What is Math homework: Definition and 54 Discussions
"Math Suks" is a song by Jimmy Buffett, from the album Beach House on the Moon (1999).
The lyrics tell of the author's frustration as a math student. According to the lyrics, the inspiration for the song and title came from a candid interview on TV:
I got so bored with my homework
I turned on the TV
The beauty contest winners were all smiling through their teeth
They asked the new Miss America "Hey babe, can you add up all those bucks?"
She looked puzzled then just said, "Math Suks!"However, in later interviews Jimmy said that the inspiration actually came from graffiti on a bridge in Key West Florida.Consistent with its stated theme, the song lyrics are largely an emotional catharsis; mathematical terms are used only in a very superficial way. Presumably for that reason, the song seems to have little appeal to mathematicians, and even less to mathematics teachers (unlike other songs that make fun at mathematics, such as Tom Lehrer's "Nikolai Ivanovich Lobachevsky" and "New Math"). The song was in fact promptly condemned by the US National Council of Teachers of Mathematics and the National Education Association for its alleged negative effect on children's education. Jon Stewart also criticized the song on The Daily Show during a segment called "Math Is Quite Pleasant".
Summary:: Tripped by my grand daughter's math homework again!
This is the homework of my grand daughter, I don't understand the question:
I wrote the questions in red. I have not done geometry for a long time! I don't understand the equation JM^2 = KM . LM. Is the "dot" just multiply? or is...
Most people don't get to cal 1 in high-school by the time they are seniors. People are excepted to get ready for cal 2 by the time they get to college. People don't get to cal 1 because they don't study at their home. However, in my personal opinion, is homework a mistake to give to students...
I can never get started on, or never get motivated with my math homework. I know this seems like a stupid question, but if anyone has any tips, they would be helpful.
Thanks!
Homework Statement
Homework Equations
N/A
The Attempt at a Solution
Question 1) Suppose I tried to convert ##\int \int_c {-2y^3} dA## into polar coordinates. What would the limits be? I know that ##x = rcos(\theta), y = rsin(\theta)## but the two rs are different (unlike in a circle).
Q2)...
Homework Statement
How many values of k can be determined in general, such that (k/p) = ((k+1) /p) = 1, where 1 =< k <=p-1?
Note: (k/p) and ((k+1)/p) are legendre symbols
Question is more clearer on the image attached.Homework Equations
On image.
The Attempt at a Solution
I've tried...
Homework Statement
If the polynomial P(x) = x^2+ax+1 is a factor of T(x)=2x^3-16x+b, find a, b
Homework EquationsThe Attempt at a Solution
Let (px+q) be a factor of P(x),
p can possibly be 1 and so can q, according to factor theorem,
Hence, factors (x+1) or (x-1)
P(1) = 0, substituting I got...
Homework Statement
If f:(2,4)-->(1,3) where f(x)=x-[x/2] (where[.] denotes the greatest integer function), then find the inverse function of f(x).
Homework Equations
(None I believe.)
The Attempt at a Solution
I know that for a function to be invertible, it must be both one-one and onto...
Homework Statement
Find the solutions to z^{\frac{3}{4}}=\sqrt{6}+\sqrt{2}i
Homework Equations
de Moivre's theorem
The Attempt at a Solution
z^{\frac{3}{4}}=2\sqrt{2}e^{\frac{\pi i}{6}}=2\sqrt{2}e^{\frac{\pi i}{6}+2k\pi}=2\sqrt{2}e^{\frac{\pi +12k\pi}{6}i}
z=4e^{\frac{4}{3}{\frac{\pi...
Homework Statement
Find the set of points of M such that:
AM x BC=AM x AC (Vectors)
The Attempt at a Solution [/b]
AM x (BM+MC) =AMx(AM+MC)
AMxBM+AMxMC=AMxAM +AM x MC
Then AMxBM=0
MA X MB=0
I am new to this lesson and this is my first time i solve such a question and i had no idea...
There is a nice equation made by Nobuo Yamamoto which describes the curve of an egg and it is:
(x^2 + y^2)^2 = ax^3 + (3/10)xy^2, where a is the length of the major axis of the egg.
Solve this equation for y, we get:
y=+/- sqrt((3/20)ax - x^2 + xsqrt((7/10)ax + (9/400)a^2))
When I rotate the...
Homework Statement
A player hits a volleyball when it is 4 ft above the ground with an initial vertical velocity of 20 ft/s (equation would be h = -16t2 + 20t + 4). What is the maximum height of the ball?
Homework Equations
quadratic formula
The Attempt at a Solution
t = -20 ±√202 - 4(-16)(4)...
hi! i don't quite know how to start solving for this. i understand the problem and what it's asking for but i have no idea how to start solving for it.
In a volleyball game, a player from one team spikes the ball over the net when the ball is 10 feet above the court. The spike drives the ball...
Homework Statement
Please see the attached file.
