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natta225 [31]
2 years ago
10

The diameter of a circle is 6.4 in.

Mathematics
2 answers:
serg [7]2 years ago
6 0

Answer: B.) 32.154 in²

Step-by-step explanation: divide 6.4 by 2 to get the radius then it is 3.2

then the formula to find the area of a circle is Area = πr²

π = 3.14

so... Area= 3.14x3.2²

                = 3.14x10.24

                = 32.1536

then when u estimate the value u get 32.154 in²

DedPeter [7]2 years ago
3 0

Answer:

B. 32.154 in²

Step-by-step explanation:

A= 3.14 * r^2

A= 3.14 * 3.2^2

A= 32.154

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What is the third angle of a right triangle if one of the angles measures 51.
Elodia [21]

Answer:

39

Step-by-step explanation:

The short answer is 39.

Every triangle has 180 degrees. There are no exceptions to this rule.

Since a triangle has 3 angles, all three together must add up to 180o

A right angle = 90 degrees always.

You are given 51 degrees as your second angle

The third one is x

x + 51 + 90 = 180                   Total of three angles must be 180

x + 141 = 180                           The left has been added to give 141

x = 180 - 141                            Subtract 141 from both sides

x = 39                                     The third angle = 39    

3 0
3 years ago
Complementary and supplementary angles please answer please
kari74 [83]

Answer:

m<MON = 57

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3 0
3 years ago
You exercise for one hour each day and you burn 8.5 calories per minute. If you graphed the number of calories you burned as the
mezya [45]
For every minute you exercise you burn 8.5 calories. It's a linear pattern, so the graph would be a line.
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4 0
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Step-by-step explanation:

4 0
3 years ago
Find for x<br><br> 1/5x + 1/3= 3(2/3x -2)
topjm [15]

Answer:

The value of x  for the given expression is  (95/27)

Step-by-step explanation:

Here, the given expression is:

\frac{1}{5} x + \frac{1}{3}   = 3(\frac{2}{3}x -2)

Now here  solving for the value of x , we get

\frac{1}{5} x + \frac{1}{3}   = 3(\frac{2}{3}x) -6\\\implies\frac{1}{5} x + \frac{1}{3}   = 2x -6

Now, taking the variable terms on 1 side, we get

\frac{1}{5} x   - 2x   = -6 -  \frac{1}{3} \\\implies\frac{x  - 10x}{5}   = -(\frac{6(3)  +1}{3} )

or, \frac{-9x}{5}   = -\frac{19}{3}   \implies x  = \frac{19}{3}  \times\frac{5}{9}   = \frac{95}{27}

Hence,  the value of x = (95/27)

6 0
4 years ago
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