Answer:
Solve x2 + 12x = –20 by completing the square.Add to both sides of the equation. The value of in this equation is 36Write the left side of the equation as a binomial squared. The left side of the equation becomes (x+6)2.Use the square root property of equality.Isolate the variable: x = -10 and -2
Step-by-step explanation:
Answer:
6
Step-by-step explanation:
2,400 divided by 400 = 6
Y=12
x=6
The triangle is a 30-60-90 triangle!
Answer:
0.0021
Step-by-step explanation: