Answer:
Tom is incorrect
The cost of using the air pump has increased by 150%
Step-by-step explanation:
Tom is incorrect
percent change = [ (difference between initial and final value) ÷ initial value] × 100
⇒ [ (50 - 20) ÷ 20) × 100 = 150%
Therefore, the cost of using the air pump has increased by 150%
The total number of roots of the given polynomial function is 6.
The given polynomial is
.
We need to determine the total number of roots of the given polynomial function.
What is the total number of roots of the polynomial function?
The number of roots of any polynomial is depended on the degree of that polynomial. Suppose n is the degree of a polynomial f(x), then fx) has n number of roots.
Here, the degree of the given polynomial function is 6.
Therefore, the given polynomial function will be having 6 roots.
To learn more about the polynomial function visit:
brainly.com/question/12976257.
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Answer:
$1.5 unit
Step-by-step explanation:
According to the given situation, the calculation of the unit rate is shown below:-
Candy bars = 6
Amount of candy bars = $9:00
Unit rate

Now we will put the values into the above formula

Which gives result
= $1.5 unit
Therefore for computing the unit rate we simply divide the amount of candy bars by the number of candy bars.
The correct answer is 22 miles because 5+8+9=22
Hope this helped :)
Answer:
1. 72.33.24. none5.none6.97. 08. 4
Step-by-step explanation: