Solve the problem.The area A = ?r2 of a circular oil spill changes with the radius. To the nearest tenth of a square foot, how much does the area increase when the radius changes from 5 ft to 5.1 ft?
A. 31.4 ft2
B. 2.0 ft2
C. 3.1 ft2
D. 15.7 ft2
Answer: C
Mathematics
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Determine how many lines will be in the truth table for the following statement.(p ? q) ? (~r ? s) ? ~t
A. 10 B. 25 C. 32 D. 8
Mathematics
List the factors of the number.40
A. 1, 2, 4, 5, 8, 10, 40 B. 1, 2, 4, 5, 8, 10, 20, 40 C. 1, 2, 4, 5, 8, 10, 16, 20, 40 D. 1, 2, 4, 5, 8, 10, 12, 20, 40
Mathematics
Decide whether the statement is compound.
is rational and 
is irrational.
A. Compound B. Not compound
Mathematics
Evaluate using the change-of-base formula. Round to four decimal places.log7 36.52
A. 5.2171 B. 0.5409 C. 1.8489 D. 1.5625
Mathematics