Lukecrayonz
 Name:
 Luke Kranz
 School:
 J.W Mitchell High School
 About:
 10th grade
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Questions Asked

Lukecrayonz:
Group Title
Of those numbers whose sum is 70, find the two that have the maximum product. That is, maximize Q=xy where x+y=70
 updated 7 months ago
 11 replies
 2 Medals
Mathematics

Lukecrayonz:
Group Title
How to find the derivative of (4x^4+8)/x^2?
 updated 7 months ago
 11 replies
 2 Medals
Mathematics

Lukecrayonz:
Group Title
Differentiate implicitly to find dy/dx, then find the slope at (2,5)
x^2*y4x^24=0
 updated 7 months ago
 10 replies
 1 Medal
Mathematics

Lukecrayonz:
Group Title
A rectangular plot of farmland will be bounded on one side by a river, and on the other three sides by a single strand electric fence. With …
 updated 7 months ago
 1 reply
 1 Medal
Mathematics

Lukecrayonz:
Group Title
Equation of the tangent line of the graph 8x/(x^2+1) at the origin and (1,4)
These are two separate answers
 updated 7 months ago
 62 replies
 2 Medals
Mathematics

Lukecrayonz:
Group Title
Differentiate implicitly to find d^2y/dx^2
x^33y^3=4
 updated 7 months ago
 26 replies
 5 Medals
Mathematics

Lukecrayonz:
Group Title
Find the pts on the graph at which the tangent line is horizontal. If none exist, state the fact.
 updated 7 months ago
 No Medals Yet
Mathematics

Lukecrayonz:
Group Title
If y=2x^3+8x, find the values of delta y and f'(x)delta x in each case
(a)x=2 and delta x=1
(b) x=2 and delta x=0.008
 updated 7 months ago
 13 replies
 2 Medals
Mathematics

Lukecrayonz:
Group Title
Maximum value of f(x)=x^2*e^(x) over [0,4] is at 2, and x=.5413? Correct?
 updated 7 months ago
 No Medals Yet
Mathematics

Lukecrayonz:
Group Title
The rate of growth of profit in millions from an invention is approximated by P'(x)=xe^(x^2), where x represents time in years. The total p…
 updated 7 months ago
 19 replies
 3 Medals
Mathematics

Lukecrayonz:
Group Title
Find the area under the graph of f over [2,2]
f(x)={4x^2, if x<0
…
 updated 7 months ago
 7 replies
 2 Medals
Mathematics

Lukecrayonz:
Group Title
A deer accelerates at a constant rate from 0 mph to 25 mph in 20 seconds. How far does the deer run during this time?
 updated 7 months ago
 37 replies
 2 Medals
Mathematics

Lukecrayonz:
Group Title
A company determines that its weekly online sales, S(t), in hundreds of dollars, t weeks after online sales began, can be estimated by the e…
 updated 7 months ago
 11 replies
 2 Medals
Mathematics

Lukecrayonz:
Group Title
Find the area of the region bounded by the graphs of the given equations.
y=5xx^2
y=x
 updated 7 months ago
 18 replies
 1 Medal
Mathematics

Lukecrayonz:
Group Title
Integrals: Please explain:)
Evaluate:
 updated 7 months ago
 44 replies
 4 Medals
Mathematics

Lukecrayonz:
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Integral of (5/4)t(t^2+1)^3
 updated 7 months ago
 5 replies
 No Medals Yet
Mathematics

Lukecrayonz:
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Integration
(Putting into equation)
 updated 7 months ago
 9 replies
 1 Medal
Mathematics

Lukecrayonz:
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Need help with integration by substitution!
 updated 7 months ago
 10 replies
 No Medals Yet
Mathematics

Lukecrayonz:
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Integral of lnx^2/5x
 updated 7 months ago
 No Medals Yet
Mathematics

Lukecrayonz:
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Evaluate.
Integral s^5(2+s^6)^8ds
 updated 7 months ago
 13 replies
 3 Medals
Mathematics

Lukecrayonz:
Group Title
Find the area bounded by the given curves
y=x^3
y=4x
 updated 8 months ago
 10 replies
 No Medals Yet
Mathematics

Lukecrayonz:
Group Title
Find the area under the graph of f over the interval [5,8]
8x+3 for x<6
57x for x>6
 updated 8 months ago
 40 replies
 1 Medal
Mathematics

Lukecrayonz:
Group Title
Why is the integral of 17e^t, 17e^t?
 updated 8 months ago
 2 replies
 1 Medal
Mathematics

Lukecrayonz:
Group Title
Antiderivative of 5e^(4t)?
 updated 8 months ago
 15 replies
 1 Medal
Mathematics

Lukecrayonz:
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Area and definite integrals
 updated 8 months ago
 5 replies
 No Medals Yet
Mathematics

Lukecrayonz:
Group Title
Find the area under the given curve over the indicated interval
y=x^2
[2,4]
 updated 8 months ago
 No Medals Yet
Mathematics

Lukecrayonz:
Group Title
Rate of work
 updated 8 months ago
 6 replies
 1 Medal
Mathematics

Lukecrayonz:
Group Title
There are 3 workers working on one project. Worker A can complete it in 8 hours. Worker B can complete it in 6 hours. Worker C is unknown as…
 updated 8 months ago
 1 reply
 No Medals Yet
Mathematics

Lukecrayonz:
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Algebra II question
 updated 8 months ago
 2 replies
 No Medals Yet
Mathematics

Lukecrayonz:
Group Title
??? Whats the answer to x^2+4x+25? why am I getting the wrong answer
 updated 8 months ago
 No Medals Yet
Mathematics
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