50 degrees because 50+50= 100 +80 = 180 and there is 180 degrees in a triangle
La of sine:
sinC/c = sinB/b==> sin 37°/8 = sin B/12 ==> sin B = 0.903
arcsinB or sin⁻¹ B = 64.5°, & sin (B°) = sin (180° - B°), then
sin(64.5) = sin(180°-64.5°) ==> B = 64.5° or 115.5°
Answer:
its sophisticated but answer is 3
Step-by-step explanation:
you have to dive deep into it and research
Answer:
Step-by-step explanation: Perimeter is distance around the outside so 8+8+5+5=26 units
Area - I'll get back with you
The trick is to write appropriate equations and then solve the system of equations you've created.
"sum of two numbers is -5:" x + y = -5
"difference is -1:" x-y = -1
Add these two equations together. This will cause y to drop out, and you will be left with an equation in x alone:
2x = - 6, so x = -3. Subst. -3 for x in either equation, above, and find the corresponding y value.
Then write your solution as (-3, y ) (write in your value for y).
