Factor the polynomial completely.49x2 + 42x + 9
A. (49x + 1)(x + 9)
B. (7x + 3)2
C. (7x - 3)2
D. (7x + 3)(7x - 3)
Answer: B
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The eccentricity is given of a conic section with one focus at the origin, along with the directrix corresponding to that focus. Find a polar equation for the conic section. e = 4, y = 3
A. r = 
B. r = 
C. r = 
D. r = 
Provide an appropriate response.Solve the following system of equations using the substitution method: 2a + b = -1 a - 3b = 17
Fill in the blank(s) with the appropriate word(s).
True or false?The intersection of the set of nonpositive rational numbers and the set of whole numbers is {0}.
A. True B. False
Tell whether the expression is a polynomial. If it is, give its degree.6x5 - 4
A. Polynomial; degree 5 B. Polynomial; degree 6 C. Polynomial; degree 4 D. Not a polynomial