Step-by-step explanation:
area=length x width
91=(x+2)(2x+3)
91=x^2+5x+6
x^2+5x-85=0
x=14.2 orx=-24.1
Since x is the length, then x+7 has to be the width.
The area of a rectangle can be found via the formula :
A = length * width
So if we replace the area with the given number (170) and the length, and width, with what we assumed, we get..
170 = x * (x+7)
[which is.. ]
170 = x^2 +7x
0 = x^2 +7x - 170
And that is the answer.
Answer:
Each student earned $16.27.
Step-by-step explanation:
48.81 / 3 = 16.27
Distance formula sqrt((x2-x1)^2 + (y2-y1)^2))
Sqrt((4-2)^2+(-7+3)^2)
Sqrt(2^2+4^2)
Sqrt(4+16)
Sqrt(20)
2sqrt5.
The second choice is the correct answer.
The answer is 6x
You have to add 12 and 3 which is 15 then you have to do 15 minus 9 then it is 6 then you will put the x there because it had 2 x and 1y so 6x is the answer
