Please help!!! The last one. Word answer

Please Help!!! The Last One. Word Answer

Answers

Answer 1

Often, variability is most usefully expressed in the same units as the original data. That's what standard deviation (square root of variance) does. In situations where that is the case, the variance is useful only for getting to the value of standard deviation.


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WILL NARK BRAINLIEST PLEASE HELP ASAP !!!!
What is the equation of this line in slope-intercept form? Enter your answer in the boxes.

Answers

y=4/3x+4

are you in k12 i tookthat test already

y = [tex]\frac{4}{3}[/tex] x + 4

the equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y-intercept )

to calculate m use the gradient formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (0, 4 ) and (x₂, y₂ ) = (-3, 0 ) ← 2 points on line

m = [tex]\frac{x0-4}{-3-0}[/tex] = [tex]\frac{-4}{-3}[/tex] = [tex]\frac{4}{3}[/tex]

the line crosses the y-axis at (0, 4 ) → c = 4

y = [tex]\frac{4}{3}[/tex] x + 4 ← in slope-intercept form


PLEASE HELP QUICK

Mike was in charge of collecting contributions for the Food Bank. He received contributions of $13, $34, $26, $31, and $28 from five co-workers. Find the median value of these contributions.

Answers

median = $28

the median is the middle value of the data arranged in ascending order

rearrange the data in ascending order

13 26 28 31 34

the middle entry is 28

hence median = $28


The median is the middle value so put the numbers in order from smallest to largest.

13,26,28,31,34

The middle value is 28, so the median value is 28

Which expression is equivalent to the expression -2 4/5+6/7: 2 4/5-6/7: -2 4/5-6/7: -(2 4/5+6/7): -(2 4/5 - 6/7)

Answers

When you factor out -1, you get ...

... -(2 4/5 - 6/7)

someone anyone help me???!!!!

Answers

Try this option (note, this is not the shortest way!), the additional elements are shown by green colour.

Answers: ∠1=∠2=50°; ∠3=82°

It was -8 degrees in the morning, but by 5pm the temperature decreased 10 degrees. What was the temperature then?

Answers

The temperature would be -18

An Uber fare in Columbus is $3.50 for the first ½ mile and additional mileage charged at a rate of $0.30 for each additional 0.1 mile. You plan to give the driver a $2 tip. How many miles can you ride for $15? Please show or explain your calculations.

Answers

If we consider the first half mile to be charged at $0.30 per tenth also, that half-mile costs $1.50 and the charges amount to a fixed fee of $2.00 and a variable fee of $0.30 per tenth mile.

After you subtract the $2 tip and the fixed $2 fee from the trip budget amount, you have $11.00 you can spend on mileage charges. At 0.30 per tenth mile, you can travel

... $11.00/$0.30 = 36 2/3 . . . . tenth-miles

The trip is measured in whole tenths, so you can ride ...

... 36 × 1/10 = 3.6 miles

_____

If you want to see this in the form of an equation, you can let x represent the miles you can travel. Then your budget amount gives rise to the inequality ...

... 3.50 + 0.30((x -.50)/0.10) + 2.00 ≤ 15.00

... 3.50 + 3x -1.50 +2.00 ≤15.00 . . . . . . . eliminate parentheses

... 3x ≤ 11.00 . . . . . . . . . . . . . . . . . . . . . . . . collect terms, subtract 4

... x ≤ 11/3 . . . . . . . . . . . . . . . . . . . . . . . . . . divide by 3

... x ≤ 3.6 . . . . . rounded down to the tenth

In figure, MN : NP = 9:1. If MP = 2. Find the distance from M to point K that is 1/4 the distance from M to N?
(A) 1 (B) 1 1/3 (C) 9/20 (D) 1 8/10

Answers

The distance MN is 9/(9+1) = 9/10 of the distance MP, so is

... MN = (9/10)×MP = (9/10)×2 = 9/5

The distance MK is 1/4 that, so is ...

... MK = (1/4)×(9/5) = 9/20 . . . . . matches selection (C)

Answer:

C

Step-by-step explanation:

the answer is C. give the person the brainly :) ignore this answer

it takes Jupiter 11.9 years to orbit,or go around the sun. Saturn takes 17.6 more years than Jupiter to orbit the sun. About how long does it take Saturn to orbit the sun?

Answers

Saturn takes 17.6 more years than Jupiter, so 17.6 + 11.9 will get you how long Saturn will take to orbit the sun, which would give you 29.5 years.

The time it takes Saturn to orbit the sun can be calculated by adding Jupiter's orbit time to the additional time Saturn takes after Jupiter. Saturn takes approximately 29.5 years to complete one orbit around the sun.

To find out how long it takes Saturn to orbit the sun, we know that Jupiter takes 11.9 years and Saturn takes 17.6 more years than Jupiter. So, Saturn takes 11.9 + 17.6 = 29.5 years to orbit the sun.

