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3 years ago

I need help !!! I don’t understand the problem

Mathematics

1 answer:

Pepsi [2]3 years ago

7 0

Answer:

It would be -81²x+81x-18= -9x+6

Step-by-step explanation:

When you work equation one you get 18. Then when you work equation two, you get -2/3=-0.666666667

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Solve each multi-step equation. Show your work. A-2+3= -2

Aleksandr [31]

Answer:

-3-2+3=-2

Step-by-step explanation:

A-2+3=-2

-3 -3

A-2=-5

+2 +2

A=-3

So, A-2+3=-2 is now -3-2+3=-2

8 0

2 years ago

What is that first step in solving the equation 2x-1=3?

ddd [48]

Answer:

subtract 1 then divide 2

Step-by-step explanation:

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2 years ago

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A contractor is in charge of hiring people for a construction project. The number of days it would take to complete the project

sweet-ann [11.9K]

Answer:

$\text{Domain of x}=[1,\infty), x \in Z^+$

Step-by-step explanation:

Given the function: $f(x)=\dfrac{280}{x},$ where:$

f(x) =number of days it would take to complete the project

x =number of full-time workers.

$\text{When x=0, }f(x)=\dfrac{280}{0}=$Undetermined\\\text{When x=1, }f(x)=\dfrac{280}{1}=$280 days\\\text{When x=280, }f(x)=\dfrac{280}{280}=$1 day\\\text{When x=560, }f(x)=\dfrac{280}{560}=$0.5 days$

The domain of a function is the complete set of possible values of the independent variable.

In this case, the independent variable is x, the number of full-time workers. We have shown that x cannot be zero as there must be at least a worker on ground.

Therefore, an appropriate domain of the function f(x) is the set of positive integers (from 1 to infinity).

$\text{Domain of x}=[1,\infty), x \in Z^+$

7 0

2 years ago

Easy math problem plz Halp

yan [13]

The answer is 19.5

You add all the numbers to get 273 and divide by the amount of dots which is 14 to get 19.5

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2 years ago

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Help please how many times longer is 3/4 than 2/15

liq [111]