4 years ago

What is the sum of the first 10 terms in this geometric sequence? 3,-6,12,-24

2 answers:

8 0

3(-2)= -6
-6(-2)= 12
12(-2)= -24
-24(-2)= 48
48(-2)= -96
-96(-2)= 192
192(-2)= -384
-384(-2)= 768
768(-2)= -1536

-1536 is the tenth term in this geo-sequence

lana [24]4 years ago

4 0

<span>3,-6,12,-24,48,-96,192,-384,768,-1536

sum:
</span>3 -6+12 -24+ 48 -96+ 192 -384+ 768 -1536 = -1023

Answer is C. -1023

You might be interested in

marianne buys 16 bags of potting soil that comes in 5/8 lb. bags. how many pounds of potting soil foes she has.

andriy [413]

One bag of soil is 5/8 pounds.
you have 16 of them.
just multiply 16 by 5/8.
you could just type it into your calculator, or you could do it the long way:
$16 * \frac{5}{8} \\ \frac{16*5}{8} \\ \frac{8*2*5}{8} \\ 2*5\\10$

she has 10 pounds of potting soil.

8 0

4 years ago

What is the answer to: 2(4z-1) = 3(z+2)

Veseljchak [2.6K]

8z-2=3z+6
5z=8
z= 8/5

3 0

3 years ago

Read 2 more answers

Can you help me by solving the following question ?

vredina [299]

Answer:

there should be formula at last look carefully and see formula u will find it

6 0

3 years ago

A sales person told Hannah she could buy the computer on an installment plan. She

VashaNatasha [74]

Answer:

She would be paying $2,622 total.

Step-by-step explanation:

1. To get how much she'd be paying for 24 months, all you have to do is multiply 24 times 95.

2. To get the down payment you had to ask yourself what's 15% of 2,280. 15% of 2280 is 342.

3. Add those together and you'd get the total payment.

Simple.

Oh and gimme Brainliest if it's correct.

6 0

3 years ago

The sum of three times a number and 28 is 484. Find the number.

Aleksandr [31]

Answer:

152

Step-by-step explanation:

484-28=456

456/3=152

4 0

3 years ago

Read 2 more answers