Use properties of logarithms to expand the logarithmic expression as much as possible. Where possible, evaluate logarithmic expressions without using a calculator.logw
A. logw3x
B. logw7 +logwx - logw4
C. logw7 +logwx + logw4
D. logw7x -logw4
Answer: B
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Simplify. Assume that variables can represent any value.
A. -5y - 5 B. ?5y + 5? C. 5?y? + 5 D. 5y + 5
Solve.A rental agent for vacation houses in southern Spain earns a flat amount of base pay per month plus a 6% commission on rentals sold during that month. One month he earns $4840 on rental sales of $39,000. What is his base monthly pay?
A. $2500 B. $290.40 C. $2300 D. $2600
Find the product.(4x + 5)3
A. 16x2 + 40x + 25 B. 64x3 + 240x2 + 300x + 125 C. 16x6 + 20x3 + 15,625 D. 64x3 + 240x2 + 240x + 125
Write a formula for the general term (the nth term) of the arithmetic sequence. Then use the formula for an to find a20, the 20th term of the sequence.a1 = - 
, d = 
A. an = 
n - 3; a20 = 
B. an = - 
n + 3; a20 = - 
C. an = 
n - 
; a20 = 25
D. an = - 
n + 
; a20 = - 32