Answer:
x = 5±2√7
Step-by-step explanation:
This quadratic cannot be factorised via the factorisation method, so we use the quadratic formula :
x = 
or x = 
(The reason I did 2 equations is because brainliest does not allow me to do the ± in the equation insert thing )
x = 
or x = 
x = 
or x= 
x = 
or x = 
x = 
or x = 
Hope this helped and brainliest please
Step-by-step explanation:
Rearrange the terms by writing
3y = -2x + 6 ---> y = (-2/3)x + 2
The slope of this equation is m = -2/3
The brand of cartridge which is the best buy us the brand with the lowest unit price which is brand A.
<h3>Unit price</h3>
Brand A
Cost = $20
pages = 200
Unit price = $20/200
= $0.1 per page
Brand B:
Cost = $25
Pages = 125
Unit price = $25/125
= $0.2 per page
Brand C:
Cost = $30
Pages = 150
Unit price = $30 / 150
= $0.2 per page
Brand D:
Cost = $35
Pages = 250
Unit price = $35 / 250
= $0.14 per page
Therefore, the brand of cartridge which is the best buy us the brand with the lowest unit price which is brand A.
Learn more about unit price:
brainly.com/question/14286952
#SPJ1
Answer:
f
Step-by-step explanation:
Answer:
208 ft^3
Step-by-step explanation:
Let the plane through the 4 ft X 4ft square at the top of the figure break the figure into 2 boxes, one has dimensions (8-7) by 3 by 4 = 1ft X 3ft X 4ft, and the other has dimensions 7 by 7 by 4 = 7ft X 7ft X 4ft.
They have volumes of (1)(3)(4) = 12 ft^3, and (7)(7)(4) = 196 ft^3, respectively, so the total volume = 12 + 196 = 208 ft^3, the answer.
