Answer:
(a) V(0) = 50 gal, V(20) = 0 gal
(b)At t= 0 the tank is full.
At t=0 the tank is empty
(c)
Time volume
0 50 gal
5 37.5 gal
10 25 gal
15 12.5 gal
20 0 gal
(d)
Net change of volume = 50 gal
Step-by-step explanation:
Given that the capacity of the tank is 50 gal.
Torricelli's Law gives the volume of water remaining in the tank after t minutes as
(a)
To find V(0), we put t = 0 in the above equation
= 50 gal
To find V(20), we put t =2 0 in the above equation
= 0 gal
(b)
At t= 0 the tank is full.
At t=0 the tank is empty.
(c)
Time V(t)
0 
5 
10 
15 
20 
(d)
Net change of volume = V(0) -V(20)
=(50-0) gal
= 50 gal
Answer:
Part a)
Mean: 13155.6
Mode:None
Median: 12700
Step-by-step explanation:
12700 : 1
15478: 2
12675: 3
11850: 4
13075: 5
Mean :
Mode:
All values are distinct, therefore there is no mode. A mode is value which occurs most frequently.
Median:
Arrange the values in ascending order:
11850 , 12675, 12700, 12075, 15478
The mid value is median: 12700
Part b)
It depends upon the data. In this question the best way to predict how many miles Gina will drive in the next years is by using Median of the data.
The reason is that there is a potential outlier in the data i.e 15478. In case of outlier median tends to give better predictions.
"seven" means ' 7 '
"two" means ' 2 '
"the quantity seven plus two" means ' (7 + 2) '
"one hundred times the quantity ..." means ' <em>100 (7 + 2)</em> '
That's the expression.
One of the rules for handling these things is that you should always
take care of anything inside parentheses first. So do that.
(7 + 2) = 9
Now you can can write the expression like this: ' 100 (9) ' .
That's just <em>900 .
</em>
Answer:
18.84 ft
Step-by-step explanation:
2*3.14*3=18.84 ft
Answer:
B. Brand A $0.21
Step-by-step explanation:
(round to nearest cent)
Brand A: 21.99/105 = .2094 = .21 ( .2094 rounds to .21)
Brand B: 17.99/80 = .2248 = .22 ( .2248 rounds to .22)
Therefore Brand A is a better buy for $0.21 per load
