Solve the problem.Determine the length of a pendulum that has a period of 4 seconds.
A. 
ft
B. 
ft
C. 
ft
D. 
ft
Answer: D
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Use the rules for exponents to rewrite the expression and then evaluate the new expression. (2-2)0
A. 1
B. 
C. 0
D. -4
Solve.Mike works on commission selling electronic equipment. The linear function 
describes his annual income I when his total sales for the year are s. What is I(0). What does this result mean?
A. $28,000; this is Mike's annual salary if his total sales for the year are zero B. $28,000; this is the amount of sales for which Mike's annual salary is zero C. $28,000.03; this is the increase in Mike's annual salary for each $1000 increase in his sales D. $28,000.03; this is Mike's annual salary if his total sales for the year are zero
Describe all symmetries of the figure shown.
A. 1 line of symmetry, 90° rotation symmetry B. 3 lines of symmetry, 180° rotation symmetry C. 3 lines of symmetry D. 1 line of symmetry
Solve. Provide answers in interval notation.
> 0
A. [16, ?] B. (-16, ?) C. (16, -?) D. (-?, 16)