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3 years ago

(3n³ - 5n + n²) - (-8n² + 3n³) please shawty please

Mathematics

2 answers:

elixir [45]3 years ago

8 0

Answer:

$9n^2 - 5n$

Step-by-step explanation:

$(3n^3 - 5n + n^2) - (-8n^2 + 3n^3)$

Lets open the brackets. Signs of all the terms in the bracket next to the minus sign will change.

$=> 3n^3 - 5n + n^2 + 8n^2 - 3n^3$

Now lets add/substract all the like terms with each other.

$=> 3n^3 - 3n^3 + n^2 + 8n^2 - 5n$

$=> 9n^2 - 5n \: \: or \:\: n(9n - 5)$

satela [25.4K]3 years ago

3 0

Answer:

Step-by-step explanation:

$3n^3-5n+n^2+8n^2-3n^3\\ \\ 9n^2-5n\\ \\ or\ n(9n-5)$

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A baker uses 2/3 of a canister of flour to bake 4 loaves of bread. How much flour does the baker use to bake 3 loaves of bread?

andrew11 [14]

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4 years ago

Kori bought 56 boxes of tiles from the home improvement store, which was StartFraction 4 over 7 EndFraction of the total number

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3 years ago

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Samantha ran on a fitness track for 20 min, and then walked for 15 min. Her running rate was 230 ft per minute faster than her

Mnenie [13.5K]

Answer:

560 ft/min

Step-by-step explanation:

Let r represent Samantha's running rate in feet per minute. Then r-230 is her walking rate. We can use the relation ...

distance = speed × time

to write an equation for the total distance Samantha went.

20r + 15(r -230) = 16150

35r - 3450 = 16150 . . . . eliminate parentheses, collect terms

35r = 19600 . . . . . . . . . . add 3450

r = 560 . . . . . . . . . . . . . . divide by the coefficient of r

Samantha ran 560 feet per minute.

5 0

3 years ago

Mr. Hanky has 5 rolls of butcher paper. If you roll out a whole roll the paper would

KiRa [710]

$8,262ft^2$ of a single roll . Mr. Hanky have 5 roll so Total Area = $8,262(5) = 41,310$ . So , $41,310ft^2$ paper does Mr. Hanky have

<u>Step-by-step explanation:</u>

Here we have , Mr. Hanky has 5 rolls of butcher paper. If you roll out a whole roll the paper would measure 510 yards long. If the paper is 1.8 yard wide .We need to find that how many total square feet of paper does Mr. Hanky have . Let's find out:

We know that when butcher paper will be unfolded it will be in form of a rectangle with dimensions as :

$Length = 510yards\\Breadth =1.8 yards$

So , Area of rectangle = $Length(Breadth)$

⇒ $Length(Breadth)$

⇒ $510(1.8)$

⇒ $918yards^2$

But , $1 yard = 3 feet$

⇒ $918(3ft)^2$

⇒ $8,262ft^2$

Therefore , $8,262ft^2$ of a single roll . Mr. Hanky have 5 roll so Total Area = $8,262(5) = 41,310$ . So , $41,310ft^2$ paper does Mr. Hanky have .

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4 years ago

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6^5x=20 round to the nearest ten-thousands

natulia [17]

Ok so 6^5
6x6x6x6x6 = 7776

7776x=20

Then we divide each side by 7776

7776x = 20
——— ———
7776 7776

X= 0.00257202

Estimate: 0

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3 years ago

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