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i) Make y the subject of the expression x = ((a-y)/b))^1/2 ii) Simplify fully (2x^2 − 8)/(4x^2 − 8x)

i) Square both sides of the expression to make x^2=(a-y)/b

Multiply by b to remove the fraction from the equation and then rearrange to make y the subject.

bx^2=a-y --> y=a-bx^2

i...

Answered by Oscar S. • Maths tutor

4245 Views

How do you balance chemical equations?

Example question: _H₂O --> _O₂+ _H₂ First, work out how many of each element you have on each side. For example in this equation, Left: 2 hydrogen and 1 oxygen Right: ...

Answered by Eve W. • Science tutor

2527 Views

Conjugate the verb and underline the correct option --> Aunque yo ………………………………. (saber) la verdad, no te lo/la podría contar

Aunque yo supiera la verdad, no te la podría contar.

If we analyze the second clause in the sentence, we notice that the verb poder is in the conditional tense. This implies that th...

Answered by Oscar S. • Spanish tutor

2441 Views

Name the three components that make up a nucleotide

First of all a nucelotide is the monomer that makes up DNA. Millions of monomers are joined together to form the double helix of a DNA molecule. A nucleotide is made of a pentose sugar (in the case of DNA...

Answered by Amy S. • Biology tutor

15952 Views

Differentiate x^3 − 3x^2 − 9x. Hence find the x-coordinates of the stationary points on the curve y = x^3 − 3x^2 − 9x

To differentiate, we bring the power down and decrease the power by 1. So x³ becomes 3x², -3x² becomes -6x, and -9x (which can be written as -9x¹ ) becomes -9. ...

Answered by Tutor105800 D. • Maths tutor

9856 Views