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How do I assess the usefulness of a source?

The two most important things to consider when analysing a source are provenance and content. Provenance means where the source comes from, so ask questions like, who created the source? Why did they create ...
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Answered by Alfie H. • History tutor
7474 Views

Solve x^2 = 4(x – 3)^2

x 2 = 4(x-3) 2 x 2 = 4(x-3)(x-3) - showing that these are double bracketsx 2 = 4(x 2 - 6x + 9) - expanding the double bracketsx 2 = 4x 2 - 24x + 36 - multiplying the 4 by the expression inside to remove the ...
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Answered by Emily L. • Maths tutor
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Acabas de pasar tus vacaciones en España. Escríbele una carta a tu amiga española. Escribe aproximadamente 90 palabras en español.

Hola ! Acabo de pasar una semana en España para mis vacaciones. Fui con mis padres y mi hermano, lo pasé bomba! Fuimos a Madrid y visitamos muchos lugares de interés. Normalmente, no me gustan los museos per...
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Answered by Emily L. • Spanish tutor
3794 Views

Expand the following equations

a. x(x+4)b. 3x(x+4)c. (x+8)(x+3)d. (x+7)^2
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Answered by Kane S. • Maths tutor
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There are 10 boys and 20 girls in a class. In a class test, the mean score of the boys is 77. The mean score of the girls is 80. What is the mean score of the whole class?

To calculate the mean of the whole class:1) Find the sum of the individual scores of the whole class. Boys: 10 x 77 = 770Girls: 20 x 80 = 1600Total of Boys and Girls: 770 + 1600 = 23702) Divide the sum of th...
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Answered by Anuj M. • Maths tutor
7916 Views