Use the Gauss-Jordan method to solve the system of equations. x - y + 8z = -107 x + 2y = 212x + y + 8z = -80
A. (5, 8, 0)
B. (5, 8, 7)
C. (5, 8, -13)
D. No solution
Answer: D
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Evaluate the work done between point 1 and point 2 for the conservative field F.F = 6xe3x2-4y2-9z2i - 8ye3x2-4y2-9z2j - 18ze3x2-4y2-9z2k ; P1(0, 0, 0) , P2(1, 1, 1)
A. W = e-10 B. W = e3 + e-4 + e-9 - 1 C. W = e-10 - 1 D. W = 0
Find the numerical value of the rational expression for the given value of x.
, x = -3
A. 
B. - 
C. 
D. - 
Solve the problem.Find the value of a retirement savings account paying an APR of 6.6% (compounded monthly) after 40 years of monthly contributions (contributions made at the end of each month, including the last month) when the monthly contribution is $170. Round your answer to the nearest cent.
A. $428,359.87 B. $367,541.45 C. $371,712.72 D. $410,337.81 E. $399,104.52
You are given a graph of a function of the form f(x) = ax2 + bx + c for different values of a, b, and c. For this function,a. Determine whether the discriminant is positive, negative, or zero.b. Determine if there are 0, 1, or 2 real solutions to f(x) = 0.c. Solve the equation f(x) = 0.
A. a. positive b. 2 c. x = -1, x = -2 B. a. negative b. 2 c. x = , x = 2 C. a. zero b. 2 c. x = -1, x = 2 D. a. positive b. 2 c. x = -1, x = 2