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makkiz [27]
3 years ago
9

What will be the measure of exterior angle of regular pentagon give reason of you answer

Mathematics
1 answer:
xxMikexx [17]3 years ago
4 0

Answer and Step-by-step explanation:

We~know~that~a~pentagon~has~5~sides. So, to~find~ each~exterior~angle~of~a~regular~pentagon,we'll~have~to~use~the~formula which~is:

\frac{350}{number~of~sides}

Now,~that~we~know~to~use~the~formula~let's~answer~your~question.

\frac{360}{5}= 72

Now,72~is~the~angle~for~each~exterior~angle.~To~check~whether~it's correct~multiply~72~by~5~you'll~get~it~as~360.~So~it's~the~correct~answer!

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 Sandra sells necklaces at a school craft fair. She uses the equation P= 7.5n - (2.25n + 15) to determine her total profit at th
gregori [183]
The way you find profit is to subtract the revenue and the cost
Profit = Revenue - Cost
The revenue is the amount of money coming in, the cost is the amount of money going out. The goal of course is to have the revenue larger than the cost so that the profit is positive. 

So the equation given is
P = 7.5n - (2.25n+15)
and its in the form
P = R - C
where...
R = 7.5n is the revenue equation
C = 2.25n+15 is the cost equation

Focus on the revenue equation
R = 7.5n
which is the same as 
R = 7.50*n

This tells us that Sandra pulls in a total of 7.50*n dollars where n is some positive whole number. It represents the number of necklaces sold. For example, if she sold n = 10 necklaces, then
R = 7.50*n
R = 7.50*10
R = 750
meaning that Sandra has made $750 in revenue

As you can see above, the revenue is computed by multiplying the price per necklace ($7.50) by the number of necklaces sold (n) to get R = 7.50*n

So that's why the answer is $7.50

Note: The 2.25 is part of the cost equation. This is known as the variable cost. It is the cost to make one necklace ignoring the fixed cost (eg: rent). The variable cost often doesn't stay the same, but algebra textbooks often simplify this aspect. 
8 0
3 years ago
15 POINTS to solve this CONSTRUCTION.
White raven [17]

Answer:

4 PS ≅ RQ

I hope it helps

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Which correctly describes the roots of the following cubic equation x^3-5x^2+3x+9=0?
Bad White [126]

Answer:

C) Three real roots, two of which are equal in value is the right answer I believe.

Step-by-step explanation:


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Hey, my assignment is due in a few hours totally blew over me . Would appreciate some help !
NeTakaya

HOPE THIS HELPS!!!!!!!!!!!!!! :)

5 0
2 years ago
Sara and Gordon win some money and share it in the ratio 2:1. Sara gets £28 more than Gordon. How much did they get altogether?
Zinaida [17]

Answer:

84

Step-by-step explanation:

8 0
2 years ago
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