Answer:
88 problems
Step-by-step explanation:
98% of the total is 86 problems answered correctly.
(0.98)x = 86
x = (86/0.98)
x = 87.551
We need a whole number, so round to 88 problems
we know that
The volume of the composite figure is equal to the volume of a semi-sphere plus the volume of the cone
so
we have
substitute
what upAnswer:
888
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