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nasty-shy [4]
3 years ago
15

Find the sum of nth term of the series 1+3/2+5/2^2+7/2^3+.......

Mathematics
1 answer:
ioda3 years ago
6 0

Answer:

an = (1 + 2·(n - 1))/2^(n - 1) = 2^(1 - n)·(2·n - 1)

sn = 6 - 2·0.5^n·(2·n + 3)


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Write the equation of a line that is perpendicular to y =3x-2 and that passes through the point(-9,5)
Oduvanchick [21]

Answer:

y = -1/3x + 8

Step-by-step explanation:

If two lines are perpendicular, the signs of the slope must be opposite and the slopes are reciprocals.

(basically if one is say -2/3, the other is 3/2. just flip it upside down)

So this slope is 3, so the new slope should be -1/3

The equation is now y = -1/3x + b

To find b, substitute (-9,5) in the equation

y = -1/3x + b

5 = -1/3(9) + b

5 = -3 + b

8 = b

So the equation is y = -1/3x + b

7 0
3 years ago
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Which person is vulnerable to identity theft
Ahat [919]

The person which is more vulnerable to identity theft include:

  • The elderly
  • College students
  • Children

<h3>What is Identity theft?</h3>

This involves using someone's personal information to commit fraud and other forms of crime.

The set of people mentioned above are usually naive and innocent thereby making them more vulnerable to identity theft.

Read more about Identity theft here brainly.com/question/1531239

#SPJ1

7 0
2 years ago
A movie theater charges $5 for an adult ticket and $2 for a child's ticket. One Saturday, the theater sold 785 tickets for $3280
Nadya [2.5K]

Answer:

5x + 2y = 3280

x+y = 785

x = 785 - y

5*(785 - y) + 2y = 3280

3925 - 5y + 2y = 3280

3925 - 3280 - 3y = 0

645 = 3y

y=645/3=215

x=785-215 = 570

Adults - 570 tickets, childs - 215 tickets.

570*5 + 215*2 = 3280

570 adult and 215 child and 3,280 in total

if i could get brainliest that would be great

6 0
3 years ago
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Need help again with this
nalin [4]
I think it would be B
7 0
3 years ago
Read 2 more answers
Only 3 choices please help!
scoray [572]
The second choice becouse of the total being changed 
5 0
3 years ago
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