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3 years ago

A drinking water project construct a cubical tank of 20m long what is the capacity of the tank

Mathematics

1 answer:

earnstyle [38]3 years ago

4 0

3.45 is the answer I think

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Which inequality correctly compares 2/5, 1/8, and 5/7

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Answer:

second or last

Step-by-step explanation:

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2 years ago

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using the slope formula find the slope of the line through the points (0,0) and (3,9) use pencil and paper explain how you can u

maxonik [38]

Answer:

9/3

Step-by-step explanation:

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Fanny Mendelssohn manages all the magazines and paperback books at a local grocery store. She prices many paperbacks to sell at

Tpy6a [65]

Answer:

The markup rate is 51% on the cost

Step-by-step explanation:

Price of book = 7.99

Cost to the store = 5.29

The markup rate is a term used to figure what percentage is added on to the cost of the item to find its selling price.

If we subtract cost from the price we will know how much is added to actual cost: 7.99 - 5.29 = 2.7

$Markup rate = \frac{added value}{cost}$

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3 0

4 years ago

Pls help me.<br>proove it ^

aivan3 [116]

Answer:

We verified that $a^3+b^3+c^3-3abc=\frac{a+b+c}{2}[(a-b)^2+(b-c)^2+(c-a)^2]$

Hence proved

Step-by-step explanation:

Given equation is $a^3+b^3+c^3-3abc=\frac{a+b+c}{2}[(a-b)^2+(b-c)^2+(c-a)^2]$

We have to prove that $a^3+b^3+c^3-3abc=\frac{a+b+c}{2}[(a-b)^2+(b-c)^2+(c-a)^2]$

That is to prove that LHS=RHS

Now taking RHS

$\frac{a+b+c}{2}[(a-b)^2+(b-c)^2+(c-a)^2]$

$=\frac{a+b+c}{2}[a^2-2ab+b^2+b^2-2bc+c^2+c^2-2ac+a^2]$ (using $(a-b)^2=a^2-2ab+b^2$ )

$=\frac{a+b+c}{2}[2a^2-2ab+2b^2-2bc+2c^2-2ac]$ (adding the like terms)

$=\frac{a+b+c}{2}[2a^2+2b^2+2c^2-2ab-2bc-2ac]$

$=\frac{a+b+c}{2}\times 2[a^2+b^2+c^2-ab-bc-ac]$

$=a+b+c[a^2+b^2+c^2-ab-bc-ac]$

Now multiply the each term to another each term in the factor

$=a^3+ab^2+ac^2-a^2b-abc-a^2c+ba62+b^3+bc^2-ab^2-b^2c-abc+ca^2+cb^2+c^3-abc-bc^2-ac^2]$

$=a^3+b^3+c^3-3abc$ (adding the like terms and other terms getting cancelled)

$=a^3+b^3+c^3-3abc$ =LHS

Therefore LHS=RHS

Therefore $a^3+b^3+c^3-3abc=\frac{a+b+c}{2}[(a-b)^2+(b-c)^2+(c-a)^2]$

Hence proved.

8 0

4 years ago

-1+(4+4x)=83 what does x equal

horrorfan [7]

Your answer will be x=20

7 0

3 years ago

A drinking water project construct a cubical tank of 20m long what is the capacity of the tank​

A drinking water project construct a cubical tank of 20m long what is the capacity of the tank