How would I solve this

Mathematics

2 answers:

kondor19780726 [428]3 years ago

5 0

The formula of the area of a rectangle is A = LW
You have been given the length and width as (x+1) and (x+3). You've also been given the area, 80 ft2

So we can substitute what we have in the formula as follows

80 = (x+1)(x+3)

If we FOIL the right side of the equation, we have

80 = x2+4x+3

Let's bring the 80 to the right side of the equation so that we have an equation equal to 0.

x2+4x-77 = 0

We can factor this as
(x+11)(x-7) = 0

So,
x+11 = 0 This gives us x=-11 which would yield dimensions of -10 and -8. Since we can't have negative dimensions, let's check the other factor.
x-7=0, giving us x=7
So the dimensions of the porch are
(7+1) and (7+3)

The porch is 8 x 10

Feliz [49]3 years ago

3 0

What are you solving for???

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When a line changes position from one point to another, the movement is referred to as transition.

Bobby does not have enough information to make a valid conclusion.

The movements of the lines are given as:

Line 1: 3 units up and 8 units right

Line 2: 8 units down and 3 units right

The given information only describes the movement of both lines, but does not give details about the initial relationship between the lines.

Hence, no valid conclusion can be made with the given information.