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Rudik [331]
3 years ago
8

What circular area is covered by the signal if the circumference is 754 miles?

Mathematics
1 answer:
Alekssandra [29.7K]3 years ago
5 0

Answer:

A =45216 miles^2

Step-by-step explanation:

We can find the radius

C = 2 * pi *r

754 = 2 * pi *r

Divide each side by 2 pi

754 /2pi = 2 * pi *r/ 2 pi

377/pi =r

Approximating 3.14 for pi and rounding the radius to the nearest mile

120 = r

Now we need to find the area

A = pi r^2

A = 3.14 (120)^2

A = 3.14 (14400)

A =45216 miles^2

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Again, please help. i dont know any of this
Levart [38]

\textrm {Cylinder volume :}

\mathrm {Volume = \pi r^{2}{h}}

\mathrm {Volume = 3.14 \times (\frac{4}{2})^{2} \times 3}

\mathrm {Volume = 3.14 \times 12}

\mathrm {Volume = 37.68cm^{3}}

\textrm {Rectangular prism volume :}

\mathrm {Volume = length \times width \times height}

\mathrm {Volume = 6 \times 5 \times 7}

\mathrm {Volume = 30 \times 7}

\mathrm {Volume = 210cm^{3}}

\textrm {Total volume of composite figure :}

\textrm {Volume of cylinder + volume of rectangular prism}

\mathrm {37.68 + 210}

\mathrm {247.68cm^{3}}

4 0
2 years ago
Read 2 more answers
Use the line plot below to answer the following questions when x=9​
loris [4]

Answer:

8 x + 3 = 75

9 x - 6 = 75

5 x + 5 = 50

Step-by-step explanation:

8 x + 3

8 (9) + 3

72 + 3

75

---------------------------

9 x - 6

9 (9) - 6

81 - 6

75

---------------------------

5 x + 5

5 (9) + 5

45 + 5

50

3 0
3 years ago
Which statement best describes the graph of the system of equations? x-y=1, y-x=1
Dmitry_Shevchenko [17]

Answer:

             Parallel lines

Step-by-step explanation:

x - y = 1                                       y - x = 1

- y = -x + 1                                   y = x + 1  ⇒ m₂ = 1, b₂ = 1

÷(-1)     ÷(-1)

y = x - 1 ⇒ m₁ = 1, b₁ = -1

m₁ = m₂   and   b₁ ≠ b₂ means that the lines described by these equations are parallel

8 0
4 years ago
Helppp pleasee!!!<br> MARK BRAINLIST <br> 12 POINTS
Elanso [62]

Answer:

12.56

Step-by-step explanation:

use the circumference of a circle formula, C=2πr, to find the circumference

so C=2π(2)=12.56 the last one

3 0
3 years ago
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An artist has completed 1/4 of a painting in 2 weeks. At what rate is she working?.
levacccp [35]

Answer:

1/8

Step-by-step explanation:

1/4 of a painting in 2 weeks would be 1/8 painting for 1 week

8 0
3 years ago
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