Question

Please help me and check my answers?!

Answer 1

1. What is the simplified form of √ 40
a. 4√ 35
b. 10√ 14
c. 2√ 70
d. 2√ 35

2. What is the simplfied form of √48n^9
a. 4n^3√ 3
b. 4n^4√ 3n
c. 3n√ 4n^8
d. 4√ 3n^9

3. What is the simplified form of 3√ 5c*√ 15c^3
a. 15c^2√3 <---
b. 6c^2√5
c. 5c^2√3
d. 12c^4√5

4. Which radical expression is in simplified form?
a. 11y/ √3
b. √6/5y <---
c. √17/√4
d. √ 25/ 81 (The square root is covering both with one.)

5. A garener is mowing a 20 by 40 rectangular pasture using a diaganol pattern. He mows one corner of the pasture to the corner diagonally opposite. What is the length of this pass with the mower? Give your answer in simplified form.
a. 10√20
b. 20√2
c.400√5
d. 20√5 <---

Answer 2

For number 2 i got D. i dont have number 1 though.