True or False?
?
?
A. false
B. true
Answer: A
Mathematics
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Solve the problem.A spherical tank of water has a radius of 
, with the center of the tank 
above the ground. How much work will it take to fill the tank by pumping water up from ground level? Assume the water weighs 
Give your answer to the nearest ft ? lb.
A. 11,415,040 ft ? lb B. 17,930,703 ft ? lb C. 35,861,406 ft ? lb D. 44,826,757 ft ? lb
Mathematics
Evaluate the expression using the given values.
?x = 3, y = 10
A. 
B. 
C. 
D. 
Mathematics
Find all positive and negative integers b such that the trinomial is factorable.x2 + bx - 2; b = ?
A. 3 B. ±1 C. ±3 D. 1
Mathematics
The probability density function of X is f (x) = 
over [0, 2] . Compute each of the following.
(a) E ( X ) (b) SD(X )
Mathematics