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Ipatiy [6.2K]
3 years ago
9

The circumference of a circle is 40 m. Find its area?

Mathematics
1 answer:
earnstyle [38]3 years ago
5 0

If the circumference of a circle is 40 m, its area is 127.32395447352 m².

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What is the value of (2x^2-5x+4)if x =7
Troyanec [42]
<span>We have to use PEMDAS for this expression.

Parentheses
Exponents
Multiplication
Division
Addition
Subtraction

</span>(2x^2 - 5x + 4)                    Original Mathematical Expression

[2(7)^2 - 5(7) + 4]                 Plugging the value of x, 7 into expression.

There are parentheses, so that means we have to work in them.

There are exponents, so we have to do those first.

[2(49) - 5(7) +4]                    Exponents.

There is multiplication, that we can do, so we do that left to right.

[98 - 35 + 4]                         Multiplication.

There is no division.

There is addition and subtraction, so we do those left to right.

[63 + 4]                                Subtraction.

67                                        Addition.

Final Answer: 67

6 0
3 years ago
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Need help on maths question asap
Zigmanuir [339]

Answer:

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stealth61 [152]

Answer: 6x-3

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7 0
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Ahat [919]
10 degree slope angle
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laiz [17]
First you start off by setting up a Subtraction problem there anything common denominators of 7/8 and two over three verse 7/8 you should get 21/24 invert to over three you should get 16/24 then you would subtract those two anyway to get 5/24 I hope that was helpful get it
7 0
3 years ago
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