Find the area of the shaded region. (Assume that given measurements are exact, and round approximate answers to the nearest tenth of a square unit.) Use 
?
?
A. 900.0 in.2
B. 706.9 in.2
C. 176.7 in.2
D. 225.0 in.2
E. 353.4 in.2
Answer: C
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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
Provide an appropriate response. Find tan 0.8564 rounded to the nearest ten-thousandth.
A. 2.348 B. 0.4265 C. 1.1531 D. 0.8672
Use a double-angle identity to evaluate the expression.cos 
A. - 
B. 
C. 
D. - 
Identify the specified angles.Identify all interior angles. 
A. ?1, ?4 , ?5, and ?8 B. ?1, ?2 , ?7, and ?8 C. ?2, ?3 , ?6, and?7 D. ?1, ?6, ?3, and ?5