Reference angle of -3 radians is α= - 171° 53 min 15 sec .
We know the formula for calculating circular arc
Let l=circular arc which ic according to central angle of the circle α
l=((2R π)/360)α Let l=1 radian and R=1 (unit circle with radius R=1)
1= ((2π)/360)α => α= 360/(2π)= 180/π= 57° 17 min 45sec
Angle of the 1 radian is equal to angle 57° 17min 45sec
According to this
angle of the -3 radians = -3 ( 57° 17min 45sec) = - 171° 53min 15sec
when you count in the clockwise direction.
Good luck!!!
Answer:
7
Step-by-step explanation:
7
Answer:
check image below
Step-by-step explanation:
f of g of x is also known as a composite function and it is mathematically denoted as (f ∘ g)(x) and it means that x = g(x) should be substituted in f(x)
1) 3 people
2) 20 people like mathematics only
3) 7 people like both mathematics and English
<h3>What is set?</h3>
A set is a collection of well defined elements.
Analysis:
number of people in the class = 45
number that like mathematics or English or both = 42
number that like both subject = x
number that like mathematics only = 27 - x
number that like English only = 22 - x
1) number that did not like any subject = 45 - 42 = 3
27 - x + x + 22 -x = 42
49 - x = 42
x = 49 - 42 = 7
2) number that like mathematics only = 27 - 7 = 20
3) number that like mathematics and English = 7
Learn more about set: brainly.com/question/2166579
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Answer:
we need the numbers... or like the coins, or something to solve it with. you need to include what was actually in here pocket lol
