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2 years ago

How do you write a song that will knock over a cow

Mathematics

2 answers:

Anettt [7]2 years ago

7 0

The answer is in beef flat but i dont know the equation or anything so yeah

sergeinik [125]2 years ago

6 0

Is this really a school question or is it just you being weird?

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Write the inequality |x - 2| < 3 without absolute value symbols.

kotegsom [21]

$|x-2| < 3\Rightarrow x-2 < 3\ \wedge\ x-2 > -3\ \ \ \ |+2\\\\x < 5\ \wedge\ x > -1$

$x\in(-1,\ 5)$

4 0

2 years ago

The area of a circular oil slick on the surface of the sea is increasing at a rate of [150m^2/s] how fast is the radius changing

Akimi4 [234]

Answer with Step-by-step explanation:

We are given that

$\frac{dA}{dt}=150m^2/s$

a.Radius =25 m

We have to find rate of change of radius.

We know that

Area of circle, $A=\pi r^2$

Differentiate w.r.t time

$\frac{dA}{dt}=2\pi r\frac{dr}{dt}$

Substitute the values then we get

$150=2\pi (25)\frac{dr}{dt}$

$\frac{dr}{dt}=\frac{150}{50\pi}=\frac{3}{\pi} m/s$

$\frac{dr}{dt}=\frac{3}{\pi} m/s$

b.A= $1000m^2$

Substitute the values then we get

$1000=\pi r^2$

$\pi=3.14$

$r^2=\frac{1000}{3.14}$

$r=\sqrt{\frac{1000}{3.14}}=17.8m$

$\frac{dA}{dr}=2\pi r\frac{dr}{dt}$

Substitute the values then we get

$150=2\pi(17.8)\frac{dr}{dt}$

$\frac{dr}{dt}=\frac{150}{2\pi(17.8)}=\frac{150}{35.6\pi}$ m/s

$\frac{dr}{dt}=\frac{75}{17.8\pi}$ m/s

4 0

2 years ago

Find the value of y if x equals 20? -2x+4y=-4

sammy [17]

x=20

-2(20) + 4(y) =-4

-40+4y=-4

-4y=-36

y=9

4 0

3 years ago

Read 2 more answers

I will give brainliest!

Makovka662 [10]

I would think the answer is 3, sorry if i cant help.

3 0

3 years ago

Do I need to flip my sign? 3x = -12

Nataliya [291]

Answer:

Step-by-step explanation:

3x=-12

/3 /3

x=-4

7 0

3 years ago