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ivann1987 [24]
2 years ago
8

Combine and simplify the following radical expression. 2/3 3r5

Mathematics
1 answer:
Dimas [21]2 years ago
8 0
The answer is 2 radical 5
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Does anyone know this ?
AnnyKZ [126]

Answer:

I think it is A, C, E I'm. it too sure, sorry if it's wrong

7 0
3 years ago
Can someone explain what geometric sequences are?
Fed [463]

Explanation:

A sequence is a list of numbers.

A <em>geometric</em> sequence is a list of numbers such that the ratio of each number to the one before it is the same. The common ratio can be any non-zero value.

<u>Examples</u>

  • 1, 2, 4, 8, ... common ratio is 2
  • 27, 9, 3, 1, ... common ratio is 1/3
  • 6, -24, 96, -384, ... common ratio is -4

___

<u>General Term</u>

Terms of a sequence are numbered starting with 1. We sometimes use the symbol a(n) or an to refer to the n-th term. The general term of a geometric sequence, a(n), can be described by the formula ...

  a(n) = a(1)×r^(n-1) . . . . . n-th term of a geometric sequence

where a(1) is the first term, and r is the common ratio. The above example sequences have the formulas ...

  • a(n) = 2^(n -1)
  • a(n) = 27×(1/3)^(n -1)
  • a(n) = 6×(-4)^(n -1)

You can see that these formulas are exponential in nature.

__

<u>Sum of Terms</u>

Another useful formula for geometric sequences is the formula for the sum of n terms.

  S(n) = a(1)×(r^n -1)/(r -1) . . . . . sum of n terms of a geometric sequence

When |r| < 1, the sum converges as n approaches infinity. The infinite sum is ...

  S = a(1)/(1-r)

8 0
3 years ago
What does coincides mean in geometry
Marianna [84]

Answer:

Two lines or shapes that lie exactly on top of each other. Example: these two lines are coincident, only you can't see them both, because they are on top of each other.

Step-by-step explanation:

7 0
3 years ago
In ΔNOP, o = 130 cm, ∠O=61° and ∠P=40°. Find the length of n, to the nearest 10th of a centimeter.
Amiraneli [1.4K]

Answer:

145.9

Step-by-step explanation:

Gave up on delta math.

4 0
2 years ago
Read 2 more answers
What is 0.7, 7/9, 7/8 in order from greatest to least
Sphinxa [80]
Simple...

change them all into fractions or decimals...

0.7---> 0.7

\frac{7}{9}-->>0.77

\frac{7}{8}--->>0.875

Ordering from greatest to least....

0.875-->>0.77-->>0.7

\frac{7}{8}-->>\frac{7}{9}-->>0.7

Thud, your answer.

5 0
2 years ago
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