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Refer to question taken from Edexcel Maths Paper

Refer to question taken from Edexcel Maths Paper.
AB
Answered by Angus B. • Maths tutor
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How do you solve a quadratic equarion

with quadratic equations you will either get two x values for your answer, one value or zero values. This can be tested by rhe value of your discriminant when values have been subbed in. If it’s greater than...
HB
Answered by Henry B. • Maths tutor
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A plane travels at the speed of 213 miles per hour. Work out an estimate for the number of seconds it takes a plane to travel 1 mile.

There a 60 minutes in one hour.There are 60 seconds in one minute.60 multiplied by 60 is 3600.Therefore the plane travels 213 miles in 3600 seconds.To find out how many seconds it takes the plane to travel 1...
Answered by • Maths tutor
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Calculate the total resistance across AB; between A and B are two parallel branches, one branch with a 3 Ohm and a 5 Ohm resistor, the other branch with a 4 Ohm resistor.

1/Rt=1/R1+1/R2 R1=3+5=8 R2=4 Rt=1/(1/8+1/4)=8/3 Ohms = 2.67 Ohms (2 D.P.)
PA
Answered by Peter A. • Physics tutor
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How is memory used in a computer system?

Memory is most computers that use the Von Neuman architecture is used to store program instructions and data. When any program or process is doing something inside a computer the computer used RAM (random ac...
Answered by • Computing tutor
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