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1 year ago

What must be added to -15 to -8what do you thinck

Mathematics

1 answer:

Stella [2.4K]1 year ago

3 0

Answer:

Step-by-step explanation:

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A. What is the explicit definition for this sequence?<br><br>b. How far does she run on day 19?

creativ13 [48]

Answer:

(a) $a_n=1+\frac{1}{6}(n-1)$

(b) 4 miles

Step-by-step explanation:

Given:

The sequence of run is an arithmetic sequence.

Miles traveled on day 1 = 1 mile

Miles traveled on day 7 = 2 miles

(a).

Explicit formula for an arithmetic sequence is given as:

$a_n=a_1+(n-1)d\\a_n\to n^{th}\ term\\a_1\to first\ term\\n\to number\ of\ terms\\d\to \textrm{common difference}$

Here, $a_1=1,a_7=2$

So,

$a_7=a_1+(7-1)d\\2=1+6d\\6d=2-1\\d=\frac{1}{6}$

Therefore, the explicit definition of the above sequence is given as:

$a_n=1+\frac{1}{6}(n-1)$

Where, $a_n$ is the miles covered on $n^{th}$ day.

(b)

In order to find the distance covered by her on day 19, we plug in 19 for n in the above formula. This gives,

$a_{19}=1+\frac{1}{6}(19-1)\\\\a_{19}=1+\frac{1}{6}(18)\\\\a_{19}=1+3=4\ mi$

Therefore, the number of miles covered by her on day 19 is 4 miles.

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2 years ago

What is the quotient 7^-6/7^2

Serggg [28]

Answer:

7 to the power of negative 8

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Jada sells ground paprika.

dimulka [17.4K]

Answer:

the answer is $200

Step-by-step explanation:

i am taking the khan academy quiz right now

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2 years ago

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What is the value of this expression? 7d squared+10 d=3

elixir [45]

The answer is 451
- hope this helped-

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3 years ago

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Eloise has 3/4 -pound of bird seeds. Each day, she feeds the birds in her yard 1/8 -pound of seeds. For how many days will she b

bulgar [2K]

Answer:

6 days

Step-by-step explanation:

First, we make common denominators:

3 *2 = 6

_ -> _

4 *2 = 8

and we get 6/8

6/8 divided by 1/8 will be 6 days

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1 year ago

What must be added to -15 to -8what do you thinck​

What must be added to -15 to -8what do you thinck