The probability density function for a random variable X is 
, 
Find 
Enter just a reduced fraction.
Fill in the blank(s) with the appropriate word(s).
1/4
Mathematics
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Find the volume of the solid generated by revolving the region bounded by the given lines and curves about the 
. y = 
, y = 0, x = 0, x = 9
A. 486? B. 18? C. 972? D. 324?
Mathematics
Factor completely, or state that the polynomial is prime.x3 - x2 - 42x
A. x(x + 6)(x - 7) B. (x2 + 1)(x - 42) C. prime D. x(x + 7)(x - 6)
Mathematics
Find the exact value of the expression without using a calculator.cos 
cos 
+ sin 
sin 
A. 
B. 
C. 
D. - 1
Mathematics
Give a direct proof of the following angles
Proof: STATEMENTS REASONS
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Mathematics