A child throws a penny upward out of a window and watches it fall to the ground. The function f (t) = –16t^2 + t + 10 represents the penny's distance in feet above the ground t seconds after the penny is thrown.
Approximately how many seconds does it take the penny to hit the ground?

Triangle jkl was dilated using the rule dm, 1/3 the image, triangle j’ k’ l’ is the result of the dilation. a.5 units b.7.5 units c.10 units d.12.5 units

Elena and her husband marc both drive to work. elena's car has a current mileage (total distance driven) of 15,000 and she drives 23,000 miles more each year. marc's car has a current mileage of 46,000 and he drives 9,000 miles more each year. will the mileages for the two cars ever be equal? explain.

Which of the following is true for the relation f(x)=2x^2+1