Answer:
The length is 9 units
Step-by-step explanation:
Let x = length
width = x-3
Area = 54 = l*w
54 = x * (x-3)
Distribute
54 = x^2 -3x
Subtract 54 from each side
54-54 = x^2 -3x-54
0 = x^2 -3x-54
Factor
What 2 number multiply to -54 and add to -3
-9 * 6 =54
-9+6 =-3
(x-9) (x+6) =0
Using the zero product property
x=9 x=-6
Since we cannot have negative length
x=9 units
The length is 9 units
Answer:4
Step-by-step explanation: First u - 2x from both sides to get x by it self.
leaving u with x+8
Next u divide both sides by 2 giving u the answer 4
To find the slope, we can apply the slope formula:
5 - (-1) / 5 - (-3)
6 / 8
Simplify
3/4
<h3>The slope is equal to 3/4. </h3>
the answer would be A rank
Subst. the given x and y values: 6(-1)^4 * (3)^3
6 * 27 = 162
Note that you MUST do the exponentiation first.
Also note that your post would be much clearer if you'd please use " ^ " to denote exponentiation: 6x^4 * y^3