Use a grapher to graph the function.When a pendulum of length 
has swung so that x is the radian measure of the angle formed by the pendulum and a vertical line, then if y cm is the vertical height of the end of the pendulum above its lowest position, 
. Graph the function for 
A. 
B. 
C. 
D. 
Answer: C
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Use factoring techniques to solve the equation.x2 - 5x - 6 = 0
A. {1, 6} B. {-1, 6} C. {-1, -6} D. {1, -6}
Round as indicated.2172 to the nearest hundred
A. 2190 B. 2200 C. 2300 D. 2100
Solve the problem.Benjamin never has more than 21 hours free during the week. He is trying to make a weekly plan for dividing his free time between reading and working out. He wants to spend at least 8 hours per week reading. Write a system of inequalities to describe the situation. Let x represent the number of hours for reading and y represent the number of hours for working out.
A. x + y ? 21 x ? 8 y ? 0 B. x + y ? 21 x ? 8y x ? 0 y ? 0 C. x + y ? 21 x ? 8y x ? 0 y ? 0 D. x + y ? 21 y ? 8 x ? 0
Find the exact value of the expression.sin 105°
A. - 
B. - 
C. 
D. 