Find the sum of the arithmetic series using a formula.1 + 2 + 3 + ... + 510
A. 130,305
B. 260,610
C. 129,795
D. 260,100
Answer: A
Mathematics
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Solve the problem.Integrate 
over the region 1 ? x2 + y2 ? 36.
A. 2?(ln 6)2 B. ? ln 6 C. 2? ln 6 D. ?(ln 6)2
Mathematics
Simplify the complex fraction.
A. 
B. 
C. 
D. 
Mathematics
Provide the requested proof.In the figure below, 
and 
Prove that the triangle ABE is isosceles.
What will be an ideal response?
Mathematics
Write the decimal in words.9.00255
A. nine and two hundred fifty-five millionths B. nine and two hundred fifty-five hundred-thousandths C. nine and two hundred fifty-five thousandths D. nine and two hundred fifty-five tenths
Mathematics