Identify and graph the polar equation.r2 = 2 cos(2?) 
A. 
rose with four petals
B. 
lemniscate
C. 
rose with four petals
D. 
lemniscate
Answer: D
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Determine the number of terms and identify the coefficient of each term of the expression.2w - 9c - x
A. 3; 2, -9, 1 B. 3; 2, 9, -1 C. 3; 2, 9, 1 D. 3; 2, -9, -1
Estimate the sum as indicated. Then answer the question.Estimate the following sum by first rounding to the nearest hundred. Does the estimate give you reason to doubt the stated sum?
A. Estimate: 122,200 ; no B. Estimate: 126,200 ; no C. Estimate: 122,200 ; yes D. Estimate: 126,200 ; yes
Solve the problem using two linear equations in two variables and Cramer's rule.Two different gasohol mixtures are available. One contains 5% alcohol and the other 12% alcohol. How much of each should be mixed to obtain 1500 gal of gasohol containing 10% alcohol? (Round to the nearest whole gallon.)
A. 625 gal 5%, 875 gal 12% B. 75 gal 5%, 180 gal 12% C. 1071 gal 5%, 1071 gal 12% D. 429 gal 5%, 1071 gal 12%
Provide the requested response.Suppose that a polynomial function of degree 4 with rational coefficients has 
as zeros. Find the other zeros.
A. 5 - i , 5 + 
B. -5i, 5 + 
C. -5i, -5 + 
D. 5 - i , -5 + 