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masha68 [24]
2 years ago
6

What are rational numbers? Why is it important to study rational numbers?

Mathematics
1 answer:
xxTIMURxx [149]2 years ago
3 0

Answer:

Any number that can be written as a fraction with integers is called a rational number . For example, 17 and −34 are rational numbers. (Note that there is more than one way to write the same rational number as a ratio of integers. For example, 17 and 214 represent the same rational number.)

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Alexxandr [17]

It is true because when you separate 2y^2 +9y -18, you are supposed to get the factors (2y-3)(y+6), when you multiply this it gives you the first equation, we know this because when we multiply the first term it gives us exactly 2y^2 and if we multiply the last ones it gives you -18, now here is the tricky part, when we multiply the middle part we get 12y and -3y, when we add these up we get 9y, now is that the same middle as in the equation? Yes… then our factors are correct making this true


Hope this helps

7 0
3 years ago
The graph of the function f(x) = –(x + 6)(x + 2) is shown below.Which statement about the function is true?
LekaFEV [45]

Answer:

The first statement is true.

Step-by-step explanation:

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Now, condition for a function f(x) to be increasing at x = a is f'(a) > 0.

Now, f(x) = - x² - 8x - 12

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And, the condition for increasing function at x = a is  

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⇒ a < - 4

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4 0
2 years ago
The graph shows a line and two similar triangles.
Artist 52 [7]

Answer:D. y=4xt3

Step-by-step explanation:

7 0
2 years ago
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Please answer the question below and give TWO different way you can use to write 187.54 in expanded form.
Irina-Kira [14]
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5 0
3 years ago
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rjkz [21]
Your number could be rounded to:

2.01


Hope it helped,

Happy homework/ study/ exam!
7 0
3 years ago
Read 2 more answers
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