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2 years ago

What percent of 500 is 255?

Mathematics

2 answers:

Sidana [21]2 years ago

5 0

255 is what percent of 500? = 51.

Elena-2011 [213]2 years ago

3 0

Answer:

Step-by-step explanation:

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PLEASE ANSWER BOTH OF THESE QUESTIONS HONESTLY, IM GIVING OUT BRAINLIEST AND 50 POINTS TO WHOEVER GETS THEM BOTH CORRECT! :D

SVEN [57.7K]

Answer:

1st graph: D) Y = 2/3x

2nd graph: A) Y = 4/3x - 5

Step-by-step explanation:

Hope this helps. Pls give brainliest!

6 0

2 years ago

Read 2 more answers

120 books increased by 55%

Novay_Z [31]

<span> To find 55% of 120 books, multiply 120 x .55
Then add that answer to the original 120.</span>

120 + 55% = 186

6 0

3 years ago

The polynomial x^2+3x-1 is a factor of x^4+3x^3-2x^2-3x+1 true or false?

pashok25 [27]

Answer:

Yes, it is true that $x^2+3x-1$ is a factor of $x^4+3x^3-2x^2-3x+1$ .

Step-by-step explanation:

Let us try to factorize $x^4+3x^3-2x^2-3x+1$

$x^4+3x^3-2x^2-3x+1\\\Rightarrow x^4-2x^2+1-3x+3x^3$

Let us try to make a whole square of the given terms:

$\Rightarrow (x^2)^2-2\times x^2 \times 1+1^2+3x^3-3x\\\Rightarrow (x^2-1)^2+3x^3-3x\\$

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Formula used above:

$a^{2} -2 \times a \times b +b^{2} = (a-b)^2$

In the above equation, we had $a = x, b = 1$ .

--------------

Further solving the above equation, taking $3x$ common out of $3x^3-3x$

$\Rightarrow (x^2-1)^2+3x(x^2-1)\\$

Taking $(x^{2} -1)$ common out of the above term:

$\Rightarrow (x^2-1)((x^2-1)+3x)\\\Rightarrow (x^2-1)(x^2+3x-1)$

So, the two factors are $(x^2-1)\ and\ (x^2+3x-1)$ .

$\therefore$ The statement that $x^2+3x-1$ is a factor of $x^4+3x^3-2x^2-3x+1$ is <em>True.</em>

7 0

2 years ago

If a hypothesis test leads to the rejection of the null hypothesis, a _____.

Butoxors [25]

Answer:

Step-by-step explanation:

Hope it helped u

6 0

2 years ago

What percent of 50 is 18?

JulijaS [17]

Answer:

36 %

Step-by-step explanation:

Convert the fraction to a decimal, then multiply by 100 .

3 0

3 years ago

Read 2 more answers