Solve the problem.The gross national product for the United States was 
. Round this amount to the nearest ten-billion.
A. $54,850,000,000,000
B. $54,853,000,000,000
C. $50,000,000,000,000
D. $54,900,000,000,000
Answer: A
Mathematics
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Solve the problem.Evaluate tan-1 
.
A. 0
B. - 
C. Undefined
D. - 
Mathematics
Find the solution to the system of equations by the substitution method.
x + 
y = 5 x - y = -4
A. (2, 8) B. (-3, 8) C. (3, 7) D. (2, 7)
Mathematics
Simplify. Write your answers in the form of a+bi, where a and b are real numbers.(-6 + 2i)2
A. 32 - 24i B. 40 + 24i C. 32 + 24i D. 40 - 24i
Mathematics
Given that f(x) = sin x, g(x) = cos x, and h(x) = tan x, evaluate the given function. The point (x, 
), on the circle 
, also lies on the terminal side of an angle ? in quadrant II. The point 
, on the circle 
, also lies on the terminal side of an angle ? in quadrant III.h(2?)
A. 
B. - 
C. 
D. - 
Mathematics