Sandra calculated the height of a cylinder that has a volume of 576(pie) cubic centimeters and a radius of 8 centimeters. her work is shown below.

v=bh
step 1: 576(pie)= (pie)8^2h
step 2: 576(pie) = 64(pie)h
step 3: 576(pie)/64(pie) = 64(pie)/64(pie)h
step 4: h=9(pie) cm

what error did sandra make when calculating the height of the cylinder?
a. in step 1, she substituted into the volume formula incorrectly.
b. in step 2, she calculated 8^2 incorrectly. it should be 16 rather than 64.
c. in step 4, the (pie) should have canceled, making the correct answer 9 cm.
d. sandra calculated the height of the cylinder correctly.

See below.

Step-by-step explanation:

Step 3 should be: 576pi / 64pi = 64pi h / 64pi

Step 4:  9 = h.

I would say C and D.

C. In step 4, the (pie) should have canceled, making the correct answer 9 cm.

Step-by-step explanation:

We know that,

The volume of a cylinder is,

Where r is the radius of the cylinder,

h be the height of the cylinder,

Given,

r = 8 cm,

So, for finding the height of the cylinder the steps are as follows,

Step 1 :

Step 2 :

Step 3 :

Step 4 :

Thus, it is clear that she had her mistake in 4th step,

She should cancel out .

Option C is correct.

answer is 67%

step-by-step explanation:

b

step-by-step explanation:

a difference is the result of subtraction. while each of these expressions has subtraction in it, a difference will be the result when subtraction is the last operation applied in the order of operations for the expression. this means subtraction must be outside of the parenthesis. only b has this.