Use the order of operations to simplify the expression.
? -24 ÷ (-4)
A. -48
B. -768
C. 48
D. 768
Answer: C
Mathematics
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Find the radius of convergence of the power series.
A. 1 B. 6 C. 3 D. ?
Mathematics
Evaluate the limit by direct evaluation. Change the form of the function where necessary. 
x2 - 4x - 6
A. Does not exist B. 18 C. -10 D. 2
Mathematics
Factor. Check by multiplying.4 + 4z
A. 4(1 + 4z) B. 4(0 + z) C. 4(4 + z) D. 4(1 + z)
Mathematics
The price of a certain commodity in dollars per unit at time t (measured in weeks) is given by
?
.
?
How fast is the price of the commodity changing at 
?
?
A. Increasing at the rate of $13/wk. B. Increasing at the rate of $19/wk. C. Decreasing at the rate of $19/wk. D. Increasing at the rate of $6/wk. E. Decreasing at the rate of $13/wk.
Mathematics