Question

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

Answer 1

Answer:

1, 4

2,-3

3,6

4,9

5,-0.9

6,7/10

7,-8

8,17

Step-by-step explanation:

Answer 2

Answer:

1. 4

2. -3

3. 6

4. 9

5. 0.9

6. 0.7

7. 8

8. 17i

Step-by-step 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

$\sqrt{16}$ =?

$4^2=4x4=16$

$\sqrt{16}=4$

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

$\sqrt{-289}$

$17^2=17*17=289$

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