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Lady_Fox [76]
3 years ago
15

The sum of the first 8 terms of a geometric sequence with 4 as the first term and a common ratio of 3 is ​

Mathematics
2 answers:
ki77a [65]3 years ago
7 0

9514 1404 393

Answer:

  13120

Step-by-step explanation:

The sum of terms of a geometric series is ...

  Sn = a1·(r^n -1)/(r -1)

You have n=8, a1=4, r=3, so the sum is ...

  S8 = 4·(3^8 -1)/(3 -1) = 2(3^8 -1) = 13,120

olya-2409 [2.1K]3 years ago
6 0

Answer:

<h2><u>1</u><u>3</u><u> </u><u>1</u><u>2</u><u>0</u></h2>

Step-by-step explanation:

hope it helps u too

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What is the value of the expression 3² .(2³+4)/2²
Ber [7]

Answer:

27

Step-by-step explanation:

3^2(2^3+4)/2^2

3^2(8+4)/2^2

3^2(12)/2^2

9(12)/4

108/4

27

4 0
3 years ago
An isosceles triangle has an angle that measures 94º. Which other angles could be in that
Nataly [62]

Answer:

43°

Step-by-step explanation:

In a isosceles triangle, two angles HAVE to be equal.

This means that 94 can be one of the angles that are equal, or the angle that is not equal to another angle.

Let's start with the fact that 94 can be one of the angles that are equal. (Note: angles in a triangle add up to 180)

94+94+x=180

188+x=180

There is NOT a possible value for x in this situation, as you cannot have a negative value of an angle. Therefore we must try the other situation where 94 is the angle that is not equal to another angle.

x+x+94=180

2x+94=180

Subtract 94 from both sides

2x=86


Divide both sides by 2

x=43

Therefore the answer is 43°

4 0
2 years ago
Can someone help me plz
Vsevolod [243]

Answer:

centimeter

Step-by-step explanation:

sana nakatulong

8 0
3 years ago
Read 2 more answers
Please help i need this quick ill give brainlyiest
PIT_PIT [208]
What the that needs to be solved
3 0
2 years ago
How many pounds and ounces are in 95 ounces?
S_A_V [24]
There are 95 ounces and 5.9375 pounds.
4 0
3 years ago
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