Answer:
y=55
x=70
Step-by-step explanation:
Answer:
60 Hope this helps you :)
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
a perfect square trinomial is

factorized is

so as you can see option A and B can't be, because they have -49y^2 and it has to be plus
so the other options are C and D
in the trinomial a=4 and b=\pm 7
the roots of a^2 and b^2

so it's option d with b=-7

Obtuse triangle if that’s what you’re asking