Graph the function.y = 3 cos (?x)
A. 
B. 
C. 
D. 
Answer: D
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Write the phrase as a mathematical expression. Use x as the variable.The sum of 5.53 and x
A. 5.53x B. 5.53 + x C. 5.53 - x D. 5.53
Solve the problem.Find an equation for the level curve of the function f(x, y) = 4 - x2 - y2 that passes through the point 
.
A. x2 + y2 = 16 B. x2 + y2 = 12 C. x2 - y2 = 12 D. x2 + y2 = - 12
Find the maximum and minimum values of the function and the values of x and y for which they occur.F = 8x + 12y, subject to40x + 80y ? 560,6x + 8y ? 72,x ? 0,y ? 0.
A. Maximum: 96 when x = 12 and y = 0; minimum: 84 when x = 0 and y = 7 B. Maximum: 96 when x = 12 and y = 0; minimum: 0 when x = 0 and y = 0 C. Maximum: 100 when x = 8 and y = 3; minimum: 84 when x = 0 and y = 7 D. Maximum: 100 when x = 8 and y = 3; minimum: 0 when x = 0 and y = 0
Solve the problem.How long will it take for $2900 to grow to $33,000 at an interest rate of 6.9% if the interest is compounded quarterly? Round the number of years to the nearest hundredth.
A. 142.19 B. 166.34 C. 36.45 D. 35.55