Practice MCQ with Calculator

• -1.58

• -1.63

• -1.89

• -2.33

• 2.3

• 4.3

• 5.3

• 3.3

If y=2x-8, what is the minimum fo the product of xy?

• -16

• -4

• 0

• -8

A railroad track and a road cross at right angles. An observer stands on the road 70 meters south of the crossing and watchers as eastbound train traveling at 60 meters per second. At how many meters per second is the train moving away from the observer 4 seconds after it passes through the intersection.

• 57.60

• 57.88

• 60.00

• 67.40

What is the area of the region in the first quadrant enclosed by the graph of y=cosx, y=x and the y-axis

• 0.127

• 0.385

• 0.947

• 0.400

• 1

• 2

• 1