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Aleksandr [31]
3 years ago
12

The area of a circle is 9πft^2. What is the circumference in feet?

Mathematics
2 answers:
vlada-n [284]3 years ago
6 0

Answer:

  • 6π ft

Step-by-step explanation:

<u>Area:</u>

  • A = πr²

<u>Circumference:</u>

  • C = 2πr

<u>Substitute values in area:</u>

  • πr² = 9π
  • r² = 9
  • r = 3 ft

<u>Circumference is:</u>

  • C = 2π*3 = 6π
Sholpan [36]3 years ago
3 0

Answer:

98

Step-by-step explanation:

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svetlana [45]

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at x=2, do 75-15=60 pencils

etc

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3 years ago
The tank at a gas station contained 400 gallons of gas. A tanker truck that contained 8,100 gallons of gas filled the station's
spin [16.1K]

Answer:

1300

Step-by-step explanation:

Let the amount put in the station's tank = x

4(400 + x) = 8100 - x                           Remove the brackets

1600 + 4x = 8100 - x                            Subtract 1600 from both sides

1600 - 1600 + 4x = 8100 - 1600 - x     Do the subtraction

4x = 6500 - x                                        Add x to both sides

4x + x = 6500 - x + x        

5x = 6500                                            Divide by 5

5x/5 = 6500/5                                      

x = 1300

1300 gallons were added to the station's tank.

3 0
3 years ago
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Last spring, the drama department at Greenwood High School had 10 student audition for the musical. This spring, there were 8 st
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3 years ago
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Answer:

y = -4

Step-by-step explanation:

First, let's find the slope. Since the line is horizontal, it's slope has to be 0 (this is because slope = rise/run, there is no "rise" in a horizontal line therefore the slope is 0)

Now, we need to find the y-intercept. This is where the line intercepts the y-axis. Looking at the graph, the line intercepts the axis at (0,-4), therefore the y-intercept is -4.

The equation would be:

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