Evaluate the expression when x is 
. Use exact values.
?
7 cos 3x
?
A. 0
B. 7
C. 3
D. 0
E. -3
Answer: A
Mathematics
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Construct a truth table for the statement.~(p ? q) ? ~(p ? q)
A. 
| T | T | T |
F T T
F F T
B.
| T | T | F |
F T T
F F T
C.
| T | T | F |
F T F
F F T
D.
| T | T | T |
F T F
F F T
Mathematics
Write a proportion that can be used to solve the problem. Then solve the equation to obtain the answer.A bag of fertilizer covers 1500 square feet of lawn. Find how many bags of fertilizer should be purchased to cover a rectangular lawn 430 feet by 70 feet.
A. 20 bags B. 2006 bags C. 201 bags D. 21 bags
Mathematics
Find functions f and g so that f ? g = H.H(x) = (5 - 2x3)2
A. f(x) = x3 ; g(x) = (5 - 2x)2 B. f(x) = (5 - 2x)3 ; g(x) = x2 C. f(x) = 5 - 2x3 ; g(x) = x2 D. f(x) = x2 ; g(x) = 5 - 2x3
Mathematics
Find the vertices of the hyperbola with the given equation.64x2 = 81y2 + 5184
A. (0, -8), (0, 8) B. (-9, 0), (9, 0) C. (0, -9), (0, 9) D. (-8, 0), (8, 0)
Mathematics