Answer:
Step-by-step explanation:
Answer:
False
Step-by-step explanation:
x could equal -4 or 4
|x| means the absolute value of x. Absolute value is how far a number is from 0. -4 is 4 units away from 0. 4 is also 4 units away from 0.
Answer:68600m
Step-by-step explanation:98 meters to cm is 9800 then times it by 7 you get 68600
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)
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