THIS IS EASY. I don't have a calculator on me so bare with me.
1.) 7x - 9 = -4x + 90
7x +9. = -4x. + 9
7x. = -4x. 99
+4x = +4x. + 99
11× = 99
÷ 11. ÷ 11
X = 9
U can solve the rest. Are you serious?
The equation of any straight line, called a linear equation, can be written as: y = mx + b, where m is the slope of the line and b is the y-intercept. The y-intercept of this line is the value of y at the point where the line crosses the y axis.
Well, since it is an isosceles triangle two of the sides are going to have to be equal in length, and since the hypotenuse of a triangle HAS to be greater than it's sides, then the two congruent sides are the ones that measure 12 feet. 12+12+16=40 So, Ramone will need 40 feet of fencing.
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