Divide.
A. r2 + 4r + 8
B. 7r2 + 8r + 
C. 7r2 + 8r + 4
D. 7r2 - 8r - 4
Answer: C
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In a certain city there is a river running through the middle of the city. There are three islands and nine bridges as shown in the figure below.
It is possible to take a walk though this town, starting on the South Bank, crossing each bridge once (and only once) and ending
A. on island C. B. back on the South Bank. C. on island B. D. on the North Bank. E. none of these
Graph the inequality.y ? 
A. 
B. 
C. 
D. 
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?
Approximate the value using a calculator. Express answer rounded to three decimal places.e2.04
A. 5.545 B. 6.945 C. 15.154 D. 7.691