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How do you complete a square

If you are given the equation y = x 2 +4x+1 First you determine what is in the squareMake sure your x 2 term has no coefficientFind half the coefficient of the x termThat is your bracket term in this case - ...
JR
Answered by Joshua R. • Maths tutor
3470 Views

Name and describe the function of the different organelles within a cell, and compare the differences within a plant and an animal cell.

Nucleus- controls cell's activity. DNA transcription occurs here. Stores DNA (genetic material).Cytoplasm- some cell reactions occur here. Fluid-Jelly-like environment. Glycolysis occurs here.Mitochondria-si...
AT
Answered by Anaelle T. • Biology tutor
3729 Views

find the roots of the equation 7x^2+11x-2=0 in exact form

since the values are too difficult to calculate from factorising, we use the quadratic formula ((-b)±(b^2-4ac)^(1/2))/(2a).putting the values in as (ax^2+bx+c=0) we find the roots in exact form are;(-11+(177...
MP
Answered by Matthew P. • Maths tutor
3890 Views

what is differentiation for?

When differentiating you find the gradient of the function/line, this means how fast does the function goes up or down.
RB
Answered by Richard B. • Maths tutor
3271 Views

What are reaction rates and what are the associated factors?

Reaction rate is the speed at which a reaction will occur.Increasing the temperature, pressure and concentration will increase the reaction rate.
MA
Answered by Moneeb A. • Chemistry tutor
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