Answer:
- D. 2x² + 10xy + 8x² because (2x+ 2y) by (x + 4y)
Step-by-step explanation:
Let's mark the sides of the big square as x and a small square as y
<em>See attached picture below</em>
<u>Then we will have the sides of the rectangle:</u>
- x + x + y + y = 2x + 2y
- and
- x + y + y + y + y = x + 4y
<u>The area of the figure is:</u>
- A = lw
- A = (2x+ 2y)(x + 4y)
- = 2x² + 8xy + 2xy + 8y²
- = 2x² + 10xy + 8x²
Correct option is D.
If I understood your post correctly, then this will be the equation we evaluate: (6-2)!
We can simplify this to: 4!
4! = 4 x 3 x 2 x 1 = 24
Answer:
x = 78
Step-by-step explanation:
We can find angle y
D + B + y = 180 since the sum of the angles of a triangle are 180
31+47+ y =180
78+y = 180
y = 180 - 78
y = 102
x+y = 180 since they form a straight line
x + 102 = 180
x = 180-102
x = 78
Answer: 12.57
Step-by-step explanation: