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Kryger [21]
3 years ago
14

Why do you investigate the limit value of a function closer and closer to a point, instead of just finding the value of a limit

function at the point.
Mathematics
1 answer:
puteri [66]3 years ago
6 0
In some cases, finding the limit lets you find numbers simple solutions would't allow you to find. For example, with the equation (limit being x approaching 0), if you have the equation (x^2+1)/x, you can't plug 0 into the equation because you'd be dividing by 0. Finding the limit allows you to see the number approaching 0 even though you can't actually plug 0 into the equation.
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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^+

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Question 9 of 10
Nonamiya [84]

Answer:

There are 3 terms

so it's answer A

Step-by-step explanation:

This is because terms are separated by + or - signs

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Help with this I gave all my points plzzz
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Step-by-step explanation:

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