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triciajfive
16.10.2019 •
Mathematics
Is the line through points p(–8, –10) and q(–5, –12) perpendicular to the line through points r(9, –6) and s(17, –5)? explain.
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Ответ:
No, the line through points P(–8, –10) and Q(–5, –12) is not perpendicular to the line through points R(9, –6) and S(17, –5).
Step-by-step explanation:
Two lines are called perpendicular to each other if the product of their slope is -1.
Since, the slope of a line having end points
and
is,
Thus, the slope of line Joining points P(–8, –10) and Q(–5, –12),
While, The slope of line Joining points R(9, –6) and S(17, –5),
Since,
Thus, the line through points P(–8, –10) and Q(–5, –12) is not perpendicular to the line through points R(9, –6) and S(17, –5).
Ответ:
the volume is 504
Step-by-step explanation:
volume=1/2a*b*h
a=8
b=9
h=14
1/28*9*14=504