Write the expression in standard form.9 + 
+ 9 - 
A. 18 - 6i
B. 18 + 6i
C. 18 - 6
D. 18 + 6
Answer: A
Mathematics
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Find all the local maxima, local minima, and saddle points of the function.
A. f(-3, -8) = 213, local maximum B. f(3, 8) = -79, local minimum C. f(3, -8) = 177, saddle point D. f(-3, 8) = -43, saddle point
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Find all real numbers in the interval [0, 2?) that satisfy the equation.2 cos2x + 
cos x = 0
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.Tuition at a certain college recently increased from $3000 to $5000. Find the ratio of the increase in price to the original price in simplest form.
A. 3 to 8 B. 2 to 3 C. 3 to 5 D. 2 to 5
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Compute the square root.
A. 196
B. 38,416
C. 14
D. 
Mathematics