Answer:
6
Step-by-step explanation:
In y = Asin(Bx + C) +D,
|A| is the amplitude
Amplitude: |-6| = 6
43/9 = 4.77777777778
That is because only the most 9's that could fit into 43 is 4 which is 9 x 4 = 36. I can't really show the work, but I think Khan Academy would be a great help!
Answer:

Step-by-step explanation:
We are given that a function

We have to find the derivative of the function

By using 
Differentiate w.r.t x

By using formula


Hence,the derivative of function

Answer:
9,9 hours
Step-by-step explanation:
Answer:
(4, -2) (see attached)
Step-by-step explanation:
Vector addition on a graph is accomplished by placing the tail of one vector on the nose of the one it is being added to. The negative of a vector is in the direction opposite to the original.
__
<h3>vector components</h3>
The components of the vectors are ...
u = (1, -2)
v = (-6, -6)
Then the components of the vector sum are ...
2u -1/3v = 2(1, -2) -1/3(-6, -6) = (2 +6/3, -4 +6/3)
2u -1/3v = (4, -2)
<h3>graphically</h3>
The sum is shown graphically in the attachment. Vector u is added to itself by putting a copy at the end of the original. Then the nose of the second vector is at 2u.
One-third of vector v is subtracted by adding a vector to 2u that is 1/3 the length of v, and in the opposite direction. The nose of this added vector is the resultant: 2u-1/3v.
The resultant is in red in the attachment.