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How do I answer 'To what extent' questions?

These questions involve weighing up different components of an event. You may be considering causes, consequences or the level of, for example, opposition. Considering the question is 'to what extent', it...

Answered by Ellen L. • History tutor

73106 Views

3x^3 -2x^2-147x+98=(ax-c)(bx+d)(bx-d). Find a, b, c, d if a, b, c, d are positive integers

(bx+d)(bx-d)=b^2x^2-d^2(ax-c)(bx+d)(bx-d)=(ax-c)(b^2x^2-d^2)=ab^2x^3-ad^2x-b^2cx^2+cd^2ab^2=3b^2c=2ad^2=147-cd^2=98From equations:a=3/b^2c=2/b^2d^2=49b^2Since a, b, c, d are positive integers, b must be 1...

Answered by Laura K. • Further Mathematics tutor

7391 Views

Calculate pH of 0.1M NaOH

pH=14-pOHpOH=-log([OH(-)])NaOH-> Na(+)+OH(-)[NaOH]=[OH(-)]=0.1MpOH=-log(0.1)=1pH=14-1=13

Answered by Laura K. • Chemistry tutor

26859 Views

Write an expression and units for equilibrium constant for this reaction: 2SO2(g)+O2(g)<-->2SO3(g)

Kc=[SO3]^2/([O2][SO2]^2)Units M-molar concentration mol/lM^2/(M*M^2)=1/M=l/mol

Answered by Laura K. • Chemistry tutor

11398 Views

How is DNA transcribed into mRNA?

The gene to be transcribed s unwound and unzipped using the enzyme DNA helicase which breaks the hydrogen bonds between complementary bases. Activated RNA nucleotides then bind to the exposed complemen...

Answered by Shivali J. • Biology tutor

7401 Views