One hundred thousand, two hundred and three.
If the family walked 2/5 of a mile in 2/7 of an hour their MPH would be 2.8mph
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is given
here ,
or,
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or,
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or,7x²+3x-4=-4
or,7x²+3x=0
or,x(7x+3)=0
Either,x=0| Or,7x+3=0
|or,7x=-3
|or,x=
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So , the solution set is S={0,-
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}
Answer:
use photomath and your welcome :)))