Answer:
a) 42°F < x < 176°F
b) The inequality graph is attached.
c) No, This is because at 20° F benzene would not be in liquid form but in solid form.
Step-by-step explanation:
According to the Question,
a) For the benzene to remain in liquid form, the temperature of benzene must be less than the boiling point and greater than the boiling point. Let x be the temperature of benzene, For benzene to remain as liquid, its temperature must be between:
42°F < x < 176°F
b) The inequality graph is attached. The graph shows that the temperature of benzene must be between 42°F and 176°F so that it would be a liquid. The Closed circles represent that it is greater than 2.
c) No, This is because at 20° F benzene would not be in liquid form but in solid form. Because the temperature cannot go below 42 before it freezes, she would not have been able to conduct her research .
Answer:
Step-by-step explanation:
Mean "X"=250
s = 25
n=10
Because Standard deviation is unknown and sample size is small, we must employ the T-distribution
df=n-1 = 10-1
df=9
For 90% confidence, t = 1.833
E=t*s/ = 1.833*(25/
)
E=14.49
The 90% confidence interval is X±E=250±14.49 or 235.51, 264.49
By definition, the perimeter of a square is given by:
Where,
L: length of the sides of the square.
When the sides of the square are tripled, the equation changes as follows:
Then, rewriting the equation we have:
Where,
P: perimeter of the original square.
Therefore, we can conclude that the perimeter is tripled.
Answer:
The perimeter of the square is tripled.