Determine whether the set is well defined or not.{x :x is a football team that has won the Super Bowl}
A. Not well defined
B. Well defined
Answer: B
Mathematics
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Express the number in decimal notation.2.8818 × 105
A. 2,881,800 B. 144.09 C. 288,180 D. 28,818
Mathematics
Simplify. Assume that all variables represent positive numbers.
A. y
B. 
C. y7
D. y14
Mathematics
Use the distributive law to factor the given expression.7 + 56a + 77b
A. 56(1 + a + b) B. 7(1 + 8a + 11b) C. 7(1 + 56a + 77b) D. 7(0 + 8a + 11b)
Mathematics
Solve the problem.Michael's bank contains only nickels, dimes, and quarters. There are 56 coins in all, valued at $4.90. The number of nickels is 4 short of being three times the sum of the number of dimes and quarters together. How many dimes are in the bank?
A. 11 dimes B. 6 dimes C. 41 dimes D. 9 dimes
Mathematics