The side opposite the angle 19 degrees is given by 15sin 19 = 4.9 units, while the side adjacent the angle 19 degrees is given by 15cos 19 = 14.2 units.
Answer:
23/100
Step-by-step explanation:
0.23 means two digits after decimal point so it is 100
then we write 23 /100 and then simplify
23 is a prime number , it can't be simplified
Answer:
It returns the angle whose cosine is a given number.
Step-by-step explanation:
For every trigonometry function, there is an inverse function that works in reverse. These inverse functions have the same name but with 'arc' in front. (On some calculators the arccos button may be labeled arccos, or sometimes cos-1.) So the inverse of cos is arccos etc. When we see "arccos x", we understand it as "the angle whose cosine is x"
cos30 = 0.866 Means: The cosine of 30 degrees is 0.866
arccos 0.866 = 30 Means: The angle whose cosine is 0.866 is 30 degrees.
Use arccos when you know the cosine of an angle and want to know the actual angle.
Answer:
Step-by-step explanation:
- cos = adjacent / hypotenuse
- cos (M) = MN / ML =
/ML = 
/25 = 20/25 = 4/5
Correct choice is C
Answer:
1.16
2.344
Step-by-step explanation:
A. Arc BC is apart of the diameter. The major arc measures 164 so
Arc BC=16
B. Arc BAC means we find the measures BA then find the measures of arc AC and add them.
Measures of BA is 180.
Measures of AC is 164.
