Use the pics to answer the last questions.

Answers

1st attachment:    3.11

2nd attachment: 6.71

Reflection

Question 1:

By looking for the closest numbers with a perfect square.

By using a calculator and giving the answer to more decimal places.

No. The is no perfect number you can square to get 45.

Question 2

By looking for the closest numbers with a perfect square root.

By using a calculator and giving the answer to more decimal places.

No. The is no perfect number you can cube to get 30.

Explanation

1st attachment

The volume of the cube = (length)³

                            30 = l³

                             l = ∛30

                                  = 3.107232506.

The answer to the nearest hundredth = 3.11

3.11 × 3.11 × 3.11 = 30.080231

2nd attachment

Area of a square = (length)²

                       45 = l²

                          l = √45

                           l = 6.708203933

Answer to the nearest hundredth = 6.71

6.71 × 6.71 = 45.0241

3rd attachment

Reflection:

Question 1

45 is not a perfect square. The closest numbers to 45 with a perfect square are 36 and 49

The square root of 36 is 6 and the square root of 49 is 7. So the way of getting the whole number is by looking for the closest numbers with a perfect square.

By using a calculator and giving the answer to more decimal places.

No. The is no perfect number you can square to get 45.

4th attachment

Question 2

30 is not a perfect cube. The closest numbers with a perfect cube are 27.

∛27 = 3

The ∛30 should be 3 whole number and some decimal places.

∛30 = 3.107232506.

So the way of getting the whole number for a cube root of 30 is by looking for the closest numbers with a perfect square root.

By using a calculator and giving the answer to more decimal places.

No. The is no perfect number you can cube to get 30.

took the test it's 94