9514 1404 393
Answer:
- 28 +10√3
- 81 -30√2
- 54 +36√2
Step-by-step explanation:
It is useful to remember the form for the square of a binomial.
(a +b)² = a² +2ab +b²
(a -b)² = a² -2ab +b²
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1. (5 +√3)² = 5² +2·5·√3 +(√3)² = 25 +10√3 +3
= 28 +10√3
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2. (√6 -5√3)² = (√6)² -2·√6·5√3 +(5√3)² = 6 -30√2 +75
= 81 -30√2
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3. (6 +3√2)² = 6² +2·6·3√2 +(3√2)² = 36 +36√2 +18
= 54 +36√2
-6x+3 u have to add same integers and subtract different integers
Answer: Altoona.
Step-by-step explanation:
You know that in that day it snowed 
in Altoona.
Given this measurement as a mixed number, you need to convert it to a decimal number. Then:
It that day it snowed 
in Bethlehem.
Then, you can notice that:
Therefore, you can conclude that the city that received less snow that day was: Altoona.
Answer:
c=13
Step-by-step explanation:
pythagoras theorem
a^2+b^2=c^2
12^2+5^2=x^2
169=x^2
x=13
This is one of the few combination of triangle you should really memorize.
Answer:
184 sq cm
Step-by-step explanation:
