3. If 1 mole of lead Pb is 207 grams, how many atoms are in 414 grams?
1 answer:
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we know that
The measurement of the exterior angle is the semi-difference of the arcs which comprises
In this problem
∠FGH is the exterior angle
∠FGH=
∠FGH=
-----> equation A
--------> equation B
Substitute equation B in equation A
therefore
<u>The answer is</u>
The measure of arc FEH is equal to
To attempt this algebraic equation we will be multiplying 4 to (3 - x) bracket so as to form the term on L.H.S.
Combining like terms, we get,
- The value of x is 5.5