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3 years ago

What is the sum of the first 20 terms of a finite geometric series where a1 =3 and r = 3/2

Mathematics

1 answer:

Svetllana [295]3 years ago

8 0

Answer: The answer should be 6

Step-by-step explanation:

You might be interested in

Solve the following initial-value problem:<br><br> (ex+y)dx+(3+x+yey)dy=0, y(0)=1<br><br> 0=

alex41 [277]

Answer:

$e^x+xy+3y+(y-1)e^y=4$

Step-by-step explanation:

Given that

$(e^x+y)dx+(3+x+ye^y)dy=0$

Here

$M=e^x+y$

$N=3+x+ye^y$

We know that

M dx + N dy=0 will be exact if

$\frac{\partial M}{\partial y}=\frac{\partial N}{\partial x}$

$\frac{\partial M}{\partial y}=1$

$\frac{\partial N}{\partial x}=1$

it means that this is a exact equation.

$\int d\left(e^x+xy+3y+(y-1)e^y\right)=0$

Noe by integrating above equation

$e^x+xy+3y+(y-1)e^y=C$

Given that

x= 0 then y= 1

$e^0+0+3+(1-1)e^1=C$

C=4

So the our final equation will be

$e^x+xy+3y+(y-1)e^y=4$

3 0

3 years ago

7/8 of 16 = what with work

trapecia [35]

7/8times16/1 gives 112/8, which is 14.
you multiply both numerators over both denominators.

3 0

3 years ago

Read 2 more answers

Cole worked 20 hours and earned $500. How many hours must Cole work in order to earn $700?

galina1969 [7]

Hi! I'm Carriyana!! Glad to help you today! :)

Cole needs to work 28 hrs!!

My steps:

First I did 500/20 and got 25

Then I did 700/25

And ended up with 28

So the answer should be...

9 0

3 years ago

Read 2 more answers

Please answer these two questions and please have it done by October 4

slavikrds [6]

5. 440
7. 121 muffins and cupcakes.

Hope that helps!

5 0

3 years ago

Round 503.782 to the nearest tenth.

ozzi

Answer:

503.8

Step-by-step explanation:

Since in the hundredth place you have a number higher than 5, we want to round the tenth digit up by one to get 503.8.

5 0

3 years ago