Write the expression with only positive exponents and evaluate if possible. Assume all variables represent nonzero real numbers.-7x0
A. 0
B. -1
C. 1
D. -7
Answer: D
Mathematics
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A box contains $7.15 in nickels, dimes, and quarters. There are 44 coins in all, and the sum of the numbers of nickels and dimes is two less than the number of quarters. How many coins of each kind are there?
A. 17 nickels, 6 dimes, and 21 quarters B. 16 nickels, 5 dimes, and 23 quarters C. 16 nickels, 10 dimes, and 27 quarters D. 14 nickels, 7 dimes, and 23 quarters E. 18 nickels, 9 dimes, and 17 quarters
Mathematics
Evaluate.
A. -2 B. -13 C. 26 D. 2
Mathematics
Find the quotient and the remainder.5x3 - 7x2 + 7x - 8 divided by 5x - 2
A. x2 - x + 1; remainder -6 B. x2 - x + 1; remainder 10 C. x2 + x -1; remainder -6 D. x2 - x + 1; remainder 6
Mathematics
Find the opposite of the number.-4
A. -4
B. 0
C. 
D. 4
Mathematics