Change the complex number to rectangular form.325(cos 65° + j sin 65°)
A. 137.351 + 294.550j
B. 65.000 + 325.000j
C. -182.798 + 268.719j
D. 294.550 + 137.351j
Answer: A
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Subtract.-11.5 - 2.7
A. -8.8 B. 8.8 C. 14.2 D. -14.2
Factor the expression completely. If the polynomial is prime, state this as your answer.16x4 - 54x
A. 2(2x - 3)(4x2 + 6x + 9) B. 2x(2x - 3)(4x2 + 6x + 9) C. 2x(2x - 3)(4x2 - 6x + 9) D. 2x(2x + 3)(4x2 - 6x + 9)
Add or subtract horizontally.(5x5 - 5x4 + 8x2 - 9x + 10) - (15x5 + x3 - 4x2 - 3x + 1)
A. 10x5 - 5x4 - x3 - 5x + 10 B. -10x5 - 5x4 - x3 + 12x2 - 6x + 9 C. -10x5 - 5x4 + x3 + 11x2 + 6x - 9 D. -10x5 - 5x4 + x3 + 4x2 - 12x + 11
?A small community includes a farmer, a baker, and a grocer and has the input-output matrix 
and external demand matrix 
. Solve for the output matrix X in the equation
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?
A. ?
B. ?
C. ?
D. ?
E. ?