Intermediate/Advanced Algebra

For more advanced algebra topics, including Algebra II and Pre-Calculus.
S
equation manipulation question (E = 0.5*k*x^2 (this is an elastic spring potential energy); k = F/x (stiffness = force/displacement))
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4
Views
652
sarajv
S
A
Problem with isolating x: partial-E[U,W]/partial-alpha = p_u X_u (1+alpha X_u)^{-gamma} + p_d X_d (1+alpha X_d)^{-gamma}
Replies
1
Views
367
blamocur
blamocur
M
Is there something wrong with this solution? Coordinate Proofs.
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2
Views
347
lookagain
L
A
Finding integer values in exponential functions
Replies
0
Views
270
Aardvqrk
A
W
I tried solving this question, but I am not getting the right answer. Please help.
Replies
3
Views
565
Steven G
Steven G
S
Calculate the sum of digits of powers of 2: Let s_2(n) denote sum of digits in base-2 expansion of n
Replies
2
Views
477
Steven G
Steven G
R
I can't understand how to do this ratio problem: 9a:7c = 4:7, 3b:5c = 5:3; show that a+b:b+c = 29:34
Replies
8
Views
2K
Raanikeri
R
N
basic algebraic manipulation task: use p = 2^x to rewrite 2*4^x + 2^{x+3} = 1 + 2^{x-2} as 8p^2 + 31p - 4 = 0
Replies
2
Views
956
Steven G
Steven G
J
show that -ln(x-sqrt(x^2-1)) = ln(x+sqrt(x^2-1))
Replies
2
Views
508
Steven G
Steven G
P
The curve 12x² - 5y² = 7 intersects the line 2p²x - 5y = 7 at the point (1,p).
Replies
11
Views
2K
lookagain
L
A
Find the equation of the line that passes the points (a, 0) and (c, d)
Replies
1
Views
286
anti-matter
A
N
quadratic intersecting circle: circle w/ center C(3,0) passes thru A(0,6); parabola passes thru 2 pts B, C, with...
Replies
8
Views
887
nanase
N
M
Confusion with recurrences: C_N = C(N/2) + N, N/2 + N/4 + N/8 + ... = 2N
Replies
11
Views
1K
Mondo
M
Y
Sequence limit: Let Un be the sequence U(n+1)=ln⁡(1+Un) and Vn=1/U(n+1)−1/Un.
Replies
0
Views
192
Younx
Y
M
Isolate equation based on a2: Qa = (Cd*a2)/(sqrt(1 - (a2/a1))) * (sqrt(2*delta-P))/(P)
Replies
3
Views
636
Dr.Peterson
Dr.Peterson
H
Need the right equation for something called perfscore
Replies
1
Views
505
blamocur
blamocur
B
Logarithm: If log_5(3) = T, express log_5(9/125) in terms of T
Replies
2
Views
544
Dr.Peterson
Dr.Peterson
A
A flare fired from the bottom of a gorge is visible only when the flare is above the rim. if it is fired with an initial velocity of 96 ft/sec....
Replies
8
Views
4K
Dr.Peterson
Dr.Peterson
F
Rewrite a log function: log_10(k) = log_10(k_init) - beta_k * e_vol
Replies
1
Views
483
Dr.Peterson
Dr.Peterson
A
linear algebra multiple-choice quiz (in Spanish)
Replies
1
Views
486
stapel
stapel
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