Homework EquationsThe Attempt at a Solution
If my math is right so far, I am basically stuck as to what to do with the E(t) term. [/B]
Homework Statement
I have attached the question in image format.
Homework Equations
The Attempt at a Solution
I attached my attempt at solution as images.
Kindly have look at them.
Homework Statement
Determinant
|a b c|
|d e f| = 5
|g h i|
What is the determinant of?
|4a 4b 4c|
|3d 3e 3f|
| g h i|
The Attempt at a Solution
So far I got this, a(ei - hf) - b(di - gf) + c(dh - ge) = 5
How would I even go about this, I have 9 unknowns, but only 1 equations?
Homework Statement
f(x) = [1 - tan(x)]/[1 - √2 sin(x)] for x ≠ π/4
= k/2 for x = π/4
Find the value of k if the function is continuous at x = π/4
The Attempt at a Solution
This means that lim x → π/4 f(x) = k/2
I put x = (π/4 + h) and then...
Homework Statement
referring to the attatchment. the current consists of two semi circles. the question asks me to find the voltage across a 47-uF capacitor when t = 2ms.
Homework Equations
v(t) = 1/C ∫ i(t)dt +v(t0) {I realize their has to be limits for the integrand,I just can't type...
Homework Statement
show that for positive r and s, with r<s, we always have:
r<(r+s)/2<s and 2/[(1/r)+(1/s)]^2< 2rs< (r+s)^2
Homework Equations
The Attempt at a Solution
i have shown that r<s because r+r<s+r, 2r<s+r, r<(s+r)/2 and 2r< (2s+2r)/4
(r+s)^2= r^2+2rs+s^2...
Homework Statement
Homework Equations
The Attempt at a Solution
This isn't for me, my son asked me to solve this, and I don't remember high school math, seeing that it isn't my field of study.
How do YOU do your math homework? Do you read the pages of examples, proofs, theories, etc, in the textbook? Or do you learn it by taking notes in class? If you learn by taking notes in class, do you still read the textbook? Or do you just not read the textbook, and just skip to the problems...
Homework Statement
http://puu.sh/ajGv
Homework Equations
??
The Attempt at a Solution
Q1- is -3, -1 and 1
Q2- CD is 2
Q3- I don't understand hence can't even start it
Homework Statement
1) A hyperbola goes through the point P(6, 2), and one of its asymptotes is the line r: 2x + 5y = 0. Determine its equation.
2) Prove that a line parallel to one asymptote of a hyperbola interesects it in a single point.
Homework Equations
The Attempt at a...
Homework Statement
If (1+x+x2+x3)5 = Σk=0k=15akxk, then Σk=0k=7a2k is equal to?
The Attempt at a Solution
Put x=1 in the expression given. We get
45 = a0 + a1 + a2 + ... a15
Put x=-1 in the same expression
0 = a0 - a1 + a2 ... -a15
Adding the two results,
45 = 2(a0 + a2...a14)...
Homework Statement
Seven chits are numbered 1 to 7. Three are drawn one by one with replacements. The probability that the least number on any selected chit is 5, is?
The Attempt at a Solution
We require 5 to be present on atleast one of the three chits and no number should be less...
Homework Statement
In the field of rational functions ordered by end behavior, is the Cauchy Criterion satisfied?Homework Equations
Definition of a sequence converging:
Let e(x)>0, then there exists N s.t. if n >= N, then there exists an X s.t. if x>=X then |a_n(x)- a(x)|<e(x)
Is this...
Homework Statement [PLAIN]http://img835.imageshack.us/img835/1108/question.png The Attempt at a Solution
I understand that the determinant represents the set of points, x in R_k which lies in the hyper plane passing through the points p1, p2...p_k. I also know, that if the determinant is non...
Homework Statement
car travels 18.2km due north then 43.2km at 53 degrees west of north. Find magnitude of car's resultant displacement.
b.) calculate the direction of the car's resultant displacement, measured counter-clockwise from the northerly direction.Homework Equations
The Attempt at a...
Homework Statement
\int(2x^2+1)^7
Homework Equations
The Attempt at a Solution
u=2x^2+1
du=4xdx
u7 (1/4x)du
I am stuck... I don't know what to do next...
Homework Statement
Suppose that P, Q, and R are regions in R2, and suppose T1 : P -> Q and T2 : Q -> R are
dierentiable. Use the (multivariable) Chain Rule and det(AB) = det(A)det(B) to show that the Jacobian of the
composition T2 o T1 is the product of the Jacobians of T1 and T2...
Homework Statement
We are given f \epsilon C(T) [set of continuous and 2pi periodic functions] and PS(T) [set of piecewise smooth and 2pi periodic functions]
SOlve the BVP
ut(x,t) = uxx(x,t) ; (x,t) belongs to R x (0,inf)
u(x,0) = f(x) ...
