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Find the exact solution to ln(2y+5) = 2 + ln(4-y)

Solution is y = 4e 2 - 5 /2+e 2 By applying log laws we can reach the following: ln(2y+5/4-y) = 2 Given that ln x = log e x :e 2 = 2y+5/4-y Solve linearly : 2y+5 = e 2 (4-y) 2y+5 = 4e 2 - ye 2 2y + ye 2 = 4e...
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Answered by Michael H. • Maths tutor
9520 Views

Find the equation of a line which goes through the points (1,0) and (2,5) in the form of y=mx+c

y = 5x - 5
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Answered by Suleiman J. • Maths tutor
3407 Views

Find the integral of ln x

x*ln|x| - x
SJ
Answered by Suleiman J. • Maths tutor
3650 Views

What is (5+3i)*(3+5i)

The idea here is to explain to the student that i^2=-1, and to expand and simplify the brackets in question just like they would with simple algebra. Therefore: (5+3i)*(3+5i)=15+25i+9i+15i^2=15+34i-15=34i St...
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Answered by Sebastian K. • Maths tutor
3688 Views

Explain why chlorine is more reactive than iodine.

Halogen atoms like chlorine and iodine usually react by gaining an electron to fill their outer energy level in order to resemble the noble gases which are more stable. Chlorine is a smaller atom than iodine...
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