7.6(6.6) And 8.1(7.1) Solving Radical Equations And Exponential Graphs
16 Questions
| Attempts: 272
; &nbs p; &nb sp; &n bsp; & nbsp;
Questions and Answers
- 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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