1/√6 - √11 + √5
LCM = √6
(1 - (√6)*(√11) + (√5)*(√6) ) / √6
(1 - √(6*11) + √(5*6) )/ √6
Rationalize the surd by multiplying top and bottom by √6
((1 - √(6*11) + √(5*6) )/ √6) * (√6/√6)
(√6 - √(6*6*11) + √(5*6*6)) / √6
(√6 - 6√(11) + 6√(5)) / 6
So answer is:
(√6 - 6√11 + 6√5) / 6
The answer is B. 25 students from each grade. This is because it will be the most accurate answer of what the school dance will be.
Answer:
x=8
Step-by-step explanation:
Let's say this mystery number is x.
6 times this x is 16 less than the square of x so we can write this as:
We can then re-arrange this into a quadratic and simplify it so:
x=8, x=-2
And since the question is asking for the positive solution,
x=8
Answer:
-12n² - 11n + 15
Step-by-step explanation:
You multiply the -n with both 12n and 11, i.e., you distribute it over the terms in the brackets.