Simplify the expression by removing as many factors as possible from under the radical. Assume that all variables represent positive real numbers.
? 
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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The nth term of a sequence is given. Find the first 4 terms.an = 
A. - 
, - 
, - 
, - 
B. 
, - 
, - 
, - 
C. 
, 
, 
, 
D. 
, - 
, 
, - 
Mathematics
Perform the indicated operations.(2x + y - z)2
A. 4x2 + y2 + z2 - 2xyz B. 4x2 + y2 + z2 + 2xy - 2xz - 2yz C. 4x2 + y2 + z2 D. 4x2 + y2 + z2 + 4xy - 4xz - 2yz
Mathematics
Multiply. 10.4 × 0.08
A. 0.832 B. 83.2 C. 0.0832 D. 0.83
Mathematics
As part of a study on the metabolism of athletes, 400 college basketball players are randomly chosen and their weights taken. The distribution of the weights is approximately normal. The average weight is 215 pounds and the standard deviation is 15 pounds.Approximately how many players had weights between 215 and 225 pounds?
A. 50 B. 25 C. 20 D. 100 E. none of these
Mathematics