1, 3, 5, 7, 9 are the possible digits
meaning you have 5! possible combinations or 120 combinations
I’m sorry bc I don’t know how to solve all of them but
#5 is C
#3, the equation is y=4
#4, the equation is x=-6
Answer:
B. infinite solutions along a line
Step-by-step explanation:
The matrix is equivalent to the equations ...
x = 2
y = 9
0z = 0 . . . . . . true for any z
This tells you the solutions are ...
(x, y, z) = (2, 9, z)
This defines a line parallel to the z-axis.
Answer: He is idle for 8.4 hours.
Step-by-step explanation:
Since we have given that
Number of hours he repairs =30 hours
Percentage of hours he worked = 72%
Remaining percentage of hours he remains idle is given by

So, Number of hours he is idle for a driving is given by

Hence, he is idle for 8.4 hours.