Perform the indicated operations. Write the answer in the form a + bj.(4 + 3j) - (-2 + j)
A. 6 + 2j
B. 2 + 4j
C. 6 - 2j
D. -6 - 2j
Answer: A
Mathematics
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Write the equation of the circle in standard form. Find the center and radius. Then sketch the graph.x2 + y2 + 6x - 4y - 12 = 0
A. (x - 3)2 + (y - 2)2 = 25
(h, k) = (3, 2), r = 5
B. (x + 3)2 + (y + 2)2 = 25
(h, k) = (-3, -2), r = 5
C. (x - 3)2 + (y + 2)2 = 25
(h, k) = (3, -2), r = 5
D. (x + 3)2 + (y - 2)2 = 25
(h, k) = (-3, 2), r = 5
Mathematics
Provide an appropriate response.Explain the error in the following, assuming you were to factor completely: 
What will be an ideal response?
Mathematics
Use the rules for exponents to rewrite the expression and then evaluate the new expression. 42 ? 45
A. 262,144 B. 16,777,216 C. 16,384 D. 1,048,576
Mathematics
Express the fraction or mixed number as a percent.4
A. 41% B. 4.1% C. 0.41% D. 410%
Mathematics