Evaluate the integral.
x dx
A. x cos-1x + 
+ C
B. x cos-1x - 
+ C
C. x cos-1x - 2
+ C
D. x cos-1x - 
+ C
Answer: D
Mathematics
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Solve the radical equation. Check all proposed solutions.
= 5
A. x = 
B. x = 25
C. x = 
D. x = 5
Mathematics
Use the circle graph to solve the problem. Give your answer as a fraction, decimal, and as a percent.The circle graph below shows the majors for 1200 college students at Blackwood Community College. What portion of the students are majoring in science?
A. 
; 0.33; 33%
B. 
; 0.375; 3.75%
C. 
; 0.375; 37.5%
D. 
; 0.33; 3.3%
Mathematics
Simplify the expression.-3x + 5x
A. -2x B. -8x C. 2x D. 2x2
Mathematics
Factor completely. Check by multiplying the factors.
A. 
B. 
C. 
D. 
E. 
Mathematics