6 <-3 + r/5

42 43 4 45 46 47 48 49 50 51 52 3 4

I had no idea what u were asking but i solved for r and got r>45

r > 45

Step-by-step explanation:

6 <-3 + r/5

add 3 left and right of the < sign gives:

6 +3 <-3 +3 + r/5

9 < 0 + r/5

9 < r/5

multiply left and right of the < sign gives by 5 gives:

9 * 5 < 5* r/5

45 < r

r > 45

a4 - 3a2 - 1

step-by-step explanation:

step   1   :

equation at the end of step   1   :

  ((a4) -   3a2) -   1

step   2   :

trying to factor by splitting the middle term

2.1     factoring   a4-3a2-1  

the first term is,   a4   its coefficient is   1 .

the middle term is,   -3a2   its coefficient is   -3 .

the last term, "the constant", is   -1  

noncoplanar points are points that do not lie on the same line.