Solve the problem.The base radius and the height of a cylindrical can tank were measured at 35 cm and 50 cm.The precentage errors in these measurements do not exceed 0.2% for the base radius and 0.7% for the height. Approximate the worst possible percentage error in the volume of the can. Assume that the sides and ends of the can are of negligible thickness.
A. 1.4%
B. 1.1%
C. 0.9%
D. 1.8%
Answer: B
Mathematics
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Solve the problem.In the formula N = Iekt, N is the number of items in terms of an initial population I at a given time t and k is a growth constant equal to the percent of growth per unit time. How long will it take for the population of a certain country to double if its annual growth rate is 4.1%? Round to the nearest year.
A. 7 yr B. 17 yr C. 49 yr D. 1 yr
Mathematics
Find the length of the side given that ?ABC ? ?DEF.the length of side EF
A. length of side AC B. length of side AB C. length of side BC
Mathematics
Choose the graph that matches the equation. y = -2x
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.Write 490 out of 500 college students as a decimal and as a percent.
A. 9.8, 980% B. 0.98, 980% C. 0.98, 9.8% D. 0.98, 98%
Mathematics