8th grade Ch 1 L8

Find each square root. (Examples 1–4) 1. -√1.69 = _______

• -1.3

• 1.3

• -1.69

• -0.13

Find each square root. (Examples 1–4) 2. ±√(49/144) = _______

• ±7/12

• ±7/24

• ±1/12

• ±49/12

Find each square root. (Examples 1–4) 3. √–1.44 = _______

• Not a real number (or ±1.2i)

• 1.2

• –1.2

• ±1.44

Solve each equation. Check your solution(s). (Example 5) 4. p² = 36

• ±6

• 6

• -6

• 0

Solve each equation. Check your solution(s). (Example 5) 5. t² = 1/9

• ±1/3

• ±3

• ±9

• ±1/9

Solve each equation. Check your solution(s). (Example 5) 6. 6.25 = r²

• ±2.5

• ±3.5

• ±1.5

• ±6.25

Find each cube root. (Examples 6 and 7) 7. ∛216 = _______

• 6

• 4

• 8

• 5

Find each cube root. (Examples 6 and 7) 8. ∛–125 = _______

• –5

• 5

• –25

• –15

Find each cube root. (Examples 6 and 7) 9. ∛–8 = _______

• –2

• 2

• –4

• 0

A cube-shaped packing box can hold 729 cubic inches of packing material. Solve 729 = s³ to find the length of one side of the box.

• 9

• 6

• 12

• 27