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Evgesh-ka [11]
2 years ago
7

7/8=21/n plz this is due tomorrow

Mathematics
1 answer:
crimeas [40]2 years ago
7 0
The answer is n=24 because 7x3=21 8x3=24
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Find the nth term of this quadratic sequence<br> 3, 11, 25, 45, .
Hoochie [10]

The term of the given quadratic sequence is found to be 3n² - n + 1 using the principle of mathematical induction.

Given,

In the question:

The quadratic sequence is :

3, 11, 25, 45, ...

To find the nth term of the quadratic sequence.

Now, According to the question;

The first term of the sequence is 3, the second term is 11, the third term is 25, and the fourth term is 45.

The difference between the first and second terms can be calculated as follows:

11-3 = 8

The difference between the second and third terms can be calculated as follows:

25-11 = 14

The difference between the third and fourth terms can be calculated as follows:

45-25 = 20

The sequence is expressed as follows:

3,3+8,11+11,25+20,...

The difference between consecutive terms expands by 6.

Use the principle of mathematical induction.

6(\frac{n(n+1)}{2} )

= 3n(n+1)

The sequence's nth term can be calculated as follows:

term = 3n(n+1) - 4n + 1

             = 3n² - n + 1

Hence, the term of the given quadratic sequence is found to be 3n² - n + 1 using the principle of mathematical induction.

Learn more about Principle of mathematical induction at:

brainly.com/question/29222282

#SPJ1

6 0
1 year ago
#9) PLEASE HELP WITH QUESTION! MARKING BRAINLIEST +POINTS
umka2103 [35]
D) Vertices: (1, -1), (-11, -1); Foci: (-15, -1), (5, -1)

4 0
2 years ago
(¤_¤) help plz. I'm confused
Alex73 [517]

I know this is not an answer but, I love your handwriting!

It is soooo much neater than mine!

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7 0
3 years ago
If you have ordered pairs (4, 6) and (2, 3). WHAT IS THE SLOPE OF THE LINE?
tangare [24]

Answer:

3/2

Step-by-step explanation:

Okay, I can represent this equation as rise over run

the coordinates 4,6 are subcoordinates 1

y: 6 - 3 = 3

x: 4 - 2 = 2

Since it is RISE over run then Y is the numerator and X is the denominator.

So the slope is 3/2.

5 0
3 years ago
If f(x) = 3x + 10 and g(x) = 2x - 4, find (f- g)(x).
densk [106]

Answer:

<em>(f-g)(x)=x+14</em>

Step-by-step explanation:

<u>Operations with Functions</u>

Given two functions f(x) and g(x), the following operations are defined:

(f+g)(x)=f(x)+g(x)

(f-g)(x)=f(x)-g(x)

(f*g)(x)=f(x)*g(x)

(f/g)(x)=f(x)/g(x)

We have f(x)=3x+10 and g(x)=2x-4. Use the second formula to find

(f-g)(x)=(3x+10)-(2x-4)

Operating:

(f-g)(x)=3x+10-2x+4

Joining like terms:

(f-g)(x)=x+14

5 0
3 years ago
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