serinaaa
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Questions Answered

serinaaa:
Group Title
Why is the oxidation number of sulfur in H2SO3 = +4 and equal to 2 in H2S?
I can't seem to find how this works with the oxidation rules…
 updated 2 months ago
 4 replies
 No Medals Yet
Mathematics

serinaaa:
Group Title
How can you tell when a substance's free energy formation will equal 0 at T = 25 C ?
 updated 2 months ago
 4 replies
 1 Medal
Mathematics

serinaaa:
Group Title
How do you find the reference angle for 13pi/6 ?
 updated 6 months ago
 3 replies
 No Medals Yet
Mathematics

serinaaa:
Group Title
HELP!!!!
Use graphs and tables to find the limit and identify any vertical asymptotes of
 updated one year ago
 8 replies
 No Medals Yet
Mathematics

serinaaa:
Group Title
Use graphs and tables to find the limit and identify any vertical asymptotes of the function.
lim 1/(x1)^2
…
 updated one year ago
 6 replies
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Mathematics

serinaaa:
Group Title
How do you find a limit from a graph?
 updated one year ago
 12 replies
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Mathematics

serinaaa:
Group Title
for this limit:
lim x^3+1/x^5
x>0
…
 updated one year ago
 4 replies
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Mathematics

serinaaa:
Group Title
HELP! Use graphs and tables to find the limit and identify any vertical asymptotes of?
lim 1/x5
x>5
 updated one year ago
 5 replies
 No Medals Yet
Mathematics

serinaaa:
Group Title
Help please! how do you find the limit, if it exists for this function?
 updated one year ago
 6 replies
 3 Medals
Mathematics

serinaaa:
Group Title
Can someone help me with determining the limit of a graph, and if the limit exists?
 updated one year ago
 9 replies
 No Medals Yet
Mathematics

serinaaa:
Group Title
Find an equation in standard form for the hyperbola with vertices at (0, ±6) and foci at (0, ±9).
 updated one year ago
 4 replies
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Mathematics

serinaaa:
Group Title
HELP!
The position of an object at time t is given by s(t) = 3  4t. Find the instantaneous velocity at t = 8 by finding the derivative.
…
 updated one year ago
 37 replies
 1 Medal
Mathematics

serinaaa:
Group Title
How do you write the summation notation for: 4  24 + 144  864 + ... ?
 updated one year ago
 10 replies
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Mathematics

serinaaa:
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Help!!! How do you determine which equation would go with a graph of a limacon curve?
 updated one year ago
 1 reply
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Mathematics

serinaaa:
Group Title
How do you eliminate the parameter for this?
…
 updated one year ago
 12 replies
 1 Medal
Mathematics

serinaaa:
Group Title
how do you find the sum of the first 12 terms of the sequence.
1, 4, 9, 14, . . .
…
 updated one year ago
 19 replies
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Mathematics

serinaaa:
Group Title
Can someone please help me! How do you write the sum using summation notation, assuming the suggested pattern continues.
8  3 + 2 + 7 +…
 updated one year ago
 2 replies
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Mathematics

serinaaa:
Group Title
Let u = <4, 3>. Find the unit vector in the direction of u, and write your answer in component form.
Can someone help please!
 updated one year ago
 24 replies
 1 Medal
Mathematics

serinaaa:
Group Title
how do you express 2i in trigonometric form?
 updated one year ago
 10 replies
 1 Medal
Mathematics

serinaaa:
Group Title
Identify intervals on which the function is increasing, decreasing, or constant.
g(x) = 4  (x  6)2
…
 updated one year ago
 9 replies
 No Medals Yet
Mathematics

serinaaa:
Group Title
Verify the identity.
cos (x  y)  cos (x + y) = 2 sin x sin y
…
 updated one year ago
 3 replies
 1 Medal
Mathematics

serinaaa:
Group Title
Find the remainder when f(x) is divided by (x  k)
f(x) = 3x4 + 11x3 + 2x2  7x + 61; k = 3
 updated one year ago
 3 replies
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Mathematics

serinaaa:
Group Title
Find all solutions in the interval [0, 2π).
cos x = sin x
 updated one year ago
 16 replies
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Mathematics

serinaaa:
Group Title
How do you find all the solutions to sin^2x + sinx = 0
Is it by factoring? since I got (sinx)^2+sinx= 0
 updated one year ago
 2 replies
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Mathematics

serinaaa:
Group Title
From a boat on the lake, the angle of elevation to the top of a cliff is 11°50'. If the base of the cliff is 1568 feet from the boat, how hi…
 updated one year ago
 7 replies
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Mathematics

serinaaa:
Group Title
Find the remainder when f(x) is divided by (x  k)
f(x) = 4x^3  6x^2 + 3x + 1; k= 2
 updated 2 years ago
 13 replies
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Mathematics