For this case we have the following functions:
We must find
. By definition of compound functions we have to:
So:
Taking into account that:
Different signs are subtracted and the major sign is placed.
Finally we have to:
Answer:
x y
------ -----
-9 -2
-5 -7
-1 -12
3 -17
ur x's all have a difference of 4, and ur y's all have a difference of -5...so yes, this is linear with a slope of (-7+2) / (-5 + 9) = -5/4
The answer to your question B. 40.
Decimal form: 18.8
Mixed number: -18 4/5
Exact form: -94/5
Answer:
-200
Step-by-step explanation:
ATQ, a+11d=-13 and a+a+d+a+2d+a+3d=24, 4a+6d=24. Solving this, we get a=9 and d=-2. Sum of the first 20 terms is 10*(18+(19)*(-2))=-200
