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Oliga [24]
3 years ago
15

Helppppppppppppppppp pls

Mathematics
2 answers:
nikklg [1K]3 years ago
7 0

Answer:

64.27

Step-by-step explanation:

C =2πr

C = 12.5 x 2 x π = 6.28 x 12,5 =78.5

C = 78.53

C = 78.53/2 =39.265

P = C/2 + D = 39.265+ 25cm = 64.27

Afina-wow [57]3 years ago
5 0
The answer is 182.08 because the rotation and I don’t know what I’m talking about
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2. The table below shows that the distance d varies directly as the time t. Find the constant of variation and the equation whic
Artemon [7]
<h2><u>Problem Solving</u>:-</h2>

2. The table below shows that the distance d varies directly as the time t. Find the constant of variation and the equation which describes the relation.

<h2><u>Solution</u>:-</h2>

Since the distance d varies directly as the time t, then d = kt.

Using one of the pairs of values, (2, 20), from the table, substitute the values of d and t in d = kt and solve for k.

\sf{\rightarrow{d =  kt}}

\sf\rightarrow{20  = 2k }

\sf\rightarrow{K= \frac{20}{2} }

\sf\rightarrow{K={\color{magenta}{10}}}

<h2><u>Answer</u>:-</h2>
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