Solve the equation.x(4x + 22) = 12
A. 2, 6
B. 0, - 
C. 
, -6
D. 0, 
Answer: C
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Solve the problem.What happens if you set B = -2? in the angle sum formulas for the sine and cosine functions? Do the results agree with something you already know?
What will be an ideal response?
Perform the indicated operations. Express answers in scientific notation.
-5
A. 3.13 × 1078 B. 3.13 × 10-18 C. 2.00 × 1011 D. 2.00 × 10-21
Solve.The ratio of the weight of an object on Earth to the weight of the same object on Pluto is 100 to 3. If a buffalo weighs 3725 pounds on Earth, find the buffalo's weight on Pluto. (Round to the nearest pound.)
A. 8 lb B. 112 lb C. 1,117,500 lb D. 11,175 lb
Use a double-angle formula to rewrite the expression. ? 10 cos2 x - 5 ?
A. 5 cos x B. ?cos 5x C. ?10 cos 2x D. ?10 cos x E. ?5 cos 2x