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3 years ago

Please help to find the HCF and LCM of this question

Mathematics

1 answer:

poizon [28]3 years ago

4 0

Step-by-step explanation:

Explanation is in the attachment

Hope it is helpful to you

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A geometric sequence is defined by the equation an = (3)3 − n.

Delvig [45]

PART A

The geometric sequence is defined by the equation

$a_{n}=3^{3-n}$

To find the first three terms, we put n=1,2,3

When n=1,

$a_{1}=3^{3-1}$

$a_{1}=3^{2}$

$a_{1}=9$
When n=2,

$a_{2}=3^{3-2}$
$a_{2}=3^{1}$

$a_{2}=3$

When n=3

$a_{3}=3^{3-3}$

$a_{3}=3^{0}$
$a_{1}=1$
The first three terms are,

$9,3,1$

PART B

The common ratio can be found using any two consecutive terms.

The common ratio is given by,
$r= \frac{a_{2}}{a_{1}}$
$r = \frac{3}{9}$

$r = \frac{1}{3}$

PART C

To find
$a_{11}$

We substitute n=11 into the equation of the geometric sequence.

$a_{11} = {3}^{3 - 11}$

This implies that,

$a_{11} = {3}^{ - 8}$

$a_{11} = \frac{1}{ {3}^{8} }$

$a_{11}=\frac{1}{6561}$

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3 years ago

Armando’s home insurance has

igomit [66]

Answer:

a. Armando pays 2500

b The insurance pays 16900

Step-by-step explanation:

Armando has to pay 2500 always and the insurance company will pay all thats left to pay is what i understand by the question and the total payment both have to do is 19400.

19400

2500 = 16900

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1 year ago

Triangle ABC is similar to triangle A'B'C'.

Darya [45]

Answer:

dilation and translation

Step-by-step explanation:

Cause im a baddie

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3 years ago

Read 2 more answers

Select the correct answer.

lyudmila [28]

Step-by-step explanation:

because degree is power.. so the expression with power of 8 is A

for B, the power is 6

for C the power is 9

and D the power is 2

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3 years ago

(Someone Help Me Please) (Or Anyone)

Sergio039 [100]

145 because I added them and I did the correct answer

8 0

3 years ago

Please help to find the HCF and LCM of this question ​

Please help to find the HCF and LCM of this question