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4 years ago

What expression shows the relationship between the value of any term and n, its position in the sequence for the given sequence?

Mathematics

2 answers:

JulsSmile [24]4 years ago

5 0

The answer is obviously B

faltersainse [42]4 years ago

3 0

Answer:The answer is D

Step-by-step explanation: for the first term (1)

-(1)+3=2. Whist is the correct number for the 1st term

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If your heart beats 80 times per minute and you live to be 90 years old, estimate the number of times your heart beats during yo

umka2103 [35]

The heart beat is given in units of beats per minute, therefore before we can do any calculations let us make sure that all units are similar by converting the age in terms of minutes.

We know that there are 365 days per year, therefore:

90 years (365 days / year) = 32,850 days

We know that in a day, there are 24 hours, therefore:

32,850 days (24 hours / day) = 788,400 hours

And in an hour, there are 60 minutes, therefore:

788,400 hours (60 minutes / hour) = 47,304,000 minutes

Now calculating for the total heart beats in a lifetime:

total heartbeats = (80 beats / minute) * 47,304,000 minutes

total heartbeats = 3,784,320,000

Writing this into scientific notation:

3.78 x 10^9 beats

<span>3.8 x 10^9 beats</span>

8 0

3 years ago

Help please! thank you so much

umka21 [38]

Answer:

4 units ...................

4 0

2 years ago

What is the sum of the first 200 natural numbers?

kow [346]

The sum of the first natural numbers is 20100

6 0

3 years ago

I need help ASAP!! :(

vlabodo [156]

Answer:

A. 360, B. 306

Step-by-step explanation:

Multiply the area of each section and then add it all together

7 0

3 years ago

The numbers 0 through 9 are used in code groups of four to identify an item of clothing. Code 1083 might identify a blue blouse,

choli [55]

Answer: 5040

Step-by-step explanation:

Given : Number of choices to make a four digit code ( 0 to 9)= 10

If repetition is not allowed , then we use Permutations to find the number of different code groups can be designed.

The number of permutations of n things , taking r at a time is given by :-

$^nP_r=\dfrac{n!}{(n-r)!}$

Then, the number of permutations of 10 numbers , taking 4 at a time is given by :-

$^{10}P_{4}=\dfrac{10!}{(10-4)!}\\\\=\dfrac{10\times9\times8\times7\times6!}{6!}\\\\=\dfrac{10\times9\times8\times7}{1}\\\\=5040$

Hence, the number of different code groups can be designed= 5040

5 0

4 years ago