Solve the problem.Ariel, a marine biologist, models a population P of crabs, t days after being left to reproduce, with the function 
. Assuming that this model continues to be accurate, when will this population become extinct? (Round to the nearest day.)
A. 707 days
B. 1512 days
C. 911 days
D. 547 days
Answer: D
Mathematics
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Graph the function, showing all asymptotes (those that do not correspond to an axis) as dashed lines. List the x- and y-intercepts.f(x) = 
A. x-intercept: (-1, 0) , y-intercept: 
;
B. x-intercept: (-1, 0) , y-intercept: 
;
C. x-intercept: (1, 0) , y-intercept: 
;
D. x-intercept: (1, 0) , y-intercept: 
;
Mathematics
Solve the problem.A recipe calls for 
cup of butter. How much is needed to double the recipe?
A. 
c
B. 
c
C. 
c
D. 
c
Mathematics
Simplify.
A. 
B. 4
C. 
D. 
Mathematics
A formula is given, along with values for all but one of the variables in the formula. Find the value of the variable that is not given.C = 2?r; C = 12.56, ? = 3.14
A. r = 15.70 B. r = 2 C. r = 78.88 D. r = 4
Mathematics