PLS HELP pls explain im confused
1 answer:
Answer:
f(x) = 4x 1 < x ≤ 6
f(x) = 2.50x x > 6
(Also see image attached)
Step-by-step explanation:
The function f(x) is the cost for x hours of whatever work
Considering the 3 rows of the table, the first row has already been filled in and it states that if the number of hours is one or less, the cost is 0
We have to fill in the rest
2nd to sixth hour is 4 per hour so this can be represented as
f(x) = 4x 1 < x ≤ 6
Essentially this states that if the number of hours is more than 1, the cost is $4 per hour pro-rated if necessary)
For the last row we have
f(x) = 2.50x x > 6
Note that the tricky part here is trying to figure out when the second hour starts. The second hour starts immediately after passage of exactly one hour Thus if the total time worked is 1 hour and 15 minutes, you will still be charged for the 15 minutes over and above the first hour is $4 per hour. That means you will be charged for 15 minutes which is 1/4th of the second hour and this will cost you $1
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Step-by-step explanation:
Knowing, any two vector sides of a parallelogram sharing the same initial point, we can find the area of parallelogram that two vectors are shaping, using the cross product of these two vectors a×b, where the area is given by
Area= |a×b| ___ (1)
From the given points,we may choose any three of them such and find a two vector and expresses the sides of parallelogram " or one side and a diagonal of parallelogram" ,we may choose for example B ,C and D.
Moreover, we may choose point B, to be common point for the two sides " the initial point of two vector" thus we need to find vector BD and vector BC .
Calculations are given in picture.
