Answer:
Step-by-step explanation:
Since this is a 30-60-90 triangle, we know that the sides have the following characteristic:
The side opposite to 30 degree angle: n
The side opposite to 60 degree angle: 
The side opposite to 90 degree angle: 2n
Since we know that 7 is opposite to 30-degree, and x is opposite to 60 degree, than we know that x =
Answer:
2530
Step-by-step explanation:
First Round each number to the nearest 10s
503 into 500
472 into 470
499 into 500
539 into 540
522 into 520
then add the numbers we made
500+470+500+540+520=2530
the real answer is 2535 so its close
Coplanar
do not intersect
answer is paralell lines
8/(2-√ 12) Both sides multiplied by (2+√ 12)
16+8√ 12/4-12
-(16+8√ 12)/8
The new denominator is 8 and the fraction has a negative sign
