Answer:
I think it would be B.
Step-by-step explanation:
I'm not 100% sure though.
Answer:
15/49
Step-by-step explanation:
5/7 (3/14 + 3/14)
first combine like terms
3/14 + 3/14 = 6/14
then simplify by 2
6/14 to 3/7
now that both the term inside and outside have the same denominator, multiply
5/7 x 3/7 = 15/49
Your answer would be, <span>No, it is not a valid inference because her classmates do not make up a random sample of the students in the school </span>
2y + 2x = 6
2y - x = 12
Subtract
3x = -6, x = -2
2(-2) + 2y = 6
-4 + 2y = 6
2y = 10, y = 5
Final solution: x = -2, y = 5
Answer:
70 m
Step-by-step explanation:
AB makes a 30-60-90 triangle with the wall.
AC makes a 45-45-90 triangle with the wall.
In a 30-60-90 triangle, the short leg (opposite of the 30° angle) is half the hypotenuse.
In a 45-45-90 triangle, the legs are the same length.
So the distance between the left wall and the laser is 60/2 = 30 m.
The distance between the right wall and the laser is 40 m.
The total distance is therefore 70 m.
