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2 years ago

1) what is the simplest form of the expression sqrt 20 + sqrt 45- sqrt 5

2 answers:

7 0

Square root of 20 + square root pf 45 - square root of 5. Well if that is so, how to get a square root which is the little 2 is just multiplying the number by its self so 20x20=400 and 45x45= 2,025 and 5x5=25 so 400+2,025-25=2,400

larisa86 [58]2 years ago

4 0

4 sqrt 5 is the answer

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What does<br> -$20 -$15 +$30 $2<br> Equal

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Answer:

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Step-by-step explanation:

-20-15+30+2

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2 years ago

What else would need to be congruent to show that ABC = XYZ by ASA

andre [41]

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2 years ago

Given a geometric sequence with a1 = 6 and r= 2/3 write an explicit formula for an the nth term of the sequence.

fomenos

the explicit formula for aₙ the nth term of the sequence will be: $a_{n}=6\times (\frac{2}{3})^{n-1}\\$

Step-by-step explanation:

The explicit formula of geometric sequence is of the form:

$a_{n}=a_{1}r^{n-1}$

where a₁ is the first term and r is the common ratio.

We are given:

a₁ = 6

r = 2/3

Putting values in the formula:

$a_{n}=a_{1}r^{r-1}\\a_{n}=6\times (\frac{2}{3})^{n-1}\\$

So, the explicit formula for aₙ the nth term of the sequence will be: $a_{n}=6\times (\frac{2}{3})^{n-1}\\$

Keywords: Explicit formula for geometric sequence

Learn more about Explicit formula for geometric sequence at:

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2 years ago