Determine if the equation is an identity.
= 
A. Identity
B. Not an identity
Answer: A
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Estimate error made by using the partial sum S4 as an approximation to the sum S of the entire series.
A. 1.07 x 10-5 B. 3.20 x 10-4 C. 4.00 x 10-4 D. 6.40 x 10-5
From the set below, select a number that fits the statement below. This rational number is not defined in the set of integers.
A) -4
B) 4
C) 3
D) 0
E) 
Solve the problem.A 100-liter mixture of chlorine and water is 3% chlorine. (i) Write a rational expression in x whose values give the percentage (in decimal form) of the mixture that is chlorine when x gallons of water are added to the mixture. (ii) Find the percentage of chlorine in the mixture if 80 gallons of water are added to it. Round to the nearest percent, if necessary.
A. (i) 
;
(ii) 3%
B. (i) 
;
(ii) 2%
C. (i) 
;
(ii) 129%
D. (i) 
;
(ii) 4%
The rate of depreciation of a building is given by 
dollars per year, 
. Use the definite integral to find the total depreciation over the first 10 years.
?
A. $260,000 B. $26,000 C. $130,000 D. $13,487 E. $520,000