Answer:
3 metres
Step-by-step explanation:
Let the width of the pathway be x
Area: (9+2x)(4+2x)
36 + 8x + 18x + 4x²
4x² + 26x + 36
Increased area is 150:
4x² + 26x + 36 = 150
4x² + 26x - 114 = 0
2x² + 13x - 57 = 0
2x² + 19x - 6x - 57 = 0
x(2x + 19) - 3(2x + 19) = 0
(x - 3)(2x + 19) = 0
x = 3, x = -19/2
Answer:
3 gallons, 3 quarts
Step-by-step explanation:
There are four quarts in each gallon. 15 quarts is the same as 3(4) + 3 quarts, or 3 gallons, 3 quarts. Note that 16 quarts would be the equivalent of 4 gallons.
{-1,-3,-7,-9}
hope it helps
Answer:
Hey there!
Y=1/3x-7 is a linear function, the highest power is the 1st power
Hope this helps :)
Multiply the bracket by -2
2x+3y^2 -2(x-y2)
2x+3y^2-2x+2y^2
2x-2x+3y^2+2y^2- rearranging
3y^2+2y^2
5y^2
Answer: 5y^2