Solve the exponential equation. For irrational solutions, round to four decimal places.e-t = 0.5
A. {-1.6486}
B. {-0.6931}
C. {1.6486}
D. {0.6931}
Answer: D
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Solve the problem.At time t, the position of a body moving along the s-axis is 
Find the total distance traveled by the body from 
to 
A. 37 m B. 27 m C. 59 m D. 84 m
Fill in the missing factor.81x2 - 117xy + 40y2 = (9x - 5y)( )
A. 9x - 8y B. -8y - 9x C. 9 - 8xy D. -8x - 9y
Solve the problem.A paper boy collected $6.60, part in nickels and part in dimes. If the number of nickels was 17 more than one-half the number of dimes, how many nickels were there?
A. 46 nickels B. 3 nickels C. 40 nickels D. 30 nickels
For children between the ages of 5 and 13 years old, the Ehrenberg equation 
gives the relationship between the weight W (in kilograms) and the height h (in meters) of a child. Use differentials to estimate the change in the weight of a child who grows from 1.1 m to 1.3 m. Round the answer to the nearest tenth.
?
__________ kg
Fill in the blank(s) with the appropriate word(s).