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Dominik [7]
3 years ago
7

A circle has an area of 9. What is the circumference?

Mathematics
1 answer:
Len [333]3 years ago
7 0
The circumference of the circle is 10.36
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Hi pls help me!!! thank you
elena-s [515]

Step-by-step explanation:

Circumference (C):

C = 2\pi r = 2\pi(5\:\text{ft}) = 31.4\:\text{ft}

Area (A):

A = \pi r^2 = \pi(5\:\text{ft})^2 = 78.5\:\text{ft}^2

6 0
2 years ago
What are the coordinates of points x,j,y, and w
Dmitry_Shevchenko [17]
X: 1, 2

J: 1, 5

Y: -3, 5

Start with the x-axis which is the horizontal line, and then the y-axis which is the vertical line, then you just find the dot and the points!
8 0
3 years ago
Read 2 more answers
A new car is purchased for 22400 dollars. The value of the car depreciates at 11% per year. To the nearest tenth of a year , how
m_a_m_a [10]

Answer:

t= 12.9 years

Step-by-step explanation:

Value after t years = initial value ( 1 - r )^t

Where,

Value after t years= $5000

Initial value = $22,400

r= depreciation rate = 11%

t= length of time (years)

Value after t years = initial value ( 1 - r )^t

5000 = 22,400 ( 1 - 0.11)^t

5000 = 22,400(0.89)^t

Divide both sides by 22,400

(0.89)^t = 5000 / 22,400

(0.89)^t = 0.2232

Take the log of both sides

t log 0.89 = log 0.2232

t= log 0.2232 / log 0.89

= -0.6513 / -0.0506

= 12.87

t= 12.9 years

5 0
2 years ago
A typewriter types 750 words per hour. If she works for 8 hours a day, find the number of words she type
aksik [14]

Answer:

8,000 words

Step-by-step explanation:

If a typewriter types 750 words per hour and she types 8 hours a day she would write 8,000 words a day because 750 x 8 = 8,000.

3 0
2 years ago
Read 2 more answers
Suppose that a ball is dropped from the upper observation deck of a tower.
Arada [10]

Answer:

Question is incomplete

8 0
3 years ago
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