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elixir [45]
3 years ago
15

Can someone help me ?? :)

Mathematics
1 answer:
LekaFEV [45]3 years ago
7 0
C is the answer you are looking for.
You might be interested in
What is the area of a sector with a central angle of 8 π/11 radians and a radius of 7.2 ft? use 3.14 for π and round your final
coldgirl [10]

Answer:

59.19 ft^2

Step-by-step explanation:

step 1

Find the area of the circle

The area of the circle is equal to

A=\pi r^{2}

we have

r=7.2\ ft

\pi =3.14

substitute

A=(3.14)(7.2)^{2}

A=162.78\ ft^2

step 2

we know that

The area of a circle subtends a central angle of 2π radians

so

using proportion

Find out the area of a sector with a central angle of 8 π/11 radians

\frac{162.78}{2\pi }\frac{ft^2}{rad} =\frac{x}{(8\pi/11)}\frac{ft^2}{rad} \\\\x=162.78(8/11)/2\\\\x=59.19\ ft^2

7 0
4 years ago
James defines a circle as the set of all the points equidistant from a given point. His statement is not precise enough because
lana66690 [7]

A circle has a center, radius, diameter and points in a plane. Depending on the context, the definition of a circle must contain at least one of the following terms:

Center

Radius

Diameter

Points in a plane

The complete question is as follows:-

James defines a circle as "the set of all the points equidistant from a given point." His statement is not precise enough

because he should specify that

A circle includes its diameter

The set of points is in a plane

A circle includes its radius

The set of points is collinear

<h3>What is a circle?</h3>

A circle is a two-dimensional geometry on the plane having a center point and the circular line is drawn equidistant from the center point.

Based on James' definition of a circle, he needed to specify that the points are in a plane (option c).

As presented in his definition "the set of all the points" can be interpreted in several ways. Some of which are:

the set of points on a line

the set of points in a plane

the set of points in a region

Etc

Of these numerous possible interpretations, James should have specified that the set of points is in a plane

To know more about circles follow

brainly.com/question/24375372

#SPJ1

4 0
2 years ago
How do use u substitution?
AlladinOne [14]
In the form of algebra substitution is the method used in simultaneous equations.
E.g    y=2x+5      and      y=5x-1
Solve for x and y
Since we know two examples of what y is, we can substitute one y in replacement of the other to get.
2x+5=5x-1 then we solve for x to get:
x = 2  sub this back in to get y = 2(2) +5
y = 9
5 0
3 years ago
Read 2 more answers
Which ratios form a proportion?
wlad13 [49]
Only the first ratio
4 0
3 years ago
Read 2 more answers
PLEASE HELP
Annette [7]

Answer:

im pretty sure 20.47

Step-by-step explanation:

even though it doesnt tell you to round up, i think you should still be safe and round up to the nearest hundred

3 0
3 years ago
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