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2 years ago

Find the circumference

Mathematics

2 answers:

notsponge [240]2 years ago

5 0

Answer:

$31.42 \: cm$

Step-by-step explanation:

$C=\pi d$

$C=2\pi r$

$C=2\pi \times 5$

$C=10\pi$

$C=31.41592...$

DiKsa [7]2 years ago

3 0

$answer \\ 31.4 \: cm \\ solution \\ r = 5 \: cm \\ d = 5 \times 2 = 10 \: cm \\ circumference = \pi \: d \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 3.14 \times 10 \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 31.4 \: cm \\ hope \: it \: helps$

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Can two lines be drawn from a point not on a line that will meet the line at a right angle? at a 45° angle? explain each answer.

vichka [17]

I believe the the correct answer would be yes. Two lines can be drawn from a point that is not collinear with a certain line that will meet the line at a right angle or 90 degree angle and at an angle of 45 degrees. We can freely draw any line that would pass through a given point and would cross a given line at any direction giving us different angles and this would include a 90 and 45 degree angle.

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2 years ago

Which expression is equivalent to 2 (×+7)-18×+4/5

Ksivusya [100]

Answer:

14.8-16x

Step-by-step explanation:

2x+14-18x+0.8

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3 years ago

There were 3 apple, 1 mixed fruit, 2 grape, and 4 tropical fruit juice boxes in the cooler at the picnic. What is the probabilit

goldenfox [79]

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6 0

2 years ago

Read 2 more answers

What is the average rate of change of f over the interval -7 < or equal to x Give an exact number

Annette [7]

Answer:

$\frac{4}{3}$

Step-by-step explanation:

The average rate of change can be found by using the following formula

$\frac{f(x_{2}) - f(x_{1}) }{x_{2} - x_{1}}$

Since the interval goes from -7 to 2, we should find the y-values that correspond to x=-7 and x=2.

By inspection of the graph, we can clearly see that when x is -7, y is -7 as well and when x is 2, y is 5.

Now that we know this, we can simply plug these values into the formula!

$\frac{f(2) - f(-7) }{2 - (-7)} = \frac{5 - (-7)}{2 - (-7)} = \frac{5 +7}{2+7} = \frac{12}{9} = \frac{4}{3}$

Good luck!

3 0

2 years ago

Solve for x 2/(7x) = 6/5 5/21 -21/5 21/5 I don't know - 5/21

djverab [1.8K]

The answer is: [A]: " $\frac{5}{21}$ " .
________________________________________
Given:

2/ (7x) = 6/5;

→ (6/5) * (7x) = 2 ;

42x / 5 = 2 ;

42x = 2*5 ;

42x = 10 ;

42x /42 = 10/42 ;

x = 10/42 = (10÷2) / (42÷2) = 5/21 ;

x = $\frac{5}{21}$ ;

→ which is: Answer choice: [A]: " $\frac{5}{21}$ " .
__________________________________________________

7 0

2 years ago