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gladu [14]
3 years ago
14

What is the area of a rectangle that is ​2 ​ ​1 ​​ centimeter ​wide and ​5 ​ ​3 ​​ centimeter long? ​​

Mathematics
1 answer:
Dominik [7]3 years ago
7 0

Answer: either 1113 or 11.13 i don't know what 5 3 means or 2

1 so either one

Step-by-step explanation:

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What is 92.3 x 10 to the power of 4
kkurt [141]

Answer:

923000

Step-by-step explanation:

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3 years ago
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
PLEASE HELP BRANNIEST
Goshia [24]

i believe its graph D

7 0
3 years ago
Read 2 more answers
Solve the equation m2 + 6m = –4 using the quadratic formula. A. m = –3±√ 5 B. m = 5±√ 3 C. m = 3±√ 5 D. m = –5±√ 3
USPshnik [31]

Answer:  m = –3±√ 5

m=

−b±√b2−4ac

2a

m=

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2(1)

m=

−6±√20

2

m=−3+√5 or m=−3−√5

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3 years ago
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Natasha2012 [34]
The answer is D i had a similar question
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2 years ago
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