Answer:
C, D and E
Step-by-step explanation:
Plug the numbers in.
A would be
Which simplifies to
which is wrong
B simplified is
which is also incorrect
C simplified is
which works
D simplified is
which also works
And finally, E simplified is
which also works
Step-by-step explanation:
P=7 because when you do bring 63 on the other side it'll be 9p=63 and after that divide both sides by 9 and you'll have p=7
Answer:
3. the numbers between -5 and 5
Step-by-step explanation:
Let set A= and set .
The solution set of A and B is the solution set of A∩B
The solution set of A is all the real number x which is greater than -5.
The solution set of B is all the real number x which is less than 5.
Therefore, the solution set of A∩B is all the real numbers between -5 and 5.
Hence, option (3) is correct.