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3 years ago

The radius of the circle F is 19cm.

Mathematics

2 answers:

andrew11 [14]3 years ago

4 0

Answer:

38.(D)

Step-by-step explanation:

Diameter=2R

Which gives u 19+19= 38

kykrilka [37]3 years ago

3 0

Answer:

Step-by-step explanation:

A circle's diameter is 2x the radius. (2r=d)

2x19=38

Please rate thanks and mark brainliest ! hope this helps :)

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UNO [17]

Answer:

$\frac{225}{16} cm/s$

Step-by-step explanation:

We are given that

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3 years ago

Which number is composite?<br> 31<br> 43<br> 37<br> 49

Alina [70]

A composite number is one that can be made by multiply two numbers to each other. Since 49=7*7, 49 is a composite number.

Check:

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Simplify

$\mathbf{2=\frac{b^{-1}}{b^{-2}}}$

Apply law of indices

$\mathbf{2=b^{-1+2}}$

$\mathbf{2=b}$

Rewrite as:

$\mathbf{b =2}$

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$\mathbf{2 =a(2^{-2})}$

This gives

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Read more about exponential functions at:

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It should be the answers if not sorry
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