Answer:
-15/6
Step-by-step explanation:
If you look at the first number in each point, the x coordinate, you see the 2nd point is 6 forward from the 1st point. Now the 2nd number is the y coordinate, and you can see it goes down 15 from the 1st coordinate. So y/x is the slope.
It's a right angle, which is 90°, 90°-77°=13°
Answer: 25, 31 and 37
Step-by-step explanation:
(2n-1)= 19, 21, 23, 25, 27, 29, 31, 33, 35, 37
(3n+1)= 19, 22, 25, 28, 31, 34, 37,
Answer:
Step-by-step explanation:
Answer:
b = 108
c = 72
Step-by-step explanation:
The triangle formed by the two tangents is an isosceles triangle.
180 - 72 = 108
108/2 = 54
The other two angles in the triangle are equal to 54 degrees.
A tangent always meets the radius line at a right angle. Therefore, the radius line (between b and c) meets the tangent at 90 degrees.
90 - 54 = 36
Therefore the other two angles of 'b' triangle are equal to 36 degrees.
36 x 2 = 72
180 - 72 = 108
b = 108
And therefore b is equal to 108 degrees.
b + c = 180 (because a straight line is always equal to 180 degrees)
180 - 108 = 72
So c = 72
