Use substitution to solvey=2x+1 y=x-5
1 answer:
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1.
the closest perfect squares of 12 are 9 and 16,
that is 9<12<16
so
this means,
is 3 point something...
2.
similarly
36<40<49
so
which means
is 6 point something...
3.
<span>the sum of the integers between the square root of 12 and 40 is the sum of 4, 5 and 6, since 4 is the smallest integer after root 12, and 6 the greatest integer to before root of 40.
Answer: 15</span>
the closest perfect squares of 12 are 9 and 16,
that is 9<12<16
so
this means,
2.
similarly
36<40<49
so
which means
3.
<span>the sum of the integers between the square root of 12 and 40 is the sum of 4, 5 and 6, since 4 is the smallest integer after root 12, and 6 the greatest integer to before root of 40.
Answer: 15</span>