You need to use the law of cosine:
B^2 = A^2 + C^2 - 2ACcos(b)
55^2 = 90^2 + 50^2 - 2(50)(90)cos(b)
0.841666 = cos(b)
b = 32.68
Answer:
17
Step-by-step explanation:
5-4b ; b=-3
- substitute b= -3 into the expression
5-4×(-3)
- multiply the numbers
(-4×(-3)=+12) 5+12
- add the numbers
(5+12=17)
SOLUTION: 17
Answer:
Step-by-step explanation:
.
Answer:
See explanation below
Step-by-step explanation:
The given triangle is a right angled triangle.
The triangle consists of three sides namely the hypotenuse (longest side), the opposite and the adjacent.
The slant side of the triangle is the hypotenuse which is also the longest side
The side facing the angle theta is the opposite (the height of the triangle)
The base of the triangle is the adjacent.
The angle theta shown is the angle of elevation of the triangle
(6 - 3)/(-1 +4)= 3/3= 1 is the slope
y - 3 = x + 4
y = x + 7
