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Serga [27]
3 years ago
7

Scores on a Algebra test have average of 80 with standard deviation of 5. What is the z-score for a student who earned a 82 on t

he test? Round your answer to the nearest thousandth.
Mathematics
1 answer:
Dafna11 [192]3 years ago
3 0

Answer:

16

Step-by-step explanation:

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If a cube has a<br> volume of 8 cm<br> what is it's side<br> length?
lana [24]
Side length: 2 cm.

Volume of a cube:
V=a^3
(where V is volume, and a is side length)

If v=8, the formula would now be 8=a^3

Take the cube root of both sides

a=2.
5 0
4 years ago
Is 8x-2y=2 a direct or inverse variation
sp2606 [1]

Answer:

Neither, why... for it to be direct or inverse variation, the model has to fit either y=k/x or y=kx, it may not have a y-intercept at all if it is inverse variation and it must have a y-intercept of 0 for it to be direct variation.

Step-by-step explanation:

The statement y=2 is quite specific. Because k is positive, y increases as x increases. So as x increases by 1, y increases by 1.5. Inverse Variation: Because k is positive, y decreases as x increases.  yx is a constant number -8. The constant of variation, k , is 23 . Inverse Variation

An inverse variation can be represented by the equation xy=k or y=kx .

That is, y varies inversely as x if there is some nonzero constant k such that, xy=k or y=kx where x≠0,y≠0 .

Suppose y varies inversely as x such that xy=3 or y=3x . That graph of this equation shown.

7 0
3 years ago
Plsss hurrrry math test
Bezzdna [24]

Answer:

I believe its a trapezoid. Sorry if I'm wrong.

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Find the value of x explain how you got your answer ​
aliya0001 [1]

Answer:

step 1: x+50+4x=90

the angle of a right-angled triangle is 90 degrees, therefore if we add everything together ,we could work out what x is.

step 2: x+50+4x=90

                  x+4x=50

                      5x=50

                        x=10

then you solve the equation, x is 10

4 0
3 years ago
6) Which is the best deal?<br> 3.45 lbs for $3.58<br> $10.23 for 10.43 lbs
kirill115 [55]

Answer:

3.45 lbs for $3.58 because your getting 3 pounds of the item for 3 dollars.

Step-by-step explanation:

3.45 lbs for $ 3.58 is cheaper than 10.43 lbs for 10.23

5 0
3 years ago
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