Convert the polar equation to a rectangular equation.r = 
A. y2 = 2x + 1
B. x2 = 2y + 1
C. y2 = -2x + 1
D. x2 = -2y + 1
Answer: A
Mathematics
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Let 
.
?
Write the terms of 
in descending powers of x.
?
A. 
B. ?
C. ?
D. ?
E. none of these
Mathematics
Solve the equation by the square root property.(2x + 2)2 = 16
A. {-3, 1} B. {0, 1} C. {1, 3} D. {-9, 9}
Mathematics
Solve the system of equations by using the inverse of the coefficient matrix if it exists and by the echelon method if the inverse doesn't exist.-2x - 6y = -2 2x - y = -5
A. (-2, 1) B. (1, -2) C. (-1, 2) D. (2, -1)
Mathematics
Choose the most reasonable metric length unit. Choose from km, m, cm, and mm.The length of the hammer is 35 
.
A. m B. cm C. km D. mm
Mathematics