Answer: 240 seconds OR 4 minutes
Step-by-step explanation:
Length of the train = 1 km
Length of the tunnel = 1 km
Therefore, length of the train + length of the tunnel = (1 + 1) km = 2 km
= 2000 m
Speed of the train = 30 km/hr = 8.333 metres per second
Therefore, time taken by the train to cross the tunnel = 2000 m/ 8.333 m/sec.
= 240 seconds = 4 minutes
The answer is 7. 8P=4 3q=21. you add those and get 25 then subtract 18 and get 7
1) √72z² = 6z √2 B.
2 * 6 * 6 = 72
2) C. √6
3 * 3 √6 - 4 * 2 √6 = 9√6 - 8√6 = √6
Answer:
Only one says the mean s higher than the median, so choose that one.
Step-by-step explanation:
Putting them in order gets yout he following list
$99,000
$106,000
$122,000
$124,000
$130,000
$131,000
$114,000
$497,000
$450,000
The average changes if you increase or decrease any of the prices, thought he median does not unless you mess witht he middle value 130,000. Since it mentions the outliers lets look at those. The outliers are the last two because they are more than 3 times the next highest. So, increasing or decreasing these will effet the average in the same way. Also, keep in mind what the median is, and if the verage as is is higher or lower than it., that pretty much answers your question.
V=hpir^2
d/2=r
5/2/2.5
h=7
V=7pi2.5^2
v=7pi6.25
V=43.75pi
aprox pi=3.141592
V=137.44465
V=43.75pi ft^3 or aprox 137.44465 ft^3
