You have two equations.
since the second is already isolated, sub in x-4 for every y in equation 1 so that
![x^{2} - 4 [(x-4)^{2}] =16 ](https://tex.z-dn.net/?f=%20x%5E%7B2%7D%20-%204%20%5B%28x-4%29%5E%7B2%7D%5D%20%3D16%0A%20)
expand, collect like terms, factor to find x, then plug x value back into original equation to find y
Answer:
37 ft
Step-by-step explanation:
The ladder forms a right triangle as it elan's against the wall of the boat house.
Thus, the length of the ladder can be determined using Pythagorean theorem.
c² = a² + b²
c = length of ladder
a = 35 ft
b = 12 ft
Plug in the values
c² = 35² + 12²
c² = 1,225 + 144
c² = 1,369
c = √1,369
c = 37
Therefore, to reach the roof of the boathouse, the length of the ladder = 37 ft
Answer:
11
Step-by-step explanation:
Since angle 11 is next to angle 12, and they should add up to 180 degrees, which makes them supplementary angles.
Answer:
3
Step-by-step explanation:
3 is the Smallest Odd Prime Number.
1 is the smallest one digit odd number.
Answer:
Step-by-step explanation:
Denote this equivalence relation by 
(i.e, 
if and only if 
), is clear that 
is an equivalence relation since 
is. Now, by definition we have that ![[a]=\{b\sim a \mid f(a)=f(b) \}=f^{-1}(a)](https://tex.z-dn.net/?f=%5Ba%5D%3D%5C%7Bb%5Csim%20a%20%5Cmid%20f%28a%29%3Df%28b%29%20%5C%7D%3Df%5E%7B-1%7D%28a%29)
.
