Pls hurry

question 7(multiple choice worth 1 points)

(03.01 lc)

what is the length of the hypotenuse of a right triangle if each of the two legs is 5 units?

5
square root of 10
25
square root of 50
question 8(multiple choice worth 1 points)

(03.06 lc)

the volume of a cone is 392.5 cubic inches. the height of the cone is 15 inches. what is the radius of the cone, rounded to the nearest inch? (use π = 3.14.)

3
5
13
25

this is the answer for (03.01 LC)

Step-by-step explanation:

You have use the Pythagorean Theorem a^{2} + b^{2} = c^{2}

So this is my work

extra notes

So the c^{2} is cancled by aka \sqrt{c}

the answer for (03.06 LC)  

5

Step-by-step explanation:

In pic

Just look for r after substituting the variables

step-by-step explanation:

no, her answer is not correct.   we square the lengths of all sides and then determine whether the pythagorean theorem holds here:

9² + 15² = 306.   this is not equal to the square of the longest side ( that square being 395.   answer c is correct.