Answer:
Step-by-step explanation:
y^2 -x^2=
y^2=9^2=81
x^2=2^2=4
81-4=77
Answer:
Step-by-step explanation:
Answer:
No
Step-by-step explanation:
No, it's not a function as it fails the vertical line test
Answer:
x=5
Step-by-step explanation:
Congruent triangles mean they have the same side lengths, so the equation here is x^2-7=4x-2. Then, solve the quadratic equation:
x^2-7=4x-2
x^2-4x-5=0
(x-5)(x+1)=0
x=5,-1
Since a side of a triangle can't be negative, the answer is 5.
it would be 6/10, then 2/5, and last is 1/2. hope this answered your question.
