If a population is a sample of the population could be A. the kids on the playground, all the people at the park B. the entire audience, people in the front row c. trees over 20 feet tall, the entire forest O D. 6th grade students whose last name begins with 'T', all students in 6th grade​

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answer:

the domain is the set { -2, 0, 2, 3}

discussion:

the domain is the set of x values in the ordered pairs (x,y). taking the x, or first component, of each ordered pair gives   -2, 0, 2, 3.

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mrb

the arc length is found by finding the circumference of the full circle (2xpixradius) and then dividing by 4 to find just one quarter of the circle (90 degrees).