Perform the indicated operation. Write the answer in simplest form. If the answer is an improper fraction, write it as a mixed number.
A. 3
B. 2
C. 3
D. 9
Answer: B
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A card is drawn randomly from a standard 52-card deck. Find the probability of the specified event. The card is a 9.
A. 
B. 
C. 
D. 
Find the zeros of the function.f(x) = 4x2 + 40x + 100
A. -5, 5 B. 0, -5 C. 5 D. -5
Fill in the blank with one of the words or phrases listed below. 
Replacing a variable in an expression by a number and then finding the value of the expression is called 
for the variable.
A. equation B. simplified C. solution D. evaluating the expression
Solve the problem.The temperature (in degrees Fahrenheit) of a dead body that has been cooling in a room set at 70° is measured as 88°. One hour later, the body temperature is 87.5°. How long (to the nearest hour) before the first measurement was the time of death, assuming that the body temperature of the deceased at the time of death was 98.6°. Assume the cooling follows Newton's Law of Cooling: U = T + (Uo - T)ekt.
What will be an ideal response?