Solve the equation for x if 
.
?
cos x- cos 2x = 0
?
A. 
, 
, 
B. 
, 
, 
C. 
, 
, 
D. 0, 
, 
E. 
, 
, 
Answer: D
You might also like to view...
Solve the application and answer with a complete sentence.Students at Maple School earned $940 selling candles. They want to accumulate $2000 for a club trip. What percent of their goal has been reached?
A. 2% of their goal has been reached. B. 20% of their goal has been reached. C. 47% of their goal has been reached. D. 0.47% of their goal has been reached.
Divide.-82.4 ÷ 5
A. 16.98 B. -16.98 C. 16.48 D. -16.48
Find the extreme values of the function subject to the given constraint.
A. Maximum: 400 at 
minimum: -400 at 
B. Maximum: 400 at 
and 
minimum: -400 at 
and 
C. Maximum: 400 at 
and 
minimum: -400 at 
and 
D. Maximum: 400 at 
minimum: 0 at 
Solve the problem.Assume that the volume of the earth is 5 × 1014 cubic meters and the volume of a bacterium is 2.5 × 10-16 cubic meters. If the earth could be filled with bacteria, how many would it contain?
A. 5.0 × 1031 bacteria B. 2.0 × 1030 bacteria C. 5.0 × 10-31 bacteria D. 2.0 × 10-30 bacteria