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3 years ago

I have 3 slots left and 3 answers left. Fill them in pls and u get a brainlist :)

Mathematics

1 answer:

gulaghasi [49]3 years ago

4 0

Answer:

Water (one oxygen atom bonded to two hydrogen atoms)

Step-by-step explanation:

The chemical formula for water is H²O. The H is the chemical symbol for Hydrogen and O is the chemical symbol for Oxygen. The 2 is a subscript which represents how many atoms of a certain element are in a molecule. In this case, the subscript ² comes after H, indicating that there are two Hydrogen atoms inside water. There is no subscript after O, meaning there is only one Oxygen atom. Therefore, there are two Hydrogen atoms and one Oxygen atom that bond to form water. Hope this helps :))

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The number 0.86421... is an example of what number

Eduardwww [97]

I would go with an <span>irrational number because the 0.86421 is a real number and it can't be expressed as a fraction or ratio </span>

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3 years ago

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Romashka [77]

C all triangles are different

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3 years ago

Which graph represent f of x equals square root of the quantity x plus 2 end quantity minus 3? The graph shows a curve with an e

Svetach [21]

The graph of the function:

$f(x) = \sqrt{x + 2} - 3$

Is the last graph (bottom graph of the second image).

<h3>Which graph represents the given function?</h3>

Here we have the function:

$f(x) = \sqrt{x + 2} - 3$

Remember that the argument of a square root must be zero or larger, then the minimum of the domain is the value of x such that:

x + 2 = 0

x = -2

Then the function starts at:

$f(-2) = \sqrt{-2 + 2} - 3 = -3$

Then the graph should start at (-3, 2).

We can also identify another point by evaluating in x = 2.

$f(2) = \sqrt{2 + 2} - 3 =2 - 3 = -1$

So the function also passes through (2, - 1).

Notice that the only graph that contains these two points is the last graph (the bottom graph on the second image), so that is the correct option.

If you want to learn more about square roots:

brainly.com/question/98314

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2 years ago

Please select the word from the list that best fits the definition

blagie [28]

Answer: the answer is D mean

Step-by-step explanation: because mean is when you add them all up and divide it by the number. hope it helps :)

3 0

3 years ago

At noon, ship A is 170 km west of ship B. Ship A is sailing east at 40 km/h and ship B is sailing north at 20 km/h. How fast is

Hatshy [7]

40 times 4hours=160 km east for ship A Ship B goes 80 km north.
170-160=10 10^2=100 80^2=6400 6400+100=6500 square root 6500 and you get the distance they are away from each other at four o'clock which is about 80.622 km away.

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4 years ago