Answer:
56
Step-by-step explanation:
Answer:
Step-by-step explanation:
a) The sum of the angles in a triangle is 180 degrees. This means that
Angle A + angle B + angle C = 180
Therefore,
3x + 28 + 5x + 52 + 2x - 10 = 180
Collecting like terms, it becomes
3x + 2x + 5x + 28 + 52 - 10 = 180
10x + 70 = 180
Subtracting 70 from both sides of the equation, It becomes
10x + 70 - 70 = 180 - 70
10x = 110
Dividing both sides of the equation by 10, It becomes
10x/10 = 110/10
x = 11
b) angle C = 2x - 10 = 2 × 11 - 10
Angle C = 22 - 10 = 12 degrees
Im pretty sure its b im soo sorry if im wrong.
Answer:
B
Step-by-step explanation:
Answer:
9.49 units at an angle of 71.6° with the horizontal
Step-by-step explanation:
Magnitude: [x^2 + y^2]^(1/2)
(3^2 + 9^2)^(1/2)
(90)^(1/2) = 3root(10) = 9.49
Direction:
Angle with the horizontal: tan inverse (y/x)
tan inverse of (9/3)
tan inverse of 3 = 71.6°
