Guys I need help on number 19 and 20.
1 answer:
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Answer:
The graph is shown below.
The time to make the taste to half is <u>4.265 s.</u>
Step-by-step explanation:
Given:
Initial value of the taste is,
Therefore, the quality of taste over time 't' is given as:
Now, when the taste reduces to half,
Therefore,
Taking natural log on both the sides, we get:
Therefore, the time to make the taste to half is <u>4.265 s.</u>
Answer:
Part A: <em>A) The number cannot be 7 as the 7 is a factor of 21.</em>
Part B: As, 5 is only number which is have a cube more than 100 and less than 200.
The Answer is 5
Step-by-step explanation:
Part A Explanation↓
Given,
The number is a prime number.
The square of the number is more than 10 and less than 100.
<em>The number is not factor of 21.</em>
The number is 5.
5 is a prime number.
The square of 5 is between 10 and 100.
<em>5 is not factor of 21. </em>
<em>___________________________________________________</em>
<em>Part B Explanation↓</em>
<em>They are asking to write the puzzle which have answer 5.</em>
<em>The answer is 5.</em>
As, 5 is only number which is have a cube more than 100 and less than 200.