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anygoal [31]
3 years ago
9

F(x)=−7x^2 −x and g(x)=9x^2 −4x , find (f−g)(x) and (f−g)(1)

Mathematics
1 answer:
givi [52]3 years ago
6 0

Answer:

f(x) = -7x² - x

g(x) = 9x² - 4x

To find ( f - g)(x) subtract g(x) from f(x)

That's

( f - g)(x) = - 7x² - x - ( 9x² - 4x)

= -7x² - x - 9x² + 4x

Group like terms

( f - g)(x) = - 7x² - 9x² - x + 4x

<h3>( f - g)(x) = - 16x² + 3x</h3>

To find (f - g)(1) substitute 1 into ( f - g)(x)

That's

(f - g)(1) = - 16(1) + 3(1)

= -16 + 3

<h3>= - 13</h3>

Hope this helps you

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A study was performed with a random sample of 3000 people from one church. What population would be appropriate for generalizing
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The population would be set of all Christians of that particular church from where the random samples is collected.

According to the questions,

A study was performed with a random sample 3000 people from one church. In order to find appropriate population for generalizing conclusions

The population would be set of all Christians of that particular church from where the random samples is collected.

  • This is because random samples is collected only from the particular church, so its generalization can only be the possible to large population of that church.
  • we can generalize to whole of that church because it is given that there was no bias is introduced.

Hence, the population would be set of all Christians of that particular church from where the random samples is collected.

Learn more about random samples here

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2 years ago
Please help asap! I need this done tomorrow ​
d1i1m1o1n [39]

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Step-by-step explanation:

The standard form:

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So from the given form, arrange it to the standard form.

First, simplify the form by distribution.

y + 6 = -2/3(x - 11)

y + 6 = -2/3x + 22/3

Next, you make the fractions into whole by multiplying both sides by 3(this would eliminate all fractions).

(3)y + 3(6) = 3(-2/3x) + 3(22/3)

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Now, arrange the "Ax" and the "C's".

3y + 18 = -2x + 22

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Cheers!

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4 years ago
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