Solve.A rope 10 feet long is cut into two unequal pieces. Each piece is used to form a square. Let x represent the length of the shorter piece of rope. Write a function A(x) that expresses the total area enclosed by the two squares.
A. A(x) = 100 - 20x
B. A(x) = 
C. A(x) = 
D. A(x) = 2x2 - 20x + 100
Answer: B
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Graph the function.A rotating beacon is 10 m from a straight wall. The length L of the light beam is given by 
. Sketch the graph of L as a function of t for 
. Show the portion of the graph which demonstrates meaningful values. Label significant points on the horizontal axis.
A. 
B. 
C. 
D. 
Color the map with four colors. No two areas with a common border can have the same color.
What will be an ideal response?
Solve the problem.Let f(x) compute the cost of a rental car after x days of use at $40 per day. What is the interpretation of the solution of 
A. The number of days rented for $40 B. The cost of rental for 40 days C. The number of days rented for $210 D. The cost of rental for 210 days
Simplify the expression. Assume that variables represent nonzero numbers.
0
A. undefined
B. 0
C. 1
D. 