It's incorrect. There are 6 moles of NaBr produced for every 3 moles of Na₂S among the reactants (as well as 2 moles of FeBr₃), so the mole ratio of NaBr to Na₂S should be 2 : 1, not 1 : 1.
Answer:
If the angle is 32, then the tan of 32 degrees will be 0.625.
Step-by-step explanation:
This is useful because if you know either Opposite or Adjacent length, you can enter it in the equation above and solve for the missing length.
You can also re-write the equation above to solve for Opposite and Adjacent to get the following new equations:
Opposite = 0.625 x Adjacent
Adjacent = Opposite / 0.625
2 -> z
5 -> 15
We can see from 5 changing to 15, that multiplying 5 by 3 gives you 15, so multiplying 2 by 3 will give you z.
2 x 3 = 6
A. 6
The area was originally 3*5, or 15 cm^2.
When the sides were enlarged, they were all multiplied by 3. The new sides are 3*3, or 9, and 5*3, or 15.
The new area is 9*15, or 135 cm^2.
If you divide 135, the new area, by 15, the original area, you get 9. So, the area increased by a factor of 9.
Answer:
400 in^2
Step-by-step explanation:
A square has equal sides, s and the area = s * s
volume of refrigerator = s *s * h
= s^2 * 40 = 16000
s^2 = 400
s = 20 inches so area = 20 * 20 = 400 in^2