Given:
Sides of a rectangle are 9.5x+14.3y cm and 11.7x+22.8y cm.
To find:
The perimeter of the cardboard in terms of x and y.
Solution:
We know that, perimeter of a rectangle is
Now,
![Perimeter=2[(9.5x+14.3y) +(11.7x+22.8y)]](https://tex.z-dn.net/?f=Perimeter%3D2%5B%289.5x%2B14.3y%29%20%2B%2811.7x%2B22.8y%29%5D)
On combining like terms, we get
![Perimeter=2[(9.5x+11.7x) +(14.3y+22.8y)]](https://tex.z-dn.net/?f=Perimeter%3D2%5B%289.5x%2B11.7x%29%20%2B%2814.3y%2B22.8y%29%5D)
![Perimeter=2[21.2x +37.1y]](https://tex.z-dn.net/?f=Perimeter%3D2%5B21.2x%20%2B37.1y%5D)
using distributive property, we get
Therefore, the perimeter of the cardboard in terms of x and y is 42.4x+74.2y cm.
1 1/2
3/2 is equal to 1 1/2 because 2 goes into 3 once with 1 left over.
Answer:
False
Step-by-step explanation:
In a rhombus, the diagonals are always perpendicular.
Answer:
- 1/2
Step-by-step explanation:
y2 - y1 / x2 - x1
0 - 3 / 4 - (-2)
-3 / 6
= -1/2
Answer:
C
Step-by-step explanation:
So we have the expression:
To multiply, use the distributive property. Multiply (y+1) to each term on the left:
Distribute the variables:
Rearrange them to combine like terms:
The correct answer is C.
Edit: Typo
