X^2-6xy+8y^2 I believe is the answer, I hope this helps!
Answer:
First, you would multiply 9 x 2 that would give you 18. Then you would add 5 and that would give you 23. The answer would be 23
Step-by-step explanation:
Answer: 42.5 m
Step-by-step explanation:
Split the figure into a rectangle and a triangle.
Find the areas of the rectangle and the triangle seperately and add them together.
Rectangle: 7 x 5 = 35
Triangle: 5 x 3/2 = 7.5
35+7.5= 42.5m
The surface area of the pencil is the amount of space it covers
The surface area of the pencil is 61 square centimeters
<h3>How to determine the surface area?</h3>
The given parameters are:
H = 20 cm
L = 0.5 cm
The surface area (SA) is then calculated as:
SA = 6LH + 3
L^2
This gives
SA = 6 * 0.5 * 20 + 3
* 0.5^2
Evaluate the sum
SA = 61
Hence, the surface area of the pencil is 61 square centimeters
Read more about surface area at:
brainly.com/question/6613758
ANSWER

<u>EXPLANATION</u>
One way is to make x the subject in one equation and substitute into the other.



The second equation is

Let us put equation 1 in 2



Multiplying through by 2 gives;



