Simplify
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Add. Simplify, if possible.
+ 
A. 
B. m - 5
C. m + 4
D. m - 4
Solve the problem.Carole's car averages 13.4 miles per gallon in city driving and 23.3 miles per gallon in highway driving. If she drove a total of 533.6 miles on 28 gallons of gas, how much of the gas (to the nearest gallon) was used for city driving?
A. 16 gallons B. 21 gallons C. 12 gallons D. 14 gallons
Compare the right-hand and left-hand derivatives to determine whether or not the function is differentiable at the point whose coordinates are given.
y = xy = 2x
A. Since limx?0+ f '(x) = -2 while limx?0- f '(x) = -1, f(x) is not differentiable at x = 0. B. Since limx?0+ f '(x) = 2 while limx?0- f '(x) = 1, f(x) is not differentiable at x = 0. C. Since limx?0+ f '(x) = 1 while limx?0- f '(x) = 2, f(x) is not differentiable at x = 0. D. Since limx?0+ f '(x) = 1 while limx?0- f '(x) = 1, f(x) is differentiable at x = 0.
Solve the problem.The fluctuation in power (in W) in a microlamp was measured five times, and the measured values were 60.10, 59.93, 60.16, 60.03, and 59.82. Find the standard deviation and variance for the data. Round the results to the nearest thousandth.
A. s = 0.271, v = 0.073 B. s = 0.121, v = 0.015 C. s = 0.015, v = 0.001 D. s = 0.224, v = 0.050