Step 1
find the a<span>rea of the first cross section
area1=b1*h/2
b1=8 m
h=10 m
area1=6*10/2------> 30 m</span>²
step 2
find the area of the second cross section
area 2=b2*h/2
b2=12 m
h=10 m
area1=12*10/2------> 60 m²
step 3
find <span>the difference in the areas of the cross sections
</span>difference=60-30------> 30 m²
the answer is
30 m²
Answer:
sheesh!
Step-by-step explanation:ummm
50, 66, 73, 74, 75, 75, 76, 76, 81, 81
Remember, the range is when you subtract the lowest number from the highest number :)
Range : 81 - 50 = 31
Remember, the median is the middle number of an ordered data set from least to greatest.
Median : 75
Remember, the mode is the number that is on there the most.
Mode : 75, 76, 81 are all considered to be modes. However, if that is not one of the answer options, then your answer would be : There are not modes.
~Hope I helped!~
Answer:
y=3x
Step-by-step explanation:
If I am wrong sorry.
Answer:
The distance between the ships is changing at 42.720 kilometers per hour at 4:00 PM.
Step-by-step explanation:
Vectorially speaking, let assume that ship A is located at the origin and the relative distance of ship B with regard to ship A at noon is:
Where and are the distances of ships A and B with respect to origin.
By supposing that both ships are travelling at constant speed. The equations of absolute position are described below:
Then,
The rate of change of the distance between the ship is constructed by deriving the previous expression:
Its magnitude is determined by means of the Pythagorean Theorem:
The distance between the ships is changing at 42.720 kilometers per hour at 4:00 PM.