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DedPeter [7]
3 years ago
13

You have 36

Mathematics
2 answers:
lara31 [8.8K]3 years ago
6 0

Answer:

36 times 2 is 72

Step-by-step explanation:

That is what you're asking right? I'm just going by the last one.

sweet-ann [11.9K]3 years ago
3 0

well if each friend gets 2 and there is 36 in total and you can say that there is 18 friends.  

i don't know what equation to use cause its all in a weird way were i cant tell how each equation is.

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A pair of shoes that normally sells for $85.00 goes on sale for 35% off.
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A

Step-by-step explanation:

Melanie is correct

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Factor the following expressions using your method of choice. After factoring each expression completely, check your
OLEGan [10]

Answer:

1. 2x^{2}-x-10 =(2x-5)(x+2)

2. 6x^{2}+7x-20 = (3x-4)(2x+5)

3. 4x^{2}-4x+1 = (2x-1)(2x-1) = (2x-1)^{2}

4. A=\frac{1}{2}(2x-3)(x+3)=\frac{1}{2}(b*h)

b = 2x-3 and h = x+3.

Step-by-step explanation:

1. First, we need to find two numbers that multiply together to get -10 and 2x².

For example we chose this combination:

2x² = 2x*x let's define a=2x and b=x

-10 = (-5)*2 let's define c=-5 and d=2

Now we must verify that a*d + b*c = -x (-x is the middle term of the polynomial)

2*2x + (-5)*x = 4x - 5x = -x, so these values are correct.

Then we can rewrite the polynomial as:

2x^{2}-x-10 = (a+c)(b+d)=(2x-5)(x+2)

2. We can use the same method.

6x² = 3x*2x let's define a=3x and b=2x

-20 = (-4)*5 let's define c=-4 and d=5

Now we must verify that a*d + b*c = 7x

3x*5 + 2x*(-4) = 15x - 8x = 7x, it is correct!

Then we can rewrite the polynomial as:

6x^{2}+7x-20 = (3x-4)(2x+5)

3. Before factoring it, we can multiply by -1 each term, we will have 4x^{2}-4x+1

4x² = 2x*2x let's define a = 2x and b = 2x

1 = (-1)*(-1) let's define c = -1 and d = -1

Now we must verify that a*d + b*c = -4x

2x*(-1) + 2x*(-1) = -4x, it is correct!

Then we can rewrite the polynomial as:

4x^{2}-4x+1 = (2x-1)(2x-1) = (2x-1)^{2}

4. A=x^{2}+\frac{3}{2}x-\frac{9}{2}

If we factor out 1/2 of each term, we will have:

A=\frac{1}{2}(2x^{2}+3x-9)

And using the above method we can factorize

2x^{2}+3x-9=(2x-3)(x+3)

So, the area will be:

A=\frac{1}{2}(2x-3)(x+3)

and the area of the triangle is base times height over 2 ((b*h)/2)

A=\frac{1}{2}(2x-3)(x+3)=\frac{1}{2}(b*h)

Therefore, b = 2x-3 and h = x+3.

I hope it helps you!

3 0
3 years ago
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