# 7.6(6.6) And 8.1(7.1) Solving Radical Equations And Exponential Graphs

16 Questions | Total Attempts: 229  Settings  ; &nbs p; &nb sp; &n bsp; & nbsp;

• 1.
Is the given x-value a solution of the equation 4(x-5)^1/2 = 28x=12
• A.

Yes

• B.

No

• 2.
4 x(3/4) = 108
• 3.
X (2/3) + 15 = 24
• A.

27

• B.

No real solutions

• C.

-3

• 4.
Sqrt (2x-1) = sqrt (x+4)
• A.

5

• B.

6

• C.

7

• 5.
sqrt x = 8
• A.

64

• B.

8

• C.

2 sqrt 2

• 6.
x 1/3 +10 = 16
• A.

6

• B.

18

• C.

216

• 7.
(y-9)1/4 +4 = 0
• 8.
(6u-5)1/3 + 2 = -3
• A.

-225

• B.

-125

• C.

-20

• 9.
Sqrt (4x-6) = sqrt x
• A.

10

• B.

2

• C.

8

• 10.
The velocity of a roller coaster is 10 m/s. Find the radius of the roller coaster loop if g=9.8 m/s2. Given v=sqrt(rg) Round to 1 decimal place.
• 11.
X1/2 = 9
• A.

3

• B.

9

• C.

81

• 12.
Correct the error:The error is in the ____ step.
• A.

1st step

• B.

2nd step

• C.

3rd step

• D.

4th step

• 13.
The graph of y=3x approaches the negative x-axis but does not touch it. True or False?
• A.

True

• B.

False

• 14.
What's y when x=0 in y=3x?
• A.

0

• B.

1

• C.

3

• 15.
Nadia owns a chain of restaurants that operated 200 stores in 1999. If the rate of increase is 8% annually, how many stores does she operate in 2007?The first step to solving this question would be:
• A.

Years after 1999 | stores 1999 0 | 200 2000 1 | 8+(200)

• B.

Years after 1999 | stores 1999 0 | 200 2000 1 | (200)x8

• C.

Years after 1999 | stores 1999 0 | 200 2000 1 | 1.08(200)

• 16.
Nadia owns a chain of restaurants that operated 200 stores in 1999. If the rate of increase is 8% annually, how many stores does she operate in 2007?which of the following statements is true?
• A.

If the rate of increase is 8% then I convert it to 1.08 and multiply it to 200 the number of stores

• B.

If the rate of increase is 8% then I convert it to 0.08 and multiply it to 200 the number of stores

• C.

If the rate of increase is 8% then I convert it to 8 and multiply it to 200 the number of stores

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