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Free_Kalibri [48]
3 years ago
15

the radius of a circle is doubled. a . how does the circumference change? b. How does the area change?

Mathematics
1 answer:
yaroslaw [1]3 years ago
5 0

Let's say the original radius was "r", so the circumference is 2πr and the area is πr².

Now when you double the radius, the you get a new circle with radius 2r, circumference 2π(2r) = 4πr, and area π(2r)² = 4πr².

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Marianna [84]
17/100 is the same as 17÷100. 17÷100 =0.17 sqr mile.
OR 17/100, the denominator means what place it is in. The denominator is100, so it's in the hundredth place. 0.17
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Which piecewise function represents the graph?
steposvetlana [31]

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Step-by-step explanation:

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I can't get the answer!!!! >:(
Rasek [7]

Answer:

The scale factor of the smaller rectangle to the larger rectangle is 3/2

Step-by-step explanation:

we know that

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To find out the scale factor of the smaller rectangle to the larger rectangle. set up a proportion

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or

\frac{12}{8}=\frac{3}{2} ----> ratio of corresponding bases

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7 0
3 years ago
Name
PtichkaEL [24]

Answer:

3 bars

Step-by-step explanation:

Total no. of gold bars = 24.

Fraction of bar captain allocated to himself = 1/3 of the bars

no. of bars he allocated to himself =  1/3 of 24 = 1/3 * 24 = 8

Fraction of bar captain allocated to his friend bill = 1/4 of the bars

no. of bars he allocated to his friend bill =  1/4 of 24 = 1/4 * 24 = 6

No . of bars captain allocated to rest of crew = 7

Total no of bars which are allocated altogether =

no. of bars he allocated to himself +no. of bars he allocated to his friend bill +No . of bars captain allocated to rest of crew

substituting the value of above summation variable as calculated above we have

Total no of bars which are allocated altogether = 8+6+7 = 21

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Thus 3 gold bars are left.

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Use the long division method to find the result when…
kykrilka [37]
Everything is in the attachment below !

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