Express the sum using summation notation.35 + 45 + 55 + ... + 85
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Rewrite the fractions as equivalent fractions with the LCD.
and 
A. 
and 
B. 
and 
C. 
and 
D. 
and 
Mathematics
Solve the problem.How long will it take for $6200 to grow to $49,000 at an interest rate of 4.2% if the interest is compounded continuously? Round the number of years to the nearest hundredth.
A. 0.49 yr B. 4.92 yr C. 4922.07 yr D. 49.22 yr
Mathematics
Perform the indicated operations.
- 
+ 
A. 
B. 
C. 
D. 
Mathematics
Determine whether the equation defines y as a function of x. y = ± 
A. function B. not a function
Mathematics