Write expanded notation.692

A. 6 + 9 + 2
B. 600 + 90 + 2
C. 6,000 + 900 + 20
D. 200 + 90 + 6


Answer: B

Mathematics

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Which of the following has the greater payout and why?  I.  A 40% probability of winning $9,000 and a 60% probability of no payout. II. An 75% probability of winning $2,000 and a 25% probability of no payout. ?

A. ?I. has the higher payout. The expected value is $3,600. B. ?II. has the higher payout. The expected value is $1,500. C. ?I. has the higher payout. The expected value is $5,400. D. ?II. has the higher payout. The expected value is $500. E. ?Both have the same payout.

Mathematics

Find all the complex roots. Write the answer in the indicated form.The complex cube roots of -8 (rectangular form)

A. -2, 1 + i, -1 - i
B. -2, -1 - i, 1 - i
C. -2, -1 + i, -1 - i
D. -2, 1 + i, 1 - i

Mathematics

Simplify.

A. 40
B. 30
C.
D. 10

Mathematics

Multiply. Write the answer in lowest terms and as a whole or mixed number where possible. ? 308 ? 

A. 57
B. 48
C. 52
D. 52

Mathematics