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REY [17]
3 years ago
11

A circular plate has circumference 33.3 inches. What is the area of this plate? Use 3.14 for pi

Mathematics
1 answer:
slamgirl [31]3 years ago
5 0

Answer:
≈
52.56
square inches
Explanation:
∙
circumference (C ) of a circle is
C
=
2
π
r

×
x
where r is the radius
⇒
2
π
r
=
25.7
←
solve for r
divide both sides by
2
π
2
π
r
2
π
=
25.7
2
π
⇒
r
=
25.7
2
π
←
exact value
∙
area (A )
=
π
r
2
⇒
A
=
π
×
(
25.7
2
π
)
2
≈
52.56 )
=
π
r
2
⇒
A
=
π
×
(
25.7
2
π
)
2
≈
52.56
to 2 dec. hope I helped bruh...
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stepladder [879]

Answer:

Twice a number : 2x

increased by : +

8  :  8

is equal to : =

the number : x

increased by :  -

-4  :  -4

The answer is 2x+8 < -4


5 0
3 years ago
Which of the following is an example of a complex number that is not in the set of real numbers?
ExtremeBDS [4]

A complex number has a real and an imaginary part

4 + 9i is a complex number

A complex number is represented as:

a + bi

Where:

<em />a \to<em> real</em>

<em />bi \to<em> imaginary</em>

<em />

By comparing the options to a + bi;

-7 and 2 + \sqrt 5 are not complex numbers

This is so because they do not have imaginary parts

However,

4 + 9i is a complex number

Because; 9i is imaginary

Read more about complex numbers at:

brainly.com/question/19007885

8 0
2 years ago
Solve for x: 3(x + 1) = -2(x - 1) - 4
shepuryov [24]

Answer:

x = -1

Step-by-step explanation:

3(x+1) = -2(x-1) - 4

3x + 3 = -2x + 2 - 4

3x + 3 = -2x - 2

Add the -2x to both sides

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Subtract the 3 to both sides

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4 0
3 years ago
In the graphic below,
sukhopar [10]

The external angle is suplementary to the internal angle close to it. We also know that the sum of all the internal angles of the triangle are equal to 180 degrees, this means that the angle "a" is suplementary to the sum of the angles "b" and "c". Through this logic, we can conclude that since:

\begin{gathered} \angle d=180-\angle a \\ \angle b+\angle c=180-\angle a \end{gathered}

Then we can conclude that:

\angle d=\angle b+\angle c

Therefore the statement is true, the exterior angle is equal to the sum of its remote interior angles.

Let's use an example:

On this example, the external angle is 120 degrees, therefore the sum of the remote interior angles must also be equal to that. Let's try:

x=75+45=120

The sum of the remote interior angles is equal to the external angle.

6 0
1 year ago
The first diagram shows an equilateral triangle and a
liberstina [14]

Answer:

Ar = ¼√3 As

Step-by-step explanation:

Area of an equilateral triangle is:

Ar = ¼√3 s²

Area of a square is:

As = s²

Substituting:

Ar = ¼√3 As

4 0
3 years ago
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