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MUFFY
Questions (15)
I am stumped on this one.
Amontg bryophytes, which of the following contain distinct stemlike axis, small leaves, and rootlike
0 answers
492 views
Hornworts differ from mosses and liverworts in containing:
a. small leaves b. photosynthetic sporophytes c. gametphytes d.
1 answer
2,534 views
Find the dimensions of the rectangle with minimum perimeter if its area is 400 square meters. Find the least perimeter.
I know
3 answers
3,273 views
A pool, that is 12 feet wide and 18 feet long, is to have a sidewalk of uniform length constructed around its perimeter.
a. write
2 answers
663 views
Can you simplify radical 253?
1 answer
406 views
I already asked this question and had some help, but I am still confused on a piece of it. I'm not sure what differentiate is.
I
2 answers
746 views
Pre-Calc - Follow-up for Reiny - MUFFY, Saturday, October 3, 2009 at 10:27pm
I wasn't sure if you would notice my question since
0 answers
642 views
Here I am again stuck with another geometry type question. Here goes:
A rectangle is inscribed between the x-axis and the
5 answers
1,114 views
Use the following conditions to create a sketch of the function by hand.
a. f(x) is increasing from (-infinity,-4)union(-4,
1 answer
558 views
Determine the center and the radius of the following circle:
x^2+y^2+6x-4y-5=0 I got for the radius 3(sqrt2) I got for the center
1 answer
876 views
Determine the solution.
x^2=|x|algebraically I have no idea how to proceed with this. Can you please help?
5 answers
357 views
A pizzeria sells a rectangular 18 X 24 inch pizza for the same price that it sells its large 24" diameter pizza. If both pizzas
3 answers
2,009 views
An open box is formed by cutting squares out of a piece of cardboard that is 22 ft by 27 ft and folding up the flaps.
What size
3 answers
871 views
Determine the domain of the following function: f(x)=sqrt x-7/x^2-5x-6
I think the domain is [7,all real numbers) Can you please
4 answers
721 views
Determine the name of the following triangle using the given points:
A(5,6), B(-1,-2) and C(-3,2). Be as specific as possible. I
4 answers
475 views
Answers (13)
When I graphed it, I got a reciprocal function not a parabola. I don't know how to find a minumum that's not a parabola or a cubic. Should I just go with the guess and check and call it 20 X 20?
Ok, well now I'm really confused. I thought about substituting 400/x into y but I still don't have anything to put it equal to. Can you please try to explain it.
OOPS, I meant Pre-Calc not ap Calc sorry
| * * | * *------+------* * | | | * * | | | * | | | * | | | * | | | | | | - * - -+------+------+- - * - | I found this picture online and this is the picture my teacher gave. Can we please start from the beginning. Here is the question again: A rectangle
f(x)=7x-4 So, you substitute: a. 7(0)-4=-4 b. 7(-3)-4=-25 can you take it from here?
I understand how you got a and b, but I am confused with c. What is differentiate and how did you get the equation dA/dx = 72 - 6x^2
Thank you for your guidance! Have a great night.
Ok, so I got x=0 x=1 x=0 x=-1 is that right?
Thanks so much. Any ideas on my other question?
I used the same equation you said then put it in the graphing calculator and found the intersection points. I'm thinking that you would put [.42,9.46) to show that it is more than .42 and less than 9.46.
:) Thanks!
Ok, so you're using the pathagorean theorum. I'm a bit rusty on my geometry so does that make it a right scalene?
Thanks so much for your explanation. I was able to figure it out and now got your answer.
