Solve the problem.If two sound sources at the same volume are equidistant from a microphone, the pressure on the microphone is given by p = a cos ?1t + a cos ?2twhere a, ?1, ?2 are constants and t is time. Write p as a product of cosine functions.
What will be an ideal response?
p = 2a cos (
t) cos (
t)
Mathematics
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The circle graph shows the results of the student council presidential election. The complete circular area represents 100% of the votes.
The circle graph shows what percent of the vote each person received.Who got the most votes?
A. Ted B. Ann C. Lili D. Ming
Mathematics
Find the requested area.Find the area of the figure.
A. 39
m2
B. 16
m2
C. 79
m2
D. 38
m2
Mathematics
Simplify the expression. Use positive exponents. Assume variables represent nonzero real numbers.(2p3s2)2(s2)
A. 4p5s6 B. 4p5s8 C. 4p6s6 D. 2p6s6
Mathematics
Determine whether the statement is true or false. Justify your answer.
?
The graphs of 
and 
are identical.
?
A. False. 
B. True. 
Mathematics