Answer:
50
Step-by-step explanation:
Sorry mate, I can help with 8.) and 9.)
8.) angle T=180-(21+35)
T=180-56
T=124
Angle V=124
Triangle TUV is an isosceles triangle therefore, it has two equal sides and two equal angles.
9.) Angle WSV=21 degree
Triangle TSV is an isosceles triangle therefore, it has two equal sides and two equal angles.
TSV=21+21=42 degree
Had to run, can’t do rest. Hopefully, this helped a bit. Good luck.
Answer:
The two roots of the quadratic equation are
Step-by-step explanation:
Original quadratic equation is 
Divide both sides by 9:
Add 
to both sides to get rid of the constant on the LHS
==> 
Add 
to both sides
This simplifies to
Noting that (a + b)² = a² + 2ab + b²
If we set a = x and b = 
we can see that
= 
So
Taking square roots on both sides
So the two roots or solutions of the equation are
and 
So the two roots are
and
Answer:
Yes, GCF stands for (greatest common factor)
so to find it do this:
List the prime factors of each number.
Circle every common prime factor — that is, every prime factor that's a factor of every number in the set.
Multiply all the circled numbers. The result is the GCF.
Step-by-step explanation:
