1. Which is an example of an algebraic expression? 04(3 + 8) 018² 03-a 021.4
2 answers:
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Answer: 2718
Step-by-step explanation:
Given: Mean score = 85
Standard deviation = 5
Let x be the score of a random student that follows normal distribution.
Then, the probability that a student scored between 90 and 95 will be
The number of students scored between 90 and 95 = 0.1359 x (Total students)
= 0.1359 (20000)
= 2718
Hence, The number of students scored between 90 and 95 = 2718
<span><u><em>Answer:</em></u>
d = 25
<u><em>Explanation:</em></u>
To get the value of d, we will need to isolate the d on one side of the equation.
<u>This can be done as follows:</u>
</span>
<span>
<u>First, we will do cross multiplication as follows:</u>
40*15 = 24*d
600 = 24d
<u>Then, we will isolate the d as follows:</u>
24d = 600
</span>
<span>
d = 25
Hope this helps :)</span>
d = 25
<u><em>Explanation:</em></u>
To get the value of d, we will need to isolate the d on one side of the equation.
<u>This can be done as follows:</u>
</span>
<u>First, we will do cross multiplication as follows:</u>
40*15 = 24*d
600 = 24d
<u>Then, we will isolate the d as follows:</u>
24d = 600
</span>
<span>
d = 25
Hope this helps :)</span>