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Nouns in Spanish have a gender. Is it hard to tell when a noun is masculin or feminine?

A big difference between Spanish and English is the fact that Spanish nouns have a gender, so, for instance, we would say that a table is feminine and a book is masculin. This is important because if a...

CR
Answered by Carmen R. Spanish tutor
3175 Views

Solve the simultaneous equations: y = 4x^2 - 9x - 1 and y = 5 - 4x

Subtract the second equation from the first, giving you: 4x^2 -5x -6

Factorise the quadratic: (4x + 3)(x - 2)

x = -0.75

x= 2

Now substitute these...

DA
Answered by Damilola A. Maths tutor
9724 Views

Why is it not '我是好'? In basic adjectival sentences, why is the copula verb 'to be' not used?

Take the simple sentence 'I am good' - 'I' is the subject, 'am' is the first-person of the verb 'to be', and 'good' is the adjective.In English, the verb 'to be' is needed in adjectival sentences to link ...

KY
Answered by Kwan Yee L. Mandarin tutor
6736 Views

How do we differentiate y=a^x when 'a' is an non zero real number

Firstly we must change it into a form we can deal with. To do this we take the natural log (ln) of both sides.ln(y)=ln(ax) ln(y)=x(ln(a))    using our rules of logsFrom here we differentiate. T...

MJ
Answered by Marcus J. Maths tutor
7485 Views

If (m+8)(x^2)+m=7-8x has two real roots show that (m+9)(m-8)<0 where m is an arbitrary constant

For this we are going to test our knowledge of discriminats and factorisation. Firstly we will format the equation as (m+8)x2+8x+(m-7)=0From here we can see it takes the form ax2+bx+...

MJ
Answered by Marcus J. Maths tutor
4628 Views

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