Solve the problem.A bacteria colony doubles in 5 hr. How long does it take the colony to triple? Use N = N0 2t/T, where N0 is the initial number of bacteria and T is the time in hours it takes the colony to double. (Round to the nearest hundredth, as necessary.)
A. 2.03 hr
B. 15 hr
C. 7.5 hr
D. 7.92 hr
Answer: D
Mathematics
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Evaluate the surface integral of the function g over the surface S.G(x,y,z) = x2 + y2 + z2; S is the surface of the cube formed from the coordinate planes and the planes 
and 
A. 80
B. 
C. 112
D. 
Mathematics
Solve the problem.The annual precipitation for one city is normally distributed with a mean of 267 inches and a standard deviation of 3.4 inches. In what percentage of years is precipitation in the city between 260.2 inches and 
?
A. 97.5% B. 95% C. 68% D. 99.8%
Mathematics
Identify the vertex of the given parabola.f(x) = (x + 3)2 + 3
A. (-3, -3) B. (3, 0) C. (0, 3) D. (-3, 3)
Mathematics
Solve.m2/5 + 2m1/5 - 8 = 0
A. 1024, 1,048,576 B. 32, -1024 C. 32 D. -32, 1024
Mathematics