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 Name:
 Kevin Lee
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 Stuyvesant High School
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Group Title
A 6kg block, sliding to the east across a horizontal frictionless surface with a momentum of 30 kg*m/s strikes an obstacle. The obstacle exe…
 updated 8 months ago
 3 replies
 1 Medal
Mathematics

Grazes:
Group Title
I'm trying to think of a phrase to substitute "slipped through the crowd" because my English teacher doesn't like it. Help?
 updated 8 months ago
 37 replies
 3 Medals
Mathematics

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Group Title
A .1 kg object dropped vertically from a height of 1m above the floor bounces back to a height of .8m. What is the mechanical energy lost by…
 updated 8 months ago
 6 replies
 1 Medal
Mathematics

Grazes:
Group Title
If the three roots of the polynomial x^3+3x^25x+1 are r1,r2,r3, find r1r2+r1r3+r2r3.
Can someone do this step by step so I understand it? …
 updated 8 months ago
 1 reply
 1 Medal
Mathematics

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Group Title
Which of the following is not a solution to 2sin^2(x)+sinx?
330,210,180,150,0 (in degrees)
 updated 8 months ago
 3 replies
 1 Medal
Mathematics

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Group Title
If the four roots of the polynomial x^4+3x^2+2x^2+4x4 are r1,r2,r3,r4 then r1r2r3+r1r3r4+r1r2r4+r2r3r4=?
 updated 8 months ago
 1 reply
 No Medals Yet
Mathematics

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Group Title
Image.
 updated 8 months ago
 17 replies
 No Medals Yet
Mathematics

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Let P(x)=x^36x+k. If the sum of the two roots of P(x) is 2, then the third root is...
 updated 8 months ago
 16 replies
 1 Medal
Mathematics

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Group Title
What is the xcoordinate of the point on the graph of the equation y=2x+3 which is closest to the point (5,0)?
 updated 8 months ago
 44 replies
 No Medals Yet
Mathematics

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Group Title
What will the remainder be when P(x)=x^13+4x^73x+2?
How can I do this without dividing everything out?
 updated 8 months ago
 7 replies
 1 Medal
Mathematics

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Group Title
Find roots of the equation.
 updated 8 months ago
 11 replies
 2 Medals
Mathematics

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Group Title
Can someone explain why an infinite series won't change even if you add another term of the sequence to the end of it?
 updated 8 months ago
 13 replies
 1 Medal
Mathematics

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Geometric Sequences
 updated 8 months ago
 15 replies
 1 Medal
Mathematics

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Sequences
 updated 8 months ago
 6 replies
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Mathematics

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Show that n^3>(N+1)^2 for all natural numbers n>=3.
 updated 9 months ago
 26 replies
 3 Medals
Mathematics

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Group Title
Prove the identity: 4k^3+15k^2+17k+6=(k+1)(k+2)(4k+3) using the left side.
 updated 9 months ago
 1 reply
 1 Medal
Mathematics

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Group Title
Prove the identity: 4k^3+3k^2+11k+9=(k+1)(k+2)(4k+3)
 updated 9 months ago
 3 replies
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Mathematics

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Group Title
Find k and the roots:
The sum of 2 roots of 3x^3+kx^23x+12 is 0
 updated 10 months ago
 2 replies
 No Medals Yet
Mathematics

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Find the contact force
a. between boxes 1 and 2
b. between boxes 2 and 3
 updated 10 months ago
 1 reply
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Mathematics

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One root of the equation x^2+kx+2k=0 (k!=0) is twice the other. Find k and find the roots of the equation.
 updated 10 months ago
 9 replies
 1 Medal
Mathematics

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Group Title
A diver runs horizontally off the end of a diving board with an initial speed of 1.75m/s. If the diving board is 3.00m above the water, what…
 updated 11 months ago
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Mathematics

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Find a quadratic function that has zeroes 4 and 9 and a graph that passes through (3,5).
 updated 11 months ago
 5 replies
 No Medals Yet
Mathematics

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Find the inverse of y=x^2+4x+8 if x>2
 updated 11 months ago
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Mathematics

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a sailboat runs before the wind with a constant speed of 2.8m/s in a direction of 52 degrees north of west. How far (a)west and (b)north has…
 updated 11 months ago
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Mathematics

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(x^8+x^6)/(x1)
Is there an easier way to find the remainder without dividing it out?
 updated 11 months ago
 21 replies
 No Medals Yet
Mathematics

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Use the remainder theorem to evaluate f(x) for the given value x. 6x^36x^2+x5; x=3
 updated 11 months ago
 4 replies
 No Medals Yet
Mathematics

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Group Title
A computer can perform c calculations in s seconds. How many minutes will it take the computer to perform k calculations?
Just explain it s…
 updated 11 months ago
 5 replies
 1 Medal
Mathematics

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Group Title
Assume that f and g are inverse functions. if g(2)=0, what is f(0)?
 updated one year ago
 7 replies
 No Medals Yet
Mathematics

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Scores on an exam are normally distributed with a standard deviation of 40 points. If a score of 552 place you exactly at the first quartile…
 updated one year ago
 10 replies
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Mathematics

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A particle is accelerated uniformly from rest to a speed of 50m/s in 5 seconds. The average speed of the particle during this 5sec time inte…
 updated one year ago
 6 replies
 1 Medal
Mathematics
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