Write the expression in the standard form a + bi.Given z = 5 - 9i and w = 8 + 5i, evaluate 
.
A. 13 - 4i
B. -3 + 14i
C. 13 + 4i
D. -13 + 4i
Answer: A
Mathematics
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Rewrite the quadratic function in standard form by completing the square.f(x) = x2 + 6x - 4
A. f(x) = (x + 3)2 - 13 B. f(x) = (x + 3)2 + 13 C. f(x) = (x + 6)2 + 40 D. f(x) = (x + 6)2 - 40
Mathematics
Multiply.7(-9)
A. -63 B. -70 C. 70 D. 63
Mathematics
Represent the vector in the form v = ai + bj whose magnitude and direction angle are given.
= 14; ? = 270°
A. v = -14i - 14j
B. v = -14j
C. v = -14i
D. v = 14
Mathematics
Write the matrix in reduced row-echelon form.
What will be an ideal response?
Mathematics