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2 years ago

X-4=4-x

Mathematics

1 answer:

Sidana [21]2 years ago

8 0

Answer:

4 and any number other than 4

Step-by-step explanation:

The first answer is 8. Solve the equation for x.

x-4 = 4-x

To get rid of the x on the right side, you must add x to both sides

(x) + x - 4 = (x) + 4 - x

On the right side x-x=0 so now you are left with 4 on the right side

On the left side x+x=2x so you have 2x-4 on the left side.

Now add 4 to both sides to get rid of the 4 on the left side.

(4) + 2x - 4 = (4) + 4

On the left side, 4-4=0 so you are left with 2x.

On the right side 4+4=8

So now you have 2x = 8. To finish solving for x, you now need to divide both sides by 2.

2x 8

---- = -----

2 2

On the left, 2 divided by 2 equals 1 so you are left with x.

On the right, 8 divided by 2 equals 4.

So now you know what X must equal 4 to make the equation TRUE.

Any number other than 4 will make the equation false.

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Ber [7]

Answer: 9 miles I think but I dont know where her house is exactly.

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3 years ago

A vertical right circular cylindrical tank has height h=8 feet high and diameter d=6 feet. It is full of kerosene weighing 50 po

Mariana [72]

Answer:

The work done to pump all of the kerosene from the tank to an outlet is $W=45238.9\: J$

Step-by-step explanation:

The work is defined by:

$W=\int dFdx$ (1)

The force here will be the product between the volume and the kerosene weighing, so we have :

$dF=\pi R^{2}dy*50$

This force will be in-lbs.

Where R is the radius (3 feet)

Then using (1), we have:

$W=\int \pi R^{2}dy*50(8-y)$

Here 8-y is a distance at some point of the tank. Now, to get the work done from the base to the top of the tank we will need to take integral from 0 to 8 feet.

$W=\int_{0}^{8} \pi 3^{2}dy*50(8-y)$

$W=450\pi \int_{0}^{8}dy(8-y)$

$W=450\pi(\int_{0}^{8} 8dy-\int_{0}^{8} ydy)$

$W=450\pi(8y|_{0}^{8} -\frac{y^{2}}{2}|_{0}^{8})$

$W=450\pi(8*8 -\frac{8^{2}}{2})$

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Therefore, the work done to pump all of the kerosene from the tank to an outlet is $W=45238.9\: J$

I hope it helps you!

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3 years ago

Find how long it takes for $500 to double if it is invested at 6% interest compounded monthly

EastWind [94]

Answer:

11.581 years

Step-by-step explanation:

Formula:

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3 years ago

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yaroslaw [1]

Answer:

(x-5)(x+6)=0

Step-by-step explanation:

hehe i doing the smae unit rn.

if a=1 (which it does do ac factoring)

you need two numbers that multiply to -30 and add to 1. those numbers are 5 and -6.

substitute 1x for -5x + 6x.

group the numbers into pairs and find their gcf's

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since the parenthesis r the same yo only need one. Now you need to put x and 6 in a parenthesis.

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3 years ago

Need Help Now!!

Alinara [238K]

Answer:

700 Feet?

Step-by-step explanation:

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7 0

3 years ago

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