Answer:
x≈ −1.21039852,1.25324234 assuming was the exponent to 15x
Answer:
(a) 7.5 seconds
(b) The horizontal distance the package travel during its descent is 1737.8 ft
Step-by-step explanation:
(a) The given function for the height of the object is s = -16·t² + v₀·t + s₀
The initial height of the object s₀ = 900 feet
The initial vertical velocity of the object v₀ = 0 m/s
The time it takes the package to strike the ground is found as follows;
0 = -16·t² + 0×t + 900
900 = 16·t²
t² = 900/16 = 62.25
t = √62.25 = 7.5 seconds
(b) Given that the horizontal velocity of the package is given as 158 miles/hour, we have
158 miles/hour = 231.7126 ft/s
The horizontal distance the package covers in the 7.5 second of vertical flight = 231.7126 ft/s × 7.5 s = 1737.8445 feet = 1737.8 ft to one decimal place
The horizontal distance the package travel during its descent = 1737.8 ft.
Answer:
x^2 -2
Step-by-step explanation:
f(x) = x^2 -3
g(x) = x+1
Put f(x) in for x in the function g(x)
g(f(x)) = f(x) +1 = x^2 -3+1 = x^2 -2
-3x-6/x+2
-3(x+2)/x+2
-3 is the answer
(-7,11) so D is the answer