Solve the problem.On a map, the length of a nature-center trail is 7.2 centimeters. If the scale is 1 centimeters to 25 kilometers, what is the actual length of the trail? Round to the nearest tenth when necessary.
A. 180 km
B. 181 km
C. 184 km
D. 360 km
Answer: A
Mathematics
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Multiply.(-5x - 3)2
A. 25x2 + 9 B. -5x2 + 30x + 9 C. 25x2 + 30x + 9 D. -5x2 + 9
Mathematics
Find the real solutions of the equation.(x2 - 2)1/2 = 12
A. {146, -146}
B. {
, - 
}
C. {14}
D. {
}
Mathematics
Find area of circle. (Use 3.14 for ?)Find the area. Use 3.14 for ?.
A. 38.465 mi2 B. 153.86 mi2 C. 21.98 mi2 D. 43.96 mi2
Mathematics
Solve the problem.If a projectile is fired at an angle ? and initial velocity v, then the horizontal distance traveled by the projectile is given by 
Express D as a function of 2?.
A. D = 
v2 sin 2?
B. D = 
v2 cos 2?
C. D = 
v2 sin 2?
D. D = 
v2 sin 2?
Mathematics