They have some of the same numbers
Answer:
cos60° = 
Step-by-step explanation:
Using the cofunction identity
• cos(90 - x)° = sinx°, hence
sin30° = cos(90 - 30)° = cos60° =
To find y you must recognize that 141+3y=180 . You know this since half of a circle is 180, and a line is basically half a circle if you arc from end point to end point.
You can then subtract 141 from both sides,
3y = 39
Then divide both sides by 3,
y=13
You would want to use 39° for 3y° since 3·13= 39.
A triangle can only contain 180°, so you would add 68 and 39 together and then subtract this from 180 to give you x.
68 + 39 + x = 180
107 + x = 180
x = 73
this image will help you with the vocabulary you need
Answer:
f(0)=4
Step-by-step explanation:
There is no variables so all we have to do is -3+7 which is equal to 4.
so f(0)=4
Hope it helps :)
Just sitting here waiting for brainliest.
