Answer: Interval = [103,∞)
Explanation :
A medicine become ineffective if its temperature ever reaches 103 degrees Fahrenheit or more .
So, Interval becomes [103,∞)
i.e. semi-open or semi-closed interval as it includes 
So, we used closed brackets i.e. square brackets and
For '∞' we always use open brackets only.
Answer:
10%
Step-by-step explanation:
The first step is to calculate the decrease
Original price= $41.10
New price= $36.99
= 41.10-36.99
= 4.11
4.11/41.10 × 100
= 0.1×100
= 10%
Hence the percentage decrease is 10%
The amount of money Adelaide paid for the manicure including the tip to the manicurist is $35. So the amount paid by Adelaide includes both the payment for manicure as well as the payment for tip. The percentage of tip given is 20%. Firstly it is necessary to find the amount of tip given. Then only the amount given for the job of manicyre can be easily found.
Amount of tip given to the manicurist by Adelaide = (35 * 20/100) dollars
= 7 dollars
So Adelaide gave $7 as tip to the manicurist.
amount of money paid for the actual manicure job = (35 - 7) dollars
= 28 dollars
So Adelaide paid $28 for the manicure that was done by the manicurist.
<h2>Given:-</h2>
(x+9)(x−5)(x−8)<0
Let f(x)=(x−5)(x+9)(x−8)
Here the critical points are −9,5,8
- Plot these points on a number line. These points divide the number line into 4 intervals.
<h3>Now,</h3>
pick a point from each interval and find the sign of f(x)
Since the inequality given in the question is ′ < ′
the solution is the interval containing
′− ′ sign
Thus, x lies in the interval
<h3>(−∞ ,−9)∪(5,8)</h3>
