Answer: its 49
Step-by-step explanation:
I believe the last one about right triangles. That’s why Pythagorean Theorem works.
9 and 12 have a common factor of 3 so 9/12 = 3/4
Answer:
y=2x+3
Step-by-step explanation:
in third line x = 0 y=2×0+3 =3
Answer:
x = 20
Step-by-step explanation:
The 3 arcs UV, VW, WX form a semicircle, so sum to 180° , that is
4x + 2 + x + 78 = 180
5x + 80 = 180 ( subtract 80 from both sides )
5x = 100 ( divide both sides by 5 )
x = 20
