Answer the question about the given function.Given the function f(x) = 2x2 + 4x - 3, if x = -1, what is f(x)? What point is on the graph of f?
A. -5; (-1, -5)
B. -5; (-5, -1)
C. 3; (3, -1)
D. 3; (-1, 3)
Answer: A
Mathematics
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Solve the problem.The stream of water from a fire hose follows a parabolic curve and reaches a maximum height of 65 ft at a horizontal distance of 100 ft from the nozzle. Find the equation that represents the stream, with the origin at the nozzle.
A. y = - 
x2 + 
x
B. y = - 
x2 + 
x
C. y = - 
x2 + 
x
D. y = - 
x2 + 
x
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Identify the place occupied by the underlined digit.59,9
9,999
A. Thousands B. Hundred thousands C. Ten millions D. Ten thousands
Mathematics
Solve the problem.If cot ? = -8.0, find the value of cot ? + cot (? + ?) + cot (? + 2?).
A. -24 + 3? B. -22 C. -24 D. undefined
Mathematics
Rewrite the ratio as a ratio of natural logarithms and simplify.
A. ln 3
B. 
C. 32
D. 
Mathematics