the second choice, and the last choice are correct.
the first one, x can be any number.
the second one, x can be any number but not -1(the denominator cannot be 0)
the third one, x has to be ≥ 1/2, because 2x-1 cannot be negative.
the fourth one, x can be any number but not -1 or -4
the last one, x can be any number but not -3
16 + b^2 = 36
b^2 = 20
b = 4.472
Answer:
5
Step-by-step explanation:
5x=12+3
5x=15
X=15/3
X=5
Answer: 4374
Step-by-step explanation:
Answer:
it is 0
Step-by-step explanation: