Answer:
I do not agree, because x=4 is an extraneous
Step-by-step explanation:
First, to solve the equation, you subtract 3 from both sides, then square both sides, subtract one from both sides, and finally divide by 2 on both sides. This indeed gets us x=4, but we also need to check if it's an extraneous solution. To do that we simply plug in x=4 into the original equation. sqrt( 2(4) + 1 ) + 3 = 0. When we do this, we end up with ±3 + 3 = 0. I do not agree, because we don't know if the sqrt(9) is -3 or 3.
Answer:
28
Step-by-step explanation:
there are 3 numbers you need to average so 3 times 24 which is 72
21 and 23 equals 54
72 minus 44 is 28
so the missing number is 28
Answer:
hu
Step-by-step explanation:
j
