7/5 - 10/5 = -3/5
I hope this helps.
Answer:
1) 0
2) -6
Step-by-step explanation:
Any number to the ⁰th power is 1.
A negative exponent flips the fraction.
Let x be the degree of angle a.
Angle b: 20+3x
Angle c: 55+x
We know that all angles add up to 180 degrees.
180=x+(20+3x)+(55+x)
180= 5x+75
180-75=5x
105/5=x
21=x
Angle a: 21 degrees
Angle b: 20+3(21) => 83 degrees
Angle c: 21+55 => 76 degrees
Hope I helped :)
Pythagoras
28^2-19^2= 423
Square root of 423 = 20.5669638
Answer = 20.5669638
8 - (2/x)
hope this helped
