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adoni [48]
3 years ago
9

Pls help I will mark brainlist if correct!! :) choose an answer for part A and B

Mathematics
1 answer:
salantis [7]3 years ago
6 0

Answer:

Part A:

Your answer is D, 20 so you got that correct nice job!

Part B:

I believe it is either D, 4 or A, 1. I believe it is D though so you should choose that. The reason is because there is 4 that are 7 1/4 inches.

Brainliest is very much appreciated.

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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
Find the vertical distance between the two points !!!!! Please answer correctly !!!!! Will mark Brianliest !!!!!!!!!!!!!!
olganol [36]

Answer:

The answer will be 7,-3

Step-by-step explanation:

3 0
3 years ago
The sum of the roots of the equation x 2 + x = 2 is:
julsineya [31]
Hello : 
x²+x - 2 =0
a=1   b=1   c = -2
<span>The sum of the roots is : S = -b/a 
</span>S = - 1/1 = -1 
4 0
3 years ago
Read 2 more answers
What is the markup percent on a diamond for which the markup is $870 and the selling price is $2870?
ryzh [129]

Answer:

30.31%

Step-by-step explanation:

Mark up on selling price is given by markup*100%/selling price

In this case, markup is given as $870 while the selling price is $2870 hence the percentage of narkup to selling price will be given by \frac {870\times 100}{2870}=30.313588850174\approx 30.31

Therefore, the percentage of markup to selling price is approximately 30.31%

3 0
3 years ago
Nia made some warm salt water help her her sore throat. She mixed 1 teaspoon salt with 3 cups water. Nia’s mom wanted to make mo
vaieri [72.5K]

Answer:

5/3 teaspoons (if you don't want an improper fraction, it's 1 2/3 teaspoons)

Step-by-step explanation:

If she uses 1 tsp for 3 cups, then the amount needed for one cup is 1/3 tsp.

Since the mother is using 5 cups, just multiply 1/3 by 5, which equals 5/3.

8 0
3 years ago
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