Simplify the complex number and write it in standard form.
?
?
A. ?
B. ?
C. ?
D. ?
E. ?
Answer: D
Mathematics
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Evaluate the given binomial coefficient.
A. 120 B. 1 C. 0 D. 5
Mathematics
Find the intervals on which the function is continuous.y = 
A. [-
, 
]
B. (-?, ?)
C. (-?, -
], [
, ?)
D. [
, ?)
Mathematics
Estimate the difference by rounding to one non-zero digit.952 - 410
A. 542 B. 500 C. 600 D. 1400
Mathematics
Solve by substitution and check.x + y = 9 y = 2x + 3
A. (7, 2) B. (2, 7) C. (3, 6) D. (1, 9)
Mathematics