Solve for x.
x - 
x = 3
A. x = 90
B. x = 45
C. x = -45
D. x = -90
Answer: B
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Find all the local maxima, local minima, and saddle points of the function.
A. f(6, 6) = -1,679,610, local minimum B. f(0, 0) = 6, local maximum; f(6, 6) = -1,679,610, local minimum C. f(6, 0) = 6, saddle point; f(0, 6) = 6, saddle point D. f(0, 0) = 6, local maximum
Express the number in decimal notation.4.14 × 10-4
A. 0.0000414 B. -414,000 C. 0.000414 D. 0.00414
Solve the equation.10
2 - 27(y + 3)2 + 5 = 0
A. 
B. 
C. 
D. 
Solve the problem.If an object is thrown upward with an initial velocity of 
, its height after t sec is given by 
. Find the maximum height attained by the object. (The object will attain maximum height exactly at the halfway point in terms of the time t, where t = 0 is at the beginning of the object's flight, and the final time is when the object hits the ground.)
A. 96 ft B. 144 ft C. 128 ft D. 80 ft