2 years ago

The geometic mean of 4 and 21

Mathematics

1 answer:

-Dominant- [34]2 years ago

4 0

Answer:

12.5

Step-by-step explanation:

4+21=25

25/2=12.5

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The sixth grade is raising money for the local animal shelter. So far they have raised $320, which is 40% of their goal. How muc

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They hope to raise 800 dollars.

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If measure of angle 1 = 2x+6 and measure of angle 2 = 8x+4 where angles 1 and 2 are supplementary, then how much is the actual m

nlexa [21]

Answer:

The actual measure of ∠1 = 40°

Step-by-step explanation:

We are given: ∠1 = 2x+6 and ∠2 = 8x+4

and both angles are supplementary. we need to find the actual measure of ∠1

Supplementary angles: If the angles are supplementary their sum is equal to 180°

In our case ∠1 +∠2 = 180°

2x+6+8x+4=180

Solving the equation to find x, then we can find the actual measure of ∠1

$2x+6+8x+4=180\\10x+10=180\\10x=180-10\\10x=170\\x=170/10\\x=17$

So, value of x = 17

Now, finding actual measure of ∠1 by putting x=17 in equation 2x+6

$\angle1=2(17)+6\\\angle1=34+6\\\angle1=40$

So, the actual measure of ∠1 = 40°

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2 years ago

40% of the students in a school are boys. lf there are 240 boys, how many student are therein the school?

Stells [14]

40/100 = 96/240

Hope this helps

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K is between J and M. L is between K and M. M is between K and N. If JN = 30, KM = 8, and JK = KL = LM, what is MJ?

erica [24]

Answer:

Step-by-step explanation:

MJ IS 18 RHIS IS YOUR CORRECT ANSWER

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Which best describes the error in finding the surface area of the prism?

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To find the surface area of a prism (or any other geometric solid) we open the solid like a carton box and flatten it out to find all included geometric forms. To find the volume of a prism (it doesn't matter if it is rectangular or triangular) we multiply the area of the base, called the base area B, by the height h.

This info should help you.

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