Homework Statement
Show how to simplify (mBvB2 - mBvC2 - mCvC2)/(mBvB2) to mC/(mC + mB)
Homework Equations
vB is not equal to vC.
vB = muzzle speed of a bullet = unknown value
vC = speed of the clay block after it is hit by the bullet = unknown value
vB = ((2gh)0.5(mB + mC))/mB
vC =...
Homework Statement
It's an extra credit assignment assigned by my math teacher, I sort of tried it but I'm not very good, and not too sure what else to do, this part isn't my strong suit.
Here's the problem:
(A)
"If my son would live forever and he grows 1 inch this week, 1/2 inch next...
Hi!I have got problem on Indices ( which i think i 'm not nearing any solution )
Homework Statement
Well the sum is
a m^n= (a m)n
Now it is to be expressed in terms of n
Homework Equations
none
The Attempt at a Solution
I tried this way
as the bases are same
.: m n= m...
Homework Statement
Let A be a matrix corresponding to reflection in 2 dimensions across the line generated by a vector v . Check all true statements:
A. lambda =1 is an eigenvalue for A
B. Any vector w perpendicular to v is an eigenvector for A corresponding to the eigenvalue lambda =1.
C...
Homework Statement
Let A \inR be a non-empty,bounded set .Define
B=A+1=\left\{a+1:a\inA\right\} Prove that sup(B) =sup(A)+1
Homework Equations
The Attempt at a Solution
let a\inA b\inB s\inR because B=A+1=\left\{a+1:a\inA\right\}
so b=a+1 \forallb\inB s>= b \rightarrow s>=a+1 , s>=a so...
Homework Statement
What single payment made immediately will settle the following obligations if money is worth 18 % compounded semi-annually
a.) 5000 due in 3 years
b.) 6000 due in 3 and 1/2 years with 10% simple interest rate
c.) 7000 due in 5 and 1/4 years with interest at 16%...
Homework Statement
Given that (csc a) = (sec0.75) and that 'a' lies in the second quadrant, determine the measure of angle 'a', to two decimal places.
Homework Equations
reciprocal and quotient identities.
The Attempt at a Solution
I only got as far as:
1/sin(a) = 1/cos(0.75)
The answer...
Just wanted to control if i made my math homework correctly. Just one exercise. Made it on paper and scanned into computer. The task was to simplify.
Here it is: http://img504.imageshack.us/img504/6669/mathexecisewq0.jpg
Please check it before 5th Januar, because i have to show it to my...
Homework Statement
Find R(\tau) if a) S(\omega) = \frac{1}{(4+\omega^2)^2}
Homework Equations
I have given \frac{4}{4+\omega^2} <==> e^{-2|\tau|}
The Attempt at a Solution
So S(\omega) = \frac{1}{(4+\omega^2)^2}=
\frac{1}{16}\frac{4}{(4+\omega^2)}\frac{4}{(4+\omega^2)} R(\tau)=...
An aircraft requires 25 rivets. The seam will have to be reworked if any of these rivets is defective. Suppose rivets are defective independently of one another, each with same probability.
(a) If 20 \% of all seams need reworking, what is the probability that a rivet is defective?
So...
A rectangular solid is to be constructed with a special kind of wire along all
the edges. The length of the base is to be twice the width of the base. The
height of the rectangular solid is such that the total amount of wire used (for
the whole figure) is 40 cm. Find the range of possible...
Homework Statement
Let f:[0,2]->R be defined as:
if 0 =< x =< 1 then f(x) = 4(x^3)
if 1 < x =< 2 then x = x^2 + 2
Prove or disprove:
There exist c_1 , c_2 in R so that F:[0,2]-R defined as:
if 0 =< x =< 1 then f(x) = x^4 + c_1
if 1 < x =< 2 then x = (x^3)/3 + 2x + c_2
Homework...
Well for my Calculus homework, I have to graph only on graph paper. Should I just do everything on graph paper so I don't have to switch from graph to line and then back again? I'm having a hard time figuring out which way is best because the teacher will take off points for not graphing on...
A surveyor is trying to determine the height of a mountain. First, he msut determine how far away it is. He establishes a base line of 1km and measures the angle to the summit from both ends of the base line. The angle on the right side is 88degrees and the angle on the left end is 88degrees...
Differentiate with respect to x
dy = 3x^2 - 5√x + 1/2x^2
dx
__________________________________________
I don't understand how to differentiate this part: 5√x + 1/2x^2. I think changing it to indices form would be: x^1/5 + (2x)^-2?
How can it be worked out? :confused:
What are the ROots:
x^4+4x^3+14x^2=-4x-13
ok the 13 really causes a problem because you can't factor that.
So I move the right side to the left and then you can't find a number that fits so that it equals zero so I tried factoring it somehow but can't do it can someone help?
Hi... I am working on a problem...
41.25 \sum_{n=0}^\24 \frac{n}{x^n}
(on the top of the Sigma, it should say 24, NOT 4)
I am searching, but can't seem to find a way to reduce that.
Computing that up to [tex]n=24[/itex] is pretty tedious...
Anybody know if there is a simpler...