Equations and Roots

Multiple Choice

What is the first step to solve this equation:
11 - 3x = 44

• Add 3 to both sides
• Subtract 11 from both sides
• Add 11 to both sides
• Divide 3 on both sides.

Multiple Choice

Solve for w.

-6w + 1 = -11

• 2

• 1.2

• 12

• -2

Multiple Choice

Solve for t.

-4 = 2t - 2

• -1

• 1

• 4

• 0

Multiple Choice

Solve for s.

9 = 2s + 1

• 4

• -4

• 3.5

• 5

Multiple Choice

The inverse operation for SQUARING a number is finding the CUBE root?

• true

• false

Multiple Choice

$$9^2=18$$  True or false?

• True

• False

Multiple Choice

$$3_{\sqrt{8}}$$    (cube root of 8) 

• 2

• $$\pm2$$  

• -2

• None of the above 

Multiple Choice

$$3_{\sqrt{-1}}$$  (cube root of -1)

• $$\pm1$$  

• 1

• -1

• none of the above (imaginary number)

Multiple Choice

$$\sqrt{\left(\frac{16}{81}\right)}\ \ =\ ?$$  

• $$\frac{8}{27}$$  

• $$\frac{8}{9}$$  

• $$\frac{4}{9}$$  

• $$\frac{4}{3}$$  

Multiple Choice

$$\sqrt{36}=$$  

• 4

• 9

• 6

• 12

Multiple Choice

√40 is between

• 8 and 9
• 7 and 8
• 5 and 6
• 6 and 7

Multiple Choice

The area of a square painting is 81 cm².  What is the side length of the painting?

• 40.5 cm
• 162 cm
• 6,561 cm
• 9 cm

Multiple Choice

A cube with side length s has a volume of 64 cubic units. What is the length of one side?

• 4

• 8

• 16

• 32

Multiple Choice

Solve: $$x^2=144$$  

• $$x=\pm12$$  

• $$x=12$$  

• $$x=\pm72$$  

• $$x=\pm20,736$$  

Multiple Choice

Solve:

r³=64

• 8

• $$\pm8$$  

• 4

• $$\pm4$$  

Multiple Choice

Solve:

p²=256

• $$\pm16$$  

• 16

• $$\pm72$$  

• 72

Multiple Choice

Solve:

y²=16

• 4

• 8

• $$\pm$$  4

• $$\pm8$$  

Multiple Choice

Solve:

a³=1331

• 11

• 13

• $$\pm13$$  

• $$\pm11$$  

Multiple Choice

Solve:

b²=625

• 15

• 25

• $$\pm15$$  

• $$\pm25$$