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Stella [2.4K]
3 years ago
12

Suppose the first term of a geometric sequence is 3 and the fourth term is 192. What is the common ratio of the sequence? Write

an equation that can be used to find the nth term of the sequence. What is the sixth term of the sequence?
Mathematics
1 answer:
gayaneshka [121]3 years ago
3 0
An=A1 r ^(n-1)
192= 3 r ^(4-1)
192 = 3 r^3
64 = r^3
r = 4

equation:
An=3 (4)^(n-1)

6th term:
An= 3 (4)^(6-1)
An= 3072

I think this is right :)
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Please help! Really easy math, need it asap!!! It's in the picture
Dominik [7]

Answer:

answers are: (-1,-2), (1,2), (-1,5), (1,-5). in other words, option 2, 6, 7, and 8.

Step-by-step explanation:

hope it helps

3 0
2 years ago
PLZ HELP
Alex

Answer:

The correct option is C ) 109.5°

Therefore,

m\angle E=109.5\°

Step-by-step explanation:

Given:

In Triangle DEF

d = 10

e = 18

f = 12

To Find

angle E = ?

Solution:

In Triangle DEF , Cosine Rule says

\cos E=\dfrac{f^{2}+d^{2}-e^{2}}{2fd}

Substituting the values we get

\cos E=\dfrac{12^{2}+10^{2}-18^{2}}{2\times 12\times 10}

\cos E=\dfrac{-80}{240}=-\dfrac{1}{3}

Therefore,

\angle E=\cos^{-1}(-0.3333)

m\angle E=109.5\°       ............As it is in Second Quadrant

Therefore,

m\angle E=109.5\°

4 0
3 years ago
On average, 6 traffic accidents occur every 3 months at a certain intersection.
lions [1.4K]
The answer to this question is 2/3.
3 0
3 years ago
Need this for my teacher
ra1l [238]
I believe you combine the first and last terms first because they have the same denominator
4 0
2 years ago
Read 2 more answers
PLEASE NEED ANSWER FAST
ahrayia [7]

c or d for sure hope this helps

5 0
2 years ago
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