Perform the indicated operation.Subtract (12a5 - 14a3) from (-8a5 + 3a3).
A. 4a5 - 11a3
B. -20a5 - 11a3
C. -20a5 + 17a3
D. -3a8
Answer: C
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Rewrite the expression as the sum and/or difference of logarithms, without using exponents. Simplify if possible.log2
A. 8 log2x + 7 log2y + log25 B. (8 log2x)(7 log2y) - log25 C. 8 log2x - 7 log2y - log25 D. 8 log2x + 7 log2y - log25
Write the expression in the standard form a + bi.If z = 3 - 6i and w = 1 + 5i, evaluate 
.
Fill in the blank(s) with the appropriate word(s).
Solve the problem.In Smithville, there were 234 teachers in 1990 and 318 teachers in 2000. Find the percent of increase in the number of teachers in Smithville during this time period. Round to the nearest tenth of a percent.
A. 26.4% B. 35.9% C. 43.1% D. 39.5%
Give the numerical coefficient of the term.-8y
A. 8y B. -8 C. y D. 8