1 year ago

Help I don't get it! how do I figure out what to do

Mathematics

1 answer:

Neporo4naja [7]1 year ago

3 0

Answer:

Choice A

Step-by-step explanation:

10+2=12 2+2=4

10+4=14 2+4=6

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Y varies inversely with the square of x and y=2 when x=6. Find y when x=2.

Olin [163]

Y=6 because they are inverse of each other so opposite or flipped

5 0

4 years ago

Can someone help please!

ExtremeBDS [4]

Answer:

Step-by-step explanation:

i have seen this before so yea

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3 years ago

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What is the equation in point−slope form of the line passing through (−2, −5) and (2, 3)?

natali 33 [55]

The slope of the line is 2 = m. We can choose a coordinate pair and then plug that into the point-slope formula which is...

y - y1 = m(x - x1)

y - 3 = 2(x - 2)

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4 years ago

A farmer is constructing a rectangular pen with one additional fence across its width. Find the maximum area that can be enclose

konstantin123 [22]

The maximum area of the pen is the highest area the pen can have

The maximum area is 16200 square yards

Let the dimension be x and y.

So, the perimeter is given as:

$\mathbf{P = 360}$

Because it has one additional fence, the perimeter is calculated as:

$\mathbf{2x + y = 360}$

Make y the subject

$\mathbf{y = 360 - 2x}$

The area is calculated as:

$\mathbf{A = xy}$

Substitute $\mathbf{y = 360 - 2x}$

$\mathbf{A = x(360 -2x)}$

Expand

$\mathbf{A = 360x -2x^2}$

Differentiate

$\mathbf{A' = 360 -4x}$

Set to 0

$\mathbf{360 -4x = 0}$

Rewrite as:

$\mathbf{4x = 360}$

Divide both sides by 4

$\mathbf{x = 90}$

Substitute 90 for x in $\mathbf{A = 360x -2x^2}$

$\mathbf{A = 360 \times 90 - 2 \times 90^2}$

$\mathbf{A = 16200}$

Hence, the maximum area is 16200 square yards