Why did the 30-60-90 triangle marry the 45-45-90 triangle

because they were right for each other.

Step-by-step explanation:

1) x=21.213

2) x=24.249

3) x=3

4) i need to see it more

5) x=6.325

6) x=30.984

Step-by-step explanation:

5=812a+9+3

step 1: simplify both sides of the equation.

5=812a+9+3

5=(812a)+(9+3)(combine like terms)

5=812a+12

5=812a+12

step 2: flip the equation.

812a+12=5

step 3: subtract 12 from both sides.

812a+12−12=5−12

812a=−7

step 4: divide both sides by 812.

812a /812 = -7/812

a= -1/116

so the answer is

a=   -1/116