Add the integers.4 + (-4) + (-25)
A. 33
B. -17
C. 25
D. -25
Answer: D
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Solve the problem.The number of bacteria growing in an incubation culture increases with time according to 
where x is time in days. Find the number of bacteria when 
and 
.
A. 4800 bacteria; 1,228,800 bacteria B. 4800 bacteria; 76,800 bacteria C. 4800 bacteria; 38,400 bacteria D. 19,200 bacteria; 76,800 bacteria
Solve the problem.The length of time it takes college students to find a parking spot in the library parking lot follows a normal distribution with a mean of 6.0 minutes and a standard deviation of 1 minute. Find the probability that a randomly selected college student will find a parking spot in the library parking lot in less than 5.5 minutes.
A. 0.3551 B. 0.1915 C. 0.2674 D. 0.3085
Solve.What is the weight of a concrete wall that is 25 feet long, 5 feet high, and 8 inches thick? Assume concrete weighs 150 pounds per cubic foot. Round to the nearest pound.
Fill in the blank(s) with the appropriate word(s).
Solve the equation.9 = s + 1
A. -8 B. 10 C. -10 D. 8