Answer:
The solutions are 
Step-by-step explanation:
we have

Complete the square. Remember to balance the equation by adding the same constants to each side


Rewrite as perfect squares

square root both sides


Answer:
30 J
Step-by-step explanation:
W = mg = 3 N
h = 10 m
Potential Energy = mgh = 3*10 = 30 J
Answer:
The slope is "Undefined"
Step-by-step explanation:
Step-by-step explanation:
4x^2 - 20 = 5
4x^2 -25 = 0
4x^2 = 25
2x = 5, or -5
x = 5/2 , or -5/2
Answer:
x = 113
Step-by-step explanation:
Vertical angles are congruent. To the left of 113 would be 67 but x is not.