1,000 square kilometers in size. Currently, 30,000 people live there. Last year, 10,000 children were born and 2,000 people immigrated. 20,000 people died and 5,000 emigrated. It is believed that the island could support up to 50 people per square kilometer.
The current growth rate is ___.
4.3 %
-4.3%
-43%
43%'
Answer:
ewan ko po pero yan yung alam ko4.3%
I hope its help
PLS HELP ASAP
!!!!!!
If h = {(1,5), (-2,6), (4, -3), (6,9)} and
m = {(3,4), (2,-2), (-2,6), (5,8)}, what is (hm) (2)? (See image below)
Answer: [tex](h\circ m)(2) = 6[/tex]
=======================================================
Explanation:
The notation [tex](h \circ m)(2)[/tex] refers to function composition
It's the same as writing [tex]h(m(2))[/tex]
According to
m = {(3,4), (2,-2), (-2,6), (5,8)}
We have m(2) = -2 since x = 2 leads to m(x) = -2
Then the output -2 is treated as the input of the outer function h(x)
Looking through
h = {(1,5), (-2,6), (4, -3), (6,9)}
shows that h(-2) = 6
Therefore, [tex]h(m(2)) = h(-2) = 6, \ \text{ and } \ (h\circ m)(2) = 6[/tex]
Optionally we can write out a table like shown below.
The row highlighted shows the input x = 2 leading to m(x) = -2, which is then plugged into h(x) to get 6 as the final output. Think of it like a chain of dominoes.
what 15/60 as a decimal?
Answer:
0.25 (1/4 as a fraction)
Step-by-step explanation:
what 15/60 as a decimal?
Fraction is a division, 15/60 is the same as 15 : 60so
15 : 60 =
0.25 (1/4 as a fraction)
8. Find the polynomial function of degree 3 for the given conditions I.f(1) = 32 and x-2, x-3,x+1 are factors of the polynomial II.f(3) = -24 and 5,2,4 are zeros of the polynomial
Part I
In factored form, [tex]f(x)=a(x-2)(x-3)(x+1)[/tex]. Substituting x=1,
[tex]f(1)=32=a(1-2)(1-3)(1+1)\\\\\implies 32=4a\\\\a=8\\\\\therefore f(x)=8(x-2)(x-3)(x+1)[/tex]
Part II
In factored form, [tex]f(x)=a(x-5)(x-2)(x-4)[/tex]. Substituting x=3,
[tex]f(3)=-24=a(3-5)(3-2)(3-4)\\\\\implies 24=2a\\\\a=12\\\\\therefore f(x)=12(x-5)(x-2)(x-4)[/tex]
Solve each system of the new equations by adding or subtracting
Given the equations
x + y = 5----------------------(1)
x - 3y = 3-----------------------(2)
Subtract equation (2) from (1)
x - x -3y - y = 3 - 5
-4y = -2
Divide both -4
[tex]\begin{gathered} \frac{-4y}{-4}\text{ = }\frac{-2}{-4} \\ y\text{ = }\frac{1}{2}\text{ = 0.5} \\ \end{gathered}[/tex]Substitute y = 1/2 into equation (1)
x + y = 5
[tex]\begin{gathered} x\text{ + }\frac{1}{2}\text{ =5} \\ x\text{ = 5 -}\frac{1}{2} \\ x\text{ = }\frac{10-1}{2} \\ x=\frac{9}{2}\text{ = 4.5} \\ \end{gathered}[/tex]Hence, the solution to the equations is
[tex]\begin{gathered} x\text{ = }4.5,\text{ y = 0.5} \\ Or\text{ in coordinate form, (4.5, 0.5)} \end{gathered}[/tex]3 points
Simplify the following expression
I WILL USE THE LAWS OF EXPONENTS
[tex] {x}^{n} \times {x}^{m} \\ = {x}^{n + m} [/tex]
AND
[tex] \frac{{x}^{n}}{ {x}^{m} } \\ = {x}^{n - m} [/tex]
[tex] \frac{3 {x}^{ - 2 + 5} }{ {x}^{8} } \\ = \frac{3 {x}^{3} }{ {x}^{8} } \\ = 3 {x}^{3 - 8} \\ = 3 {x}^{ - 5} [/tex]
ATTACHED IS THE SOLUTION.
Answer:
i hope this one is good for you
a scientist runs an experiment involving a culture of bacteria. she notices that the mass of the bacteria in the culture increases exponentially with the mass increasing by 229% per week. what is the 1-week growth factor for the mass of the bacteria? what is the 1-day growth factor for the mass of the bacteria? by what percent does the mass of bacteria increase by each day? % if the mass of the bacteria instead increased by 453% per week, by what percent would the mass increase by
The 1-week growth factor for the mass of the bacteria is 3.29.
The 1-day growth factor for the mass of the bacteria is 1.185.
The percentage increase in the mass of bacteria is 18.5%.
The 1-day growth percent for the mass of the bacteria if the mass of the bacteria increased by 453% per week is 27.7%.
The 1-week growth factor for the mass of the bacteria is 1 + (229%*1).
The 1-week growth factor for the mass of the bacteria is 3.29.
The 1-day growth factor for the mass of the bacteria is (3.29)^(1/7).
The 1-day growth factor for the mass of the bacteria is 1.185.
The percentage increase in the mass of bacteria is 18.5%.
The new 1-week growth factor for the mass of the bacteria is 1 + (453%*1).
The new 1-week growth factor for the mass of the bacteria is 5.53.
The 1-day growth factor for the mass of the bacteria if the mass of the bacteria increased by 453% per week is (5.53)^(1/7).
The 1-day growth factor for the mass of the bacteria if the mass of the bacteria increased by 453% per week is 1.277.
The 1-day growth percent for the mass of the bacteria if the mass of the bacteria increased by 453% per week is 27.7%.
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2(5+x)-1=3x+9splve for x
2(5 + X) - 1 = 3X + 9
Step 1: Expand the terms in the bracket
=> 2 x 5 + 2 x X - 1 = 3X + 9
=> 10 + 2X - 1 = 3X + 9
Step 2: collect like terms
=> 2X - 3X = -10 + 1 + 9
=> -X = 0
Select all of the following equation(s) that are quadratic in form.
A C E
Those are the answers
Answer:
A- x4 – 6x2 – 27 = 0D- 6(2x + 4)2 = (2x + 4) + 2E- 6x4 = -x2 + 5Step-by-step explanation:
The surface area S(r) in square units of a cylinder with a volume of 18 cubic units is a function of its radius r in
units where S(r) = 2rr²+36. What is the surface area of a cylinder with a volume of 18 cubic units and a
radius of 3 units
The surface area of a cylinder with a volume of 18 cubic units and a radius of 3 units is 68.52 units².
How to calculate the surface area?The volume of a cylinder is calculated as:
= πr²h
In this case, the volume is given as 18 units³. The computed height is 0.637 units.
The surface area will be:
= 2πr² + 2πrh
= 2(3.14 × 3²) + (2 × 3.14 × 3 × 0.637)
= 56.52 + 12
= 68.52 units²
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Each square on a grid represents 1 unit on each side. Match the numbers with the slopes of the lines.
50 POINTS + BRAINLY FOR CORRECT ANSWER!!!
Answer
Graph 1 = 1/3 slope
Graph 2 = -1/3 slope
Graph 3 = 3 slope
Graph 4 = -3 slope
I found these by counting rise over run,
or y/x to points on the line that cross the x or y axis.
The graphs that have a line that go up from left to right are positive slopes
The graphs that have a line that go down from left to right are negative slopes
Problems solved!
The area of the arctic ocean is about 5 millon square miles. this is about 16% of the area of which ocean pacific 64 million square miles or indian 25 million square miles
The answer of this question is Indian Ocean
It is the Arctic Ocean.
18% of the Indian Ocean's surface, and the size of 12% of the Atlantic Ocean.
These two oceans are the closest to the Arctic Ocean in terms of size. It depends on whose answers are listed in the table because they are both close to the 16% mark. The closest is the Indian.
Of the five major oceans in the globe, the Arctic Ocean is the smallest and shallowest. It is regarded as the coldest ocean and covers an area of roughly 14,060,000 km2 (5,430,000 sq mi). Despite some oceanographers referring to it as the Arctic Mediterranean Sea, the International Hydrographic Organization (IHO) classifies it as an ocean. Approximately, it has been compared to an estuary of the Atlantic Ocean. In addition, It's been analogized to roughly an estuary of the Atlantic Ocean.
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A square has approximately 300 square feet . The length of each side of the square is between which two whole numbers?
Area = 300 ft^2
Formula
Area = length of a side x length of a side
Substitution
300 = length of a side ^2
[tex]\sqrt{300}[/tex][tex]\sqrt{300}\text{ = 17.32}[/tex]The length of a side is between 17 and 18
Answer:
The length of the side of the square is approximately [tex]17.32[/tex] feet, which lies between the whole numbers [tex]17[/tex] and [tex]18[/tex].
Step-by-step explanation:
Step 1: Assume your variable
Since all the sides of a square are the same, let's consider the side to be the variable: [tex]x[/tex].
Step 2: Create an equation
The formula for the area of a square is:
[tex]\text{Area}=\text{Side}^{2}[/tex]
We have assumed the side to be [tex]x[/tex], and the area is said to be [tex]300[/tex], so substitute these values into the formula:
[tex]\text{Area}=\text{Side}^{2}\\300=x^{2}[/tex]
Step 3: Solve the equation
Using the formula for the area of a square, we came to find an equation:
[tex]x^{2}=300[/tex]
Now, let's find the value of [tex]x[/tex]:
[tex]x^{2}=300\\\\\text{Square root both sides of the equation:}\\\sqrt{x^{2}}=\sqrt{300}\\\\\text{Simplify:}\\x=\sqrt{300}\\\\\text{Calculate:}\\x\approx 17.32[/tex]
The length of the side of the square is approximately [tex]17.32[/tex] feet.
As we know, this number lies between [tex]17[/tex] and [tex]18[/tex].
Rewrite one fourteenth times x cubed times y plus three fourteenths times x times y squared using a common factor.
The expression which can be rewritten using a common factor is [tex]\frac{xy}{14} (x^{2} +3y)[/tex].
According to the question,
We have the following information:
One fourteenth times x cubed times y plus three fourteenths times x times y squared.
(We know that 'times' has to be replaced with multiplication.)
Now, we will change this into mathematical expression:
[tex]\frac{x^{3} y}{14} +\frac{3xy^{2} }{14}[/tex]
Now, from these two terms, the common factor can be [tex]\frac{xy}{14}[/tex].
(Common factor means that the number and the variables taken as a common factor should be able to completely divide the terms given any expression.)
Now, taking it as a common factor, we have the following expression:
[tex]\frac{xy}{14} (x^{2} +3y)[/tex]
Hence, the required expression is [tex]\frac{xy}{14} (x^{2} +3y)[/tex].
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What are some organizations in the college Edward waters university?
Organizations in College Edward Waters University include
Accounting ClubEconomics ClubDelta Sigma Pi, Theta Omega ChapterGraduate Business Student Association (GBSA)Hilltop American Marketing AssociationWhere is the college Edward waters university?College Edward waters university was the first independent higher institution and black college located in Florida state of the United States of America.
The institution was found in 1866 in Jacksonville, Florida. It is owned by African Methodist Episcopal Church which is a Christian denomination.
Organizations refers to arrangement where people come together for a defined purpose. Organizations so exist in this high institution of learning
Delta Sigma Pi, Theta Omega Chapter is one of the organizations in this institution. The purpose of this organization is aid students in studying business in several ways and financial aids is one of them.
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shipping company A charges a flat fee of $7 plus $0.50 for each pound shipping company B charges a flat fee of $11 plus $0.25 for each pound
The number of pounds when company A and B have same amount is 16 pounds.
What is an equation?A mathematical equation is the statement that illustrates that the variables given. In this case, two or more components are taken into consideration to describe a scenario.
In this case, shipping company A charges a flat fee of $7 plus $0.50 for each pound shipping company B charges a flat fee of $11 plus $0.25 for each pound.
Let each pound be represented by p.
Company A will be 7 + 0.50p
Company B will be 11 + 0.25p
We will equate both equations.
7 + 0.50p = 11 + 0.25p
Collect like terms
0.50p - 0.25p = 11 - 7
0.25p = 4
Divide
p = 4 / 0.25
p = 16
The number of pounds is 16 pounds.
The complete information is given below.
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shipping company A charges a flat fee of $7 plus $0.50 for each pound shipping company B charges a flat fee of $11 plus $0.25 for each pound. How many pounds will give an equal amount?
L
6
A savings account balance can be modeled by the graph of the linear function shown on the grid.
Balance (dollars)
450
400
350
300
250
200
150
100
50
y
Savings Account
0 1 2 3 4 5 6 7 8 9
Number of Deposits
X
What is the rate of change of the balance with respect to the number of deposits?
An algebraic expression known as a linear expression has terms that are either constants or variables raised to the first power. Alternatively put, none of the exponents can be greater than 1. As an illustration, while x is a variable raised to the first power, x2 is a variable raised to the second power. An illustration of a constant is 5.
