Write an explicit formula for each sequence.
3, 7, 11, 15, ...

Answers

Answer 1

Answer:

Answer:

f(n)= f(1)+d(n-1)

Step-by-step explanation:

the aerithmetric explict formula is the one above, but im not sure what the question is asking, your difference is 4 btw

Related Questions

A music festival charges $54 and 95 per ticket sold on the day of the event. A ticket purchased before the festival cost only $39.95. There were only 20,000 tickets sold for a total of $925,000 how many tickets did they sell at the music festival? How many tickets did they sell before the music festival?
Can someone please help me with this? Thank you!
Lowest common multiple of 40 and 220
One person can do a certain job in fifteen minutes, and another person can do the same job in thirty minutes. How many minutes will it take them to do the job together?
Which two numbers add up to be 8 and multiply to be -84

What is the complement of 109° degrees? A. 81° B. 71° C. 109° D. 90°

Answers

Final answer:

The complement of 109° degrees is -19°

Explanation:

The complement of an angle is the difference between 90 degrees and the given angle. In this case, the complement of 109 degrees would be 90 - 109 = -19 degrees.

Learn more about complement of an angle here:

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What is the solution to the system of equations? y=2/3x+3 x=-2

Answers

Answer:

$x=-2,y=(5)/(3)$

Step-by-step explanation:

The given system of equations is

$y=(2)/(3)x+3...(i)\n\nx=-2...(ii)$

Plugging the value of x from (ii) in equation (i) and find the value of y

$y=(2)/(3)*(-2)+3\n\ny=(-4)/(3)+3\n\ny=(5)/(3)$

Therefore, the solution of the system of equations is

$x=-2,y=(5)/(3)$

We are going to solve for x=-2, y=2/3x+3, y=2/3(-2)+3, y=5/3. Therefore, x=-2 and y=5/3

From the set {21, 37, 45}, use substitution to determine which value of x makes the inequality true.x - 8 > 29
45
none of these
37
21

Answers

37 as if it was 21 there will be no question to getting it wrong its just the facts in the sentence that tells you its right

Hi there,

It would be 45 because that is the only thing that
can make the inequality true

Hope this helped you

What is the slope of these lines please help for brainlist

Answers

i’m sorry i have to put down some answers so i can actually ask questions

Answer:

Green line: -1/2

Blue line: -1/2

Step-by-step explanation:

Both of them in slope-intercept form:

Green line: y= -1/2x-11/2

Blue line: y= -1/2x-7

If you liked my answer please make my answer the brainliest I would very much appreciate it. Thanks! :D

Micheal had 1000 viruses on his phone and he got rid of 99 how much viruses does he have to get rid of? and your welcome for the points :D

Answers

901

ILY EPICFARTS2021 THANKS FOR ALL THE POINTS

The doubling time of a population of grasshoppers is 10 days. By what factor does the population of grasshoppers grow in 35 days?

Answers

so in 10 days the grasshopper (x) is doubled (2x)
20 days it is 2(2x) or 4x
30 days it is 2(4x) or 8x
in 35 days it is 1/2 of 10 so 1/2 times 2 times 8x=8x

it increased by a factor of 8

The correct answer is:

11.3

Explanation:

In 10 days, the population x would double, becoming 2x.

Every 10 days after, the population would double again. This means at 20 days, the population would be 2(2x) = 4x, and at 30 days, the population would be 2(4x) = 2(2(2x)) = 8x.

Writing the repeated multiplication out, we see that this can be represented with exponents. 10 days would be 2¹(x); 20 days would be 2²(x); 30 days would be 2³(x).

5 days would not be adding a whole number to the exponent, as it is only half of the time it takes to double. This means we would add 0.5 to the exponent; this would make 35 days

$2^(3.5)(x)$ , which comes out to 11.3x. This means it increases by a factor of 11.3 in 35 days.