Answer:
14.4
Step-by-step explanation:
pythagorean theorem
The answer is D because there all different
Answer:
Area ∝ Length.
Step-by-step explanation:
If the length of a rectangle is L and width is W, then the area of the rectangle is given by A = LW.
Now, it is given that the width of a rectangle is constant and it is 6 cm.
Therefore, the relation between the length of the rectangle in cm with the area of the rectangle in cm² will be A = 6L.
So, it is clear from the above relation that Area (A) is proportional with its length (L) and the constant of proportionality is 6. (Answer)
Answer: 
Step-by-step explanation:
Given the angle of 55 degrees, you know that the adjacent side is "x" and the length of the hypotenuse is 20.
Therefore, you need to remember the following identity:
Then, knowing that:
You need to substitute these values into:
Now, you can solve for "x":
Rounded to the nearest hundreth:
The question here is how long does it take for a falling
person to reach the 90% of this terminal velocity. The computation is:
The terminal velocity vt fulfills v'=0. Therefore vt=g/c,
and so c=g/vt = 10/(100*1000/3600) = 36,000/100,000... /s. Incorporating the
differential equation shows that the time needed to reach velocity v is
t= ln [g / (g-c*v)] / c.
With v=.9 vt =.9 g/c,
t = ln [10] /c = 6.4 sec.