Linear expression: what is it?The number of deposits will change at a 100 percent rate.
Given that, consider the image of the linear function's graph.
Currently, the graph's two points are (3, 350) and (2, 250).
Rate of change is therefore equal to (250 - 350) / (2 - 3)
= -100/-1
= 100.
The rate of change will therefore be 100 in relation to the number of deposits.
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Solve the equation. (Enter your answers as a comma-separated list.)x210x − 6x10x = 27(10x)x =
Answer:
x = -3, 9
Explanation:
First, let us divide both sides of the equation by 10^x; this gives,
[tex]\frac{x^210^x-6x\times10^x}{10^x}=\frac{27\times10^x}{10^x}[/tex][tex]\Rightarrow x^2-6x=27[/tex]subtracting 27 from both sides gives
[tex]x^2-6x-27=0[/tex]The left-hand side can be factored as
[tex](x-9)(x+3)=0[/tex]which gives us two further equations
[tex]\begin{gathered} x-9=0 \\ \boxed{x=9.} \end{gathered}[/tex][tex]\begin{gathered} x+3=0 \\ \Rightarrow\boxed{x=-3.} \end{gathered}[/tex]Hence, the two solutions we get are x = 9 and x = -3.
Which line on the xy-plane has a positive slope?
Line 1
Line 2
Line 3
Line 4
Please only answer with the options provided
Line 2 has a positive slope with respect to the angle made with the x-axis.
What is the slope?Slope refers to the tan of the angle with the x-axis. For example. if the line makes an angle β with the x-axis, then the slope is the tan β.
Now taking line 1,
The line is parallel to the x-axis, therefore the line makes 0 angles with the axis which gives slope 0.
Now taking line 2,
The line passes to the origin and has the equation x=y, thus the slope is 1
Now taking line 3,
The line is parallel to the y-axis, therefore the line makes 90°, thus the slope is 1/0 which gives infinity.
Now taking line 4,
The line is making an angle of 60°, therefore the line is having a slope: - [tex]\sqrt{3}[/tex]
Hence considering the above values, line 2 has a positive slope only.
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Please find the coordinates and also reflect the points on the axis’s, and please demonstrate and plot the points on the graph too reflect it.
A' = (1, 3)
B' = (0, 6)
C' = (-3, 5)
D' = (-2, 2)
Identify the degree and leading coefficient of the given power function
In a equation as above:
a is the leading coefficient
n is the degree
For the given equation:
[tex]-2x^2[/tex]The coefficient is: -2The degree is: 2given the domain {-2,2,4} what is the range for relation 3x+y=3a (-9,3,9)b (9,-3,-9)c (-3,9,15)d (0,5,7)
the relation is 3x + y = 3
so,
y = 3x - 3
the domain is the values of x
so, substitute with each value of {-2,2,4} at the last equation of y
when x = -2 , y = 3*-2 - 3 = -6 - 3 = -9
when x = 2 , y = 3 * 2 - 3 = 6 - 3 = 3
when x = 4 , y = 3 * 4 - 3 = 12 - 3 = 9
so, the range will be {-9 , 3 , 9}
The correct answer is option a. (-9,3,9)x
help me plssssssssssssss
Answer:)0.3 I Think
Step-by-step explanation:
1.8/6
The answer is:
10.8 cm
Explanation:
6 × 1.8 = 10.8
- firstly, remove the decimal point
- Secondly, multiply regularly 6 by 18
- You'll get 108 as an answer
- Take back the decimal point one to the left because you took it one to the right before, so you will have to do the inverse of the previous action
Good luck
In this triangle AB = (2x-1) and BC = (9-x) and Ac = (x-3) Find with proof the perimeter of Triangle ABC
The perimeter of the triangle ABC is 2x + 5
How to determine the perimeterThe formula for determining the perimeter of a triangle is expressed as;
Perimeter = a + b + c
Where;
a is the length of one side(hypotenuse)b is the length of the adjacent sidec is the length of the opposite sideFrom the information given, we have that;
AB = (2x-1) BC = (9-x) AC = (x-3Substitute the values, we have;
Perimeter = 2x - 1 + 9 - x + x - 3
collect like terms
Perimeter = 2x - x + x - 1 + 9 - 3
add or subtract like terms
Perimeter = 2x + 5
The expression for the perimeter is 2x + 5
Hence, the perimeter is 2x + 5
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