Solve the problem.If a circle of radius 2 is made to roll along the x-axis, what is the equation for the path of the center of the circle?
A. y = 2
B. y = 4
C. x = 2
D. y = 0
Answer: A
Mathematics
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Evaluate the expression using the given values.
?x = 5, y = 7
A. 15 B. 91 C. 7 D. 63
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Find the exact value by using a half-angle identity.cos 
A. 
B. - 
C. 
D. - 
Mathematics
Decide whether or not the functions are inverses of each other.f(x) = 3x - 3, g(x) = 
x + 1
A. No B. Yes
Mathematics
Solve.Frank can type a report in 2 hours and James takes 7 hours. How long will it take the two of them typing together?
A. 
hr
B. 
hr
C. 
hr
D. 7 hr
Mathematics