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natka813 [3]
3 years ago
5

PLEASE HELP ME OUT !!! WILL APPRECIATE IT SO MUCH !!

Mathematics
1 answer:
mash [69]3 years ago
4 0
Start with the general formula. The key word is difference. So the general formula is 

D(x) = W(x) - R(x) Now substitute in the values for W(x) and R(x)
D(x) = 0.002x^3 - 0.01x^2 - (x^2 - 4x  + 13) Be very careful about the sign in front of the brackets.

D(x) = 0.002x^3 - 0.01x^2 - x^2 + 4x - 13 Do you see what that minus sign did? It affected all 3 terms.

D(x) = 0.002x^3 - 1.01x^2 + 4x - 13 <em>Note: -0.01 - 1x^2 = - 1.01 x^2</em>
That gives you a clear cut answer

C<<<<< answer.

That sign is the worst part of the question. Make sure you understand what it did.
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Is it true that (x^2–3x+2)/(x –1) = x – 2, for all values of x? Justify your answer.
just olya [345]
No, if x=1 then you get an undefined statement
if you want to try to simplify then

x^2-3x+2=(x-1)(x-2)

((x-1)(x-2))/(x-1)=x-2 is that true?
x-1 cancels out
x-2=x-2
true
but, the x-1 is trickey

if x=1, then the denomenator becomes 0 and the equation is undefined
undefined =x-2 is false

answer if no
but if your teacher says that it is true because of simplification tell that x=1 doesn't work
8 0
3 years ago
QUESTÃO 01
Korvikt [17]

Responder:

2³

5⁴

10³

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Explicação passo a passo:

Quando um certo valor é multiplicado repetidamente,

Por exemplo,

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Por isso,

2 x 2 x 2 = 2³

5 x 5 x 5 x 5 = 5⁴

10 x 10 x 10 = 10³

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5 0
3 years ago
What is the perimeter (please explain your answer)
Alex

Answer:

<em>Answer: B. 38 mm</em>

Step-by-step explanation:

<u>The Perimeter of a Shape</u>

The perimeter of a given shape is the sum of all exterior lengths surrounding the shape.

The figure shows a shape where all the external measures are given except the leftmost side.

This length is the sum of 3 mm + 10 mm = 13 mm.

Now calculate the perimeter:

P = 4 mm + 3 mm + 10 mm + 8 mm + 13 mm = 38 mm

Answer: B. 38 mm

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3 years ago
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Step-by-step explanation:

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Umm could you give me the whole question? Maybe I could answer it

7 0
3 years ago
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