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ira [324]
3 years ago
7

Why can’t we determine the length of a line

Mathematics
1 answer:
xxTIMURxx [149]3 years ago
3 0

Answer:you can

Step-by-step explanation: all u need to do is put a ruler by it then youll get your answer

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Proof by mathematical induction
Ghella [55]

Answer:

See below.

Step-by-step explanation:

I will assume that 3n is the last term.

First let  n = k, then:

Sum ( k terms) =  7k^2 + 3k

Now, the sum of k+1 terms  = 7k^2 + 3k + (k+1) th term

=  7k^2 + 3k + 14(k + 1) - 4

=   7k^2 + 17k + 10

Now 7(k + 1)^2 = 7k^2 +14 k + 7 so

7k^2 + 17k + 10

=  7(k + 1)^2  + 3k  + 3

= 7(k + 1)^2 + 3(k + 1)

Which is the  formula for the Sum of k terms with the k replaced by k + 1.

Therefore we can say if the sum formula is true for k terms then it is also true for (k + 1) terms.

But the formula is true for 1 term because  7(1)^2 + 3(1) = 10 .

So it must also be true for all subsequent( 2,3 etc) terms.

This completes the proof.

5 0
3 years ago
What is 15/124x230/30÷230/124
nikitadnepr [17]
1/2 because once you simplify and multiply and divide you get your answer
6 0
3 years ago
Which number is a common factor of 27 and 45?<br> A) 5 <br> B) 9 <br> C) 12 <br> D) 15
mestny [16]

Answer:

We found the factors and prime factorization of 27 and 45. The biggest common factor number is the GCF number. So the greatest common factor 27 and 45 is 9.

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Colby deposited money into a savings account that pays a simple annual interest of 1.8%. He earned $334.80 in interest after 6 y
kicyunya [14]

Answer:

3100.00

Step-by-step explanation:

8 0
3 years ago
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X • 1 + x/1 = <br><br> A. 1<br> B. x<br> C. 1 + x<br> D. 2x
Mkey [24]

Answer:

D. D is the correct answer

5 0
3 years ago
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