Given the function:
To sketch the graph, we calculate some points:
For ease of calculation, pick values of x that are perfect squares.
Similarly:
Similarly:
Next, draw a line joining the points (0,5), (4,7) and (9,8) as done below:
Area of deck= 2(20w)+4(w^2)+2(50w)d
456=2(20w)+4(w^2)+2(50w)
456=40w+4w^2+100w
456=4w^2+140w
114=w^2+35w
0=w^2+35w-114
find what 2 numbers multiply to get 114 and add to get 35 and factor
-3 and 38
0=(w-3)(w+38)
set each to zero
w-3=0
w=3
Answer:
Step-by-step explanation:
We have been that on a standardized exam, the scores are normally distributed with a mean of 200 and a standard deviation of 10. We are asked to find the z-score of a person who scored 181 on the exam.
We will use z-score formula to solve our given problem.
, where,
z = z-score,
x = Random sample score,
= Mean,
= Standard deviation.
Upon substituting our given values in above formula, we will get:
Therefore, the z-score of the person would be .
The amount of the discount was $140.
Answer:
Step-by-step explanation:
My guess is that 10/36 students weren't playing sports.