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Expand the following equations

a. x(x+4)b. 3x(x+4)c. (x+8)(x+3)d. (x+7)^2

KS
Answered by Kane S. Maths tutor
3042 Views

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...

AM
Answered by Anuj M. Maths tutor
6451 Views

How do I write an introduction for my essay?

A good introduction establishes your main line of argument and links it directly to the essay question. You also can outline one or two of your main points without going into too much detail, as this is w...

SA
3319 Views

Outline Asch's (1951) experiment and the findings of the study.

Asch's (1951) lab experiment consisted of 50 male college students judging the length of lines to investigate conformity. The group of 8 included the 'naive' participant with 7 confederates and each perso...

CA
4275 Views

What are they assessing?

The TSA claims that they are testing an individual for 'problem-solving skills, including numerical and spatial reasoning. critical thinking skills, including understanding argument and reasoning using ev...

SA
1346 Views

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