a
Step-by-step explanation:
you are trying to divide x by 7 to isolate x. so you divide by 8 on both sides.
Answer:
Amount of Niobium-91 initially
= 300/91 =3.2967mol
2040 years = 3 ×680 = 3 half-lives
therefore, amount left = 0.4121mol
mass of Niobium-91 remaining = 0.4121 ×91 =37.5g
Please give brainliest
Answer:
welp-
7(x - 2)2 = 14(x-2) = 14x-28
I hope this helps:)
-♥
Answer:
14
Step-by-step explanation:
our lines of symmetry is made limited by the presence of the pentagon. If we slice the pentagon into two, the only line of symmetry we could create would be the line intersecting O and the median of LM. Other lines would not create a symmetrical half.
Therefore the line of reflection is only 1.
questioned answered by
(jacemorris04)
