Answer:
The false statement is: They must occur under carefully controlled conditions found in a laboratory.
Step-by-step explanation:
Scientific experiments do not always occur in laboratories, also, in the case of social studies, the experiments are done under not controlled conditions to prove the hypothesis.
On the other hand, all scientific experiments must be well documented and they always give useful results (in case the hypothesis is rejected, future investigations will use other hypothesis).
Answer:
Step-by-step explanation:
Answer:
3x -y = 6
Step-by-step explanation:
When the equation of a line is given in the form ax+by=c, the perpendicular line through point (h, k) will be ...
bx -ay = bh -ak
Here, we have a=1, b=3, h=1, k=-3, so the line is ...
3x -y = 3(1) -(1(-3))
3x -y = 6
Answer:
(2x + 1) (x + 2)
Step-by-step explanation:
2x² + 4x + 1x + 2
They are already arranged, so you just have to find the GCF. 2x² + 4x have the GCF of 2 and 1x + 2 have the GCF of 1.
2x (x + 2) + 1(x + 2)
Now you divide the whole thing by x + 2.
2x (x + 2) + 1(x + 2)/ x + 2
One of them cancels out leaving (2x + 1) and (x+2)
