Identify the graph of the pair of parametric equations.x = -8 cos t, y = 8 sin t
A. Circle
B. Ellipse
C. Line
D. Parabola
Answer: A
Mathematics
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Write the augmented matrix for the system. 2x - 2y + 8z = 32 3x + 6y + 5z = 18 7x - 2y + 8z = 47
A. 
B. 
C. 
D. 
Mathematics
Simplify the expression. Assume that all variables are positive when they appear.
A. -3x18y15 B. 9x12y10 C. -3x12y10 D. 3x12y10
Mathematics
How many gallons of 26% butterfat cream must be mixed with 300 gallons of 2% butterfat milk to obtain a 6% butterfat milk? ?
A. 12 gallons B. 90 gallons C. 6 gallons D. 60 gallons E. 62 gallons
Mathematics
Use the power rule and the power of a product or quotient rule to simplify the expression.(-6x3y6z)3
A. -216x3y6z B. -216x9y18z3 C. -18x10y19z4 D. 216x6y9z
Mathematics