Answer:
The distance between two points ( -1,1) and (2,-4) is:
or d = 5.8 units.
Step-by-step explanation:
Given the points
Finding the distance between (-1, 1) and (2, -4) using the formula

substitute (x₁, y₁) = (-1, 1) and (x₂, y₂) = (2, -4)




units
or
units
Therefore, the distance between two points ( -1,1) and (2,-4) is:
or d = 5.8 units.
Answer:
No solution unless you want to solve for an imaginary number which in that case 
Step-by-step explanation:



Here you can stop and say "no solution" since you cannot square root a negative number, but if you want you can still solve for an imaginary number:



Step-by-step explanation:
3 - ( - 5 + 4)
4
- 1 - ( 0 - 2)
1
- 2 - ( 0 - 2)
0
Answer:
Demand quantity: 6.3246
Supply quantity: 4.4721
Step-by-step explanation:
Supply equation:
p = (1/2) * q^2
Demand equation:
p = -(1/2) * q^2 + 30
(p is the price, q is the quantity)
If the price p is equal to 10, then we can calculate:
Supply quantity:
10 = 0.5 * q^2
q^2 = 20
q = 4.4721
Demand quantity:
10 = -0.5 * q^2 + 30
0.5 * q^2 = 20
q^2 = 40
q = 6.3246
Your answer would be B, X+2 Y-1