a groups of 210 children attended a school picnic. only 60 of the children ate. what fraction of the children ate?
2 answers:
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Answer:
17. z=39/sin45=
y=39/tan60=
x=y/sin60=
19. x==6
y=2x=12
z=
Step-by-step explanation:
17.
because:sin45=39/z
so: z=39/sin45=
then: tan60=39/y
so: y=39/tan60=
last: sin60=y/x
so: x=y/sin60=
19.
because: tan60=/x
so: x==6
then: sin30=x/y
so: y=x*sin30=2x=12
last: sin45=y/z
so: z=sin45*y=