Express the sum using summation notation with a lower limit of summation not necessarily 1 and with k for the index of summation.4 + 
+ 5 + 
+ ... + 
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Solve the initial value problem.
= - 
cos 
?, r(0) = -3
A. r = cos 
? - 4
B. r = -sin 
? - 3
C. r = - 
sin 
? - 3
D. r = sin 
? - 3
Mathematics
Find the mean of the set of data. Round to the nearest tenth.80, 42, 53, 53, 42, 80, 2, 2, 2, 80, 2, 2, 53
A. 40.9 B. 38.1 C. 36.7 D. 37.9
Mathematics
Write the rational number in lowest terms.
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.Ron and Kathy are ticket-sellers at their class play, Ron handling student tickets that sell for $2.00 each and Kathy selling adult tickets for $4.50 each. If their total income for 364 tickets was $1175.50, how many did Ron sell?
A. 163 tickets B. 179 tickets C. 185 tickets D. 157 tickets
Mathematics