Solve the problem.Find the value for x in the following special right triangle. Use exact values. 
4 in.
A. 16 in.
B. 2 in.
C. 4
in.
D. 4 in.
Answer: C
Mathematics
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Find the length of the curve.The curve r = 7
, 0 ? ? ? 
A. 2?
B. 
?
C. 7(? + ln(? + 
))
D. 
(? + 2)
Mathematics
Sketch the graph of the equation in the rectangular coordinate system in three dimensions.3x - 6y + 9z = 18
What will be an ideal response?
Mathematics
Solve the problem.The profit that the vendor makes per day by selling x pretzels is given by the function 
Find the number of pretzels that must be sold to maximize profit.
A. 400 pretzels B. 20 pretzels C. 0.8 pretzels D. 800 pretzels
Mathematics
Find and simplify the difference quotient 
for the given function.f(x) = x2 + 9x - 2
A. 2x + h - 2
B. 
C. 2x + h + 9
D. 1
Mathematics