Solve the linear system using an inverse matrix.x + 2y + 3z = -12x + y + z = 1x - 2z = 10
A. (18, -21, 4)
B. (-12, 0, 0)
C. (17, -33, 4)
D. (-10, -11, 0)
Answer: A
Mathematics
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Solve the problem.If v = i + 4j - 2k and w = -5i + 4j - k, then evaluate v × w.
A. -12i - 9j - 16k B. -4i + 7j + 24k C. 4i + 11j + 24k D. 24i - 4j - 11k
Mathematics
Factor completely. If unfactorable, indicate that the polynomial is prime.(x + 2)2 - 9
A. (x + 11)(x - 7) B. (x + 1)(x - 5) C. x2 + 4x - 5 D. (x + 5)(x - 1)
Mathematics
Factor the polynomial f(x). Then solve the equation f(x) = 0.f(x) = x3 - 3x2 - 16x + 48
A. (x - 3)(x + 4)(x - 4) ; 3, -4, 4 B. (x - 3)(x + 4)(x - 4) ; -3, 4, -4 C. (x - 3)(x + 4)(x - 5) ; 3, -4, 5 D. (x + 3)(x - 4)(x + 4) ; -3, 4, -4
Mathematics
Perform the indicated operations and simplify the result. Leave the answer in factored form.
? 
A. 
B. 
C. 
D. 
Mathematics