PLEASE HELPPPP!! :( i'm confused on it

Question

asked May 6, 2022 103k views

2 Answers

Walter Tross · Answer 1 · 2022-05-07T17:19:51+0000

Answer:

1. 4

2. -3

3. 6

4. 9

5. 0.9

6. 0.7

7. 8

8. 17i

Explanation:

Lesson 8 covers square roots and cube roots.

square root= a square root of a number x is a number y such that y² = x

example: 4*4=16

cube root= a cube root of a number x is a number y such that y³ = x

example: 3*3*3=27

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Number 1

√(16) =?

4^2=4x4=16

√(16)=4

Simplify the radical by breaking the radicand up into a product of known factors, assuming positive real numbers.

Number 4

$\sqrt[3]{729}$ =?

9^3=9*9*9=729

$\sqrt[3]{729}=9$

Simplify the radical by breaking the radicand up into a product of known factors, assuming real numbers.

Number 8

√(-289)

17^2=17*17=289

The i in the answer means that 1 of the 17's is negative and the other is positive.