3 years ago

Find the diameter of the circle with the given circumference. Use 3.14 for π(PI).

Mathematics

1 answer:

disa [49]3 years ago

5 0

Answer:

Diameter = 8.28

Step-by-step explanation:

Step 1: Solve for r

2*3.14*r = 26 / 2

3.14r / 3.14 = 13 / 3.14

r = 4.14

Step 2: Find the diameter by multiplying the radius by 2

r = 4.14

d = 4.14 * 2

d = 8.28

Answer: Diameter = 8.28

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A cube has a surface area of 900 cm what is the number of cubic cm in the volume of the cube

Anna [14]

SA = 900cm^2
SA = 6×(s^2), where "s" is one side or edge of each square surface face
900 = 6s^2
150 = s^2
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$\sqrt{25} \times \sqrt{6} = s$
$5 \sqrt{6} = s$
So each side is
$5 \sqrt{6} \: cm \: long$
The volume (V) of a cube is:
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4 years ago

42 more than half a number is the same as four times the number. What is the number?

Dmitry_Shevchenko [17]

1/2x + 42 = 4x
-1/2x -1/2x
------------------------
42 = 3.5x
/3.5 /3.5
------------------------
12 = x
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explanation: 42 more than 1/2 of a number can be written as 1/2x + 42
four times a number can be written as 4x.
42 more than 1/2 of a number is equal to 4 times a number. So 1/2x + 42 = 4x.

Hope this helps :)

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4 years ago

Lee and his family are planning a hiking trip on the Appalachian Trail. They are packing food in 2-lb bundles. How many bundles

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3 years ago

Read 2 more answers

Need help on this please help

Kitty [74]

Answer:

take that pick good and post it again and I will help ok