Intermediate/Advanced Algebra

For more advanced algebra topics, including Algebra II and Pre-Calculus.
M
Calculate the amplitude of the pulse that is reflected from a disc-shaped reflector
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0
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638
mikewill54
M
R
Simultaneous equations: Can you tell me how to solve the simultaneous equations X^-xy+3y^=15 X^+xy-y^=5
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10
Views
2K
reggiwilliams
R
A
Can someone give me a hint for complex root question
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10
Views
2K
eipi45
E
G
Function Help: Country A) Here, the number of infected increases with the number of days in the epidemic multiplied by itself.
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2
Views
784
khansaheb
K
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
2K
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}
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1
Views
740
blamocur
blamocur
M
Is there something wrong with this solution? Coordinate Proofs.
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2
Views
779
lookagain
L
A
Finding integer values in exponential functions
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0
Views
562
Aardvqrk
A
W
I tried solving this question, but I am not getting the right answer. Please help.
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3
Views
1K
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
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2
Views
993
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
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8
Views
3K
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
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2
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2K
Steven G
Steven G
J
show that -ln(x-sqrt(x^2-1)) = ln(x+sqrt(x^2-1))
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2
Views
1K
Steven G
Steven G
P
The curve 12x² - 5y² = 7 intersects the line 2p²x - 5y = 7 at the point (1,p).
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11
Views
3K
lookagain
L
A
Find the equation of the line that passes the points (a, 0) and (c, d)
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1
Views
607
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...
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8
Views
2K
nanase
N
M
Confusion with recurrences: C_N = C(N/2) + N, N/2 + N/4 + N/8 + ... = 2N
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11
Views
3K
Mondo
M
Y
Sequence limit: Let Un be the sequence U(n+1)=ln⁡(1+Un) and Vn=1/U(n+1)−1/Un.
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0
Views
470
Younx
Y
M
Isolate equation based on a2: Qa = (Cd*a2)/(sqrt(1 - (a2/a1))) * (sqrt(2*delta-P))/(P)
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3
Views
1K
Dr.Peterson
Dr.Peterson
H
Need the right equation for something called perfscore
Replies
1
Views
942
blamocur
blamocur
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