Answer:
72.2 square meter
Step-by-step explanation:
(3.8)(3.8)= 14.44
(14.44)(5)=72.2
To find the mean add up all the numbers and divide. The mean absolute deviation is the difference.
Answer:
a) "ascend"
Step-by-step explanation:
a)
The equation is 
This question is asking for the value of the directional derivative in the direction of -j [since south that's y negative]
So, this is the negative of partial derivative of y. Thus we have:

Now we are at (100,120,1106), we take y value of 120 and put it in the partial:

We take the negative, that is -(-2.4) = 2.4
Since this is positive, we can say the hill is sloping upward at this point, so you will start to ascend.
Answer: (x+5)(x-3)2 = 0
Step-by-step explanation: To write this equation as a polynomial, you must multiply it out.
begin by squaring the binomial, and remember to express this as a trinomial (middle term will be -6x).
Then, to finish the job, multiply that trinomial by the factor x+5. Hope this will help you.