Answer:
C. c^2=a^2+b^2-2abcos(90°)
Step-by-step explanation:
This is the law of cosine.
Answer:
x=2
Step-by-step explanation:
i would set up a system of equation using the pythagorean theorem:
1^2+x^2=z^2
4^2+x^2=y^2
Add up these equations to get:
17+2x^2=y^2+z^2
But notice that
y^2+z^2=5^2
So you can substitute
17+2x^2=25
2x^2=8
x^2=4
x=2
:)
Answer: We can't tell you
Step-by-step explanation: Test/quizes can't be posted here because it is a violation of the honor code
Answer:
I dont know because their is no graph angel O stop looking up the answer
Step-by-step explanation:
ITs not A
Answer:
Zero solutions.
Step-by-step explanation:
4x - 8 - 4x = 9
-8 = 9
No solutions.
