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"The essence of mathematics is not to make simple things complicated, but to
make complicated things simple." -S. Gudder
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There is a pleasure one experiences when you discover how a problem can be solved separately using different methods.----------
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Questions Answered
piercetheveil47:
Group Title
please help me :((
updated 12 hours ago
18 replies
3 Medals
Mathematics
aamey:
Group Title
Find the equation of a sine wave that is obtained by shifting the graph of y=\sin(x) to the right 2 units and downward 9 units and is vertic…
updated 14 hours ago
16 replies
2 Medals
Mathematics
Loser66:
Group Title
Without using chi-square, if \(M(t)= e^{500t +5000t^2}\)
find \(P(27060\leq (X-500)^2\leq 50240)\)
Please, help
updated 14 hours ago
17 replies
1 Medal
Mathematics
mondona:
Group Title
medal!
updated 14 hours ago
6 replies
No Medals Yet
Mathematics
PaxPolaris:
Group Title
For all real numbers \(x\), the function \(f(x)\) satisfies $$ 6 +f(x)=2f(-x)+3x^2\left(\int_{-1}^1 f(t)dt \right) $$ It follows that \(\int…
updated 13 hours ago
36 replies
5 Medals
Mathematics
CalcII:
Group Title
negate the statement: for every epsilon>0, there exists delta>0, such that abs(f(x)-f(0))<epsilon for all -delta<x<delta
updated 16 hours ago
13 replies
4 Medals
Mathematics
RavingF360:
Group Title
A student was given the problem (3 x 6) – 2 +6 and asked to evaluate. The student’s answer was 10, what did he do wrong? Will Fan and Medal
updated 16 hours ago
3 replies
1 Medal
Mathematics
Nicomia1023:
Group Title
1.8984375E-20
What is the 20 digit to the right of the decimal?
updated 14 hours ago
5 replies
No Medals Yet
Mathematics
acepreston:
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What is the probability that two randomly selected 40-year-old females will live to be 41 years old?
updated 16 hours ago
2 replies
No Medals Yet
Mathematics
sarahc:
Group Title
HELP!
Let u = <-6, 3>, v = <-1, -6>. Find 4u + 2v.
…
updated 16 hours ago
2 replies
2 Medals
Mathematics
josh543:
Group Title
When asked how to create an electromagnet, the best answer would be, "You can create an electromagnet by applying a direct current to a non…
updated 16 hours ago
25 replies
2 Medals
Mathematics
ornahhh:
Group Title
Of ten test scores, six are less than or equal to 80. What is the percentile rank of a test score of 80?
updated 16 hours ago
5 replies
1 Medal
Mathematics
SkiTTleoooo47:
Group Title
Solve the system of equations using matrices. Use Gaussian elimination with back-substitution.
x + y + z = -5
x - y + 3z = …
updated 16 hours ago
4 replies
No Medals Yet
Mathematics
jbauer33:
Group Title
how do i find all the minimum values of x+sin^2 x with the domain of pi/6 to 5pi/6?
updated 16 hours ago
16 replies
No Medals Yet
Mathematics
CalcII:
Group Title
prove: B-(B-A)=AintersectingB
updated 15 hours ago
65 replies
3 Medals
Mathematics
swissgirl:
Group Title
@perl
updated 12 hours ago
94 replies
5 Medals
Mathematics
mayte_97:
Group Title
Complete the sentence: After a congruence transformation, the perimeter of a triangle would be _____ it was before.
updated yesterday
2 replies
No Medals Yet
Mathematics
KingAyo:
Group Title
You build and sell toy cars for $36 each. So far, you have built 25 toy cars. How many more toy cars will you have to build and sell to earn…
updated yesterday
2 replies
No Medals Yet
Mathematics
jbauer33:
Group Title
what are the minimum and maximum values of x+sin^2 x with the domain of pi/6 to 5pi/6?
updated yesterday
24 replies
2 Medals
Mathematics
bkonch:
Group Title
evaluate the iterated integral:
(from 0 to ln3),(from 1 to ln2)
e^(2x+4y)dydx
updated yesterday
20 replies
6 Medals
Mathematics
SkiTTleoooo47:
Group Title
A statement Sn about the positive integers is given. Write statements S1, S2, and S3, and show that each of these statements is true. Show y…
updated 2 days ago
4 replies
1 Medal
Mathematics
shamil98:
Group Title
how to do
\[\int_{}^{}sec~x~~ dx\] using u-sub
updated 2 days ago
17 replies
5 Medals
Mathematics
dg2:
Group Title
6 person are seated at a round table. What is the probability that 2 particular persons sit together?
updated 2 days ago
13 replies
2 Medals
Mathematics
ArunAk:
Group Title
how to solve ax+by+cz=d ,ex+fy+gz=h ix+jy+kz=l
updated 2 days ago
11 replies
5 Medals
Mathematics
serjinio:
Group Title
In a hand of 5 cards, out of a 52 deck of cards, what is the probability that the five cards are all face cards?
…
updated 2 days ago
5 replies
2 Medals
Mathematics
aamey:
Group Title
y= -10cos[5(x-pi/5)] What is the period? What is the phase shift?
updated 2 days ago
5 replies
3 Medals
Mathematics
brooke_1697:
Group Title
True/False – The following sentence is an example of inclusive language.
My brother was just hired as a male nurse.
…
updated 2 days ago
3 replies
No Medals Yet
Mathematics
nello:
Group Title
Algebra help please?
updated 2 days ago
37 replies
3 Medals
Mathematics
MarthaHearst:
Group Title
How do you become a moderator (if you even can)?
updated 2 days ago
4 replies
2 Medals
Mathematics
danielle02:
Group Title
Fire tower X is 8 km southwest from firepower Z. A fire is spotted from X in the direction N 32° W. From Z, the fire is in the direction N 6…
updated yesterday
13 replies
1 Medal
Mathematics
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