Beginning Algebra

Specifically for introductory questions about algebra (Algebra I).
L
Injective and surjective functions But g◦ f must be bijective.
Replies
6
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17K
HallsofIvy
H
B
Solving Absolute Value Equations: plot solutions to | 2n | = 6
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5
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3K
HallsofIvy
H
C
Find eqn w/ same y-int as y+12x+2=0 & is parallel to 7x-3y=-9
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4
Views
2K
HallsofIvy
H
O
Determine all (a, b) so system |x|+y=a, 2|y|-x=b has exactly 3 solns.
Replies
11
Views
3K
stapel
stapel
I
trigonometry: who can solve this? sin(2X)+3COS(2X)=1
Replies
3
Views
2K
Steven G
Steven G
S
Inverse Proportion: By what % will gas press. change if vol. incr. by 25%?
Replies
5
Views
4K
Sharon3431
S
T
Slope and value calculation assistance
Replies
7
Views
3K
Otis
Otis
S
Simultaneous equations and the volume of a cylinder
Replies
6
Views
6K
solo
S
B
Find possible values of t that make -2|2t| = -24 a true statement
Replies
2
Views
2K
Steven G
Steven G
B
Can someone help me with that ??
Replies
3
Views
2K
Steven G
Steven G
T
Algebra Slope Solving for Y Equation
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9
Views
4K
HallsofIvy
H
B
Solving for u: 0.05 = (u)*(0.15) + (1-u)(-0.15)
Replies
7
Views
3K
benem
B
C
Simplify this equation: -.5P / (2-.5P) simplified to -P / (4-P)
Replies
3
Views
2K
Steven G
Steven G
S
Dimensions: swimming pool 250 m around; 75 m long; find dimensions
Replies
4
Views
2K
Steven G
Steven G
T
Quadratic problem - verifying answer approach
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4
Views
3K
tathagata7
T
M
Please help: cats sell for $10.00 each; canaries sell for $15.00 each.
Replies
2
Views
2K
Deleted member 4993
D
M
problem solving: Lindy sold her guitar online the location charges 35% of the first
Replies
8
Views
3K
mongo33
M
S
"A train leaves Newcastle for Sydney at 7:45am while another train leaves..."
Replies
2
Views
3K
Deleted member 4993
D
K
Finding inverse of a matrix with steps
Replies
8
Views
5K
stapel
stapel
L
find formula to sum all odd integers, from 0 up to 99, that user inputs
Replies
5
Views
4K
HallsofIvy
H
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