223k views
1 vote
A rectangle garden covers 46 yards to the second power the length is three yd longer than the width. find the length and the width round to the nearest 10th

User Shinvu
by
8.0k points

1 Answer

6 votes

Answer:

Width ≈ 6.1 yards

Length ≈ 9.1 yards

Explanation:

Let's use "x" to represent the width of the rectangle.

According to the problem, the length is 3 yards longer than the width, so the length can be represented as "x + 3".

We know that the area of the rectangle is 46 yards squared, so we can set up the equation:

x(x + 3) = 46

Expanding the left side of the equation:

x^2 + 3x = 46

Moving all terms to one side:

x^2 + 3x - 46 = 0

Now we can use the quadratic formula to solve for x:

x = (-b ± sqrt(b^2 - 4ac)) / 2a

where a = 1, b = 3, and c = -46. Plugging in these values, we get:

x = (-3 ± sqrt(3^2 - 4(1)(-46))) / 2(1)

x = (-3 ± sqrt(193)) / 2

We can discard the negative root because the width of the rectangle cannot be negative. So:

x = (-3 + sqrt(193)) / 2

x ≈ 6.1

So the width of the rectangle is approximately 6.1 yards.

The length can be found by adding 3 yards to the width:

x + 3 ≈ 9.1

So the length of the rectangle is approximately 9.1 yards.

Rounding to the nearest tenth, we have:

Width ≈ 6.1 yards

Length ≈ 9.1 yards

User Tony Wickham
by
8.3k points

No related questions found