-4²
Any number repeatedly multiplied by itself has an exponent. so (-4)(-4) has an exponent of 2 while (-4)(-4)(-4) would have an exponent of 3 and be written as -4³.
Also extra tip: Negative numbers multiplied by a negative number will always be positive.
Answer:
The additive inverse of 7 is −7, because 7 + (−7) = 0; The additive inverse of −0.3 is 0.3, because −0.3 + 0.3 = 0.
I hope I'm right and good luck! :)
Y = 2
y/4 + 2/3 = y/3 + 1/2
2/4 = 1/2
2/3 = 2/3
2/4 + 2/3 = 2/3 + 1/2
The answer is A because 25 percent is equivalent to .25
X + 3y = 7
x = -3y + 7
2x + 4y = 8
2(-3y + 7) + 4y = 8
-6y + 14 + 4y = 8
-2y = 8 - 14
-2y = - 6
y = -6/-2
y = 3
x + 3y = 7
x + 3(3) = 7
x + 9 = 7
x = 7 - 9
x = -2
solution is (-2,3)
