Answer: 8.8 pounds.
Step-by-step explanation:
Hi, to answer this question, first we have to divide the total weight loss in a week (28 kg) by 7 (days in a week).
28 /7 = 4 kg per day
The group lost 4 kg each day.
Finally we have to convert the result into pounds.
Since 1 kg = 2.2 pounds
4 kg x 2.2 = 8.8 pounds.
Feel free to ask for more if needed or if you did not understand something.
To Find :
Position vector at time
and
.
Solution :
r (t) = 2 (t −7)i + 12t j
Putting t = 5 s and t = 8 s, we get :
r(5) = 2( -2 )i + 60j
r(5) = -4i + 60j
r(8) = 2i + 96j
Now, to find speed differentiating the r(t) w.r.t t :

Hence, this is the required solution.
Answer:

Step-by-step explanation:
If we graphed y=1, then it would be a horizontal line where a point would be on (0,1).
A horizontal line has no slope, and the y-intercept for y=1 is one.
Answer:
D) All real numbers greater than or equal to -1
Step-by-step explanation:
The range is at least -1
Answer:
7.5
Step-by-step explanation:
3x+4y=36y=-1/2+8=