20 !
if two lines are perpendicular to the same line are they perpendicular to each other?

Step-by-step explanation:

depending on the space you're considering, it would be SOMETIMES true. But usually, the 2 lines would be parralel.

What i'm saying is, that in an euclidian space, the 2 lines would be parallel. In another kind of space, the two lines could be anything...

for example: look at how longitude and lattitude are represented on a globe : they are "lines"... 2 sets of perpendicular lines...

Now look at what happens in the poles : all lines intersect! (therefore, they're not parallel, and not necessarily perpendicular either)

3030 ur welcome

step-by-step explanation:

the rocket cannot penetrate the ground, in a contextual sense, therefore the roots of this equation should be the domain of this function. i'll let you find the roots of this quadratic equation (hint: use the quadratic formula:  

1- c

2-a

step-by-step explanation:

mark brainliest!