Simplify.i23 - i5
A. -2i
B. 2i
C. 0
D. -2
Answer: A
Mathematics
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Estimate the product by rounding to a single nonzero digit, then find the actual product.(9343)(7891)
A. Estimate: 73,725,600; Actual: 73,725,623 B. Estimate: 73,726,000; Actual: 87,291,649 C. Estimate: 73,470,000; Actual: 73,725,613 D. Estimate: 72,000,000; Actual: 73,725,613
Mathematics
Solve for the variable.x - 
x - 5 = 1
A. x = 24 B. x = -36 C. x = -24 D. x = 36
Mathematics
Solve the system by elimination. 7x + 3y = -6714x = -69 - 6y
A. {(-7, -6)} B. {(2, 4)} C. {(-7, 4)} D. ?
Mathematics
Solve the inequality. Write the solution in interval notation and graph the solution set.3x + 2 < 20
A. (-?, 6]
B. (-?, 6)
C. [6, ?)
D. (6, ?)
Mathematics