Okay, just remember with signs, a positive and a negative equals a negative.
28.43-13.17+2.07= 17.33
I hope this helped!
Brainliest answer is always appreciated!
Answer:
use a calulator it can help
Step-by-step explanation:
.
B = 2 + 2H
A = 20 ft^2
H = H
Since the Area of a Triangle is Base * Height then the formula should be:
A = BH
20 = H(2+2H)
20 = 2H^2 + 2H
0 = 2H^2 + 2H - 20
Find the zeros of the quadratic equation through substituting the values of a,b, and c. You will get the zeros of x = 2.7 and -3.7. The only thing that would make sense is you use the x=2.7 because there are no negative heights.
Since b = 2h+2
b= 2(2.7) + 2
b= 5.4 + 2
b=7.4
I don't know where you got 4 and 10, but what I got is different.
-10x+7x=-3x
3x+1=37
(-1) (-1)
3x=36
(Divide by 3 each side)
3x divided by 3= x
36 divided by 3 = 6
Answer: x=6
Height = 12 cm
Base/width —> half of height —> 12/2 = 6 cm
Area = length x width
Area —> 12x6 = 72
The sticker covers 72 cm of the notebook.
