Which of these sets of angle measures could be three angles in a triangle
a) 40° , 50°, 60°
b) 50°, 60°,70°
c) 60°, 70°, 80°
d) 70°, 80°,90°

Jack did 3/5 of all problems on his weekend homework before sunday. on sunday he solved 1/3 of what was left and the last 4 problems. how many problems were assigned for the weekend?

I’m stuck on this equation, anyone got the answer?

Rewrite the following quadratic functions in intercept or factored form. show your work. f(t) = 20t^2 + 14t - 12