Answer:
A = x^2 + 5x - 14
Step-by-step explanation:
A = L × W
A = (x+7) × (x-2)
A = x^2 + 7x - 2x - 14
Answer:
10 seconds.
Step-by-step explanation:
The velocity at which they are approaching each other = 59 + 41 = 1000 km per second.
Velocity = distance / time
So time = distance / velocity
= 1000 / 100
= 10 seconds.
Answer:
5 + 
Step-by-step explanation:
Given a ±
, then the conjugate is
a ∓ 
Given
5 -
, then the conjugate is 5 + 
9.862 rounded the the nearest tenth in 9.9