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2 years ago

10

Please its urgent. I need workings please.

1 answer:

m_a_m_a [10]2 years ago

8 0

Answer:

y=-2/3x-5

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F(x) = 2x – 1 and g(x) = x2 – 3x – 2, find (f + g)(x)

Doss [256]

To find (f+g)(x), add the two equations and combine like terms.

2x-1+x^2-3x-2
-x-1+x^2-2
-x-3+x^2

Rearrange
x^2-x-3

Final answer: A

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3 years ago

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i need help with these 3 ? please if i get them done i can go home and im sick please help me on these 3 questions

schepotkina [342]

I got:
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2 years ago

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I NEED HELP NOW PLEASE!

lapo4ka [179]

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The slope of the line is y = 1.8x

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2 years ago

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The difference of two perfect cubes is 386. If the cube root of the smaller of the two numbers is 7, then the cube root of the l

choli [55]

Answer:

9

Step-by-step explanation:

Let the two perfect cubes be x and y where x > y.

According to the given conditions:

${x}^{3} - {y}^{3} = 386...(1) \\ y = 7...(2) \\ plug \: y = 7 \: in \: equation \: (1) \\ {x}^{3} - {7}^{3} = 386 \\ {x}^{3} - 343 = 386 \\ {x}^{3} = 343 + 386 \\ {x}^{3} = 343 + 386 \\ {x}^{3} = 729 \\ x = \sqrt[3]{729} \\ x = 9$

Thus the cube root of the larger number is 9.

8 0

3 years ago

What the answer to this problem

victus00 [196]

5n=30+3n You need to exclude the 4 due to for the first 4GB cost $30 then $3 for each additional GB used

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2 years ago

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