Recent content by halvizo1031

reason i say quadratic is because if a 10cm is $5, and a 20cm take four times the amount of raw materials, then it should cost four times the amount of a 10cm pizza. thus, it would cost $20.

it seems to me that it would be quadratic.

well as we doubled the diameter, the raw materials quadrupled.

now the second part of this question says that suppose that the price of each pizza will be directly proportional to the amount of raw materials you use. if you were to model your pricing structure as "price as a function of diameter", then would you expect that model to be linear, quadratic, or...

Homework Statement T or F? a pizza with 20cm diameter will require approximately half of the raw materials of pizza of diameter 40cm. explain your answer. Homework Equations The Attempt at a Solution my thinking is this, if we take the area of both pizzas, then we get 100(pi)...

thanks! i appreciate everyone's help.

hold on, if i plug in 1 for x, wouldn't i get 0 = 1?

the way i see it is that for any value i plug in for x (except 1), the left hand side will always give me a complex answer which does not equal 1.

if x < 1 then i will also get a complex solution here...therefore, i will always have a complex solution to the equation for any value of x except 0?

it seems to me that stating that the equation will give a complex answer when x>1

i'm not quite sure what it is the question is looking for ...

thus, sqrt of 1-x will always give us a complex answer?

i need some time to think about the reasoning here...i'm not quite sure i see it.

i see...then, may I use the same reasoning for part (d)?

well my thinking for part ii is that since (x-3) is always smaller than (x), then we would have a small number minus a big number which would give us a negative solution...thus, since the equation is equalled to 5, there must be no solution.