Answer:
4840 sq yd 7 sq ft 119 sq in
Step-by-step explanation:
When I add these I like to line them up vertically
4,839 sq. yd. 8 sq. ft.139 sq. in.
+ 7 sq. ft. 124 sq. in
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4839 sq. yd. 15 sq. ft. 263 sq. in.
We know 12in * 12 in = 144 in^2 = 1 ft*1ft = 1 ft^2
so 144 in ^2 = 1 ft^2
If we have more than this amount in square in, we have to reduce the square inches and move it to the square feet.
Subtract 144 in ^2 and add 1 ft^2
4839 sq. yd. 15 sq. ft. 263 sq. in.
+ 1 sq ft -144 sq in
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4839 sq yd 16 sq ft 119 sq in
We know 3 ft * 3ft = 9 ft^2 =1yd*1yd = 1 yd^2
Subtract 9ft^2 and add 1 yd^2
If we have more than this amount in square ft, we have to reduce the square ft and move it to the square yds.
4839 sq yd 16 sq ft 119 sq in
+1 sq yd -9 sq ft
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4840 sq yd 7 sq ft 119 sq in
converges if 
is monotonic and 
as 
. Here 
.
. Then 
, which is positive for all 
, so 
is monotonically increasing for 
must be a monotonically decreasing sequence over the same interval, and so must 
.