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DanielleElmas [232]
3 years ago
7

Find the percent of change for 25 is decreased to 10.

Mathematics
1 answer:
GarryVolchara [31]3 years ago
4 0

Answer:

60%

Step-by-step explanation:

25-10=15

15÷25=0.6

0.6×100=60

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A tennis tournament has 2n contestants. We want to pair them up for the first round of singles matches. Show that the number of
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There are

\dbinom{2n}2 = \dfrac{(2n)!}{2! (2n-2)!}

ways of pairing up any 2 members from the pool of 2n contestants. Note that

(2n)! = 1\times2\times3\times4\times\cdots\times(2n-2)\times(2n-1)\times(2n) = (2n-2)! \times(2n-1) \times(2n)

so that

\dbinom{2n}2 = \dfrac{(2n)\times(2n-1)\times(2n-2)!}{2! (2n-2)!} = \boxed{n(2n-1)}

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2 years ago
Let T : V → W be a linear transformation from vector space V into vector space W.
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Explanation:

Since {v1,...,vp} is linearly dependent, there exist scalars a1,...,ap, with not all of them being 0 such that a1v1+a2v2+...+apvp = 0. Using the linearity of T we have that

a1*T(v1)+a2*T(v1) + ... + ap*T(vp) = T(a1v19+T(a2v2)+...+T(avp) = T(a1v1+a2v2+...+apvp) = T(0) = 0.

Since at least one ai is different from 0, we obtain a non trivial linear combination that eliminates T(v1) , ..., T(vp). That proves that {T(v1) , ..., T(vp)} is a linearly dependent set of W.

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2 years ago
Can you help me 5x+9=29
Artyom0805 [142]
It actually equals 49
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3 years ago
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The sum of two consecutive even numbers is 210.
WITCHER [35]

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104, 106

Step-by-step explanation:

Hello!

A consecutive number is a number that comes after the other.

Let the first even integer be x. Since there is an even integer for every two integers, the second number should be x + 2.

<h3>Solve for x</h3>
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The second number is x + 2, so it would be 106.

6 0
1 year ago
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