Perform the indicated operation and simplify. Write the result in the form a + bi.(4 + 5i)(4 - 5i)
A. -9 + 0i
B. 16 - 25i2
C. 41 + 0i
D. 16 - 25i
Answer: C
Mathematics
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Use the given transformation to evaluate the integral.
Rwhere R is the interior of the ellipsoid 
A. 320? B. 120? C. 360? D. 160?
Mathematics
Factor by grouping.12x3 + 20x2 + 3x + 5
A. (4x2 + 1)(3x + 5) B. (4x2 - 1)(3x + 5) C. (4x + 1)(3x + 5) D. (4x2 + 1)(3x - 5)
Mathematics
Write the whole number in words.22,000,674
A. twenty-two hundred million, six hundred seventy-four B. twenty-two million, six hundred seventy-four C. twenty-two million, six thousand seventy-four D. two million, two thousand, six hundred seventy-four
Mathematics
Solve the polynomial inequality and graph the solution set on a number line.4x2 + 5x - 6 ? 0
A. [-2, ?)
B. 
C. (-?, -2] ? 
D. 
Mathematics