Express the sum using summation notation.
+ 
+ 
+ ... + 
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Solve the problem using matrices.John has a jarful of quarters and nickels. There are 99 coins in the jar. The value of the coins is $16.35. How many of each type of coin?
A. 94 quarters and 5 nickels B. 42 quarters and 57 nickels C. 62 quarters and 37 nickels D. 57 quarters and 42 nickels
Mathematics
Find a polar equation for the curve represented by the given Cartesian equation.
x² = 3y
Mathematics
Multiply.
A. 657 B. 642 C. 637 D. 757
Mathematics
Graph the inequality on the number line.x < -4
A. 
B. 
C. 
D. 
Mathematics