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Kamila [148]
4 years ago
15

The formula for the area of a circle is A=pir^2. Find the area of a circle with a diameter of 6.4 centimeters. Use a calculator

and round your answer to the nearest square centimeter.
Mathematics
1 answer:
Advocard [28]4 years ago
3 0
A=pi(3.2)^2= 32.1699087728
A=32cm^2
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3 years ago
3x+3y=10<br> -9x-9y=-30<br> please help
tiny-mole [99]

Answer:

             Infinitely many solutions.

Explanation:

              In this case we gonna use ELIMINATION BY ADDITION method.For that first we are gonna eliminate the terms containing ( X ).

 Equation no 1:

                            3x + 3y = 10

 Equation no 2:

                           -9x - 9y = -30

  Now multiply equation no 1 with (3 )

                           3(3x + 3y) = 3(10)

                              9x + 9y = 30             ( equation no 1 )

   Now ADD both the equations

                            9x + 9y = 30

                           <u> -9x - 9y  =-30</u>

                                       0    = 0

6 0
3 years ago
The length of a rectangle field is 20 less than its width. The area of the field is 12000 ft ^2. What is the width of the field?
Naddik [55]
L = w - 20

12000 = w × ( w - 20 )
12000 = w^2 - 20w
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i am a mathematics teacher. if anything to ask please pm me
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Jon is developing a new bread recipe. The relationship between cups of water, w, and cups of flour, f, is w = f. What is the sca
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Answer:

1:1

Step-by-step explanation:

w = f, which means the amount of water equals the amount of flour.

5 0
3 years ago
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