Use the given substitution to express the given radical expression as a trigonometric function without radicals. Assume that 0 < ? < ?/2.Let x = 3 tan ? in 
.
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Provide an appropriate response.Find the 10th term of the geometric sequence $1000, $1060, $1123.60, . . . .
A. $10,600 B. $1790.85 C. $1689.48 D. $1593.85
Mathematics
Solve the problem.Brand X copier has improved its copier so that it produces 19% more copies than its old model. If the old model ran 681 copies per hour, how many copies would the new model run? Round your answer to the nearest whole number.
A. 376 copies per hour B. 696 copies per hour C. 810 copies per hour D. 795 copies per hour
Mathematics
Find the specified domain.For f(x) = 2x - 5 and g(x) = 
, what is the domain of f ? g?
A. [-8, ?) B. (-8, 8) C. [0, ?) D. [8, ?)
Mathematics
Solve quadratic equation by factoring.x(x - 2) = 80
A. -8, -10 B. 8, 10 C. -8, 10 D. 8, -10
Mathematics