Complementary angles add to 90o
the other angle = x
the first angle = 3x - 4
x + 3x - 4 = 90
4x - 4 = 90
4x = 94
x = 94/4
x = 23.5
the first angle = 3*23.5 - 4 = 66.5
Answer:
First awnser
Step-by-step explanation:
4x(7-v2)+v7(7-v2)
28-4v2+7v7-v14
Answer:
The area of the rectangle plus the area of the triangle under the line.
Step-by-step explanation:
Third side = (10x + 2 ) - (5x + 2x + 9)
third side = 10x + 2 - 7x - 9
third side = 3x - 7
answer
third side = 3x - 7