Use front-end rounding to round each number. Then, add or subtract the rounded numbers to get an estimated answer. Finally, find the exact answer.estimateexact
A. Estimate: $71; exact: $73.63
B. Estimate: $81; exact: $81.55
C. Estimate: $81; exact: $83.65
D. Estimate: $71; exact: $73.53
Answer: D
Mathematics
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Replace the ? with the inequality symbol <, >, or =.|-45| ? |42|
A. < B. > C. =
Mathematics
Use synthetic division to find the quotient and the remainder.
A. quotient: 2x4 + x3 - x2 + 2x + 1; remainder: 6 B. quotient: 2x4 + x3 + x2 + 4x + 3; remainder: 8 C. quotient: 2x4 + x3 + 4x2 + 3x; remainder: 8 D. quotient: 2x4 - 3x3 - x; remainder: 6
Mathematics
Write the complex number in the form a + bi.5
A. 5i B. 5 C. -5 D. -5i
Mathematics
Simplify.
- 
A. 8
B. -20
C. -4
D. -4
Mathematics