Sickle-cell disease is common in tropical and sub-tropical regions because being a carrier, carrying a single sickle-cell mutation (sickle cell trait), affords some resistance to malaria.
<span>y=x-50
where y is the reading test score and and x is iq score.
This can be found intuitively. Since each point in IQ should increase the score by one point, we know the slope should be 1. Then we use the fact that reading test score is just iq shifted down by 50. This leads to the subtraction of 50.</span>
Answer:
These two forces are called action and reaction forces and are the subject of Newton's third law of motion. Formally stated, Newton's third law is: For every action, there is an equal and opposite reaction. The statement means that in every interaction, there is a pair of forces acting on the two interacting objects.
