What grade of math is this? I’ll answer I just need to know cause a lot of chapters could be related to this
1. 6x-15
2. 18x-55
3. 7.2x+2.3y-2
Answer:
40°
Step-by-step explanation:
180-(57+43)=100°
which mean the angle at the top =100°
180-100=80°
x=80/2
x=40
Answer:
2.75
Step-by-step explanation:
Many square roots, cube roots, etc are also irrational numbers. Examples:
√3 = 1.7320508075688772935274463415059 (etc)
√99 = 9.9498743710661995473447982100121 (etc)
Mn - 4m - 5n + 20
(mn - 4m) + (-5n + 20)
m(n - 4) + (-5n + 20)
m(n - 4) - 5(n - 4)
(m - 5)(n - 4)
So mn - 4m - 5n + 20 completely factors to (m - 5)(n - 4)
