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.
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)...
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.
Homework Statement
I am having trouble with question 4(c).... part i and ii....
Homework Equations
The Attempt at a Solution
would it be okay for her to write iff between each line? I do not see why not but I cannot find the proper reasoning.
Homework Statement
Can someone assist me with number 3 please...
Homework Equations
The Attempt at a Solution
I went ahead and rewrote f(x) in vertex form in terms of a,b, and c but i'm having a hard time writing down how f can be thought of as a transformation of g.
I did look at b and her math is correct but it's the reasoning that I am not seeing. I would have just taken the original 4 scores, added the fifth score, and divided by 5.
you are correct that she "should" get 4 and 11 but i guess it doesn't matter since her process and reasoning is incorrect. unless the professor made a mistake in typing this question....thank you both for your input.
Homework Statement
Mindy solves the problem (x+4)(x-3)=8 by setting x+4=8 and x-3=8, thereby getting the solutin x=4 from both equations. she checks her answer by substituting x=4 into the original equation and finds that it works. She concludes that this quadratic equation has only one...
also, how can i identify an isomorphism from H onto G? can i just say phi(a+b)=10^(a+b)=10^a times 10^b = phi(a) times phi(b). therefore, log (a+b) = log(a)log(b)???
1. Homework Statement [/b]
The set of positive real numbers, R+, is a group under normal multiplication. The set of real
numbers, R, is a group under normal addition. For the sake of clarity, we'll call these groups G and H respectively.
Prove that G is isomorphic to H under the isomorphism...