Write as the sum and/or difference of logarithms. Express powers as factors. log5
A. 
log5r + 
log5s - 
log5u
B. 
log5r ? 
log5s ÷ 2log5u
C. 3log5r + 4log5s - 2log5u
D. 
log5r + 
log5s - 2log5u
Answer: D
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Find the expected value.Numbers is a game where you bet $1.00 on any three-digit number from 000 to 999. If your number comes up, you get $600.00. If your number doesn't come up, you lose your $1. Find the expected net winnings.
A. -$1.00 B. -$0.50 C. -$0.42 D. -$0.40
Simplify.
(x - 6) - 6
A. 6x - 7
B. 
x - 5
C. 
x + 7
D. 
x - 7
Find the magnitude and direction angle (to the nearest tenth) for each vector. Give the measure of the direction angle as an angle in [0,360°].
A. 22; 102.3°
B. 22; 347.7°
C. 
; 282.3°
D. 
; 347.7°
Which single measure of central tendency - mean, median, or mode - would you say best describes the given set of measurements?
A. The Median B. The Mode C. The Mean