3x+2(3x-3)=2
9x-6=2
9x=8
X=8/9
Answer:
138
Step-by-step explanation:
180-42=138
the entire angle is a 180 angle but a is 138
we know that
1 day is equal to --------------> 24 hours
1 minute is equal to--------> 1/60 hours
then
convert (58 days, 15 h, and 30 min) to hours
= [58*24+15+30*(1/60)]
=[1,392+15+0.5]
=1,407.5 hours
therefore
<u>the answer is</u>
Jupiter complete a full rotation in 1,407.5 hours
Answer:
a) a
b) ab
e) bbbbb
Step-by-step explanation:
We are given the following in the question:
a) a
It is given that 
b) ab
Thus, ab belongs to S.
c) aba
This does not belong to S because we cannot find x for which xb belongs to S.
d) aaab
This does not belong to S because we cannot find x for which xb belongs to S.
e) bbbbb
Thus, bbbbb belongs to S.
Answer:
B
Step-by-step explanation:
The second equation in system B is only in terms of y, so we need to use elimination to eliminate the x term from the second equation in system A.
To do that, we need to multiply the first equation by 5.
5 (-x − 2y = 7)
-5x − 10y = 35
Add to the second equation. Notice the x terms cancel out.
(-5x − 10y) + (5x − 6y) = 35 + (-3)
-16y = 32
Combining this new equation with the first equation from system A will get us system B.
-x − 2y = 7
-16y = 32
