Write the interval as an inequality involving x, and illustrate the inequality using the real number line.[-2, ?)
A. x ? -2
B. x ? -2
C. x > -2
D. x > -2
Answer: B
Mathematics
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Simplify by factoring. Assume no radicands were formed by raising negative numbers to even powers.
A. 5xy
B. 5xy2
C. 5x2
D. 5x
Mathematics
Evaluate the integral.
dx
A. - 
cot2 x - 
ln 
+ C
B. 
cot4 x sec x + C
C. 
cot4 x + C
D. 
cot2 x + ln 
+ C
Mathematics
Perform the indicated operation(s), whenever possible.Let A = [1 4] and B = 
. Find A + B.
A. 
B.
[0 12]
C. 
D. not defined
Mathematics
Find the volume of the specified solid. Use 3.14 as the approximate value of ?, and round your answer to the nearest whole number.A triangular pyramid with base area 20 ft2 and height 4 ft
A. 40 ft3 B. 27 ft3 C. 80 ft3 D. 25 ft3
Mathematics