Down because the “a” term in the equation is negative
Answer:
4 x (b+2)
Step-by-step explanation:
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14+38=52
52-38= 14
Answer: 38 and 14.
I think this is the answer.
The attached diagram is an interpretation of the question.
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The distance AD is found by Pythagoras theorem, with
AD=sqrt(BC^2+(AB-DC)^2)=sqrt(21^2+2^2)=sqrt(441+4)=sqrt(445)
=
21.095 (to the third decimal place)