A circle is defined by the equation given below. What are the coordinates for the center of the circle and the length of the wall radius?

Acircle has a circumference of 7.850 units. what is its radius?

Car a and car b were in a race .the driver of car b claimed that his car was twice as fast as car a

Rachel is studying the population of a particular bird species in a national park. she observes every 10th bird of that species that she can find in the park. her conclusion is that the birds living in the park who belong to that species generally feed on insects. rachel's sample is . based on the sample she picked, rachel's generalization is