Multiply as indicated. If possible, simplify any square roots that appear in the product.(6
+ 
)(6
- 
)
A. 12x - 7y
B. 12
C. 72x + 12
+ 7y
D. 72x - 7y
Answer: D
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Evaluate the integral by making a substitution and then using a table of integrals.
A. 
+ C
B. 
+ C
C. 
- 
ln(2x + 3) + C
D. 
ln(2x2 + 3x)
State the dimensions of the matrix.
A. 3 × 1 B. 3, -6, -8 C. 1 × 3 D. 3
Solve the problem by using three variables.A basketball fieldhouse seats 15,000. Courtside seats sell for $10, endzone for $7, and balcony for $5. The total revenue from a sell-out is $94,000. If half the courtside and balcony seats and all the endzone seats are sold, the total revenue is $54,000. How many of each type are there?
A. 4000 courtside; 3000 endzone; 8000 balcony B. 3000 courtside; 2000 endzone; 10,000 balcony C. 3000 courtside; 3000 endzone; 8,000 balcony D. 3200 courtside; 1800 endzone; 10,000 balcony
Find f(x) and g(x) such that h(x) = (f ? g)(x).h(x) = 
A. f(x) = 
, g(x) = 8x - 4
B. f(x) = x, g(x) = 8x + 4
C. f(x) = 
, g(x) = 8x + 4
D. f(x) = -
, g(x) = 8x + 4