Hello There!
Length = 4
Width = 2
Perimeter = 4 + 4 + 2 + 2 = 12
Perimeter is 12 square cm.
Hope This Helps You!
Good Luck :)
- Hannah ❤
Since the angles are complementary, they add to 90°. So we can write the equation:
x represents the first angle, and 4x represents the second
x+4x=90
5x=90
x=18
So the first angle is 18° and the second is 72° (18*4)
Hope this helps
Answer:
8x^4+9x^3+4x-1
Step-by-step explanation:
(6x^3 – 5x^2 + 3x – 5) + (8x^4 + 3x^3 + 5x^2 + x + 4)
Group like terms
8x^4+6x^3+3x^3-5x^2+5x^2+3x+x-5+4
8x^4+9x^3+4x-1
164+56−(3+4+1)
=220−(3+4+1)
=220−(7+1)
=220−8
=212
