Evaluate the indicated trigonometric function of the acute angle ?.If ? is an acute angle of a right triangle and if csc ? = 
, then find the value of cos ?.
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Determine an appropriate viewing window for the given function and use it to display its graph.f(x) = -0.6x6 - x5 + 6x4 - 5x3 - 5x2 + x - 3
A. 
B. 
C. 
D. 
Mathematics
Find the standard-form equation of the ellipse centered at the origin and satisfying the given conditions.An ellipse having a focus at (
, 0) and directrix x = 
.
A. 
+ y2 = 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Mathematics
Decide whether the statement is true or false.log712 - log127 = 0
A. True B. False
Mathematics
Solve the problem.The rate that a moving company charges depends on the distance, x, in miles that the articles are moved. Let C(x) represent the cost to perform a move of x miles. One firm charges as follows:
Find C(543).
A. $1879 B. $2272 C. $1486 D. Undefined
Mathematics