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2 years ago

8

A recent survey found that 79% of Americans use the internet. If a city has a population of 72,000 how many people in that city

would you expect to use the internet?

1 answer:

mamaluj [8]2 years ago

8 0

79% of 72,000.....tuen percent to decimal..." of " means multiply

0.79(72,000) = 56,880 <===

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Write a rule for the nth term of the geometric sequence if r = 1/4 and a3 = 2.

GarryVolchara [31]

Answer:

$a_{n} = 32(\frac{1}{4})^{n-1}$

Step-by-step explanation:

The nth term of a geometric sequence is given by the following equation.

$a_{n+1} = ra_{n}$

In which r is the common ratio.

This can be expanded for the nth term in the following way:

$a_{n} = a_{1}r^{n-1}$

In which $a_{1}$ is the first term.

This means that for example:

$a_{3} = a_{1}r^{3-1}$

So

$a_{3} = a_{1}r^{2}$

$2 = a_{1}(\frac{1}{4})^{2}$

$2 = \frac{a_{1}}{16}$

$a_{1} = 32$

Then

$a_{n} = 32(\frac{1}{4})^{n-1}$

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3 years ago

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2 years ago

A hula hoop club bought new hula hoops. The state charges 6% sales tax. If the cost for one hula hoop was $17, what was the tota

True [87]

15.98 is the answer

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3 years ago

Algebra work need help<br> please show working

Nastasia [14]

Expand the left side:

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nikdorinn [45]

Answer:

$4a^2b^2(ab^3-4a^3+3b)$

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Step-by-step explanation:

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2 years ago