To equations are equivalent if and only if they have the same solution set.
Solve for both of the equations.
-2x = 10
x = -5 <-- Divide both sides by -2
-5x = 25
x = -5 <-- Divide both sides by -5
Both have the solution -5.
So, yes both are equivalent.
8.7 is already rounded to the nearest tenth
Answer:
might be 3
Step-by-step explanation:
Answer:
The length of side x is 22.91
Step-by-step explanation:
As per law of cosine

Where
degrees
a = 20
b = 27
Substituting the given values in above equation, we get -

Hence, the length of side x is 22.91
Answer:
I got 21sqrt2
Step-by-step explanation: