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 cos A when a = 3 and b = 7.
A. 
B. 
C. 
D. 
Answer: B
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Use the given transformation to evaluate the integral.
Rwhere R is the interior of the ellipsoid 
A. 
?
B. 28?
C. 
?
D. 
?
The table shows the number of votes received by each candidate in an election along with the amount spent by the candidate on advertising. Use the table to answer the question.. CandidateNumber of VotesAmount Spent on Advertising ($) Jose Gonzales 57,209 59,104 Angela Wong 67,108 59,024 Sue Miller 67,091 102,376 Tyler Johnson 41,036 66,514 Sandra Ouye 41,009 72,607How much was spent on advertising by Tyler Johnson?
A. $66,154 B. $41,036 C. $66,514 D. $72,607
Write a mathematical expression for the word phrase.3 subtracted from 9, decreased by 12
A. (9 + 3) - 12 B. (3 - 9) - 12 C. 12 - (9 - 3) D. (9 - 3) - 12
For the given function f(x), find f-1(x).f(x) = 
x + 9
A. f-1(x) = 
x - 9
B. f-1(x) = 3x + 27
C. f-1(x) = 
x + 3
D. f-1(x) = 3x - 27