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Oliga [24]
2 years ago
8

For alln∈N≥1(son≥1), and usingweakinduction, prove that:n∑i=1i3=[n(n+ 1)2]2Note that this result means that the sum of t

he third powers of the first strictly positive integers is equal to the sum of the same integers, squared=

Mathematics
1 answer:
kirill [66]2 years ago
8 0

Answer:

Step-by-step explanation:

hello,

the question is not really clear. i believe the intended equation would be

\sum_{k=1}^{k=n} k^3=\frac{(n(n+1))}{4}

please check the attached file for the step by step proof.

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Eddie drilled into a piece of wood and I joist to attach them if he drilled 3 inches in the wood was one and 1 1/3 inches thick
NARA [144]
Let JD = Distance drilled in joist 
<span>JD = 3 - 1 1/3 </span>
<span>JD = 9/3 - 4/3 </span>
<span>========================== </span>
<span>JD = 5/3 or 1 2/3 in ◄ Ans 

Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.

</span>
7 0
2 years ago
6.106x10^7 in standard form
Aleksandr-060686 [28]
Start with 6.106. move the decimal over 7 spots to the right.
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3 0
3 years ago
find the coordinates of the points D ( 4, -4 ) and E ( 5, -5 ) after the transformation ( x; y ) ( x + 3, y -5
postnew [5]

Answer:

second option

Step-by-step explanation:

Given the rule

(x, y ) → (x + 3, y - 5)

This means add 3 to the original x- coordinate and subtract 5 from the original y- coordinate, that is

D(4, - 4 ) → D'(4 + 3, - 4 - 5 ) → D'(7, - 9 )

E(5, - 5 ) → E'(5 + 3, - 5 - 5 ) → E'(8, - 10 )

7 0
3 years ago
Kyle grates 4/8 pound of cheese for enchiladas. He grates 2/8 pound of cheese for tacos. How much cheese does Kyle grate in all?
babymother [125]

He grates 6/8 pounds of cheese in all.

For this problem, you just have to add the numerators and keep the denominators.

4/8 + 2/8 = 6/8.

Remember, if the denominator is the same, just add the numerator.

7 0
3 years ago
Read 2 more answers
Vincent borrowed $300 for a new TV. If he promised to repay the loan at a simple annual interest rate of 2%, how much will he ow
Jobisdone [24]
Hi there
The formula is
A=p (1+rt)
A ?
P 300
R 0.02
T 3 years
So
A=300×(1+0.02×3)
A=318

Hope it helps
5 0
3 years ago
Read 2 more answers
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