Use a calculator to find the value of the expression rounded to two decimal places.cos-1 
A. 109.47
B. -19.47
C. -0.34
D. 1.91
Answer: D
Mathematics
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Perform the indicated operation and simplify.2
? 3
A. 6
B. 6
C. 
D. 6
Mathematics
Solve.A church has 7 bells in its bell tower. Before each church service 4 bells are rung in sequence. No bell is rung more than once. How many sequences are there?
A. 35 B. 840 C. 210 D. 420
Mathematics
Determine if the function is a power function. If it is, then state the power and constant of variation.f(x) = 4x-3/7
A. Power is 
; constant of variation is 4
B. Power is 4; constant of variation is - 
C. Not a power function
D. Power is - 
; constant of variation is 4
Mathematics
Solve the inequality. Express your answer using interval notation. Graph the solution set.x(9x - 6) ? (3x + 7)2
A. 
B. 
C. 
D. 
Mathematics