Solve the system of equations. If the system is dependent, express solutions in terms of the parameter z. x + y + z = -7 x - y + 2z = -3 4x + y + z = -10
A. (-1, -3.33, -2.67)
B. No solution
C. (-4, -1, -2)
D. (-4, -2, -1)
Answer: A
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Calculate the Taylor polynomial of second order that approximates f(x, y) near a.f(x, y) = 
, a = (4, 4)
A. 4 + 
(x - 4) + 
(y - 4) - 
(x - 4)2 - 
(x - 4)(y - 4) - 
(y - 4)2
B. 4 + 
(x - 4) + 
(y - 4) - 
(x - 4)2 - 
(x - 4)(y - 4) - 
(y - 4)2
C. 4 + 
(x - 4) + 
(y - 4) + 
(x - 4)2 + 
(x - 4)(y - 4) + 
(y - 4)2
D. 4 + 
(x - 4) + 
(y - 4) - 
(x - 4)2 + 
(x - 4)(y - 4) - 
(y - 4)2
Rewrite the statement using the if...then connective. Rearrange the wording or words as necessary.I'll leave when he arrives.
A. I'll leave when he arrives. B. If I leave, then he will leave. C. If he arrives, then I'll leave. D. If I will leave, then he'll arrive.
Solve the problem. Round to the nearest hundredth of a percent.Joshua needs money for a vacation. He can borrow at 9% simple interest or at the bank's simple discount rate. If he needs the money for 270 days, what is the maximum discount rate he should accept so that he does not pay more than the simple interest rate?
A. 8.51% B. 8.43% C. 7.49% D. 9.37%
Find the complete factored form of the polynomial f(x) that satisfies the given conditions.Degree 4, leading coefficient -5, zeros at -8, 5, 6i, and -6i
A. f(x) = -5(x + 8)(x - 5)(x + 6i)(x - 6i) B. f(x) = -5(x - 8)(x + 5)(x2 + 36) C. f(x) = -5(x + 8)(x - 5)(x2 + 36) D. f(x) = -5(x - 8)(x + 5)(x + 6i)(x - 6i)