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alisha [4.7K]
3 years ago
10

What is the area of circle with a radius of 13 milimeters? use 3.14 for pi

Mathematics
2 answers:
MrRissso [65]3 years ago
8 0

Answer:

530.66 mm²

5.3066 cm²

Step-by-step explanation:

A = π·r²

= 3.14×(13mm)²

= 3.14×169mm²

= 530.66 mm²

= 5.3066 cm²

sweet [91]3 years ago
4 0

Answer:

530.66mm²

Step-by-step explanation:

Area of a circle = \pi r^{2}

r(radius) = 13mm

Area = (3.14 × 13²)mm²

        = (3.14 × 13 × 13)mm²

        = (3.14 × 169)mm²

        = 530.66mm²

Hope this helps :))

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Patterns allow someone to make educated guesses.
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3 years ago
The perimeter of a rectangle is 54 meters. One side is three meters less than four times the length of the other side. Find the
Elenna [48]

Answer:

6 and 21 meters long

Step-by-step explanation:

You make an equation from what you got (there are 2 widths and 2 lengths)

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I need help with this?
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4 0
3 years ago
(Will dive brainly!! please!!)
Sergio [31]

9514 1404 393

Answer:

  A) $157,555

Step-by-step explanation:

The sum of assets is ...

  house + 2 cars = $280,000 +5,200 +15,600 = $300,800

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4 0
3 years ago
How to do factor each expression 63 + 81
Katyanochek1 [597]

Answer:

9(7 + 9)

Step-by-step explanation:

To factor an expression you have to first find the highest common factor (HCF) of the numbers in the expression. You divide them by their HCF, bracket it and place the HCF outside the bracket.

63 + 81 =  \\  9(\frac{63}{9}  +  \frac{81}{9})  =  \\ 9(7 + 9)

To check if it is factored properly you can do the opposite of what you just did by clearing the bracket.

9 (7 + 9)

(9 x 7) + (9 x 9)

= 63 + 81

6 0
1 year ago
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