Step-by-step explanation:
4x+5x=180 (allied angles)
9x=180
x=180/9
x=20
I hope this helps you
Pythagorean
hypothenus ^2=base^2+height ^2
hypothenus ^2=15^2+20^2
hypothenus ^2=225+400
hypothenus ^2=625
hypothenus ^2=25
Answer:
20 is the answer.
Step-by-step explanation:
Substitute 3 in for x and -2 in for y.
4(3) - (-2 to the third power)
12 - -8 = 12 + 8
The answer is 20
Please mark brainliest as that would really help out :3
Answer:
Step-by-step explanation:
It's a perfect square.
It factors into (3g - 5h)^2
or (3g - 5h)(3g - 5h)
Make sure it is correctly factored.
3g*3g = 9g^2
3g * - 5h = - 15gh
-5h*3g = - 15gh
5h*5h = 25h^2
These four terms add to 9g^2 - 15gh - 15gh + 25h^2 = 9g^2 - 30gh + 25h^2 which is exactly what you started with.