Ive never seen a question lie this before
Since the first figure is a square I guess it stand for x^2
then we have -2x + 3x = x ( the 2 stets of rectangles)
and finally -3 + 1 = - 2
So i am presuming its x^2 + x - 2
Option b
Im not sure though
Answer:
528 cm²
Step-by-step explanation:
First I would calculate the area of the side rectangles:
20 x 9 = 180 cm²
There are two identical rectangles on both sides so i would x2
180 x 2 = 360 cm²
The area of the middle rectangle:
6 x 20 = 120 cm²
The area of the triangles:
Area of a triangle = (Base x Height)/2
8 x 6 = 48
48 ÷ 2 = 24
There are two identical triangles on the bottom and the top so x2
24 x 2 = 48
Now add all the values up:
360 + 120 + 48 = 528 cm²
I hope this helps!
Answer:
Step-by-step explanation:
As a fraction: 250/100
Dividing both the numerator and the denominator with common factor 50
5/2
And changing it to a mixed fraction it becomes 2 whole number 1/2
As a decimal it is 2.50
Answer:
x=64
Step-by-step explanation:
* change equivalent to to = *
now we have x² - 16x + x = (x-8)²
step 1 simplify both sides
(x)²=x²
-8x*2=16x
8=64
-16x + x = 15x
now we have x² -15x = x² - 16x + 64
step 2 subtract x² from each side
x² -x² = 0
x² - x² cancels out
now we have -15x = -16x + 64
step 3 add 16x to each side
-15x + 16x = x
-16x + 16x cancels out
we're left with x = 64
Answer:
its the second one y=870x-5300
Step-by-step explanation:
