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3 years ago

If John got a raise from $40,000 per year to $42,000 per year, what percent increase was his raise?

Mathematics

2 answers:

ivanzaharov [21]3 years ago

6 0

John’s raise is a 5% increase.

skelet666 [1.2K]3 years ago

4 0

Answer:

95.24%

Step-by-step explanation:

40/42=0.9524

0.9524×100=95.24

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How many times can 409999 go into 20

grandymaker [24]

Your answer will be 0.0487806.

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3 years ago

Read 2 more answers

Sum of cubes: (a b)(a2 – ab b2) = a3 b3 Difference of cubes: (a – b)(a2 ab b2) = a3 – b3 Which products result in a sum or diffe

valentina_108 [34]

By comparing all the options with the formula of sum of cubes and difference of cubes we get that $(x+4)\left(x^{2}-4 x+16\right)$ is sum of cubes

<h3>What is formula of sum of cubes and difference of cubes?</h3>

Formula of sum of cubes and difference of cubes are following

$(a+b)(a^2 -ab +b^2) = a^3+ b^3 \\\\\\(a - b)(a^2+ ab+ b^2) = a^3 - b^3$

(a)

$(x-4) \left(x^{2}+4 x-16\right)\\=(x-4) \left(x^{2}+4 x-4^2\right)\\\\$

by comparison with formula we can say that this is neither sum or nor difference of cubes.

(b)

$(x-1)\left(x^{2}-x+1\right)\\=(x-1)\left(x^{2}-x+1^2\right)$

by comparison with formula we can say that this is neither sum nor difference of cubes.

(c)

$(x+1)(x-1)=x^{2}-1^{2}\\$

we can say that this is neither sum nor difference of cube as it's difference of squares.

(d)

$(x+4)\left(x^{2}-4 x+16\right)\\\\(x+4)\left(x^{2}-4 x+4^2\right)$

by comparison with formula this is equal to

$x^{3}+4^{3}\\$

Hence this is sum of cubes

(e)

$(x+4)\left(x^{2}+4 x+16\right)\\(x+4)\left(x^{2}+4 x+4^2\right)$

by comparison with formula we can say that this is neither sum nor difference of cubes.

By comparing all the options with the formula of sum of cubes and difference of cubes we get that $(x+4)\left(x^{2}-4 x+16\right)$ is sum of cubes

To know more about cubes visit: brainly.com/question/107100

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2 years ago

In a survey conducted among the people,200 like fruit and100 like both of them . using veen diagram, find the number of people w

rewona [7]

your question is not clear

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2 years ago

Find the average rate of change between f(-4) and f(-1) in the function f(x)=x^2+2x-8

wel

I got (x+4) (x-2)
I feel like its wrong. Sorry i tried

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3 years ago

Wich of the following functions maps 3 to -5?

kolezko [41]

Answer:

Step-by-step explanation:

Consider all options and find f(3):

Then

Not -5, so this option is false.

Then

This option is true.

Then

Not -5, so this option is false.

Then

Not -5, so this option is false.

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3 years ago