PLEASE HELP A ball is dropped from a height of 1,936 feet. The height of the ball, in feet, t seconds after it is dropped can be represented by the equation H(t) = −16t^2 + 1,936.

Which of the following represents the domain for the number of seconds the ball is in the air?

A. 0 < t < 11
B. 0 < t < 121
C. positive integers

What is the length of the segment, endpoints of which are intersections of parabolas y=x2? 11 4 x? 7 4 and y=? 7 8 x2+x+ 31 8 ?

According to the 2008 u. s. census, california had a population of approximately 4 × 10^7 people and florida had a population of approximately 2 × 10^7 people. which of the following is true? a. the population of california was approximately two times the population of florida. b. the population of florida was approximately twenty times the population of california. c. the population of florida was approximately two times the population of california. d. the population of california was approximately twenty times the population of florida.

Solve this 364x-64x=300x and 12(x2–x–1)+13(x2–x–1)=25(x2–x–1)