Solve the problem. Round to two decimal places if needed.A sector of a circle has an area of 31 square meters. Find the radius of the circle if the central angle that forms the sector is 5 radians.
A. 77.5 meters
B. 310 meters
C. 8.8 meters
D. 3.52 meters
Answer: D
Mathematics
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Write a quadratic equation in standard form with the given solution set.{-5
, 5
}
A. x2 - 10
x + 250 = 0
B. x2 + 10
x - 250 = 0
C. x2 - 250 = 0
D. x2 + 250 = 0
Mathematics
Multiply and simplify.(
+ 
)(
- 
)
A. 16
B. 13 - 2
C. 10
D. 13 - 2
Mathematics
Solve the problem.It takes 
seconds for an object to fall from a height of 50 feet to a height of h feet above the ground. From this height, how much longer does it take for an object to drop to a height of 12 feet above the ground than to drop to a height of 42 feet above the ground?
A. 
sec
B. 
sec
C. 
sec
D. 
sec
Mathematics
?
?Use the given information to write an equation for y.
A. ?
B. ?
C. ?
D. ?
E. ?
Mathematics