<span>D) Two lines that intersect at 90 degree angles
hope this helps</span>
Answer:
(x, y) = (-4, 15)
Step-by-step explanation:
The two equations have the same coefficient for y, so you can eliminate y by subtracting one equation from the other. Here the x coefficient is largest for the first equation, so it will work best to subtract the second equation.
(3x +y) -(2x +y) = (3) -(7)
x = -4 . . . . . . . . simplify
Now, we can find y by substituting this value for x.
2(-4) +y = 7
y = 7 +8 = 15 . . . . . add 8 to both sides of the equation
The solution is (x, y) = (-4, 15).
Answer:
<h2>1/2⁷</h2>
Step-by-step explanation:
1/2 is multiplied by itself 7 times, thus an exponent of 7.
I'm always happy to help :)
The answer is x=-2
Solve for X by simplifying both sides of the equation, then isolating the variable.
The first answer, a(n) = 21n
