The heights of 82 roller coasters have a mean of 285.2 feet and a population standard deviation of 59.3 feet. find the standardized tests statistics and the corresponding p-value when the claim is that roller coasters are more than 290 feet tall.

A, b, c, and d have the coordinates (-8, 1), (-2, 4), (-3, -1), and (-6, 5), respectively. which sentence about the points is true? a. a, b, c, and d lie on the same line. b. and are perpendicular lines. c. and are parallel lines. d. and are intersecting lines but are not perpendicular. e. and are parallel lines.

What is the best approximation for the area of a circle with a radius of 4 m ? use 3.14 to approximate pi

Aculture started with 4,000 bacteria. after 5 hours, it grew to 5,200 bacteria. predict how many bacteria will be present after 19 hours. round your answer to the nearest whole number.