B. 3 √3
The shortcuts for a 30 60 90 triangle is that the:
Hypotenuse is 2 times the short leg
The long leg is √3 times the short leg.
Making it 3 √3
Another way is by the Pythagorean Theorem.
a^2+b^2=c^2
3^2+b^2=6^2
9+b^2=36
Subtract 9 from both sides
b^2=27
Square root both sides
b=5.2 or the √27
√27 can be simplified more
An equation that equals to 27 that has a perfect square is 9*3
√9* √3
The perfect square of 9 equals to 3
So 3 √3
It takes Andre 1.25 minutes to swim a lap.
Answer:
Step-by-step explanation:
Any negative (when there is only one of them) will be the least. negatives are smaller than positives.
A fraction is less than a whole number. So far what you have is
___ ___ 3/15 , - 24/30
So now which is bigger? 11 or 11.5
Which would you rather have? 11 dollars or 11 dollars and 50 cents. 11.5>11
The correct order is 11.5 11 3/15 - 24/30
Consider inequality 
This inequality is equivalent to inequality 
This means that 
The greatest integer number n, such that 
when dividing by 7 gives the remainder 4 is 39. Then subtract 7, you get 32, then 25 and so on.
When n=-39, -32, -25, -18, -11, -4, 4, 11, 18, 25, 32, 39 then dividing by 7 the remainder is 4.
Answer: 12 integers.
