A water rocket is launched off the ground at an initial velocity of 20 feet per second. Which of the following can be used to model the flight of the water rocket?
a. h(t)=-16t^{2}+20t+20
b. h(t)= 16t^2+20t
c. h(t)=-16t^2+20
d. h(t)=-16t^2+20t+40

rectangle: 9 1/8 x 4 1/9 = 37 37/72in

parallelogram: b times h= 10.3 x 6.2 = 63.86

trapezoid: a+b/2 times h= 42.5

volume of prism: l times w times h= 36

choice b is correct

step-by-step explanation:

we have been given the following system of inequalities;

we are required to graph the solution to the system of inequalities. using a graphing tool, the graph of the system is as shown in the attachment. the continuous line represents the graph of while the dotted line represents .

i think its a and d

step-by-step explanation: