Solve the equation by completing the square.x2 + 8x = 7
A. {4 + 
}
B. {-4 - 
, -4 + 
}
C. {-4 - 1
, -4 + 1
}
D. {-1 - 
, -1 + 
}
Answer: B
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Find the Taylor polynomial of order 3 generated by f at a.f(x) = x2, a = 7
A. P3(x) = 1 + 98(x - 7) + 1029(x - 7)2 + 9604(x - 7)3 B. P3(x) = 49 + 14(x - 7) + 21(x - 7)2 + 28(x - 7)3 C. P3(x) = 1 + 14(x - 7) + 21(x - 7)2 + 28(x - 7)3 D. P3(x) = 49 + 14(x - 7) + (x - 7)2
Factor completely.xz-xy
A. x B. x(z + y) C. xz(-xy) D. x(z - y)
Write the standard form of the equation of the circle whose radius is r and whose center is (h, k).r = 12; (h, k) = (8, 0)
A. x2 + (y + 8)2 = 12 B. (x + 8)2 + y2 = 144 C. (x - 8)2 + y2 = 144 D. x2 + (y - 8)2 = 12
The first card is a club and the second card is a diamond.
Two cards are dealt without replacement from a well-shuffled deck of cards. Find the probability of each event.