Answer:
3 or 6/2
Step-by-step explanation:
when there are two subtraction signs it can be taken as a plus sign
1/2 + 5/2
1/2 + 5/2 = 6/2
6 / 2 = 3
3 is your answer
<span>B. sam forgot to multiply.
The correct answer is
</span> x^2*y=(7^<span>2)*(9)=49*9=441 </span>
Answer: 0.4758
Step-by-step explanation:
Given : Mean : 
Standard deviation : 
Also, the new population of pilots has normally distributed .
The formula to calculate the z-score :-

For x=130 lb .

For x=171lb.

The p-value =

Hence, the required probability : 0.4758
The vertex of the graph is (2,-4). It is a minimum as it is the lowest point on the parabola facing upwards. This would be option C.
Answer: A: there is not enough evidence to support a relationship between lunch preference and role at school