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1 year ago

5,000,000,000 + 600,000,000 + 6,000,000 + 600,000+ 80,000 + 300 + 80

Mathematics

2 answers:

xxTIMURxx [149]1 year ago

8 0

The answer is 5606680380

dedylja [7]1 year ago

6 0

Answer: 5,606,680,380

don't know why but use a calculator :)

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What is a Punnett square and how is it used?

goldfiish [28.3K]

The Punnett Square is a diagram used to predict an outcome of what a specific cross or breeding experiment.
It is used by biologists to determine the probability of the offspring of having a genotype

6 0

3 years ago

Find the general solution to 1/x dy/dx - 2y/x^2 = x cos x, y(pi) = pi^2

Finger [1]

Answer:

$\frac{y}{x^2}=\sin x+\pi$

Step-by-step explanation:

Consider linear differential equation $\frac{\mathrm{d} y}{\mathrm{d} x}+yp(x)=q(x)$

It's solution is of form $y\,I.F=\int I.F\,q(x)\,dx$ where I.F is integrating factor given by $I.F=e^{\int p(x)\,dx}$ .

Given: $\frac{1}{x}\frac{\mathrm{d} y}{\mathrm{d} x}-\frac{2y}{x^2}=x\cos x$

We can write this equation as $\frac{\mathrm{d} y}{\mathrm{d} x}-\frac{2y}{x}=x^2\cos x$

On comparing this equation with $\frac{\mathrm{d} y}{\mathrm{d} x}+yp(x)=q(x)$ , we get $p(x)=\frac{-2}{x}\,\,,\,\,q(x)=x^2\cos x$

I.F = $e^{\int p(x)\,dx}=e^{\int \frac{-2}{x}\,dx}=e^{-2\ln x}=e^{\ln x^{-2}}=\frac{1}{x^2}$ { formula used: $\ln a^b=b\ln a$ }

we get solution as follows:

$\frac{y}{x^2}=\int \frac{1}{x^2}x^2\cos x\,dx\\\frac{y}{x^2}=\int \cos x\,dx\\\\\frac{y}{x^2}=\sin x+C$

{ formula used: $\int \cos x\,dx=\sin x$ }

Applying condition: $y(\pi)=\pi^2$

$\frac{y}{x^2}=\sin x+C\\\frac{\pi^2}{\pi}=\sin\pi+C\\\pi=C$

So, we get solution as :

$\frac{y}{x^2}=\sin x+\pi$

4 0

3 years ago

7y - 2y + 8 = 19 + 4y

Alex777 [14]

7y - 2y + 8 = 19 + 4y

7y - 2y - 4y = 19 - 8

1y = 19 - 8

1y = 11

Ans is y = 11

6 0

3 years ago

4x(3x-7)-19x^2 simplify the expression below

LuckyWell [14K]

Answer:

opening the bracket, the expression becomes

12x^2-28-19x^2

collect like terms

12x2-19x^2-28

-7x^2-28

-7(x^2+4)

8 0

3 years ago

the perimeter of an isosceles triangle in which the equal sides measures 12cm each and third side is 8cm_____. please show the w

klemol [59]

Use the formula P = 2a+ b.

Let a = 12

Let b = 8

P = 2(12) + 8

P = 24 + 8

P = 32

5 0

3 years ago