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 x = 0 and x = 3.
A. 2600; 15,600
B. 5200; 20,800
C. 2600; 20,800
D. 2600; 10,400
Answer: C
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Translate the statement into an equation. Let the unknown number be represented by x. Then solve the equation for the unknown number.The quotient of some number and 25 is 40.
A. 25x = 40; x =
B. x + 25 = 40; x = 15
C. = 40; x = 1000
D. = 25; x = 1000
Provide an appropriate response.Change 0.28° to equivalent minutes and seconds. Round to the nearest second if necessary.
A. 16' 48" B. 64" C. 16' 8" D. 16' 96"
Solve the problem.In the following formula, y is the minimum number of hours of studying required to attain a test score of x: y = . How many hours of study are needed to score 83? Round to the nearest hundredth of an hour.
A. 4.51 hr B. 101.05 hr C. 1.75 hr D. 17.50 hr
Express the number in scientific notation.0.000007519
A. 7.519 × 106 B. 7.519 × 10-5 C. 7.519 × 10-6 D. 7.519 × 10-7