Answer:
1 has 1 solution
2 has one solution
3 has no solutions The lines are parallel
Answer:39
Step-by-step explanation:
90-51=39
For this case, you must use the given expression, taking into account that:
n = number of days.
We have then that for day 21, n = 21.
Substituting we have:
a21 = 100 + (21-1) * 4
a21 = 180
Answer:
she sprints 180 yards on day 21
The midpoint is the number exactly between the numbers
0+4= 4
4/2 = 2
I think you mean
so therefor since we can't take squaer root of negative
3t-9 must not be negative
basicaly, 3t-9 must be greater than or equal to 0