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goldfiish [28.3K]
3 years ago
14

What is the approximate uncertainty in the area of a circle of radius 3.1×104cm? Express your answer using one significant figur

e. ΔA =
Mathematics
1 answer:
Otrada [13]3 years ago
4 0
The area of a circle is expressed as:

Area = πr²
where r is the radius of the circle. This equation is used to calculate the area of the circle above. Calculation is as follows:

A = π(3.1 x 10^4 cm)² = 3.0 x 10^9 cm²

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Lenox ironed 1/4 of the shirts over the weekend she splits the remandier of work equally over the next 5 day if she has 40 shirt
Sonja [21]
So she has monday-friday (5 days) to iron 40 shirts. 40 divided by 5 = 8. Lenox irons 8 shirts per day. Thursday and Friday are 2 days, so you multiply 8 by 2 which equals 16.

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Hope this helps :)
3 0
3 years ago
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alekssr [168]

Answer:

12

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6 0
3 years ago
Which ordered pair is the solution set<br> for 3x + 5y &lt; 10?
matrenka [14]

Answer:

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7 0
3 years ago
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irina [24]
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6 0
3 years ago
Read 2 more answers
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kolezko [41]

Answer:

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3 0
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