Answer:
In total there are 50 students.
Step-by-step explanation:
Since in a group of students 20 study account, 21 study mathematics, 18 study history, 7 study account only, 10 study mathematics only, 6 study account and mathematics only and 3 study mathematics and history only, to determine how many student are there altogether the following calculation must be performed:
7 + 10 + 6 + 3 = 26
Account = 20 - 7 - 6 = 7
Mathematics = 21 - 10 - 6 - 3 = 2
History = 18 - 3 = 15
26 + 7 + 2 + 15 = X
50 = X
Therefore, in total there are 50 students.
Answer:
x>-4
Step-by-step explanation:
-8x<32 - First isolate the x by dividing both sides by -8
-8x/-8<32/-8
x>-4
<h2><u>
When you divide or multiply by a negative the inequality sign flips.</u></h2>
<u></u>
The value of the function is x is 7 and 4 are 2 and 12 respectively
<h3>Function and values</h3>
Given the function of the variable x below;
f(x) = 12x+12/x²-1
If the value of x is 7, hence;
f(7) = 12(7)+12/(7)²-1
f(7) = 84+12/48
f(7) = 96/48
f(7) = 2
If the value of x is 4, hence;
f(4) = 12(4)+12/(4)²-1
f(4) = 48+12/15
f(4) = 60/5
f(4) = 12
Hence the value of the function is x is 7 and 4 are 2 and 12 respectively
Learn more on function and values here: brainly.com/question/2284360
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[ Answer ]

[ Explanation ]
- Factor:
(a - 3) + q(a - 3)
-------------------------------------
- Expand
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