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geniusboy [140]
3 years ago
5

I really don't know how to do this-​

Mathematics
1 answer:
kvv77 [185]3 years ago
3 0

Answer:

b is correct

Step-by-step explanation:

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f(X) = 9x^3 + 2x^2 - 5x^3 - 7x + 4 and g(X) = 5x^3 - 7x + 4. what is f(X) - g(X)? Show all of your steps and write your final an
dolphi86 [110]
First we can simplify f(x) to make it a little easier. We can write it as
4x^3+2x^2-7x+4 by combining like terms

The we just subtract g(x) from f(x) and simplify
4x^3+2x^2-7x+4-(5x^3-7x+4) and remember to distribute the negative to g(x)
4x^3+2x^2-7x+4-5x^3+7x-4 (combine like terms)
-x^3+2x^2
In factored form, this becomes
-x^2(x-2)

Hope this helps
5 0
3 years ago
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70 POINTS !! Charlotte has a map of the village. The scale on the map is such that 1cm represents 25m.
Natasha_Volkova [10]

Answer:

A. 175 m

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Step-by-step explanation:

\frac{1 cm}{25 m} =\frac{7 cm}{x m}

x = 175 m

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x = 20 cm

5 0
2 years ago
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a big penguin will eat three times as much as a small penguin. the big penguin will eat 21 grams of fish. let b = number of gram
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Express cos^2 x in terms of cos2x. Hence, express f(x) = 6cos^2 x - 4sin 2x in the form R cos (2x + Y degrees) + p where R, y an
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3 years ago
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Answer:

5

Step-by-step explanation:

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2 years ago
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