Answer:
(- 3, 6 )
Step-by-step explanation:
The solution is at the point of intersection of the 2 lines
The lines intersect at (- 3, 6 ) ← solution
56/2,8 due to the fact that the speed reduced one hour
Answer:-35
Step-by-step explanation: 7x-5=-35, and an integer is a number that isn't a fraction
Answer:
√(2 - 7x) + 2x = 0
√(2 - 7x) = - 2x
[√(2 - 7x)]² = (- 2x)²
2 - 7x = 4x²
4x² + 7x - 2 = 0
4x² + 8x - x - 2 = 0
4x(x + 2) - (x + 2) = 0
(4x - 1)(x + 2) = 0
4x - 1 = 0 => 4x = 1 => x₁ = 1/4
x + 2 = 0 => x₂ = - 2