Using the side of the square find the area:
Area = 30^2 = 900 square feet.
The rectangles area is the same, 900 square feet.
Let the width = X
The length would be 2X + 70
Area = length x width
X * 2x+ 70 = 900
This expands to 2x^2 * 70x = 900
Use the quadratic formula to solve for x:
-70 +/- sqrt(70^2-4*2(-900))/2*2
X = 10
Width = x = 10 feet
Length = 2x + 70 = 90 feet
Answer:
21
Step-by-step explanation:
Try using this notation: a(n) and not an.
an=n^3-2n becomes a(n) = n^3 - 2n.
Then a(1) = 1^3 - 2(1) = 1 - 2 = -1
a(2) = 2^3 - 2(2) = 8 - 4 = 4
a(3) = 3^3 - 2(3) = 27 - 6 = 21
The answer is square root of 149 and in decimals form it would be 12.20
First we have to find the slope by dividing the difference of the ys over the xs
-6 - 3 = -9 (y)
2 - -4 = 6 (x)
the slope is -9/6 or -3/2
now we plug the slop along with a set of points into the slope intercept formula (y=mx+b) to find b (the y intercept)
-6 = 2(-3/2) + b
-6 = -3 + b
-3 = b
so the equation would be y = (-3/2)x - 3
Answer:
HI MATE,
Step-by-step explanation:
THE ANSWER IS 6
