3 years ago

6 times a number is 27 less then the square of that number find the positive soloution

Mathematics

1 answer:

ella [17]3 years ago

5 0

Answer:

Step-by-step explanation:

n2-27=6n

Than n (exponet) 2 - 27 - 6n = 0

Now factor (n-9)(n+3)=0

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Ede4ka [16]

The correct answer is D because you would multiply the numbers in the bracket by 6 which would equal to 30

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3 years ago

How to find the unknown measure of a rectangle whose area is 91 and width is 7.

motikmotik

Answer:

Length of rectangle= 13

Step-by-step explanation:

Area= Length × width

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length= 91 ÷7 = 13

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3 years ago

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nika2105 [10]

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Step-by-step explanation:

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3 years ago

First change to standard form of first order linear differential equation and then by finding the appropriate integrating factor

Leokris [45]

Answer:

Step-by-step explanation:

Given is a Differential equation as

$xy' + y = lnx ; y(e)=1$

To bring it to linear form we can divide the full equation by x

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y'+p(x) *y = q(x)

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So find

$e^{\int\limits{\frac{1}{x} } \, dx } = e^{ln x} = x$

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3 years ago