How do you write 300450390 in expanded form

Answers

300000000+400000+50000+300+90= 300450390

Hope this helped! :)

How do you write 300450390 in expanded form ?

300000000+ 400000+ 50000+ 300+ 90= 300450390

Hope this helps. If it does, please mark me brainiest! <3

Dad, Anna, and Todd are walking in a city park together. While dad made 3 steps, Anna made 5 steps. For every 3 of Anna's steps, Todd made 5 steps. Anna and Todd calculated that they did 400 steps together. How many steps did dad make during that period?

Answers

Answer:

Dad made 90 steps during that period.

Step-by-step explanation:

Let x,y,z be the steps made by dad,Anna and Todd.

Given that while dad made 3 steps, Anna made 5 steps.

That is [tex]\frac{x}{y}= \frac{3}{5}[/tex]

           [tex]y=\frac{5x}{3}[/tex]

And for every 3 steps Anna made, Todd made 5 steps.

That is [tex]\frac{y}{z}= \frac{3}{5}[/tex]

            [tex]z=\frac{5y}{3} =\frac{5(\frac{5x}{3}) }{3} =\frac{25x}{9}[/tex]

It is also given that total number of steps made by Anna and Todd is 400.

That is y+z=400

let us plugin y and z in terms of x.

       [tex]\frac{5x}{3} +\frac{25x}{9} =400[/tex]

        [tex]\frac{15x}{9} +\frac{25x}{9}=400[/tex]

       [tex]\frac{40x}{9}=400[/tex]

       [tex]x=400X\frac{9}{40} =90steps[/tex]

Hence Dad made 90 steps during that period.

Jeff and Jemaine go to an indoor ice skating ring. Jeff has to rent skates at $3.50 a pair while Jermaine has brought her own skates. Every hour of skating costs two dollars per person. Jeff can spend at most $10 while Jermaine can spend most $9. If they combine their money, how many hours could they skate together? Show work

Answers

9 hours but if you take out $3.50for the pir of skates it would be 8 hours.

Please Answer The Following Questions.

Answers

Answer:

4. 73

5. 40°

Step-by-step explanation:

The sum of the angles in a triangle is 180°. The sum of angles in a linear pair is 180°.

4. 45° +62° + k° = 180°

... 107 +k = 180 . . . . . collect terms, divide by °

... k = 180 -107 = 73 . . . . . subtract 107

_____

5. ∠STR = ∠SRT = 20°

... ∠STR +∠STU = 180°

... 20° + 4x = 180°

... 4x = 160° . . . . . . . . subtract 20°

... x = 40° . . . . . . . . . . divide by the coefficient of x

If y varies directly with x, write an equation for the direct variation. Then find the value.
If y=3 when x=2, find y when x=1



Plz show work

Answers

since y varies directly with y then

y = kx ( k is the constant of variation )

to find k use y = 3 when x = 2

k = [tex]\frac{y}{x}[/tex] = [tex]\frac{3}{2}[/tex]

equation is : y = [tex]\frac{3}{2}[/tex] x

When x = 1 then y = [tex]\frac{3}{2}[/tex] × 1 = [tex]\frac{3}{2}[/tex]


[tex]\bf \qquad \qquad \textit{direct proportional variation} \\\\ \textit{\underline{y} varies directly with \underline{x}}\qquad \qquad y=kx\impliedby \begin{array}{llll} k=constant\ of\\ \qquad variation \end{array} \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ \textit{we also know that}~~ \begin{cases} y=3\\ x=2 \end{cases}\implies 3=k2\implies \cfrac{3}{2}=k \\\\\\ therefore\qquad \boxed{y=\cfrac{3}{2}x} \\\\\\ \textit{when x = 1, what is \underline{y}?}\qquad y=\cfrac{3}{2}(1)\implies y=\cfrac{3}{2}[/tex]

Show how you could set up and find the exact value of cos(5π/4) in two different ways.

Answers

note that 5π /4 is in the third quadrant where the cos is negative

the related acute angle to 5π /4 is π/4, thus

cos( 5π /4 ) = - cos (π/4 ) = - √2/2

We can also evaluate using the addition formula for cosine

• cos (x + y ) = cosxcosy - sinxsiny

note that 5π /4 = (π + π/4 )

cos(5π /4 ) = cos (π + π/4 )

= cos(π)cos(π/4) - sin(π)sin(π/4)

= - 1 √2/2 - 0 = - √2/2


If f is a polynomial function and xminus−5 is a factor of​ f, then ​f(5)equals=​_______.

Answers

if (x - 5 ) is a factor of f(x ) then x = 5 is a root of f(x) and f(5) = 0


Answer:

[tex]f(5) = 0[/tex]

Step-by-step explanation:

A function [tex]f[/tex] can be simplified by it's roots.

For example, a second order function expressed by the following equation:

[tex]ax^{2} + bx + c, a\neq0.[/tex]

Can be expressed in function of it's roots [tex]x_{1}, x_{2}[/tex] such that [tex]ax^{2} + bx + c = (x - x_{1})*(x - x_{2})[/tex].

Is [tex]x-5[/tex] is a factor of f, this means that f can be expressed in function of [tex]x - 5[/tex], that is, x = 5 is a root of the equation.

This means that:

[tex]f(5) = 0[/tex]

Use substitution to solve the linear system of equations
x = 4.
-y = 1/2x

(4, -2)

(-2, 4)

(4, 2)

(2, -4)

Answers

solution = (4, - 2 )

substitute x = 4 into - y = [tex]\frac{1}{2}[/tex] x

- y = [tex]\frac{1}{2}[/tex] × 4 = 2 ( multiply both sides by - 1 )

y = - 2

solution is ( 4, - 2 )


Answer:

I think it is (4,-2)

1/2divide by 5 =1 blank of 1/2

Answers

Answer:

i am pretty sure that it is .2,

Step-by-step explanation:

first, you would do .5 divided by 5 which is 0.1. Then you would do 0.1 divided by 0.5 and you would get 0.2


Write a two point slope equations for the line passing through the points 6,5 and 3,1

Answers

The 2-point form of the equation of a line can be written as ...

... y = (y2-y1)/(x2-x1)·(x -x1) +y1

For your points, this is ...

... y = (1-5)/(3-6)·(x -6) +5

... y = (4/3)(x -6) +5

It can also be written as

... y -5 = (4/3)(x -6)

Answer: The required equation is y= 4x/3 - 3

Step-by-step explanation:

Given points (6,5) and (3,1)

Two point slope equation is  given as

[tex]y - y1 = \frac{y2-y1}{x2-x1}(x-x1)[/tex]

where (x1, y1) and (x2,y2) are the points respectively

∴ [tex]y-5 =\frac{1-5}{3-6}(x-6)[/tex]

[tex]y-5 =\frac{-4}{-3} (x- 6)[/tex]

[tex]y -5 =\frac{4}{3} (x-6)[/tex]

[tex]y - 5 =\frac{4}{3}x - 8[/tex]

[tex]y = 5 +\frac{4}{3} x - 8[/tex]

[tex]y = \frac{4}{3}x -3[/tex]

It can also be written as

[tex]y -5 =\frac{4}{3}(x -6)[/tex]

The solution to w/-7=-21 is 3 true or false

Answers

false , w = 147

multiply both sides by - 7 to eliminate the fraction

w = - 7 × - 21 = 147


Final answer:

The solution to the equation w/-7=-21 is not 3 but 147. Therefore, the original statement is false.

Explanation:

The equation in question is w/-7 = -21. To solve this equation, we multiply both sides by -7.

When we do this, the equation simplifies to w = -(-21)*7. As -(-21) turns to 21, and 21*7 is equal to 147, we find that the solution to the equation w/-7=-21 is w=147, and not w=3.

Therefore, the statement 'The solution to w/-7=-21 is 3' is false.

Learn more about Equation Solution here:

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X(x+3)-x=5 is a quadratic equation?
True
False

Answers

The given equation can be simplified to ...

... x² +2x = 5

This is a quadratic equation. The highest-degree term has degree 2. (TRUE)

Ruben said that 96.52 ÷ 12.7 equals 7.6.

Is Ruben's answer reasonable?


A.
No, Ruben's answer should be closer to 0.8.

B.
No, Ruben's answer should be closer to 80.

C.
No, Ruben's answer should be closer to 800.

D.
Yes, Ruben's answer is reasonable.

Answers

D. yes, Rubens answer is reasonable.
Final answer:

By rounding to the nearest whole numbers and estimating, it is confirmed that Ruben's answer of 96.52 ÷ 12.7 equals 7.6 is indeed reasonable.

Explanation:

To assess if Ruben's answer that 96.52 ÷ 12.7 equals 7.6 is reasonable, let's consider the magnitude of the numbers involved. Firstly, we can simplify our estimation by rounding the numbers to the nearest whole digits, which gives us approximately 97 ÷ 13. By using division, we see that 13 goes into 97 about 7 times with some remainder, since 13 x 7 is 91, which is close to 97.

