Find the probability to the nearest hundredth that the value of the random variable is within one standard deviation of the mean.f(x) = 2(1 - x); [0, 1]
A. 0.75
B. 0.64
C. 0.50
D. 0.82
Answer: B
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For the point given in rectangular coordinates, find equivalent polar coordinates 
for 
and 
(0, -11)
A. (11, 180°) B. (11, 90°) C. (-11, 0°) D. (11, 270°)
Solve.A cyclist bikes at a constant speed for 24 miles. He then returns home at the same speed but takes a different route. His return trip takes one hour longer and is 29 miles. Find his speed.
A. 7 mph B. 5 mph C. 6 mph D. 4 mph
Solve the problem.Lin purchased shares of a stock for $9.57 per share forty years ago. Today the stock is worth $527.36 per share. Express to the nearest percent the ratio of what the stock is worth now to what the stock was worth when she purchased it.
A. 5511% B. 556% C. 1% D. 55%
Write the augmented matrix for the system. Do not solve. 2x + 3z = 22 -2y + 2z = 20 6x + 4y + 3z = 10
A. 
B. 
C. 
D. 