Solve.The earned run average (or ERA) is a statistic used in baseball to represent the average number of earned runs that a pitcher allows. A pitcher's ERA can be calculated using the expression 
, where E stands for the number of earned runs a pitcher gave up while getting O outs. Simplify this complex rational expression.
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Write a general term an for the sequence. Assume that n begins with 1.
, 
, 
, 
, . . .
A. an = 
n
B. an = 
n
C. an = 
(n - 1)
D. an = 
n-1
Mathematics
Use the properties of logarithms to find the exact value of the expression. Do not use a calculator.log4 23 ? log23 64
A. 64 B. 3 C. 23 D. 4
Mathematics
List all the elements of B that belong to the given set.B = {9, 
, -11, 0, 
, - 
, 8.3}Integers
A. {9, 0}
B. {9, 0, 
}
C. {9, -11, 0}
D. {9, -11}
Mathematics
If a bag of chips costs c dollars and a bottle of orange juice costs j dollars, evaluate the expression c + j to find the total cost of the two items.Chips: $1.75, orange juice: $2.95
A. $3.70 B. $4.70 C. $4.60 D. $3.60
Mathematics