Answer:
D.
x = 3, y = -7
Step-by-step explanation:
Answer:
the equations that is equivalent to y= 2x + 1
-2x + y = 1
the solution is c
Step-by-step explanation:
Step-by-step explanation:
work is shown and pictured
Answer:
x=8.06
Step-by-step explanation:
Since it's a right triangle, we can use Pythagorean Theorem, which is a^2+b^2=c^2. The hypotenuse, or longest side is always C, so in this case we're going to do C^2-a^2=b^2. 9^2=81, 4^2=16, 81-16=65, square root of 65 is 8.06, so x=8.06