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AveGali [126]
3 years ago
13

A cereal box says that now it contains 30 ounces of cereal. Originally, it came with 18.5 ounces of cereal Calculate the percent

change and round to the
nearest percent

62% increase

38% increase

62% increase

38% decrease
Mathematics
1 answer:
MakcuM [25]3 years ago
7 0

Answer:62% increase

Step-by-step explanation:

old price of cereal box = 18.5 ounces

New price of cereal box =30 ounces

Percent change = (New Price - old price / Old price ) x 100

30 - 18.5 / 18.5 x 100

11.5/18.5 x100

0.621 x100

= 62% increase

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What is a cubic polynomial function with zeros 3,3 and -3? show your work.​
Brums [2.3K]

Answer:

Cubic polynomial function with zeros 3,3 and -3 is \mathbf{x^3-3x^2-9x+27=0}

Step-by-step explanation:

We need to find a cubic polynomial function with zeros 3,3 and -3.

If zeros of polynomial are: 3,3,and -3

we can write:

x=3, x=3, x=-3

Or

We can write:

x-3=0, x-3=0, x+3=0

Now, we can write them as:

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Multiplying the terms, we can find the polynomial:

(x-3)(x-3)(x+3)=0\\(x(x-3)-3(x-3))(x+3)=0\\(x^2-3x-3x+9)(x+3)=0\\(x^2-6x+9)(x+3)=0\\x(x^2-6x+9)+3(x^2-6x+9)=0\\x^3-6x^2+9x+3x^2-18x+27=0\\x^3-6x^2+3x^2+9x-18x+27=0\\x^3-3x^2-9x+27=0

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