Simplify the rational expression. Find all numbers that must be excluded from the domain of the simplified rational expression.
A. Already in lowest terms
B. -x, x ? 7
C. 1, x ? 7
D. -1, x ? 7
Answer: D
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Solve the problem.Write an iterated triple integral in the order 
for the volume of the rectangular solid in the first octant bounded by the planes 
, 
, and 
.
A. 
B. 
C. 
D. 
Solve the application. Write an expression to describe the situation and simplify the expression for the final answer.The temperature at the South pole was -9° at 8 am. At 3 pm, it was 32°. By how many degrees did the temperature rise?
A. -9 - (32) = 41; The temperature dropped 41 degrees. B. -9 - (32) = -41; The temperature dropped -41 degrees. C. -9 - (32) = 23; The temperature dropped 23 degrees. D. -9 - (32) = -23; The temperature dropped -23 degrees.
Name the highlighted angle using the three-letter form of identification.
A. ?HTE or ?ETH B. ?KTE or ?ETK C. ?CTE or ?ETC D. ?T
Multiply.(w - 12)2
A. 144w2 - 24w + 144 B. w2 - 24w + 144 C. w + 144 D. w2 + 144