Answer:
Picture is corrupt, DM me.
Answer:
half of 8 is 4
so 4 is your radius
4^4 = 16
16 x 3.14 = 50.24 in2 is your area.
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Answer:
Yes, "y" varies directly with "x"
The constant of variation is:
Step-by-step explanation:
Constant variation equation has the following form:
Where "k" is the constant of variation.
You can notice in the table the when "x" increases, "y" increases and the ratio between them is always the same.
To find "k" you need to pick any a point from the table, subsitutte the coordinates into and solve for "k". Then:
Add the two fractions together
1 3/5 + 2 1/10
=1 3/10 + 2 1/10
=1 6/10 + 2 1/10
=3 7/10