Answer:
5
Step-by-step explanation:
you add then all together to get 5
Answer:
7√6 - 5√7
Step-by-step explanation:
5√7 + 12√6 - 10√7 - 5√6 (rearranging)
= (5√7 - 10√7) + (12√6 - 5√6) (factor out √6 and √7 respectively)
= (5 - 10) √7 + (12 - 5)√6
= -5√7 + 7√6 (rearrange)
= 7√6 - 5√7
Answer is 750
Explanation; because 500 + 250 = 750
Answer: 
Step-by-step explanation:
The exterior angles of a polygon add to 360 degrees, so the sixth angle measures 
Answer:
No, it is not.
Step-by-step explanation:
The decimal value of 12/4 is 3
The decimal value of 3/12 is 0.25