Answer:
<h2><em><u>-2x</u></em><em><u> </u></em><em><u>+</u></em><em><u> </u></em><em><u>7y</u></em></h2>
Step-by-step explanation:
<em><u>Given</u></em><em><u>, </u></em>
5x– 4у + 3y+8y – 7х
<em>[Bringing like terms together]</em>
= 5x - 7x - 4y + 3y + 8y
<em>[</em><em>Adding</em><em> </em><em>and</em><em> </em><em>subtracting</em><em> </em><em>the</em><em> </em><em>like</em><em> </em><em>terms</em><em>]</em>
= <em><u>- 2x + 7y (Ans)</u></em>
The slant height of the right circular cone will be 
<h3>What is slant height of cone? </h3>
The formula for the slant height of the cone is given as:
Here we have
r=2 units
h=4 units
By putting the values we will get
Hence the slant height of the right circular cone will be
To know more about Slant height follow
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The expression of the equation 4(x - 8) + y = 9(x - 2) in slope intercept form is; y = 5x + 14
<h3>How to write an equation in Slope Intercept form?</h3>
We want to express 4(x - 8) + y = 9(x - 2) in slope intercept form of y = mx + b.
Let us expand the equation to get;
4x - 32 + y = 9x - 18
Isolate y to get;
y = 9x - 4x - 18 + 32
y = 5x + 14
Thus;
Slope = 5
y - intercept = 14
x - intercept = -2.8
Read more about Slope Intercept Form at; brainly.com/question/1884491
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