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Explain how it is possible for two parents without blue eyes (a recessive trait) to have a child with blue eyes

This would be possible if both parents were carriers of the allele for blue eyes (heterozygous). This means each would have one blue eye allele and one non blue eye allel...

SB
Answered by Sylvie B. Biology tutor
2351 Views

What benefits did the First World War bring to the American economy? [4 marks]

America benefited from taking the markets of countries at war and retaining the domestic market after the war. During the war, the US economy boomed due to one-way war trade to European powers. Raw and fi...

SB
Answered by Sophie B. History tutor
10352 Views

By completing the square, find the solutions of x which satisfy the equation x^2+14x-1=0

Using the general complete the square formula, where x2+bx+c=0 becomes (a+b/2)2+b2+c=0, we get (x+7)2-72-1=0 This can be rearranged to show that (x+7...

IF
Answered by Immie F. Maths tutor
2511 Views

A person swims from a depth of 0.5m to 1.7m below the surface of the sea. Denisty Sea Water = 1030 kg/m^3. g=Gravitational Field Strength = 9.8 N/kg. Calculate the change in pressure on the swimmer and give the unit.

Use equation: Pressure = density x depth in the fluid x gravitational field strength. We know the in increase in pressure will be the difference between the Final Pressure (at 1.7m) and the Initial Pressu...

JS
Answered by Jack S. Physics tutor
3638 Views

For the equation, 5(7x + 8) + 3(2x + b) ≡ ax + 13. Find the values of a and b. You may use a calculator.

By expanding the brackets on the left hand side of the equation you get,35x + 40 + 6x + 3b and by simplifying you get 41x + 40 + 3b.by comparing the x and constant terms on either side you find that a = 4...

DB
Answered by David B. Maths tutor
10836 Views

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