HELP ASAP! A projectile is launched at a height of h feet above the ground at an angle of theta with the horizontal. The initial velocity is v0 feet per second, and the path of the projectile is modeled by the parametric equations.
x=(v0 cos theta)t and
y=h+(v0 sin theta)t-16t^2
Write the parametric equations to model the path of a projectile launched from ground level (h=0) at the given values of theta and v0:
theta=40 degrees
v0=128 feet per second
-Determine the maximum height?(feet)
-Give the time the object reaches this height?(seconds)
-give the approximate horizontal distance the objects is at this point?(feet)
-determine the time the object will hit the ground after it is launched?(seconds)

go and ask your mom to you

because linear equations are a lot simpler than quadratics equations, and linear equations formula is a lot easier to memorize. that's why i think they're harder.

i believe the correct answer is b.

step-by-step explanation:

i found the life tables for the year 2012. 

life table of males at age 30. probability of dying between ages x and x+1

total population:  

29–30 . . . . . . . . . . . . 0.001030

30–31 . . . . . . . . . . . . 0.001061

males:  

29–30 . . . . . . . . . . . . 0.001420

30–31 . . . . . . . . . . . . 0.001448

white population

29–30 . . . . . . . . . . . . 0.001005

30–31 . . . . . . . . . . . . 0.001037

white males

29–30 . . . . . . . . . . . . 0.001372

30–31 . . . . . . . . . . . . 0.001399

non hispanic white population

29–30 . . . . . . . . . . . . 0.001083

30–31 . . . . . . . . . . . . 0.001116

non hispanic white males

29–30 . . . . . . . . . . . . 0.001477

30–31 . . . . . . . . . . . . 0.001503

jacob, non hispanic white male. 30 years old.

probability that jacob lives to be 30 years old. 

since the given probabilities are probabilities of dying, i think we simply subtract it from 1 to get the probability of living. we will use the probability of non hispanic white male.

                                          probability of living to be 30 y.o.

29 - 30 : 1 - 0.001477 = 0.998523

30 - 31 : 1 - 0.001503 = 0.998497