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Sergio039 [100]

4 years ago

9

Suppose that you ask three friends to go to the mall. Each one has a 0.80 chance of saying yes. What is the probability that all

three friends will say they can go to the mall with you?

1 answer:

galben [10]4 years ago

8 0

Probabilities are equal [P = 0.80]

Soooo multiply 0.80 three times

0.80 x 0.80 x 0.80 which equals 0.512

The answer would be { 0.512 }

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Ming is planning a trip to Western Samoa. The exchange rate for money is 6 Tala for $2. How many Tala would she get if she excha

valina [46]

Answer:

90.

Step-by-step explanation:

6 Tala = 2$ so 3 Tala = 1$

So , 30$ = 30 x 3 = 90 Tala.

5 0

3 years ago

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Zolol [24]

<u><em>Note:</em></u><em> As you have missed to mention the first four terms of the Arithmetic sequence. So, I am randomly assuming that first four terms of the arithmetic sequence be 1, 3, 5, 7... This would anyhow make you understand the concept. So, I am solving your query based on assuming the first four terms of an Arithmetic sequence as 1, 3, 5, 7...</em>

Part A)

<em><u>What is the next term of this sequence?</u></em>

Answer:

${\displaystyle \ a_{5}=9$ is the next term i.e. 5th term of the arithmetic sequence <em>1, 3, 5, 7...</em>

Step-by-step explanation:

Considering the Arithmetic sequence with fist four terms

<em> 1, 3, 5, 7...</em>

As we know that a sequence is termed as arithmetic sequence of numbers if the difference of any two consecutive terms of the sequence remains constant.

For instance, <em> 1, 3, 5, 7... </em>will be an arithmetic sequence having the common difference 2. Common difference is denoted by 'd'.

So,

Given the sequence

<em>1, 3, 5, 7...</em>

$d=3-1=2,d=5-3=2$

As $a_{1} = 1$ and $d = 2$

The next term i.e. 5th term can be found by using the $nth$ term of the sequence.

So, consider the nth term of the sequence $a_{n$

$\ a_{n}=a_{1}+(n-1)d$

Putting $n=5$ in, $a_{1} = 1$ and $d = 2$ in $\ a_{n}=a_{1}+(n-1)d$ to find the 5th term.

$\ a_{n}=a_{1}+(n-1)d$

$\ a_{5}=1+(5-1)2$

$\ a_{5}=1+(4)2$

${\displaystyle \ a_{5}=9$

So, ${\displaystyle \ a_{5}=9$ is the next term i.e. 5th term of the arithmetic sequence <em>1, 3, 5, 7...</em>

Part B)

<u><em>Writing down an expression, in terms of n for the nth term of the sequence</em></u>

consider the nth term of the sequence $a_{n$

$\ a_{n}=a_{1}+(n-1)d$

Here, $a_{1}$ is the first term, $d$ is the common difference.

For example,

Given the sequence

<em>1, 3, 5, 7...</em>

$d=3-1=2,d=5-3=2$

As $a_{1} = 1$ and $d = 2$

The next term i.e. 5th term can be found by using the $nth$ term of the sequence.

So, consider the nth term of the sequence $a_{n$

$\ a_{n}=a_{1}+(n-1)d$

Putting $n=5$ in, $a_{1} = 1$ and $d = 2$ in $\ a_{n}=a_{1}+(n-1)d$ to find the 5th term.

$\ a_{n}=a_{1}+(n-1)d$

$\ a_{5}=1+(5-1)2$

$\ a_{5}=1+(4)2$

${\displaystyle \ a_{5}=9$

Keywords: arithmetic sequence, nth term, common difference

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7 0

4 years ago

Can yall help me with this!

vladimir2022 [97]

Answer:

the answer is ddddddddddd!dddddd

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3 years ago

BRAINLIEST FOR CORRECT ANSWER

VARVARA [1.3K]

Answer:

n+3n=$850 n is one person and 3n is the other represented by n

Step-by-step explanation:

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3 years ago

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27 is 30 % of what number? Whole

Tju [1.3M]

Answer:

90

Step-by-step explanation:

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4 years ago

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