Answer:
The directional derivative of f at A in the direction of 
AD is 7.
Step-by-step explanation:
Step 1:
Directional of a function f in direction of the unit vector 
is denoted by 
,
.
Now the given points are
,
Step 2:
The vectors are given as
AB = (10-8, 9-9),the direction is
AC=(8-8,10-9), the direction is
AC=(11-8,13-9), the direction is
Step 3:
The given directional derivative of f at A 
is 9,
The given directional derivative of f at A 
is 2,
The given directional derivative of f at A 
is
The directional derivative of f at A in the direction of is 7.
Answer:
a) 122.5 m ; b) 10 s
Step-by-step explanation:
Just use the given equation and plug in what you know.
a)
d = 4.9t^2
d = 4.9(5^2)
d = 4.9 * 25
d = 122.5 m
b)
d = 4.9t^2
490 = 4.9t^2
100 = t^2
t = 10 s
When you need to round a number. First you need to look at the placement number that the question is asking to round to the nearest. In this case it's the nearest hundred.
3,130,<u>6</u>49 the 6 is in the hundreds place. Now look to the number to the right of that number 3,130,6<u>4</u>9 that's the number that tells you if you will round up or down. If the number is 5 or more you round up, if it's less than 5 you round down.
In this case the 4 is less than 5 so you round down.
So your answer would be <u>3,130,600</u><u />
Hope this helps. :)
Well you could try to refresh the computer by restarting it.
