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zysi [14]
3 years ago
7

Is -8.56 a rational or irrational number?

Mathematics
2 answers:
PolarNik [594]3 years ago
5 0
Its a rational number
Alina [70]3 years ago
4 0
It is a rational number
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If r(X)=2-x^2 and w(X)=X-2, what is the range of (w*r)(X)
slega [8]
The given function are
r(x) = 2 - x²    and     w(x) = x - 2
<span>(w*r)(x) can be obtained by multiplying the both function together
</span>
So, <span>(w*r)(x) = w(x) * r(x) = (x-2)*(2-x²)</span>
<span>(w*r)(x) = x (2-x²) - 2(2-x²)</span>
            = 2x - x³ - 4 + 2x²

∴ <span>(w*r)(x) = -x³ + 2x² + 2x - 4
</span>

<span>It is a polynomial function with a domain equal to R
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The range of <span>(w*r)(x) can be obtained by graphing the function
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To graph (w*r)(x), we need to make a table between x and (w*r)(x)

See the attached figure which represents the table and the graph of <span>(w*r)(x)
</span>

As shown in the graph the range of <span>(w*r)(x) is (-∞,∞)
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8 0
2 years ago
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What is the equation of this graph? <br><br>a) x=-7<br>b) y=-7<br>​
sergiy2304 [10]
Since it’s vertical it would be x=-7
4 0
2 years ago
Rocco is making goat food cups to be sold in a petting zoo. He has 8 apples, which is only of what he needs to make enough food
Volgvan
You would need 16apples
5 0
2 years ago
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Which relation DOES NOT represent a
Natasha2012 [34]

Answer:

C

Step-by-step explanation:

Hope this Helps :)

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2 years ago
What is the image point of (5, -2) after a translation left 6 units and down 7 units?
myrzilka [38]

Answer:

(-1,-9)

Step-by-step explanation:

(5,-2)

-5 -4 -3 -2 <em><u>-1</u></em> 0 1 2 3 4 <u>5</u>

starting at 5, move 6 units to the left, your new x-coordinate is -1

<u>-2</u>

-3

-4

-5

-6

-7

-8

<em><u>-9</u></em>

starting at -2, move 7 units down, your new y-coordinate is -9

The new point after the translation will be (-1,-9)

8 0
3 years ago
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