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rosijanka [135]
3 years ago
15

Factor this trinomial 4x^2-6x-10 If you can please try to show me how to do it.

Mathematics
1 answer:
lilavasa [31]3 years ago
8 0

Answer:

=2(2x-5)(x+1)

Step-by-step explanation:

So we have the trinomial:

4x^2-6x-10

First, factor out a 2:

=2(2x^2-3x-5)

Now, factor within the parentheses.

To do so, we want to find two numbers. When multiplied, these two numbers must equal (a)(c) and when added, they must equal b

(a)(c) is 2(-5) or -10 and b is -3. So, we want two numbers that when multiplied together gives -10 and when added gives -3.

-5 and 2 works. Therefore:

=2(2x^2-3x-5)

Replace -3x with 2x and -5x:

=2(2x^2+2x-5x-5)

Factor out a 2x for the first two terms. And factor out a negative 5 for the remaining two:

=2(2x(x+1)-5(x+1))

Grouping:

=2(2x-5)(x+1)

And we're done!

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I would reject the null hypothesis because it falls outside of the 95% confidence interval.

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3 years ago
What is the slope and y intercept of y=-7x+12
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Hi there!

So the format of slope-intercept form is:

y= mx+b

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Using those hints, see if you can figure out the answer! :)

Hope this helped!

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

DISCLAIMER: I am not a professional tutor or have any professional background in your subject. Please do not copy my work down, as that will only make things harder for you in the long run. Take the time to really understand this, and it'll make future problems easier. I am human, and may make mistakes, despite my best efforts. Again, I possess no professional background in your subject, so anything you do with my help will be your responsibility. Thank you for reading this, and have a wonderful day/night!

~~~~~~~~~~~~~~~~





























If you're super stuck, your answer would be:

Slope: -7
Y- intercept: 12

3 0
3 years ago
Can somebody please help me out ?
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Answer:

30

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Answer:

Given the size of rectangular plate in advertisement = 5 cm by 3cm.

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Now, have to write the inequality from the given data.

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