If, for example, you had x on one side and x on the other, then subtracting x from both sides "disappears" x. If no other power of x shows up on either side, then your equation either has no solution or is always true.
The second survey is more believable because there is randomness in the second rather than the first survey. Since the second company surveyed in all interest levels while the first company only surveyed their best customers. Random sampling like what the second company did helps produce representative samples by removing voluntary response bias and undercover age bias.
Answer:
2.5
×
t
=
2.5
t
Step-by-step explanation:
Answer:
tell martha to buy huwei matebook x 2020 , its a good one
Step-by-step explanation:
