Find the product. Write the answer in standard form.5i(6 - 5i)
A. - 30i - 25i2
B. 30i + 25i2
C. 30i - 25
D. 25 + 30i
Answer: D
Mathematics
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Perform the matrix row operation and write the new matrix.
-2R1 + R2
A. 
B. 
C. 
D. 
Mathematics
Solve the compound inequality and graph the solution set on a number line. Except for the empty set, express the solution set in interval notation.-31 ? -4x - 3 < -15
A. (3, 7]
B. (-?, 3] ? (7, ?)
C. [3, 7)
D. ?
Mathematics
A quadratic equation in two variables will have the shape of a 
when graphed.
A. vertical line B. horizontal line C. parabola D. none of these
Mathematics
Evaluate.0!
A. 1 B. undefined C. 0 D. 2
Mathematics