State the period of the function:
?
?
A. 
B. 
?
C.
?
D.
?
E.
?
Answer: B
Mathematics
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Solve the problem.Persons taking a 30-hour review course to prepare for a standardized exam average a score of 620 on that exam. Persons taking a 70-hour review course average a score of 791. Find a linear function S(t), which fits this data, and which expresses score as a function of time.
A. S(t) = 3.8475t - 495.75 B. S(t) = -4.275t + 491.75 C. S(t) = 3.8475t + 495.75 D. S(t) = 4.275t + 491.75
Mathematics
Solve the equation.
x + 7 = 
x - 8
A. 
B. 
C. 
D. 
Mathematics
Decide whether the equation is or is not an identity.tan 
= -cot ?
A. Not an identity B. Identity
Mathematics
Solve the problem.What is the sum of the lengths 19 cm and 8 m? Give your answer in centimeters.
A. 819 cm B. 27 cm C. 99 cm D. 8019 cm
Mathematics