Answer:
Emily has a higher relative score since her z-score is higher. This would mean she scored further above the mean than Xiaoyu.
Step-by-step explanation:
Find the z-scores by subtracting the score they got by the mean and then dividing by the standard deivation of their respective exams.
Xiaoyu:
z = 
= 1.5
Emily:
z = 
= 2.2
______
Emily has a higher relative score since her z-score is higher. This would mean she scored further above the mean than Xiaoyu.
The answer is neither.............
Solve for the first variable in one of the equations, then substitute the result into the other equation.
Point form: (3, -3)
Equation form: x = 3, y= -3
Answer:
93.7 miles
Step-by-step explanation:
This problem can be represented as a right angled triangle. The distance between the final point and the starting point is the hypotenuse.
We need to find the hypotenuse. We can use Pythagoras rule:
where opp = opposite side to the angle considered
adj = adjacent side to the angle considered
This implies that:
The car is 93.7 miles far from its starting point.
