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olga_2 [115]
3 years ago
8

The diameter of a circle is 5 centimeters.

Mathematics
2 answers:
Pie3 years ago
8 0

Answer:

half of 5 is 2.5

2.5 x 3.14 x 2 = 15.7 cm

Formula of circumference:

2(you just always need this number when finding circumference) x pi(3.14 or 22/7 depending on what they tell you to use) x r(radius, half of your diameter or given radius).

Delvig [45]3 years ago
8 0

Answer:

15.7

Step-by-step explanation:

circumference = 2 x 3.14 x r ---? 2 x 3.14 x 2.5 = 15.7

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R-5h=Hr+2h solve for r
VikaD [51]

Answer:

The solution to this equation could not be determined.

Step-by-step explanation:

Simplifying

r + -5h = hr + 2h

Reorder the terms:

-5h + r = hr + 2h

Reorder the terms:

-5h + r = 2h + hr

Solving

-5h + r = 2h + hr

Solving for variable 'h'.

Move all terms containing h to the left, all other terms to the right.

Add '-2h' to each side of the equation.

-5h + -2h + r = 2h + -2h + hr

Combine like terms: -5h + -2h = -7h

-7h + r = 2h + -2h + hr

Combine like terms: 2h + -2h = 0

-7h + r = 0 + hr

-7h + r = hr

Add '-1hr' to each side of the equation.

-7h + -1hr + r = hr + -1hr

Combine like terms: hr + -1hr = 0

-7h + -1hr + r = 0

Add '-1r' to each side of the equation.

-7h + -1hr + r + -1r = 0 + -1r

Combine like terms: r + -1r = 0

-7h + -1hr + 0 = 0 + -1r

-7h + -1hr = 0 + -1r

Remove the zero:

-7h + -1hr = -1r

Combine like terms: -1r + r = 0

-7h + -1hr + r = 0

The solution to this equation could not be determined.

6 0
3 years ago
Read 2 more answers
Please answer 3-6 and show your work!!
myrzilka [38]

Answer:


3. 10 - 5 is 5. so that is the difference. difference means subtraction.


4. 108 - 30 = 78. so she can move 78 degrees miore after therapy because 108 minues 30 is 78


5. 99 because 180 - 81 = 99. there is always 180 degrees in a line angle.


6. 130 degrees. 25 + 25 = 50 so 180 minus 50 equals 130


Step-by-step explanation:




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What is 586,412 divided by 7,850
lara31 [8.8K]
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mezya [45]
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4 years ago
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The minute of a hand clock is 4.2 inches long does the point of a hand move more or less than 24 inches in one hour
faltersainse [42]
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