Now, 7.6 is indeed close to our estimation, so we can determine that Ruben's answer is within a reasonable range. Thus, the correct response to whether Ruben's calculation is reasonable would be:

D. Yes, Ruben's answer is reasonable.

If f(x) = 5x - 2 and g(x) = 2x + 1, find (f - g)(x)

Answers


[tex](5x - 2) - (2x + 1) \\ 5x - 2 - 2x - 1 \\ 3x - 3[/tex]

(5x - 2 - g(x))(x)

(5x - 2 -(2x + 1)

(5x - 2 - (2x + 1) : 3x - 3

= 3x - 3

Scientific skills exercise: interpreting a scatter plot with two sets of data which variable is the independent variable--the variable that was controlled by the researchers? Is the independent variable on the x-axis or the y-axis?

Answers

If graphed correctly the x-axis will always have the independent variables
Final answer:

In a scatter plot with two sets of data, the independent variable is the variable that was controlled by the researchers and is represented on the x-axis.

Explanation:

In a scatter plot with two sets of data, the independent variable is the variable that was controlled by the researchers. The independent variable is typically represented on the x-axis of a scatter plot. It is the variable that is manipulated or changed to observe its effect on the dependent variable, which is plotted on the y-axis.

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For the following system of inequalities, which point lies in the solution set?

4x + 2y > 12
x − y > 5

Select one:
A. (1,1)
B. (8,4)
C. (3,9)
D. (9,1)

Answers

D

Substitute the coordinates of the given points into the inequalities and if both are true then the point is a solution to the system.

A(1, 1 ) : 4 + 2 = 6 and 1 - 1 = 0 not a solution

B(8, 4 ) : 32 + 8 = 40 and 8 - 4  = - 4 not a solution

C(3, 9 ) : 12 + 18 = 30 and 3 - 9 = - 6 not a solution

D(9, 1 ) : 36 + 2 = 38 and 9 - 1 = 8 is a solution

the point (9, 1 ) is the only point that makes both inequalities true


Answer this fast 50 POINTS

Answers

the answer would be 103 students

It will be 103 students

9y + 3 > 4y - 7

thats it

Answers

Pretend the greater than less sign is an equal sign

9y - 4y > -7 -3
5y > -10


When you divide both sides by a negative, the sign flips but here the sign doesn’t flip because we don’t need to divid by a negative

y>-2

Can someone pls help me with this?

Answers

The naming of similar triangles has corresponding vertices in the same order in the name. That means segment QS corresponds to segment AC. We note that QS = 6 cm is 1/10 the length of AC = 60 cm.

Side AB is given as 50 cm, so the corresponding side QR will be 1/10 that value.

... QR = 5 cm

Select all the proper fractions
5/3
6/7
12/17
9/5
11/4
6/25

Answers

6/7 and 12/17 all the other have to be reduced

These are the proper fractions

6/7

12/17

6/25

These are improper fraction

5/3

9/5

11/4

choose the best response to explain why 3 (x+12)=3 (x+5)

Answers

This equation is wrong.

3(x + 12) does not, and never will, equal 3(x + 5)

We can solve the equation to verify.

3(x + 12) = 3(x + 5)

Distributive property.

3x + 36 = 3x + 15

Subtract 15 from both sides.

3x + 21 = 3x

Cancel like terms.

21 = 0 × this is incorrect.

Mila reads at a rate of 2 paragraphs per minute. After reading for 3 minutes, she had read a total of 6 paragraphs. This situation can be represented with a linear equation written in point-slope form, where x represents the number of minutes and y represents the number of paragraphs. Use this information to complete each statement about the linear equation.

Answers

Mila reads at a rate of 2 paragraphs per minute. After reading for 3 minutes, she had read a total of 6 paragraphs.

This situation can be represented with a linear equation written in point-slope form,  

Let 'x' represents the number of minutes and,

y represents the number of paragraphs.  

In one minute Mila reads 2 paragraphs .

So, y=2x

Let x=1 then y=2

x=2 then y =4

Here slope of equation is 2

Let( x1, y1) and (x2,y2) be the two point the equation y=2x the ,

we can write, (y2 - y1) = m(x2 - x1)

or (y2 - y1) = 2(x2 - x1)


Answer:

(3,6)

Step-by-step explanation:

Given that Mila reads at a rate of 2 paragraphs per minute. After reading for 3 minutes, she had read a total of 6 paragraphs.

This situation can be represented with a linear equation written in slope-intercept form,  as

[tex]y=2x[/tex]

where 'x' represents the number of minutes and,

y represents the number of paragraphs.  

Since y intercept is 0 i.e. 0 paras in 0 minutes we have the equation as

[tex]y=2x[/tex]

Since no of minutes or paragraphs cannot take negative values this line is defined only in the I quadrant where both x and y are positive

Out of the points given as follows:

(3,6) (2,3) (-3,6) or (-2,6) ,

we can remove last two since they have negative x which is impossible.

Consider  (3,6) (2,3)

Out of these only I point  (3,6) satisfies  [tex]y=2x[/tex] and second point   (2,3) does not satisfy

[tex]y=2x[/tex]

Hence answer is (3,6)






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