3 years ago

Write a proof that shows how 45 and 4.5 have a factor of 10. and are similar.

Mathematics

1 answer:

Sidana [21]3 years ago

5 0

Answer: 4.5 x 10 = 45

0.45 x 10 = 4.5

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Find the sum of a finite geometric sequence from n = 1 to n = 6, using the expression −2(5)n − 1.

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$\bf \qquad \qquad \textit{sum of a finite geometric sequence}\\\\
S_n=\sum\limits_{i=1}^{n}\ a_1\cdot r^{i-1}\implies S_n=a_1\left( \cfrac{1-r^n}{1-r} \right)\quad 
\begin{cases}
n=n^{th}\ term\\
a_1=\textit{first term's value}\\
r=\textit{common ratio}\\
----------\\
a_1=-2\\
r=5\\
n=6
\end{cases}
\\\\\\
S_6=-2\left( \cfrac{1-5^6}{1-5} \right)$

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3 years ago

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4 years ago

(V. An aeroplane is flying parallel to the Earth's surface at a speed of 175 m/sec and at a height of 600 m. The angle of elevat

GREYUIT [131]

dot on top of earth = plane position at the time of observation (right one when 37°, left one 53°)

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