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allsm [11]
3 years ago
14

A sector of a circle has a central angle of 60◦ . find the area of the sector if the radius of the circle is 3 mi.

Mathematics
1 answer:
kumpel [21]3 years ago
4 0
The area of sector is 4.71mi^2
You might be interested in
Consider two​ investments, one earning simple interest and one earning compound interest. If both start with the same initial de
Len [333]

Answer:

Ratio between balances will be:

(x*(1+i)*n)/(x*(1+i)^n)

Where;

x = deposit

%i = interest rate annual

n = years

Step-by-step explanation:

Lets say first deposit is x$ for both investment and annual interest rate for both investment are %i. Also, they stayed under i interest in n years:

Total balance for simple interest is:

Total balance=x*(1+i)*n

How ever total balance for compound interest is:

Total balance=x(1+i)^n

6 0
3 years ago
Jimmy has to choose a coat and hat to wear outside. He has a choice of a red (R) or green (G) coat, and a choice of a blue (B) o
Andru [333]

Answer:

{GB,GY,RY,RB}

Step-by-step explanation:

Given : Jimmy has to choose a coat and hat to wear outside. He has a choice of a red (R) or green (G) coat, and a choice of a blue (B) or yellow (Y) hat.

To Find: What is the sample space for Jimmy's possible winter gear?

Solution :

Sample space : In probability theory, the sample space of an experiment or random trial is the set of all possible outcomes or results of that experiment.

To Form sample space

If he choose red coat(R) So, with that coat he can wear blue (B) or yellow (Y) hat.

So, sample space with red coat becomes {RY,RB}

Now If he choose green (G) coat So, with that coat he can wear blue (B) or yellow (Y) hat.

So, sample space with green coat becomes {GB,GY}

So, the sample space for the given situation is  {GB,GY,RY,RB}

Hence the sample space for Jimmy's possible winter gear is {GB,GY,RY,RB}

8 0
2 years ago
Describe a circular cross-section of a sphere that does not pass through the center.
Mashutka [201]

Answer:

The radius will be smaller than the radius of the sphere

The volume of the 2 pieces of the sphere will not be the same

Step-by-step explanation:

A sphere is a three-dimensional geometrical figure. It is a set of all points equidistant from a fixed point in space.

A circle is a two-dimensional figure. It is the locus of all points equidistant from a central point.

For a circular cross-section of a sphere that does not pass through the center,

the radius will be smaller than the radius of the sphere, the volume of the 2 pieces of the sphere will not be the same

6 0
2 years ago
15. B(-2, -9), C(0,-5), D(6,-3), E(4, -7)
artcher [175]

Answer:

BC= 2√5

CD= 2√10

DE= 2√5

BE= 2√10

slope of BC = 2

slope of CD = 1/3

slope of DE = 2

slope of BE = 1/3

Step-by-step explanation:

formula for distance = √(x2-x1)²+(y2-y1)²

formula for slope = (y2-y1)/(x2-x1)

5 0
3 years ago
Find the perimeter of the triangle with vertices A(-5,-2),B(-2,-2) and C(-5,2)
Svetllana [295]
The answer is A 12.
6 0
2 years ago
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