3 years ago

Expand the expression (5x-y)^3 using the binomial theorem

Mathematics

2 answers:

nydimaria [60]3 years ago

6 0

The answer to your question is : 15x - 3y

Flura [38]3 years ago

6 0

If you expand the expression its

(5x-y)(5x-y)(5x-y)

which then simplified is

125x^3-75x^2y+15xy^2-y^3

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Suppose that the functions f and g are defined for all real numbers x as follows.

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Hey there !

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3 years ago

A total of 202 tickets were sold for a theatre showing. If child tickets cost $6 and adult tickets cost $10, how many tickets of

polet [3.4K]

Answer:

167 adult tickets were sold

35 children tickets were sold

Step-by-step explanation:

Let the number of adult tickets be x

Let the number of children tickets be y

Total number of each ticket sold;

x + y = 202 equation 1

Total cost of the tickets

10x + 6y = 1708 equation 2

Let

x= 202 - y equation 3

Substitute 3 into 2

10(202 - y) + y = 1708

2020 - 10y + y = 1708

-9y = 1708 - 2020

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y= 35

Substitute y =35 into 1

x + 35 =202

x= 202 - 35

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Therefore;

167 adult tickets were sold

35 children tickets were sold

3 0

3 years ago

<img src="https://tex.z-dn.net/?f=g%28x%29%20%3D%20%20%5Cfrac%7B3%7D%7Bx%20-%204%7D%20" id="TexFormula1" title="g(x) = \frac{3}

liberstina [14]

You are right about the domain

it is all real values of x except 4

So about the range we must make x subject of the formular so we know the values of y in which g(x) is defined

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Answer:

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