Answer:
Please check attachment for graph
Step-by-step explanation:
B. With hawaii airline = -0.300
Without hawaii airline = 0.197
With hawaii airline
EX = 475.3
EY = 157.17
XY = 8042.11
X² = 26883.55
Y² = 3159.375
The correlation coefficient
= 72378.99-74702.9/7737.421
= -2323.91/7737.421
= -0.300
Without hawaii airline
EX = 396.9
EY = 152.11
EXY = 7645.406
X² = 20736.99
Y² = 3133.772
= 790.789/4021.161
= 0.197
Answer:
See attachment
Step-by-step explanation:
To graph the inequality y>3, we have to graph the corresponding linear equation, y=3 with a dashed line.
We then shade above to obtain the graph of the corresponding inequality y>3.
The graph is shown in the attachment.
Answer:
d) 40 sec
Step-by-step explanation:
We have been given that the height h, in feet of a piece of cloth tied to a waterwheel in relation to sea level as a function of time, t, in seconds can be modeled by the equation . We are asked to find the time it will take for the waterwheel to complete one turn.
To solve for time we need to find the period of the given cosine function.
We know that general form of a cosine function is in form , where,
a = Amplitude,
We have been given . Substituting this value in period formula, we will get:
Therefore, it will take 40 seconds for the waterwheel to complete one turn and option 'd' is the correct choice.