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1iii) Solve 7/2x^2+13/4x+1=2

In order to solve this trickier problem, the quadratic equation must be applied x=[-b +- sqrt(b^2-4ac)]/2a Apologies for messy notation, full solution will be demonstrated during interview clearly when white...
KI
Answered by Kishwar I. • Maths tutor
4068 Views

1ii) sketch y=x^2-4x-21

A parabola shape with x intercepts at x = -3 and x = 7 and the y intercept at y = -21
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Answered by Kishwar I. • Maths tutor
4295 Views

1i) solve x^2-4x-21=0

Factorise to get (x+3)(x-7)=0 So you can see that x = -3 or x =7
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Answered by Kishwar I. • Maths tutor
4417 Views

Describe the difference between the function of a receptor and the function of an effector. Give examples.

When seeing this sort of question, I would handle it by explaining what both a receptor and an effector is firstly and giving examples. Secondly, I would explicitly state the difference to make sure the answ...
AM
Answered by Ashni M. • Biology tutor
28173 Views

What makes up a balanced diet?

A balanced diet supplies all the essential nutrients for the body to function. There are 7 essential nutreints, each with a differnt function in the body. Carbohydrates provide energy Fats/lipids act as an e...
VH
Answered by Vicky H. • Biology tutor
5019 Views