Rewrite the expression as the sum and/or difference of logarithms, without using exponents. Simplify if possible.loga8x3yz5
A. 8 + logay + logaz5
B. 15 loga8xyz
C. loga8 - 3 logax - logay - 5 logaz
D. loga8 + 3 logax + logay + 5 logaz
Answer: D
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About how many students would you expect to prefer radio in a school of 500 students?
A. About 180 students B. About 25 students C. About 5 students D. About 90 students
Multiply.(6 - 6i)(5 + 7i)
A. -42i2 + 12i + 30 B. 72 + 12i C. 72 - 12i D. -12 - 72i
Factor completely.x7 - 5x6y - 14x5y2
A. x5(x - 2y)(x + 7y) B. x5(x + 7y)(x + 2y) C. x5(x - 7y)(x + 2y) D. x4(x - 7y)(x + 2y)
The atmospheric pressure P in pounds per square inch (psi) is given by
?
?
where a is the altitude above sea level (in miles). If a city has an atmospheric pressure of 13.27 psi, what is its altitude?
?
A. 2,565 ft B. 3,038 ft C. 2,549 ft D. 2,573 ft E. 2,557 ft