Math answer plz need help with this plz answer 17,16

16.

8 inch diameter -> 4 inch radius -> 50.2 in^2 area of the pizza.

the ratio of cost to size of first pizza is 0.199 $ per square inch of pizza.

14 inch diameter -> 7 inch radius -> 153.9 in^2 area of the pizza.

the ratio of cost to size of first pizza is 0.103 $ per square inch of pizza.

Since the 14 inch diameter pizza has a lower cost (0.103 $) than the 8 inch diameter pizza (0.199 $), the 14 inch diameter pizza is the "better buy".

17.

the circumference will double, and the area will multiply by 4!

16. You want to buy the one with more pizza (meaning larger area) for its cost. The first pizza has area π(8/2)² = 16π and costs $10. (Notice I did 8/2 because 8 is the diameter and you want to square the radius.) The second pizza has area π(14/2)² = 49π and costs $16.

The better pizza has a higher "area-to-cost" ratio (high area, low cost). The first pizza has a ratio of 16π/10 = 5.027, and the second pizza has a ratio of 49π/16 = 9.621. The second pizza's ratio is higher, so it is the better buy.

17. I answered this in the other post

the central idea is that:

individuals should refuse to cooperate with institutions they believe unjust.

thoreau felt  that governments were more often agents of corruption than justice, even democracies, and that just because the majority feels a certain way does not make it just or correct in absolute terms. he uses the fact that slavery exists in our democracy to support this idea.

he goes on to say that, as a result, people should live true to their own internal laws regarding right and wrong, as a product of reflection and a moral life, rather than following every law that society imposes. 

step-by-step explanation:

for this case we have by definition, if two lines are perpendicular, then the product of their slopes is -1.

then, given the following line:

so,

we are looking for m_ {2}:

then, the line is given by:

we find "b" replacing the given point:

finally, the equation is:

option c