I can do it using trigonometry.
Draw a line from O to the point where the circle touches the base line. This will be at right angles to EF and will have length 40. Then draw a line from A parallel to the base to meet OG at H.
consider triangle OAH:-
side OH = 40-25 = 15 cm
cos < AOH = 15/40 giving m < AOH = 67.976 degrees
So m < AOB = 67.976 * 2 = 135.95 degrees
in radians this is 2.37 radians (answer)
Part B:-
Answer:
3
Step-by-step explanation:
4 ^2+x^2=5^2
5^2-4^2=9
square root of 9=3
Answer:
-4 < x ≤ 8
Step-by-step explanation:
-4 is less than x translates to ...
-4 < x
x is less than or equal to 8 translates to ...
x ≤ 8
You want x in the middle of your compound inequality. All you need to do is write these using x only once:
-4 < x ≤ 8
Answer:
1
Step-by-step explanation:
The slope is -4/9. The y-int. is -3.