Answer: 30, 60, 90 triangle ==> Option 3
Step-by-step explanation:
Lets say Angle A is the angle opposing the line of a triangle that has the length of 6. Lets say Angle B is the angle opposing the line of the same triangle that has the length of 
.
sin A=6/12=1/2
sin A=30 degrees.
sin B=
=
sin B=60 degrees.
Hence, triangle is 30, 60, 90 triangle ==> Option 3
Ok so we have 7:00 pm and she spends 12 more hours over.
Now lets count up 12 hours
=19
You could also just do 7+12! :)
So therefore, she spend 19 hours had her friends house! :D
Hope this helps!
We calculate this like this:
where x is the desired number. 4 percent of x is 56
here i multiplied both sides by 100
I divided both sides by 4, then on the left hand side only x is left!
The answer is 1400
3 is the greatest common factor, because both numbers are divisible only by 3.
