Answer:
6 hours 26 minutes
Step-by-step explanation:
X - 21.5 = <span>x less 21.5
answer
</span><span>d. x less 21.5
</span>hope it helps
Answer:
0.25
Step-by-step explanation:
Since, in the question , it is not mentioned that two balls of any specific colour,
the probability of getting two balls is: 
Answer:
8. yes
9. no
10. yes
Step-by-step explanation:
8. A horizontal line (y=3) is perpendicular to a vertical line (x=0).
__
9. A horizontal line (y=2) is parallel to a horizontal line (y=-1/2). The lines are not perpendicular.
__
10. A parallelogram is a rectangle if the sides are perpendicular. The slopes of the short sides are rise/run = -1, and the slopes of the long sides are rise/run = +1. These values have a product of -1, so the sides are perpendicular. The figure is a rectangle.
The answer is 6. Hope this helps!