Find the circumference of the circle whose radius or diameter is given. Use 
or 
as indicated. r = 3.5 ft. Use ? ? 3.14.
A. C ? 4.445 ft
B. C ? 21.98 ft
C. C ? 38.465 ft
D. C ? 10.990 ft
Answer: B
Mathematics
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Find the second derivative of the function.r = 
(9 - ?)
A. 
= 
- ?
B. 
= 
C. 
= - 
- 1
D. 
= - 
- 1
Mathematics
Solve.Jenna read 
of her book on Monday, 
of her book on Tuesday, and 
of her book on Wednesday. What part of her book has she read?
A. 
B. 
C. 
D. 
Mathematics
Use Cramer's rule to solve the linear system. If D = 0, use another method to determine the solution set. x - y + 4z = 54x + z = 0 x + 2y + z = -10
A. {(0, 0, -5)} B. {(0, -5, 0)} C. Cramer's rule does not apply since D = 0; ? D. {(0, -5, 5)}
Mathematics
Convert to fraction notation.3
A. 
B. 
C. 
D. 
Mathematics