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3 years ago

7

the circumference of a circle is about 25.3 in find the area of the circle using 3.14 as an approximation for pie.Round your ans

wer the nearest hundredth

1 answer:

sertanlavr [38]3 years ago

3 0

<span>50.962 is answer m8t</span>

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Find all real and complex roots of the equation below x^4-81=0

Pepsi [2]

$x^4-81=0 \\ (x^2-9)(x^2+9)=0\\ (x-3)(x+3)(x^2+9)=0\\ x=3 \vee x=-3 \vee x=3i \vee x=-3i$

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3 years ago

Cool Down: Fish Population

Ber [7]

Answer:

the population this year is 15 I think

Step-by-step explanation:

the population this year is 15 I think because 60 = 100% so if you divide 60 into two you will get 30 / 50%. then divide 30 again which would be 15 and that's 25 percent. only if you know what 60 divides by 2 and then 30 divided by 2.

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3 years ago

When x-y=3 work out the value of y-x

GalinKa [24]

The value of y-x is (-3)

<u>Solution:</u>

Given: The value of x-y=3

To find: The value of y-x

$\bold{x-y=3\rightarrow (1)}$

Let's multiply the equation (1) by (- 1) on both sides,

$\Rightarrow\bold{(x - y)\times(- 1) = 3\times(- 1)}$

$\Rightarrow\bold{-(x-y)=-3}$

On multiplying the sign,

$\Rightarrow\bold{(-x+y)=-3}$

The above equation can also be written as,

$\Rightarrow\bold{y-x=-3\rightarrow \text{(The required equation)}}$

<u>Multiplication of signs:</u>

$\Rightarrow( + )\times( + ) = ( + )$

$\Rightarrow( + )\times( - ) = ( - )$

$\Rightarrow( - )\times( + ) = ( - )$

$\Rightarrow( - )\times( - ) = ( + )$

In simpler terms, when we multiply two integers with the same signs, the result is always positive and when we multiply two integers with different signs, the result is always negative.

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3 years ago

Lisa has to cut her grandma's grass this weekend and wants to know exactly how much area she will be cutting. Calculate the area

Amiraneli [1.4K]

I would use the formula, area = length x width

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3 years ago

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7 x 2/3 in simplest form

kozerog [31]

Answer:

4.67

Step-by-step explanation:

calculator says so

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3 years ago

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