Provide an appropriate response.Perform the indicated operations without a calculator: 
=
A. 4
B. 9
C. 6
D. 2
Answer: C
Mathematics
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Solve.How many 5-card hands are possible with two 52-card decks?
A. 1,092,624 B. 47,842,522 C. 91,962,620 D. 2,598,960
Mathematics
Use identities to simplify the expression.
- tan x
A. - cot x
B. tan x
C. 
D. cot x
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.Assuming there were no outliers, the range of weights was approximately
A. 180 pounds. B. 400 pounds. C. 60 pounds. D. 90 pounds. E. none of these
Mathematics
Add and simplify. Write the answer as a mixed numeral if possible.9 + 3
A. 9
B. 13
C. 12
D. 13
Mathematics