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3 years ago

6

A birthday cake was cut into equal pieces, and nine pieces were eaten. The fraction below shows how many pieces are left. Accord

ing to the fraction, how many pieces were not eaten?
2/11

1 answer:

Artemon [7]3 years ago

3 0

Two pieces were not eaten.

hope this helps! can i plz have brainliest.<span />

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Given the polynomial 2x3 + 18x2 − 18x − 162, what is the value of the coefficient 'k' in the factored form?2x3 + 18x2 − 18x − 16

s344n2d4d5 [400]

Answer:

$k=3$

Step-by-step explanation:

Let

$f(x)=2x^3+18x^2-18x-162$

We factor 2 to obtain;

$f(x)=2(x^3+9x^2-9x-81)$

We factor the polynomial within the parenthesis by grouping.

$f(x)=2(x^2(x+9)-9(x+9)$

$f(x)=2(x^2-9)(x+9)$

$f(x)=2(x^2-3^2)(x+9)$

We apply difference of two squares on the second factor: $x^2-3^2=(x-3)(x+3)$

$f(x)=2(x+3)(x-3)(x+9)$

We now compare to;

$f(x)=2(x+k)(x-k)(x+9)$

It is now obvious that $k=3$

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3 years ago

Which expressions are equal to the expression _2.7 _ 16.4?

Genrish500 [490]

This is just to easy the correct answer is A

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3 years ago

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What is x in this equation −4.5= −0.5(x − 7.1)

Umnica [9.8K]

Answer:

x=16.1

Step-by-step explanation:

$-4.5= -0.5(x -7.1)$

Divide both sides by -0.5

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Add 7.1 to both sides

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Hope this helps!

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yo i need help with this question please and thank u i need the correct answer to please i will give u a brainliest as well

Simora [160]

V = πr ^2 h
V = π (3)^2 (5)
V = π (9) (5)
V = π 45
V = 141.3 in
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