Let length of rectangle=x and width be y
.`. area=x*y
now new length=x+12x/10=22x/10
width=y-y/5=4y/5
now .....
new area=new length-new width=22x/10*4y/5
new area=88xy/50
Answer:20x^4+55x^3+15x^2-2/5x^2
Step-by-step explanation:
Answer: The period of the given function is 10
Step-by-step explanation:
The period of a function is the distance required to complete a full cycle (In which the portion of the graph repeats itself however in both direction)
Since, by the given diagram,
After 10 unit, the one cycle of the function is completed,
⇒ The period of the given function is 10.
The number of users on new social media site increase as 21, 25, 30, 36,
The average rate of change is given by 5.
The function f (t) = 12 (1.2) ^t show how the rate of users increases in weeks.
<h3>What is Average?</h3>
Average of the values is the ratio of total sum of values to the number of values.
Here, f (t) = 12 (1.2) ^t is defined in the range of (3, 6)
So the value of the function in its range is given by
1) f (3) = 12 (1.2) ^3
= 21
2) f (4) = 12 (1.2) ^4
= 25
3) f (5) = 12 (1.2) ^5
= 30
4) f (6) = 12 (1.2) ^6
= 36
Now the average rate of change = sum of all difference in values at every week / max. Difference in interval of range(3,6)
= f(6)-f(3)/6-3
= 15/3
= 5
Thus required average change of rate is 5.
Learn more about average here:
brainly.com/question/24057012
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