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sammy [17]
3 years ago
7

The Russian ruble coin has a radius of 10.25 mm. What is the circumference in terms of pi ?

Mathematics
2 answers:
Anon25 [30]3 years ago
7 0
The answer should be 64.4, 20.5 is the diameter, you need to multiply the diameter times pi.
Aleksandr-060686 [28]3 years ago
3 0

Answer:

D is the answer.

Step-by-step explanation:

5mc

10mc

10.25mc

20.5mc

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For the problem below, θ is a central angle in a circle of a radius r. Find the length of arc s cut off by θ.
mixas84 [53]

Answer:

Here, we will use the formula from trigonometry which defines a radian

we know that an angle is a radian when the length of the radius of the circle is equal to the length of the arc formed

hence, if the radius is r and the arc is r, the angle (in radians) will be 1

if the radius is r and the arc is 2r, the angle in radians will be equal to:

length of arc / radius = 2r/r = 2 radians

I believe this will explain what is actually happening in these type of questions

So, the equation:

Θ(in radians) = s / r (where the length of arc is s and the radius is r)

π/4 = s / 12

s = 3π or 9.42 inches

4 0
3 years ago
Which of the following ordered pairs
ozzi

The ordered pairs  that make this equation true is (4, 10)

A linear equation is given by:

y = mx + b;

where y, x are variables, m is the slope of the line and b is the y intercept.

Given the linear equation: y = 10x - 30:

At (1, -12): y = 10(1) - 30 = -20 ≠ -12

At (8, 1): y = 10(8) - 30 = 50 ≠ 1

At (4, 10): y = 10(4) - 30 = 10

At (6, 20): y = 10(6) - 30 = 30 ≠ 20

The ordered pairs  that make this equation true is (4, 10)

Find out more at: brainly.com/question/13911928

5 0
3 years ago
An ancient Sicilian legend says that the barber in a remote town who can be reached only by traveling a dangerous mountain road
faust18 [17]

Answer:

No there cannot be.

Step-by-step explanation:

In explaining this question, I would like us to take into account who the barber is,

" the barber is the one who shaves all those, and those only, who do not shave themselves".

This barber cannot be in existence because who would shave him? If he should shave himself then there is a violation of the rule which says he shaves only those who do not shave themselves. If he shaves himself then he ceases to be a barber. And if he does not shave himself then he happens to be under those who must be shaved by the barber, because of what the rule says. But then he is the barber.

This lead us to a contradiction.

Neither is possible so there is no such barber.

4 0
4 years ago
A right triangle with a keg 3mi and hypotenuse 5mi
kolbaska11 [484]

Answer:

Step-by-step explanation:

this is a famous triangle  :)   known as the  3-4-5 triangle...

it has an angle of 53.73... on the side with the 3

and an angle of 36.869... on the side with the 4  

hope that helps with what ever the question is  :)

4 0
3 years ago
Which is the best answer to this question
sattari [20]
The answer is G, because you need to put the variables that go together with the same person. 
7 0
3 years ago
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