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3 years ago

What is the domain of f?

Mathematics

2 answers:

DiKsa [7]3 years ago

8 0

The domain is just all the x-coordinates

Luba_88 [7]3 years ago

3 0

I think you forgot to take a picture of the question but the domain is the X In coordinates. For example if you have coordinates (4,5) (7,9) the domain in these two coordinates example would be : 4 and 7

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In a survey of 100 out-patients who reported at a hospital on a day, it was found that 70 complained of fever, 50 had stomach tr

cluponka [151]

Answer:

3 patients had all the three complaints

Step-by-step explanation:

Let U be the set of patients who reported at the hospital on that day

Let F be the set of patients who complained of fever

Let S be the set of patients who had stomach troubles

Let I be the set of injured patients

Then the given data can be written as:

n(U) = n(F∪S∪I) = 100
n(F) = 70
n(S) = 50
n(I) = 30
n(F∩S) + n(S∩I) + n(I∩F) - 3×n(F∩S∩I) = 44

n(F∩S∩I) = ?

Using the formula for the cardinal number of union of three sets:

n(F∪S∪I) = n(F) + n(S) + n(I) - n(F∩S) - n(S∩I) - n(I∩F) + n(F∩S∩I)

100 = 70 + 50 + 30 - (44 + 3×n(F∩S∩I)) + n(F∩S∩I)

100 = 150 - 44 - 2×n(F∩S∩I)

2×n(F∩S∩I) = 106 - 100 = 6

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3 years ago

Mags is 2 years older than vector. Which equation will help you find mags age (m) if you know vectors age (v)

Ostrovityanka [42]

Answer:

m=v+2

Step-by-step explanation:

So Mags (m) is older than vector (v) so matter what m is just v+2 the two is how much older mags is.

Hope this helps, have a good day :)

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3 years ago

Use the Special Right Triangle to evaluate sin 60°, cos 60° and tan 60°. Your answers should be exact (not a decimal).

BigorU [14]

Sin 60 = $\sqrt{3}$ /2
cos 60 = 1/2
tan 60 = $\sqrt{3}$

The answer to your question is D. I hope that this is the answer that you were looking for and it has helped you.

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3 years ago

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5.13570<br><img src="https://tex.z-dn.net/?f=5.1%20%5Cdiv%2035.7" id="TexFormula1" title="5.1 \div 35.7" alt="5.1 \div 35.7" ali

anzhelika [568]

0.1428 is your answer

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4 years ago

Can a vector have nonzero magnitude if a component is zero? if no, why not? if yes, give an example.

dangina [55]

Can a vector have nonzero magnitude if a component is zero?

Yes, a vector can have zero components along a line and still have a non-zero magnitude.

Example: Consider a two dimensional vector 2i + 0j. This vector has zero components along a line lying along the Y - axis and a non- zero component along the X - axis. The magnitude of the vector is also non - zero.

Now, magnitude of 2i + 0j = $\sqrt2^2+\sqrt0^2$ =2

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2 years ago