3 years ago

21/33 Marks

Mathematics

1 answer:

Marrrta [24]3 years ago

8 0

Answer:

ooooooooooooooooooooooooooooooooo

Step-by-step explanation:

la de da de da la de da de deee sudennly you call my name an I lose my weight and I float up to the sky!

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If the radius of the circle is multiplied by a factor of 3, then the area of the circle is multiplied by a factor of

Oksi-84 [34.3K]

$\bf \textit{area of a circle}\\\\
A=\pi r^2\quad 
\begin{cases}
r=radius\\
-----\\
r=\stackrel{r\times 3}{3r}
\end{cases}\implies A=\pi (3r)^2
\\\\\\
A=\pi (3^2r^2)\implies A=9(\pi r^2)$

notice, if the original area was πr², then the new area has a factor in front of it, that much.

8 0

3 years ago

How much lighter is 345 g than 1,1 kg

NemiM [27]

Answer:

755 gram lighter

Step-by-step explanation:

Convert 1.1kg into gram by multiplying it with 1000

1.1 x 1000= 1100 and we take this amount and subtract it with 345g

1100-345= 755g

3 0

3 years ago