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Genrish500 [490]

3 years ago

10

Help me please yall are basically the best

1 answer:

egoroff_w [7]3 years ago

6 0

Answer:

4 i think

Step-by-step explanation:

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A rancher wants to fence in an area of 1500000 square feet in a rectangular field and then divide it in half with a fence down t

VLD [36.1K]

Answer:

6000 ft

Step-by-step explanation:

Let length of rectangular field=x

Breadth of rectangular field=y

Area of rectangular field= $1500000$ square ft

Area of rectangular field= $l\times b$

Area of rectangular field= $x\time y$

$1500000=xy$

$y=\frac{1500000}{x}$

Fencing used ,P(x)= $x+x+y+y+y=2x+3y$

Substitute the value of y

P(x)= $2x+3(\frac{1500000}{x})$

$P(x)=2x+\frac{4500000}{x}$

Differentiate w.r.t x

$P'(x)=2-\frac{4500000}{x^2}$

Using formula: $\frac{dx^n}{dx}=nx^{n-1}$

$P'(x)=0$

$2-\frac{4500000}{x^2}=0$

$\frac{4500000}{x^2}=2$

$x^2=\frac{4500000}{2}=2250000$

$x=\sqrt{2250000}=1500$

It is always positive because length is always positive.

Again differentiate w.r.t x

$P''(x)=\frac{9000000}{x^3}$

Substitute x=1500

$P''(1500)=\frac{9000000}{(1500)^3}>0$

Hence, fencing is minimum at x=1 500

Substitute x=1 500

$y=\frac{1500000}{1500}=1000$

Length of rectangular field=1500 ft

Breadth of rectangular field=1000 ft

Substitute the values

Shortest length of fence used= $2(1500)+3(1000)=6000 ft$

Hence, the shortest length of fence that the rancher can used=6000 ft

3 0

3 years ago

How many pounds per cup is shown in the proportional relationship below

Lilit [14]

4 pounds per 20 cups.

3 0

3 years ago

How many halves are in 6 wholes

GenaCL600 [577]

Answer:

12

Step-by-step explanation:

So, all you have to do is multiply 6 and 2.

In $\frac{1}{2}$ If you add $\frac{1}{2}$ + $\frac{1}{2}$ it equals 1 whole.

If 2 $\frac{1}{2}$ equals 1 whole. You multiply 6 by 2.

Hope this helped!

6 0

3 years ago

Read 2 more answers

draw a triangle on a graph sheet and its relation with scale factor 3 are those two figures are similar

docker41 [41]

njnjbugvcyfxgjhklkhjghxc bnmkjhgfdcvbnkkjhgfStep-by-step explanation:

5 0

2 years ago

I can’t find the answer tried twice probably easy for others

Sloan [31]

Answer: y=-x-2

Slope intercept form is written as y=mx+b, with m being the slope and b being the y intercept.

The slope is negative one. To find the slope, use the formula y1-y2/x1-x2. When you substitute, you may get -4-1/2-(-3). When you solve it, you get -5/5, or -1.

To find the y intercept, look where the line crosses the y axis (vertical line). In the graph, it crosses as -2. Substitute these numbers into the equation and you get y=-1x-2 which can be simplified to y=-x-2.

7 0

3 years ago