MATHEMATICS COLLEGE

(-2x) (x-3) answer please

Answers

Answer 1

Answer:

Answer:

−2x^2+6x

Explanation:

You just have to distribute meaning you have to multiply -2x to the equation.

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A painter can finish painting a house in 3 hour

Answers

Answer:

cool

Step-by-step explanation:

4a+2(b+5a)+7 Answer with work I would really like it if the work was written if no that is ok ANSWER ASAP

Answers

Answer:

Step-by-step explanation:

4a+2(b+5a)+7

4a+2b+10a+7

4a+10a+2b+7

14a+2b+7

The answer is 14a+2b+7

A rock group needs to choose 3 songs to play at the annualBattle of the Bands. How many ways can they choose their
set if they have 15 songs to pick from? /(10 pts)

Answers

Answer:

If they have 15 songs to choose from and they can only pick three, that means they might have 5 different ways of choosing those songs.

Find the general solution of the following equation. Express the solution explicitly as a function of the independent variable. x^2 dw/dx = √ w(2x+5)

Answers

Answer:

Therefore the general solution is

$2 \sqrt w = 2 ln(x) - 5 \frac1x +c$

Step-by-step explanation:

Integration Rule:

$\int x^n dx= (x^(n+1))/(n+1)+c$
$\int \frac1x dx= ln(x) +c$

Given differential equation is

$x^2 (dw)/(dx)= √(w)(2x+5)$

$\Rightarrow x^2 dw= √(w) (2x+5) dx$ [ multiplying dx both sides]

$\Rightarrow (dw)/(\sqrt w)= ((2x+5))/(x^2) dx$ [ dividing $x^2\sqrt w$ both sides]

Integrating both sides

$\int (dw)/(\sqrt w)=\int ((2x+5))/(x^2) dx$

$\Rightarrow \int w^(-\frac12) dw=\int ((2x)/(x^2)+(5)/(x^2) )dx$

$\Rightarrow \int w^(-\frac12) dw=\int (2)/(x)dx +\int(5)/(x^2) dx$

$\Rightarrow (w^(-\frac12+1))/(-\frac12+1) =2ln x+5 (x^(-2+1))/(-2+1)+c$ [ c is arbitrary constant]

$\Rightarrow 2 \sqrt w = 2 ln(x) - 5 \frac1x +c$

Therefore the general solution is

$2 \sqrt w = 2 ln(x) - 5 \frac1x +c$

Which equation could generate the curve in a graph below?

Answers

pretty sure its the 3rd one

Uhh maybe 3? I think???

Can someone please help to explain this to me? I have been trying to work at it and have spent time watching multiple videos trying to figure it out, but am unable to figure it out. Any help would be much appreciated! Thank you.

Answers

Answer:

first 1 I think

Step-by-step explanation:

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