2(1^2-1)+3 what is the simplified form

Mathematics

1 answer:

Dennis_Churaev [7]2 years ago

5 0

Answer:

2^2+1

Step-by-step explanation:

2(1^2 - 1) +3

2^2 -2 +3

2^2 + 1

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Keely makes meringues by mixing egg whites with sugar.

Lubov Fominskaja [6]

Answer:

Yes, she will have enough eggs.

Step-by-step explanation:

It's an easy question if we carefully think about it.

Firstly we find the total number of eggs:

- 9 boxes x 15 eggs = 135 eggs

Secondly, the weight of the useful egg whites:

- 135 eggs x 40 grams = 5400 grams of egg whites

Thirdly we divide the egg whites weight by the sugar weight

- 5400/8000 = 0.675 which is larger than the minimum ratio, 3/5 = 0.6.

This means that Keely will have enough eggs to use the whole of the sugar for meringues.

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1 year ago

A classroom contains an equal number of boys and girls. If 5 girls leave, twice as many boys and girls remain. What was the orig

lorasvet [3.4K]

The answer is 10 because 5 x 2 is 10

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3 years ago

Please help. I don't understand

Andreas93 [3]

Answer:

Length of third side is: $\mathbf{8m^3-4m^2+3m}$

Step-by-step explanation:

Perimeter of triangle = $18m^3+2m^2-m$

Length of side 1= $5m^3+3m^2-2m$

Length of side 2= $5m^3+3m^2-2m$

We need to find length of third side.

The formula used is: $Perimeter \:of\:triangle=Sum\:of\:all\:sides$

Putting values and finding length of third side.

$Perimeter \:of\:triangle=Sum\:of\:all\:sides\\18m^3+2m^2-m=5m^3+3m^2-2m+5m^3+3m^2-2m+Length\:of\:3rd\:side\\18m^3+2m^2-m=5m^3+5m^3+3m^2+3m^2-2m-2m+Length\:of\:3rd\:side\\18m^3+2m^2-m=10m^3+6m^2-4m+Length\:of\:3rd\:side\\Length\:of\:3rd\:side=18m^3+2m^2-m-(10m^3+6m^2-4m)\\Length\:of\:3rd\:side=18m^3+2m^2-m-10m^3-6m^2+4m\\Length\:of\:3rd\:side=18m^3-10m^3+2m^2-6m^2-m+4m\\Length\:of\:3rd\:side=8m^3-4m^2+3m$