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2 years ago

Find the area of a circle with a diameter of \color{green}{6}6start color green, 6, end color green.

Mathematics

1 answer:

erica [24]2 years ago

4 0

Answer:

The area of the circle is $9 \pi\ units^{2}$ or $28.26\ units^{2}$

Step-by-step explanation:

we know that

The area of the circle is equal to

$A=\pi r^{2}$

we have

$r=6/2=3\ units$ ----> the radius is half the diameter

substitute

$A=\pi (3)^{2}=9 \pi\ units^{2}$ -----> exact value

assume

$\pi=3.14$

$A=9(3.14)=28.26\ units^{2}$

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When solved for c, the equation is c = k – 273.15 c = 273.15 – k c = k 273.15 c = 273.15k

charle [14.2K]

The the equation K = C + 273.15 when solved for c is C = K - 273.15

<h3>Change of subject of formula</h3>

K = C + 273.15

subtract 273.15 from both sides

K - 273.15 = C

Therefore,

C = K - 273.15

Complete question:

The temperature measured in Kelvin (K) is the temperature measured in Celsius (C) increased by 273.15. This can be modeled by the equation K = C + 273.15.

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2 years ago

Sorry if it’s low quality but I need a little help with this question.

DiKsa [7]

Answer:

340 in.

Step-by-step explanation:

L x W x H

17 x 4 x 5 = 340

3 0

2 years ago

Find gradient xe^y + 4 ln y = x² at (1, 1)

cricket20 [7]

$xe^y+4\ln y=x^2$

Differentiate both sides with respect to x, assuming y = y(x).

$\dfrac{\mathrm d(xe^y+4\ln y)}{\mathrm dx}=\dfrac{\mathrm d(x^2)}{\mathrm dx}$

$\dfrac{\mathrm d(xe^y)}{\mathrm dx}+\dfrac{\mathrm d(4\ln y)}{\mathrm dx}=2x$

$\dfrac{\mathrm d(x)}{\mathrm dx}e^y+x\dfrac{\mathrm d(e^y)}{\mathrm dx}+\dfrac4y\dfrac{\mathrm dy}{\mathrm dx}=2x$

$e^y+xe^y\dfrac{\mathrm dy}{\mathrm dx}+\dfrac4y\dfrac{\mathrm dy}{\mathrm dx}=2x$

Solve for dy/dx :

$e^y+\left(xe^y+\dfrac4y\right)\dfrac{\mathrm dy}{\mathrm dx}=2x$

$\left(xe^y+\dfrac4y\right)\dfrac{\mathrm dy}{\mathrm dx}=2x-e^y$

$\dfrac{\mathrm dy}{\mathrm dx}=\dfrac{2x-e^y}{xe^y+\frac4y}$

If y ≠ 0, we can write

$\dfrac{\mathrm dy}{\mathrm dx}=\dfrac{2xy-ye^y}{xye^y+4}$

At the point (1, 1), the derivative is

$\dfrac{\mathrm dy}{\mathrm dx}\bigg|_{x=1,y=1}=\boxed{\dfrac{2-e}{e+4}}$

4 0

3 years ago

apex if you put down 15% on a $9000 car and pay monthly payments of $189.40 for 48 months what is the total price of the car

defon

The total amount payable for the car if you put a down 15% on a $9000 car and payment of $189.40 for 48 months will be:

Amount=(15/100×9000)+(189.40×48)

=1350+9091.2

=10,441.2

The total amount of money paid for the car after a period of time will be $10,441.2

6 0

2 years ago

Please help me thanks please

s344n2d4d5 [400]

Answer:

um all you do is multiply 21 as the length by 14 was the width (LxW)

Step-by-step explanation:

=294 is your answer I think ...

6 0

2 years ago