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nexus9112 [7]
2 years ago
12

Find the sum of the first 5000 odd numbers.

Mathematics
2 answers:
matrenka [14]2 years ago
4 0

Answer:

25 000 000

Step-by-step explanation:

The sum of the first n odd numbers is n^{2}

For example,

when n=1 ⇒ 1 = 1^2

when n = 2 ⇒ 1 + 3 = 4 = 2^2

when n = 3 ⇒ 1 + 3 + 5 = 9 = 3^2

So the sum of the first 5000 odd numbers is 5000^{2} =25\ 000\ 000

lozanna [386]2 years ago
3 0
The sum of the first 5000 odd numbers is 25,000,000.
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Please answer ASAP ❤️Will earn 15 points (hope your answers are valid )
svetoff [14.1K]

Answer:  The cost of one rose bush is $7 and the cost of one shrub is also $7

Step-by-step explanation:

The situtation can be represented by the systems of the equations.

10x + 4y  =  98   x in this case is the cost of  one rose bushes

9x + 9y =  126     y  is the cost of one shrub.  

Solve the system of equation using the elimination method.

10x +4y = 98

9x + 9y = 126     eliminate the y variable so you will have to multiply 9 on top                                          and -4 down.

9(10x +4) = (98)(9)

-4(9x + 9y) = 126(-4)

You will now have the new two systems of equations

90x +36y = 882

-36x +-36y = -504    Now add the equations

0  + 54x = 378      

        54x = 378

  x= 7

Now we know that the cost of one rose bush is 7 so we will plot it into one of the equations and solve for the cost of one shrub.

90(7) +36y=882

630 +36y = 882

-630            -630

    36y = 252

   y = 7

Check:  10(7) + 4(7)= 98

              70  + 28 = 98

             98= 98  

so one rose bush is actually 7 dollars the same as 1 shrub.

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2 years ago
Is (9, 90) a solution to the equation y = 10x?<br>yes​
Galina-37 [17]

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Answer is yes

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Answer:

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Step-by-step explanation:

The length of a line segment can be measured by measuring the distance between its two endpoints. It is the path between the two points with a definite length that can be measured. Explanation: On a graph, the length of a line segment can be found by using the distance formula between its endpoints.

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