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Triangle ABC has perimeter 20 cm. AB = 7 cm. BC = 4 cm. By calculation, deduce whether triangle ABC is a right-angled triangle.

This is a question I recently tackled with one of my tutees from the edexcel GCSE specimen papers. I would begin to tackle any geometry question like this by drawing the triangle in question. We are given th...
CH
Answered by Carter H. • Maths tutor
6306 Views

What is the gradient of a line with the equation y=4x+5?

The Gradient is 4, this is because this is a straight line graph and it is in the form of y=mx+c, with m being the gradient and c being the y intercept. If the equation was y=6x+3, the gradient would be 6. W...
TM
Answered by Tom M. • Maths tutor
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How do you translate "Yesterday it rained, however, so I decided to go by bus." ?

I would translate this sentence as "Però, ieri ha piovuto, quindi ho deciso di andare con l'autobus." As you can see, I rearranged the two conjunctions to avoid the sentence sounding too heavy, but...
JV
Answered by Jodie V. • Italian tutor
2420 Views

In 2014, Donald's weekly pay was $640. In 2015, Donald's weekly pay was $668,80. Work out the percentage increase in Donald's pay between 2014 and 2015.

To work out the percentage increase, you need to find out the change in his weekly wage between the two years, and divide it by his original pay. You can use the formula (new-old)/old. His new wage is $668.8...
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Answered by Aadil S. • Maths tutor
7022 Views

How many roots does the following equation have? 2x^2 + 4x +2 = 0

(b 2 - 4ac) 1/2 = 0 ---> 1 root
RB
Answered by Rayan B. • Maths tutor
4306 Views