Find the limit.
 Figure 3.png)
r(t) = 10i
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Find the limit.
A. 1 B. 7 C. 0 D. 11
Solve the problem.A certain radioactive isotope decays at a rate of 2% per 100 years. If t represents time in years and y represents the amount of the isotope left then the equation for the situation is 
In how many years will there be 94% of the isotope left?
A. 600 years B. 309 years C. 300 years D. 256 years
Find the area of the region specified in polar coordinates.One petal of the rose curve r = 10 cos 3?
A. 25?
B. 50?
C. 
?
D. 
?
Solve the problem.The formula A = P(1 + r)2 gives the amount A in dollars that P dollars will grow to in 2 years at interest rate r (where r is given as a decimal), using compound interest. Use the formula A = P(1 + r)2 to find what the rate of interest is if a principal amount of $4000 grows to $4665.60 in 2 years, if interest is compounded annually.
A. 10% B. 9% C. 6% D. 8%