Simplify the expression. Assume that all variables are positive when they appear.
A. -6x2
B. 14x2
C. 36x2
D. not a real number
Answer: A
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Evaluate the integral using the given substitution.
dt, u = 2 - sin 
A. 
3sin 
+ C
B. 
3 + C
C. 5
3 + C
D. - 
3 + C
Find Pk+1 from the given statement Pk.Pk: 3k > 4k
A. Pk+1: 3k + 1 > 4k + 1 B. Pk+1: 3k+1 > 4k + 1 C. Pk+1: 3k + 1 > 4(k + 1) D. Pk+1: 3k+1 > 4(k + 1)
Two sides of a right triangle ABC (C is the right angle) are given. Find the indicated trigonometric function of the given angle. Give exact answers with rational denominators.Find tan B when a = 4 and b = 7.
A. 
B. 
C. 
D. 
Solve the problem.Stephanie receives a salary of $650 per month plus a commission of 5.5% on the first $3,000 of sales, and 7% of all sales over $3,000. Find Stephanie's gross pay for the month if her sales were $10,870.
A. $2850.90 B. $715.90 C. $1365.90 D. $1575.90