They left off the equation but we can know it's
y(t) = h₀ - g t² / 2
That's
y(t) = 144 - 16 t²
It hits the ground when
0 = 144 - 16 t²
16 t² = 144
t² = 144 / 16 = 9
t = 3 seconds
Answer: 3 seconds
Answer:3.42
Step-by-step explanation:to get the answer to a area equation you need to multiply the length by the width.
Answer:
Therefore the length of AB is 15 unit.
Step-by-step explanation:
Given:
A ≡ ( -7 , 4 ) ≡ (x₁ , y₁)
B ≡ ( 8 , 4 ) ≡ (x₂ , y₂)
C ≡ ( 8 , -3 )
D ≡ ( -7 , -3 )
To Find:
Length of AB =?
Solution:
Distance Formula between two points is given as
![l(AB) = \sqrt{((x_{2}-x_{1})^{2}+(y_{2}-y_{1})^{2} )}](https://tex.z-dn.net/?f=l%28AB%29%20%3D%20%5Csqrt%7B%28%28x_%7B2%7D-x_%7B1%7D%29%5E%7B2%7D%2B%28y_%7B2%7D-y_%7B1%7D%29%5E%7B2%7D%20%29%7D)
Substituting the values we get
![l(AB) = \sqrt{((8-(-7))^{2}+(4-4)^{2} )}\\l(AB) = \sqrt{((15))^{2}+(0)^{2} )}\\l(AB)=\sqrt{225}=15\ unit](https://tex.z-dn.net/?f=l%28AB%29%20%3D%20%5Csqrt%7B%28%288-%28-7%29%29%5E%7B2%7D%2B%284-4%29%5E%7B2%7D%20%29%7D%5C%5Cl%28AB%29%20%3D%20%5Csqrt%7B%28%2815%29%29%5E%7B2%7D%2B%280%29%5E%7B2%7D%20%29%7D%5C%5Cl%28AB%29%3D%5Csqrt%7B225%7D%3D15%5C%20unit)
Therefore the length of AB is 15 unit.
The Pythagorean Theorem is:
a^2 + b^2 = c^2
so you plug in the values you know (c is always the hypotenuse)
x^2 + 24^2 = 26^2
and the value of x=10
and yes the side lengths are a pythagorean triple