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marfre has helped students
times in
Activity
Summary of contribution activity by day
Longest streak: 9 days
marfre
marfre joined Socratic 1 week ago. marfre hasn't written a biography yet.
3,200 karma
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Activity
50 Answers
3 Edits
1 Asked
@marfre
marfre
wrote an answer to
How do you solve #lnsqrt(x-8)=5#?
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2 days ago
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@marfre
marfre
wrote an answer to
How do you calculate #(2+3i)/(-3-2i)#?
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2 days ago
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@marfre
marfre
wrote an answer to
What are the absolute extrema of #f(x)=sin2x + cos2x in[0,pi/4]#?
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2 days ago
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@marfre
marfre
wrote an answer to
How do you verify if #f(x)=x^2+5; x>=0; g(x)=sqrt(x-5)# are inverse functions?
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3 days ago
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@marfre
marfre
wrote an answer to
How do you use a calculator to evaluate #sin34.2^circ#?
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3 days ago
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@marfre
marfre
wrote an answer to
How do you find #f(x)+g(x), f(x)-g(x), f(x)*g(x), (f/g)(x)# given #f(x)=x^2-2x# and #g(x)=x+9#?
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3 days ago
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@marfre
marfre
wrote an answer to
How do you evaluate #arccos(-1)# without a calculator?
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3 days ago
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@marfre
marfre
wrote an answer to
The perimeter Î”ABC is 30 feet. AB = 5x-7; BC = 3x + 1; AC= 4x. What are the angles in this triangle?
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3 days ago
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@marfre
marfre
wrote an answer to
How do you divide #\frac { ( m - 2) ^ { 2} } { n ^ { 2} } \div \frac { 8m - 16} { 4n }#?
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3 days ago
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@marfre
marfre
wrote an answer to
How do you evaluate #-30- ( - 15)#?
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3 days ago
·
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