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3 years ago

Find a5, when a1 =4, r=5

Mathematics

1 answer:

sasho [114]3 years ago

3 0

Answer:

Answer: a5 = 2500

Step-by-step explanation:

For a geometric sequence:

First term = a0

Second term = a1 = a0*r

Third term = a2 = a0*r^2

Fourth term = a3 = a0*r^3

....

nth term = a(n-1) = a0*r^(n-1)

Given: a1 = 4 = a0*r

Also: r = 5

So, a0*5 = 4 => a0 = (4/5)

a5 = a(6-1) = Sixth term = a0*r^5 = (4/5)*5^5 = 2500

Hope this helps

correct me if im wrong☺

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2 years ago

An investment broker puts 1/12 of his paycheck into a retirement account every quarter? How much of his $84,000 salary is put in

posledela

Answer:

$7000 of his salary is put into this account each quarter.

Step-by-step explanation:

Given:

An investment broker puts 1/12 of his paycheck into a retirement account every quarter.

His salary is $84,000.

Now, to find how much is put into this account each quarter.

As given salary = $84,000.

So, amount to put into this account every quarter =

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2 years ago

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2 years ago

Find f(3) if f(x)=-3x-6

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Answer:

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Step-by-step explanation:

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2 years ago

An artist needs to purchase jars of paint. The table shows Which quantity container is the better buy?

frutty [35]

Answer:8-oz jar

First, we have to find out what is the unit rate of the 2-oz jar. $1.50÷2 is $.75.

Second, we have to find the unit rate of the 4-oz jar. $2.92÷4=$73.

Third, we have to find the unit rate of the 8-oz jar. $5.68=$.71.

Fourth, we have to find the unit rate of the 16-oz jar. The division for this one may be tricky. From dividing $11.62 by 16, is stopped at the 3rd number I got from dividing. I got $.726. This is not a value of cents and the value can't go in the thousandths place. So, I rounded .726. I got $.73. So $11.62÷16=$.73.

Lastly, you have to compare the amounts.

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3 years ago

Read 2 more answers