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3 years ago

A circle has a diameter of 8 m. What is the approximate area of the circle? 200.96 m2 12.56 m2 25.12 m2 50.24 m2

Mathematics

2 answers:

Nataly_w [17]3 years ago

4 0

Answer:

50.24

Step-by-step explanation:

area of a circle =pi r^2

diameter = 2 * radius

radius=8/2=4

area=pi 4^2

=pi 16

=50.26

Mandarinka [93]3 years ago

3 0

Answer:

boo

Step-by-step explanation:

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Vanyuwa [196]

Your equation would be like this:

y=11x+300

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I hope I've helped!

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3 years ago

Answer the problem and show all work.

marishachu [46]

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We want 30 + 3x = 6x

So, first we subtract 3x from each side and are left with:

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So, the cost of 10 tickets is the same more non-members and members.

We can also check it:

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3 years ago

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ollegr [7]

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Hope this helps

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3 years ago

Simplify the rational expression. state any restrictions on the variable. n^4-11n^2+30/n^4-7n^2+10

Andrej [43]

For this case we have the following expression:
 $\frac{n ^ 4-11n ^ 2 + 30}{ n ^ 4-7n ^ 2 + 10} 

$
 We are going to make the following change of variables:
 $x = n ^ 2
$
Rewriting the expression we have:
 $\frac{(x ^ 2-11x + 30)}{(x ^ 2-7x + 10)} 

$
Factoring the expression we have:
 $\frac{(x-5) (x-6)}{(x-5) (x-6)} 
$
Canceling similar terms we have:
 $\frac{x-6}{x-2} 
$
Returning the change we have:
 $\frac{n ^ 2-6}{n ^ 2-2} 

$
 The resctrictions of the function are those that make the denominator equal to zero.
We have then:
 $n ^ 2-2 = 0

n = +/- \sqrt{2} 
$
 Answer:
The simplified expression is:
 $\frac{n ^ 2-6}{n ^ 2-2}$
The restrictions are:
 $n = \sqrt{2} 
$
$n = - \sqrt{2}$

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3 years ago

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lapo4ka [179]

Answer:

-1/14

Step-by-step explanation:

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