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3 years ago

One fourteenth plus nine twelves

2 answers:

8 0

This is 1 whole because you have to make the equation 1/4+9/12 and then you have to find the Lowest Common Denominator (LCD) then it will look like 3/12+9/12= 12/12=1 whole Hope that helped

Illusion [34]3 years ago

3 0

The answer is 12/12 which is equal to one whole

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Mohamed and Li Jing were asked to find an explicit formula for the sequence -5, -25, -125, -625,....

Nuetrik [128]

Answer:

Li Jing's formula i.e. $\boxed{g_n=-5\cdot \:5^{n-1}}$ is right.

Step-by-step explanation:

Considering the sequence

$-5,\:-25,\:-125,\:-625,...$

A geometric sequence has a constant ratio r and is defined by

$g_n=g_0\cdot r^{n-1}$

$\mathrm{Compute\:the\:ratios\:of\:all\:the\:adjacent\:terms}:\quad \:r=\frac{g_{n+1}}{g_n}$

$\frac{-25}{-5}=5,\:\quad \frac{-125}{-25}=5,\:\quad \frac{-625}{-125}=5$

$\mathrm{The\:ratio\:of\:all\:the\:adjacent\:terms\:is\:the\:same\:and\:equal\:to}$

$r=5$

So, the sequence is geometric.

$\mathrm{The\:first\:element\:of\:the\:sequence\:is}$

$g_1=-5$

$r=5$

$g_n=g_1\cdot r^{n-1}$

$\mathrm{Therefore,\:the\:}n\mathrm{th\:term\:is\:computed\:by}\:$

$g_n=-5\cdot \:5^{n-1}$

Therefore, Li Jing's formula i.e. $\boxed{g_n=-5\cdot \:5^{n-1}}$ is right.

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3 years ago

Multiple choice/ please help!!!

Oxana [17]

Answer:

All are right answer

But one is not (C)

There will no cot

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3 years ago

What decimal number is about equal to 1/6?

baherus [9]

Answer:

Step-by-step explanation: 0.16

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butalik [34]

Answer:

yes

Step-by-step explanation:

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