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Neporo4naja [7]

3 years ago

10

Which term best describes he statement given below? If x => y and y=> z, then x=> z

1 answer:

Ierofanga [76]3 years ago

7 0

Answer:d

Step-by-step explanation:

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GUYS PLEASE HELP MY TEACHER SKIPPED A WHOLE CHAPTER I ONLY KNOW BASICS SO PLEASEEEE HELP `(*>﹏<*)′

malfutka [58]

Answer:

the shape is similar with yours and the friend

2 shapes=30min

3 shapes=x min

30 x 3 / 2=45 min

Step-by-step explanation:

i think good luck! i'm not sure

3 0

2 years ago

Read 2 more answers

The sum of two numbers is 67 . the larger number is 5 more than the smaller number. what are the numbers?

Scorpion4ik [409]

Call the numbers x and y. According to the first sentence, x + y = 67. According to the second sentence, x = y + 5. You can combine these two equations to find the values of these variables:

x + y = 67
(y + 5) + y= 67
2y = 62
y = 31

You can use this to find x by plugging in y to either original equation:

x = y + 5
x = 31 + 5
x = 36

8 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

Write four numbers that round to 700,000 when rounded to the nearest hundred thousand

slega [8]

699,995
699,996
699,997
699,998

6 0

3 years ago

Find the equation given the following two points (7,19)and(9,29).

torisob [31]

Step-by-step explanation:

29-19/9-7=5=slope

y-y1=slope(x-x1)=

y-19=5(x+7)=

y=5x+35+19=

y=5x+54

5 0

3 years ago