I'm not sure exactly which type you are meaning since there are four types of expansions, but depending on which specific type here are your answers! :)
The total number of photos on Hannah's camera is a linear
2 answers:
Answer:
The linear function is y = 44 + 24x
The rate of change of the linear function is 44.
Step-by-step explanation:
Hannah already had 44 photos in her camera so this is the initial value of the linear function.
She took 24 photos each day for 6 days. Which means she took:
24 x 6 = 144 photos in those 6 days.
We multiplied 24 with the number of days she took the photos so, considering 'x' as the number of days we can write '24x' to represent the number of photos she took. the linear function can be represented as:
y = 44 + 24x
To find out the rate of change, we need to differentiate this equation. So,
The rate of change of the linear function is 44.
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Answer:
Step-by-step explanation:
1. Add data into excel and name both the columns
2. Select top cell and press Ctrl+T to convert data into table
3. Click on any cell on the table and click pivot table in the 'Insert' tab. You will get a pivot table frame.
a. Which exam did most students attempt?
i. Move 'Test name' field to row in the pivot table. Also move test scores field to the value table.
ii. This by default will give you the sum of scores. Click on the field under 'value' table and change it from 'sum of values' to 'count of values'
<em><u>The answer is GMAT taken by 13 students</u></em>
<em></em>
b. Which exam has the highest average score?
i. From the pivot table created in part a, change the field setting to 'Average' instead of count.
<u><em>The answer is GMAT with 499.07 average</em></u>
<u><em /></u>
c. Use the pivot table to determine the exam attempted by the student with highest score
i. In the pivot created above, change field setting to 'Max'
<u><em>The answer is MCAT with 589</em></u>
What is the exam attempted by the student with lowest score.
i. Change the field setting in the pivot to 'Min'
<u><em>The answer is GRE with 267</em></u>
<em></em>
<em></em>
<span>Let x be the number of songs downloaded.
Each song is $1.29; the total cost would be found by multiplying the cost by the number of songs, or 1.29x.
This cannot be more than 20, so we set this less than or equal to 20:
1.29x ≤ 20.
<u>To solve this, we divide both sides by 1.29: </u>
</span>
<span> ≤ </span>
<span>;
x ≤15.5.
We <u>cannot download half of a song</u>, so we round this down to 15 (although the number rounds up mathematically, he would not have enough money to download 16 songs). This means he can download at most 15 songs.</span>
Each song is $1.29; the total cost would be found by multiplying the cost by the number of songs, or 1.29x.
This cannot be more than 20, so we set this less than or equal to 20:
1.29x ≤ 20.
<u>To solve this, we divide both sides by 1.29: </u>
</span>
x ≤15.5.
We <u>cannot download half of a song</u>, so we round this down to 15 (although the number rounds up mathematically, he would not have enough money to download 16 songs). This means he can download at most 15 songs.</span>