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3 years ago

Make a equation for the scatter plot line

Mathematics

1 answer:

aalyn [17]3 years ago

5 0

Answer:

y = -7.2x + 540

Step-by-step explanation:

to find the slope I used the x-and-y intercepts: (0, 540) and (75, 0)

slope = 540/-75 or -7.2

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Which problem could be solved by evaluating the expression 7 x (-3)?

Tasya [4]

Answer:

The answer is -21

Step-by-step explanation:

To find the answer just multiply 7 by 3 and that's 21, so just add a negative sign to 21 and you get -21. I hope this helps :) please give me brainliest :)

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3 years ago

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What the answer plz help it dividing

ElenaW [278]

These are the steps on how to answer your problem

$\frac{9y^{3} - 9y^{2}}{y} \\ \frac{9y^3}{y} - \frac{9y^2}{y} \\ 9y^2 - 9y$

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4 years ago

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Juliette [100K]

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3 years ago

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Rewrite the expression with parentheses to equal the given value of 9+5÷5+2 with the value of 2

Mariana [72]

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(9+5)/(5+2)

4 0

3 years ago

Consider the probability distribution shown below. x 0 1 2 P(x) 0.15 0.80 0.05 Compute the expected value of the distribution. (

larisa [96]

Answer:

Expected value =0.9

Standard deviation = 0.4359

Step-by-step explanation:

Let's use the formula to find expected value or mean.

Expected value =Σ x *P(x)

x 0 1 2

P(x) ) .15 .8 .05

So, expected value = (0)(0.15) +1(0.8)+2(0.05)

= 0 +0.8 +0.1

=0.9

Expected value =0.9

Now, let's find standard deviation

x $(x- E(x))^{2}$ $(x-E(x))^{2} *p(x)$

0 $(0-0.9)^{2}$ $(0-0.9)^{2} *0.15$ =0.1215

1 $(1-0.9)^{2}$ $(1-0.9)^{2} *0.8$ =0.008

2 $(2-0.9)^{2}$ $(2-0.9)^{2} *0.05$ =0.0605

Now, add the last column together and then take square root to find standard deviation.

Standard deviation of the distribution = $\sqrt{0.1215+0.008+0.0605)}$

Simplify it, so standard deviation =0.4358898...

Round the answer to nearest four decimal places

Standard deviation = 0.4359

7 0

3 years ago