2 years ago

(2k-1)² what the answer pls.

Chemistry

1 answer:

Sedaia [141]2 years ago

7 0

Answer:

4k^2-4k+1

Explanation:

Plx give brainlyest

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You are on the Titanic and want to find something that will float because you didn't

damaskus [11]

Find volume of pillow

L=78cm

B=55cm

H=25cm

$\\ \bull\tt\longrightarrow V=LBH$

$\\ \bull\tt\longrightarrow V=25(78)(55)$

$\\ \bull\tt\longrightarrow V=107250cm^3$

$\\ \bull\tt\longrightarrow V=10.72m^3$

Now

Mass=5.5kg

$\\ \bull\tt\longrightarrow Density=\dfrac{Mass}{Volume}$

$\\ \bull\tt\longrightarrow Density=\dfrac{5.5}{10.72}$

$\\ \bull\tt\longrightarrow Density=0.5kg/m^3$

Density of water=1000kg/m^3

As it is less than density of water it will float on water

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2 years ago

What will happen if a peeled banana is put on a hotplate? Will it undergo a physical or a chemical change?

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2 years ago

Carla is using a fertilizer that contains nitric acid.How can nitric acid be classified

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3 years ago

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Find the mass of 250.00 ml of benzene. The density of benzene is 0.8765 g/ml. (Please show how you got this answer)

Ivenika [448]

Density is Mass per Volume

0,8765 g/ml = Mass of Benzene / 250 ml

Mass of Benzene = 219,125 gram

so 250 ml of benzene is equal to 219,125 gram

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3 years ago

(2k-1)² what the answer pls.​

(2k-1)² what the answer pls.