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2 answers:
<u>Answer:</u>
The correct answer is
<u>Step-by-step explanation:</u>
We are given the following expression and we are supposed to simplify it:
.
As we can see we have a term with under root in both the numerator and denominator of the given fraction. So we will multiply both the numerator and the denominator by this conjugate, where the common factor is then cancelled and hence we are left with:
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Answer:
<h2>a) approximately 133 graduates</h2><h2>b) approximately 120°</h2>Step-by-step explanation:
a) the number of graduates planning to continue studying :
= (37 1/2% + 12 1/2% + 16 2/3%) × 200
= (37.5 + 12.5 + 16.666666666667)×2
= 133.333333333334
…………………………………
b) the measurement of the angle representing those who plan to work :
= (360× 33 1/2)÷100
= (360× 33.333333333333)÷100
=119.999999999999
The formula for an arithmetic sequence is as follows:
In this formula, represents the
th term of the sequence and
represents the common difference between each term.
Plug in the known values.
Subtract.
Multiply.
Add.