Solve the problem.In how many ways can 8 people be chosen and arranged in a straight line, if there are 11 people from whom to choose?

A. 990
B. 88
C. 1980
D. 6,652,800


Answer: D

Mathematics

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Provide an appropriate response.Let ABC be a right triangle with  Let  be the angle bisector of  with D on line segment , and E and F the points on  such that 

src="https://sciemce.com/media/4/ppg__rrrrrr0615191112__f1q148g6.jpg" style="vertical-align: -4.0px;" /> is perpendicular to  and  is the angle bisector of angle  Prove that 

What will be an ideal response?

Mathematics

Solve the problem.The driver of a car traveling at 36 ft/sec suddenly applies the brakes. The position of the car is  t seconds after the driver applies the brakes. How many seconds after the driver applies the brakes does the car come to a stop?

A. 12 sec B. 18 sec C. 6 sec D. 36 sec

Mathematics

Identify the group of terms as like or unlike.14z, -13z

A. Unlike B. Like

Mathematics

Find an equation for the graph.

A. y = 4 cos 
B. y = 4 sin (2x)
C. y = -4 cos (2x)
D. y = 4 cos (2x)

Mathematics