Solve.An earthquake was recorded with a shock wave which was 
times more powerful than the smallest measurable shock wave recordable by a seismograph.What is the magnitude of this earthquake on the Richter scale (rounded to the nearest tenth)? The magnitude on the Richter scale of an earthquake of intensity I is 
A. 9.7
B. 3.2
C. 4.2
D. 0.4
Answer: C
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Evaluate the integral by making a substitution and then using a table of integrals.
A. 
+ ln 
+ C
B. 
- 
ln 
+ C
C. 
- 
ln 
+ C
D. 
+ 
sin-1 
+ C
Completely factor the polynomial or state that the polynomial is prime.4x3 + 12x2 - 40x
A. 4x(x + 2)(x - 5) B. (x - 2)(4x2 + 20) C. (4x2 + 8x)(x - 5) D. 4x(x - 2)(x + 5)
Solve the problem.A bag contains 5 apples and 3 oranges. If you select 4 pieces of fruit without looking, how many ways can you get 4 oranges?
A. 15 B. 8 C. 0 D. 5
Solve the problem.A cab company charges a base rate of $1.50 plus 15 cents per minute. Let y be the cost in dollars of using the cab for x minutes. Find the slope-intercept form of the equation.
A. y = 0.15x + 1.50 B. y = 0.15x - 1.50 C. y = 1.50x - 0.15 D. y = 1.50x + 0.15