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Solve, giving your answer to 3 s.f. : 2^(2x) - 6(2^(x) ) + 5 = 0

2 2x - 6(2 x ) + 5 = 0let y = 2 x y 2 - 6y + 5 = 0(y-5)(y-1) = 0 y=5, y=12 x = 5, therefore, x = log 2 5 = 2.32 (3 s.f.)2 x = 1, therefore, x = log 2 1 = 0
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Answered by Jess O. • Maths tutor
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What are the main differences between Type 1 and Type 2 Diabetes?

Type 1 diabetes presents younger than type 2, and results from an autoimmune reaction of the pancreas. This means patients have no insulin available to store glucose as glycogen. Type 2 diabetes presenets la...
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Answered by Rahul K. • Biology tutor
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How are grana adapted to their function in photosynthesis? [2 marks]

They contain photosynthetic pigments to absorb light i.e. chlorophyll a2. They have a large surface area for light absorption3. They contain electron carriers / ATP synthase
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Answered by Amaani I. • Biology tutor
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Which of the Group 7 elements has the highest boiling point and why?

Iodine, because the forces between the iodine molecules are stronger than in the other halogens.
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Answered by Amaani I. • Chemistry tutor
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Find the gradient of the function f(x,y)=x^3 + y^3 -3xy at the point (2,1), given that f(2,1) = 6.

Firstly, establish that the correct method to do this is via differentiation: specifically implicit differentiation. To find the gradient, we need to find dy/dx . The differential with respect to x of x 3 = ...
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Answered by Daniel D. • Maths tutor
6756 Views