Solve the problem.A study in a small town showed that the percent of residents who have college degrees can be modeled by the function 
where x is the number of years since 2010. Use numerical or graphical methods to find when the model predicts that the percent will be 70.
A. 2019
B. 2020
C. 2018
D. 2017
Answer: C
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Solve the problem.Find the slope of the line tangent to the curve 
at the point where 
A. 
B. -8
C. 8
D. -2
The function f is one-to-one. State the domain and the range of f and f-1. Write the domain and range in set-builder notation.f(x) = 6x - 2
A. f(x): D = {x|x > 6}, R is all real numbers; f-1(x): D = {x|x < 6}, R is all real numbers B. f(x): D is all real numbers, R = {y|y > -2}; f-1(x): D is all real numbers, R = {y|y < -2} C. f(x): D is all real numbers, R is all real numbers; f-1(x): D is all real numbers, R is all real numbers D. f(x): D = {x|x > 6}, R = {y|y > -2}; f-1(x): D = {x|x < 6}, R = {y|y < -2}
Solve.Avegail needs to determine the distance at certain points across a lake. Her crew and she are able to measure the distances shown on the diagram below. Find how wide the lake is to the nearest tenth of a meter.
A. 143.2 m B. 70 m C. 115.3 m D. 8.4 m
Multiply and simplify.(
- 3)(
- 4)
A. x
+ 12
B. x
+ 12
C. x
- 4
- 3
+ 12
D. x
+ 
+ 12