So you need the solve for x and y ?
from 8x-y = 10,
y = 8x -10
Plug this in other equation.
8x-10 = x^2 +12x + 30
Re-arrange and combine like terms,
x^2 +12x -8x +30+10 = 0
x^2 +4x +40 = 0
This does not have any real solutions.
So there are no real values of x and y satisfying the 2 equations.
Are you sure the question is correct? or if this question belongs to complex numbers topic?
Answer:
-1.5f - 17
Step-by-step explanation:
-2.3f + 0.8f - 12 - 5
= -1.5f - 17
Answer:
6.32
Step-by-step explanation:
To find the side length on a right angled triangle we follow The Pythagorean Theorem:

c being the hypothesis (longest side: the hypotenuse is always opposite the right angle)
so..

