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4 years ago

Please Help! LOOK BELOW! The first hexagon is dilated to form the second hexagon.

Mathematics

2 answers:

mote1985 [20]4 years ago

8 0

Answer:

Part 1) Option B. $4$

Part 2) Option A. An enlargement

Step-by-step explanation:

we know that

The scale factor is equal to the length side of the dilated figure divided to the length side of the original figure

$scale\ factor=\frac{0.8}{0.2} =4$

The dilation represent an enlargement because the scale factor is greater than $1$

$4> 1$ -------> represent an enlargement

Zolol [24]4 years ago

6 0

The scale factor is B. 4. To get the second shape, you multiply the sides of the first shape by 4.
This is an A. enlargement. To get the second shape, the sides of the first shape must be increased/enlarged.

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3 years ago

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4 years ago

Read 2 more answers

Please help I don’t really understand how to go about it.

Airida [17]

$\bf \textit{sum of an arithmetic sequence}
\\\\
S_n=\cfrac{n(a_1+a_n)}{2}\qquad 
\begin{cases}
n=n^{th}\ term\\
a_1=\textit{first term's value}\\
----------\\
S_n=795\\
a_1=102\\
a_n=57
\end{cases}
\\\\\\
795=\cfrac{n(102+57)}{2}\implies 1590=159n
\\\\\\
\cfrac{1590}{159}=n\implies 10=n\\\\
-------------------------------$

so the nth term is really the 10th term, and we know that's 57, thus

$\bf n^{th}\textit{ term of an arithmetic sequence}
\\\\
a_n=a_1+(n-1)d\qquad 
\begin{cases}
n=n^{th}\ term\\
a_1=\textit{first term's value}\\
d=\textit{common difference}\\
----------\\
n=10\\
a_{10}=57\\
a_1=102
\end{cases}
\\\\\\
57=102+(10-1)d\implies 57=102+9d\implies -45=9d
\\\\\\
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3 years ago

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Nuetrik [128]

Alright, lets gets started.

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Or say, in 12 hrs, swimming pool can be filled with help of pipe.

It means in 1 hr, the part of swimming pool filled = $\frac{1}{12}$ (For pipe only)