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3 years ago

Mark got a 20% raise for his salary. If this salary was $1,800, what is his new salary

Mathematics

2 answers:

Marina86 [1]3 years ago

5 0

100% = $1800
120% = $2160

:)

zzz [600]3 years ago

3 0

We have to find what 20% of $1,800 is.

We can do this by multiplying 0.20 and $1,800
Lets do that :)

0.20 x $1,800 = $360

Now we know that 20% of $1,800 is $360

Since it is asking for his new salary with an extra 20%
we add $1,800 and $360

Soo..
$1,800 + $360 = $2,160

This means that mark's new paycheck is $2,169

Good Luck! :)

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30 points 1 question PLEASE HELP ME OUT I REALLY NEED IT

Pachacha [2.7K]

Answer:

p(-5/3) ≠ 0 So, (3 x +5) is NOT A FACTOR of p(x)

Step-by-step explanation:

Here, the given function is $p(x)=3x^5+2x^2 - 5$

Now, the given root of the function is ( 3x +5)

Now, if ( 3 x + 5) = 0,

we get x = - 5/3

So, the zero of the given polynomial is x = -5/3

Then, x = -5/3, p(x) =0 ⇒ ( 3 x + 5) is a FACTOR of p(x)

Now, let us find the value of function at x = -5/3

Substitute x = -5/3 in the given function p(x), we get:

$p(x)=3x^5+2x^2 - 5 \implies p(\frac{-5}{3}) = 3(\frac{-5}{3})^5 + 2(\frac{-5}{3})^2 - 5\\= 3(\frac{-3,125}{243}) + 2(\frac{25}{9}) - 5\\= (\frac{-3,125}{81}) + (\frac{50}{9}) - 5\\= -38.580 + 5.56 - 5 = -38.02\\\implies p(\frac{-5}{3}) = -38.02$

Now, as p(-5/3) ≠ 0 So, (3x +5) is NOT A FACTOR of p(x)

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