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3 years ago

Help someone that’s good at math need your help 15 points !

Mathematics

2 answers:

mylen [45]3 years ago

8 0

Answer:

4x-4+3

Step-by-step explanation:

Sholpan [36]3 years ago

7 0

Answer:

-4+4x=3

Step-by-step explanation:

So the first step is to derive an equation from the model.

There are 4 positive x and 4 negative 1 which equal 3 positive 1 which should look like:

4x-4=3

which could be rewritten as:

-4+4x=3

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Whatttttttttt I don't get what you are trying to say but cursive means a right print r a normal r

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3 years ago

Read 2 more answers

What is the difference?

Crazy boy [7]

Answer:

<h2>D. $\frac{x^{2}+3x-12 }{(x-5)(x+3)(x+7)} \\$ or StartFraction x squared + 3 x minus 12 Over (x + 3) (x minus 5) (x + 7) EndFraction</h2>

Step-by-step explanation:

Given the expression $\frac{x}{x^{2}-2x-15 } - \frac{4}{x^{2} + 2x - 35 }$ , the dfference is expressed as follows;

Step1: First we need to factorize the denominator of each function.

$\frac{x}{x^{2}-2x-15 } - \frac{4}{x^{2} + 2x - 35 }\\= \frac{x}{x^{2}-5x+3x-15 } - \frac{4}{x^{2} + 7x-5x - 35 }\\= \frac{x}{x(x-5)+3(x-5) } - \frac{4}{x( x+ 7)x-5(x +7) }\\= \frac{x}{(x-5)(x+3) } - \frac{4}{(x-5)(x +7) }\\\\$

Step 2: We will find the LCM of the resulting expression

$= \frac{x}{(x-5)(x+3) } - \frac{4}{(x-5)(x +7) }\\= \frac{x(x+7)-4(x+3)}{(x-5)(x+3)(x+7)} \\= \frac{x^{2}+7x-4x-12 }{(x-5)(x+3)(x+7)} \\= \frac{x^{2}+3x-12 }{(x-5)(x+3)(x+7)} \\$

The final expression gives the difference

6 0

3 years ago

If 9% of a number equals 10, find 90% of that number.

rodikova [14]

The answer is 100 % because it’s the same but with two zeros

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3 years ago

William is drafting his fantasy basketball team. He needs to select one player for each position. The following table shows how

denpristay [2]

The corrrect answer is 77

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3 years ago

There are four red ,four blue, and two green marbles in a bag .if one marble is chosen at random from the bag what is the probab

mina [271]

Answer:

There is a 20% probablity that the marble will be green :)

Step-by-step explanation:

There are a total of 10 marbles in the bag. 4 red+4 blue+ 2green=10
There are two green marbles out of the 10 marbles. 2/10
2 divided by 10 is .20 or 20%
Therefore, there is a 20% probability that the marble will be green.

7 0

3 years ago