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3 years ago

Will give BRAINLIEST for the first correct answer with their steps!

Mathematics

1 answer:

Pavel [41]3 years ago

6 0

Answer:

Width = 46 yards, Length=175 yards.

Step-by-step explanation:

Perimeter of rectangle = 2(length) +2(width)

We know that the length is 4width-9, so we can substitute that in for the length.

442= 2(4w-9)+2w, Next distribute

442=8w-18+2w, Now add like terms

442=10w-18, Move 18 to the other side

460=10w, solve for w

width= 46 yards.

Now we have 442=2(length)+2(46), subtract 92 to the left

350=2(length), divide by 2

Length= 175 yards.

Check your work with P=2(175)+w(46)

P=442 yards.

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PLEASE HELP L has y-intercept (0,5) and is perpendicular to the line with equation y=1/3x+1

marin [14]

Answer:

y=-3x+5

Explanation:

Given a line L such that:

• L has y-intercept (0,5); and

• L is perpendicular to the line with equation y=(1/3)x+1.

We want to find the equation of the line in the slope-intercept form.

The slope-intercept form of the equation of a straight line is given as:

$\begin{equation} y=mx+b\text{ where }\begin{cases}m={slope} \\ b={y-intercept}\end{cases} \end{equation}$

Comparing the given line with the form above:

$y=\frac{1}{3}x+1\implies Slope,m=\frac{1}{3}$

Next, we find the slope of the perpendicular line L.

• Two lines are perpendicular if the product of their slopes is -1.

Let the slope of L = m1.

Since L and y=(1/3)x+1 are perpendicular, therefore:

$\begin{gathered} m_1\times\frac{1}{3}=-1 \\ \implies Slope\text{ of line L}=-3 \end{gathered}$

The y-intercept of L is at (0,5), therefore:

$y-intercept,b=5$

Substitute the slope, m=-3, and y-intercept, b=5 into the slope-intercept form.

$\begin{gathered} y=mx+b \\ y=-3x+5 \end{gathered}$

The equation of line L is:

$y=-3x+5$

7 0

1 year ago

Which of the following equations vould u solve by first adding six. and divided by -3

Reil [10]

Which equations? I think you forgot to post a picture.

6 0

3 years ago

What is 444/88/145/140

disa [49]

First of all, I suppose that you are dividing, /.
Since, you don't have any other symbols here, i.e. + -*.
you work from left to right
444/88 is exactly 5.04545454545
5.04545454545/145 is exactly 0.03479623824
0.03479623824/140 is exactly 0.00024854455

so the answer to this is 0.00024854455

Hope this helps in some way ;)

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4 years ago

Relationship B has a greater rate than Relationship A. This graph represents Relationship A.

sveticcg [70]

I think the answer would be y=1.4x

4 0

3 years ago

Read 2 more answers

A cylinder has a radius of 7 cm and a height of 12 cm what is the surface area

xxTIMURxx [149]

Surface Area of Cylinder = 2πrh.

Radius, r = 7 cm, height = 12 cm.

Surface Area = 2*π*7* 12 = 168π cm²

π ≈ 3.14159

168π = 168*3.14159

Surface Area ≈ 527.79 cm²

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3 years ago