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3 years ago

7

Find me equation of the circle with Center at ( 3, - 2) and radius of 3

1 answer:

blondinia [14]3 years ago

5 0

The equation of a circle with center $(x_0,y_0)$ and radius $r$ is

$(x-x_0)^2+(y-y_0)^2=r^2$

In your case,

$x_0=3,\quad y_0=-2,\quad r=3$

Plug these values into the generic formula and you'll get your equation.

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What is the equivalent ratio of 9 to 12? <br>

liraira [26]

Answer:

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Step-by-step explanation:

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4 years ago

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Water is drained out of tank, shaped as an inverted right circular cone that has a radius of 4cm and a height of 16cm, at the ra

bearhunter [10]

Answer:

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Step-by-step explanation:

From similar triangles, see diagram in attachment

$\frac{r}{4}=\frac{h}{16}$

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$r=\frac{h}{4}$

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$V=\frac{1}{3}\pi r^2h$

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$V=\frac{1}{48}\pi h^3$

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$\frac{dV}{dt}=\frac{\pi}{16}h^2 \frac{dh}{dt}$

We were given that water is drained out of the tank at a rate of $2cm^3/min$

This implies that $\frac{dV}{dt}=-2cm^3/min$ .

Since we want to determine the rate at which the depth of the water is changing at the instance when the water in the tank is 8cm deep, it means $h=8cm$ .

We substitute this values to obtain,

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$\Rightarrow -1=2\pi \frac{dh}{dt}$

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4 years ago

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stich3 [128]

Answer:

$\frac{1}{2}$

Step-by-step explanation:

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m = $\frac{-2-2}{1+1}$ = $\frac{-4}{2}$ = - 2

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The hourly wage increase each employee receives each year depends on their number of years of service. Every three years of serv

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Twelve ounces of Brand X costs $1.50. Sixteen ounces of Brand Y cost $1.92. Find the unit price of each.

Nezavi [6.7K]

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