The distance formula is the square root of (x1-x2)^2+ (y1-y2)^2
So it would be square root [ (-2-3)^2 + (6-(-2))^2]
So it would be square root(25+64)
Square root(89)= 9.433
Solutions to the equation are 5, -6
Step-by-step explanation:
- Step 1: Equation is √(x² + 2x - 25) = √(x + 5). Square both sides to simplify the equation
⇒ x² + 2x - 25 = x + 5
⇒ x² + x - 30 = 0
⇒ x² + 6x - 5x - 30 = 0
⇒ x(x + 6) - 5(x + 6) = 0
⇒ (x - 5)(x + 6) = 0
⇒ x = 5, -6
Answer:
84 people
Step-by-step explanation:
create a proportion
8 x
----- = ---------
12 126
solve.. cross multiply
128x8 =1008
1008/12 =84
2 to the first is 2 because there is only one 2