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2 years ago

Describe the relationship between the area of a circle and its circumference.

Mathematics

2 answers:

MAVERICK [17]2 years ago

7 0

Answer 1. area 2. 1\2 3. radius

Step-by-step explanation:

it is trsut me i got it right on the exam

AfilCa [17]2 years ago

6 0

Answer:

Area

1/2

Radius

Step-by-step explanation:

We know that for any circle with radius r the formula for the area and circumference of the circle is given as:

Area of circle=πr².

and circumference of circle = 2πr.

Hence, to describe the relationship between the area of a circle and its circumference.

The Area of circle is 1/2 times the radius times the circumference.

( Since,

Area=1/2 × r× 2πr

Area=πr² )

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Karolina [17]

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2 years ago

Someone plz explain!

ryzh [129]

Answer:

18° and 72°

Step-by-step explanation:

Complimentary angles form 90°

We have an angle (x) 4 times larger than the other (y).

Well actually, a system of equations isn't required, so forget about x and y, just divide 90 by 5. This gives you 18, one of the angle's measurements is 18°. Multiply 18 by 4 and get 72. The other angle's measurement is 72°.

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2 years ago

Study the graphs, then select the best answers from the drop-down menus.

-Dominant- [34]

1. b 2. a 3. a

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Step-by-step explanation:

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2 years ago

Solve the given differential equation by using an appropriate substitution. The DE is a Bernoulli equation.

Mama L [17]

Multiplying both sides by $y^2$ gives

$xy^2\dfrac{\mathrm dy}{\mathrm dx}+y^3=1$

so that substituting $v=y^3$ and hence $\frac{\mathrm dv}{\mathrm dv}=3y^2\frac{\mathrm dy}{\mathrm dx}$ gives the linear ODE,

$\dfrac x3\dfrac{\mathrm dv}{\mathrm dx}+v=1$

Now multiply both sides by $3x^2$ to get

$x^3\dfrac{\mathrm dv}{\mathrm dx}+3x^2v=3x^2$

so that the left side condenses into the derivative of a product.

$\dfrac{\mathrm d}{\mathrm dx}[x^3v]=3x^2$

Integrate both sides, then solve for $v$ , then for $y$ :

$x^3v=\displaystyle\int3x^2\,\mathrm dx$

$x^3v=x^3+C$

$v=1+\dfrac C{x^3}$

$y^3=1+\dfrac C{x^3}$

$\boxed{y=\sqrt[3]{1+\dfrac C{x^3}}}$

6 0

3 years ago

What is the Median of the numbers 45, 40, 47, 50, 45, 49, 40, 46?

stepan [7]

Answer: 45

Step-by-step explanation:

The Median is the Middle # in the set.

I hope this helps!

8 0

2 years ago