Graph the ellipse and locate the foci.16x2 + 9y2 = 144
A. foci at (
, 0) and (-
, 0)
B. foci at (4, 0) and (-4, 0)
C. foci at (0, 
) and (0, -
)
D. foci at (5, 0) and (-5, 0)
Answer: C
Mathematics
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Use an inverse matrix to find the solution to the system.
A. x = 1, y = 5, z = 1 B. x = 8, y = -1, z = 5 C. x = 7, y = 1, z = 5 D. x = 7, y = -1, z = -5
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Find the requested function value.f(x) = -7x - 2, g(x) = -5x2 - 9x + 1Find (g ? f)(5).
A. 481 B. 519 C. 1181 D. -6511
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Solve the equation using the multiplication property of equality.
= 14
A. {7} B. {28} C. {16} D. {15}
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Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.cos ? = 
, 
? ? ? 2?Find cos 
.
A. 
B. 
C. - 
D. - 
Mathematics