Solve.The rear wheel of a lawn tractor has a 10-in. radius. Find the angle (in radians) through which a wheel rotates in 30 sec if the tractor is traveling at a speed of 9 mph? Round to the nearest tenth, if necessary.
A. 475.2 radians
B. 27 radians
C. 52.8 radians
D. 1,710,720 radians
Answer: A
Mathematics
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Evaluate the expression.cot 450°
A. Undefined
B. 1
C. 0
D. 
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Solve the problem.A radio transmission tower is 140 feet tall. How long should a guy wire be if it is to be attached 8 feet from the top and is to make an angle of 25° with the ground? Give your answer to the nearest tenth of a foot.
A. 331.3 feet B. 312.3 feet C. 154.5 feet D. 145.6 feet
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Find the slope and y-intercept of the line.y = -8
A. slope = 1; y-intercept = -8 B. slope = 0; no y-intercept C. slope = 0; y-intercept = -8 D. slope = -8; y-intercept = 0
Mathematics
Identify whether the equation is a linear equation in one variable. Answer "is" or "is not."
= 8
A. is B. is not
Mathematics