Estimate the difference by rounding to one non-zero digit.61 - 16
A. 40
B. 80
C. 45
D. 50
Answer: A
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Find the limit.
(x3 + 5x2 - 7x + 1)
A. 29 B. 15 C. 0 D. does not exist
Solve the problem.In thermodynamics, the differential form of the internal energy of a system is dU = T dS - P dV, where U is the internal energy, T is the temperature, S is the entropy, P is the pressure, and V is the volume of the system. The First Law of Thermodynamics asserts that dU is an exact differential. Using this information, justify the thermodynamic relation 
= - 
.
What will be an ideal response?
For the pair of similar triangles, find the length of the indicated side.
In the upper triangle, the shortest side has length 16, and the middle side has length 24. In the lower triangle, the shortest side has length 12, the middle side has length 18, and the longest side has length 24. Find the length, x, of the longest side of the upper triangle.
A. x = 30 B. x = 32 C. x = 24 D. x = 40
Simplify the expression, if possible.10log10 5
A. 15 B. 10 C. 50 D. 5