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2 years ago

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Choose the scatter plot that shows a negative correlation.

2 answers:

Alenkinab [10]2 years ago

4 0

Negative correlation between two variables means when x is increasing but y is decreasing or vice versa.

First graph of suffered animals and children shows a positive slope which means if age of child increasing then numbers of suffered animal is also increasing.So, the first graph show a positive correclation.

Second graph of survey of adults doesn't represnt any distinct relationship as the data scattered randomly everywhere in the graph. So, it's showsa very week correlation.

Third graph of speed and MPG shows a negative slope as speed is increasing then MPG is decreasing. So, the third graph (speed and MPG) shows a negative correlation.

tangare [24]2 years ago

4 0

Answer:

da pink one

Step-by-step explanation:

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For the function f(x) = 5x - 7 answer the following questions:

Elis [28]

Answer:

See below

Step-by-step explanation:

<h3>Given function </h3>

f(x) = 5x - 7

<u>Another notation for same function is</u>

y = 5x - 7, where 5 is the slope and -7 is the y-intercept

<h3>Questions </h3>

<u>1. Is the function increasing or decreasing? </u>

Increasing as x has positive slope

<u>2. What is the y-intercept? </u>

y- intercept is -7

<u>3. What is the slope? </u>

The slope is 5

<u>4. What is f(-2)? </u>

f(-2) = 5(-2) - 7 = - 10 - 7 = -17

<u>5. If f(x) = 0, what is x?</u>

f(x) = 0
0 = 5x - 7
5x = 7
x = 7/5
x = 1.4

8 0

3 years ago

Read 2 more answers

9x+5y=8<br> 3x–y=4<br> what is the y-value of the solution to the system?

CaHeK987 [17]

Answer:

y=7.51

Step-by-step explanation:

First, you have to simplify one of the equations down

3x-y=4

y=-4+3x

Second, you insert the value of y into the other equation and then solve for x

9x+5(-4+3x)=8

9x-20+15x=8

24x=28

x=1.17

Last, insert the value of x into the original equation and then solve for y

y=4+3(1.17)

y=7.51

3 0

3 years ago

Calculate the Slope<br> (1,6)(-7,2)<br><br> A 1/2<br> B 2 <br> C-2<br> D -1/2<br><br> FOR MY QUIZ!!!

Kaylis [27]

Answer:

-1

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Find the solution of the differential equation that satisfies the given initial condition. dy/dx=x/y , y(0)=-1

Charra [1.4K]

Separating variables, we have

$\dfrac{dy}{dx} = \dfrac xy \implies y\,dy = x\,dx$

Integrate both sides.

$\displaystyle \int y\,dy = \int x\,dx$

$\dfrac12 y^2 = \dfrac12 x^2 + C$

Given that $y(0)=-1$ , we find

$\dfrac12 (-1)^2 = \dfrac12 0^2 + C \implies C = \dfrac12$

Then the particular solution is

$\dfrac12 y^2 = \dfrac12 x^2 + \dfrac12$

$y^2 = x^2 + 1$

$y = \pm\sqrt{x^2 + 1}$

and because $y(0)=-1$ , we take the negative solution to accommodate this initial value.

$\boxed{y(x) = -\sqrt{x^2+1}}$

7 0

2 years ago

katherine leans a 30-foot ladder against a wall so that it forms an angle of 72° with the ground how high up the wall does the l

juin [17]

Answer:

tan 72° = h/30

h = 30 tan 72°

h = 92.33

The ladder reaches a height of 92.33 ft.

8 0

1 year ago