I don’t know the answer to this question, could someone help me

Mathematics

1 answer:

Veronika [31]3 years ago

7 0

we know that

domain is all possible values of x for which any function is defined

so, here domain will be all possible values of x fro which y is defined

so, we will find minimum and maximum value of x

we can see that

x starts from 0

so, minimum value is x=0

and it goes to right upto infinity

so, domain will be

$x\geq 0$ ...............Answer

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The variable y varies jointly with x and w when y = - 42, x = 2, and w = -3.

Andrei [34K]

Answer:

k = 7

Step-by-step explanation:

given y varies jointly with x and w then the equation relating them is

y = kxw ← k is the constant of variation

to find k use the condition when y = - 42, x = 2 and w = - 3 , then

- 42 = k × 2 × - 3

- 42 = - 6k ( divide both sides by - 6 )

7 = k

constant of variation is k = 7

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2 years ago

I'm not really sure what to do.

lukranit [14]

I’m not sure if this is right but this looks a bit like chemistry so maybe try to get from minutes to seconds as it becomes an ‘S’ which I’m assuming is seconds? so basically try to do dimensional analysis with it and see if that works. Don’t forget to square it though, that’ll throw you off.

4 0

4 years ago

1.(02.01 LC)

seraphim [82]

Answer:

x = 3

Step-by-step explanation:

8x - 12 = 4x

subtract 4 from each side

4x - 12 = 0

add 12 to each side

4x = 12