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natima [27]
3 years ago
10

Kris forwards an e-mail to 5 people. Each of those people forward that e-mail to 5 more people. If this happens 2 more times, wh

ich expression shows the total number of people who have recived the e-mail, not including Kris
Mathematics
1 answer:
finlep [7]3 years ago
5 0
Answer: 5 + 5^2 + 5^3 + 5^4

Explanation:

1) First time, when Kris forwards the e-mail it reaches other 5 people.

2) Second time, each one of the 5 people forawer to other 5 people, meaning that the second time the e-mail has reached other 5^2 people.

3) Third time, each 5^2 people forwarded to other 5 people, so the email reaches other 5^3 people

4) Fourth time => 5^4 new people.

So, the total number (not including Kris) is 5 + 5^2 + 5^3 + 5^4.
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What are the first five sequences to the equation f(1)=2/3,f(n)=f(n-1)x3/2
iren [92.7K]

Answer:

2/3,1,3/2,9/4,27/8

Step-by-step explanation:

f(1)=2/3

f(n)=f(n-1)×3/2

f(2)=f(2-1)×3/2=f(1)×3/2=2/3×3/2=1

f(3)=f(3-1)×3/2=f(2)×3/2=1×3/2=3/2

f(4)=f(4-1)×3/2=f(3)×3/2=3/2×3/2=9/4

f(5)=f(5-1)×3/2=f(4)×3/2=9/4×3/2=27/8

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3 years ago
What is the surface area of the triangular prism?
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Answer:

135 ft^2.

Step-by-step explanation:

The total surface area

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4 0
3 years ago
77 over 200 as mixed number as a decimal
e-lub [12.9K]

Every mixed number is (a whole number) + (a piece of another one).
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77/200  is less than ' 1 ', because the numerator is less than the
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Every fraction is a short way to write a division problem. It means

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When you actually do the division, the answer is the decimal form
of the fraction.

When you divide  77  by  200 , you get  0.385 .


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Mariulka [41]

Answer:

<em>The function to represent this relationship will be:  y= \frac{15}{x}</em>

Step-by-step explanation:

y  varies inversely with  x. That means......

y= \frac{k}{x}..............................(1)  

where k is a proportional constant.

Given that, when x=3, then y=5

Plugging these values into the above equation, we will get.....

5=\frac{k}{3}\\ \\ 5(3)=\frac{k}{3}(3)\\ \\ 15=k

Now plugging this k=15 into equation (1).....

y= \frac{15}{x}

So, the function to represent this relationship will be:  y= \frac{15}{x}


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