Solve the problem.Assume that the temperature of a person during an illness is given by
for
where T is the temperature (°F) at time t, in days. Sketch the graph of the function. Find the maximum temperature and the time at which it occurs. 
A.
Maximum temperature is 101.6°F;
occurs after 7.5 days
B.
Maximum temperature is 101.6°F;
occurs after 5.5 days
C.
Maximum temperature is 98.6°F;
occurs after 11 days
D.
Maximum temperature is 102.6°F;
occurs after 5.5 days
Answer: B
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Find the indicated series by the given operation.Show that by integrating term by term the expansion of - , the result is the expansion for
A. = x2 +
x4 +
x6 +
x8 + . . .
B. = -x2 +
x4 -
x6 +
x8 - . . .
C. = x2 -
x4 +
x6 -
x8 + . . .
D. = -x2 -
x4 -
x6 -
x8 - . . .
Find the exact value of the expression. Do not use a calculator.tan - cos
A.
B. -
C. -
D.
Write the fraction as a decimal. If the decimal is a repeating decimal, write using the bar notation and then round to the nearest hundredth.
A. 0. ? 0.18
B. 0.18
C. 0.1 ? 0.19
D. 0. ? 0.18
Perform the indicated operation.-15 ? (-15)
A. 225 B. -240 C. 240 D. -225