Multiply first formula by 2, then do formula 1-formula 2
Answer:
The equivalent expression is 
Step-by-step explanation:
Given: 
We need to simplify the expression. We will distribute radical with each term inside the parentheses.

Distribute the radical



Now we will simplify the negative exponent.

Hence, The equivalent expression is 
Answer:
3 m/s/s
Step-by-step explanation:
F = ma
28 = 4m
m = 7
m is constant throughout
21 = 7a
a = 3
3 m/s/s
Answer:
they are congruent because they are corresponding angles
Step-by-step explanation: