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A group of 35 students were asked if they owned a laptop or a TV. 10 said they had both. 12 said they had only a TV. 20 said they had atleast a laptop. A student is picked at random. What is the probability that the student has neither a laptop or a TV?

So there are 35 students in total. 10 which have both a laptop and a TV and 12 with only a TV. There are 20 students that own laptops. We have to find out how many students only have laptops. To do this we h...
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Answered by Chris L. • Maths tutor
4899 Views

Describe the process of phagocytosis of a pathogen.

The membrane of the phagocyte surrounds the pathogen and engulfs the pathogen. Enzymes inside the phagocyte break down the pathogen and destroy it. Pathogen proteins can then be presented on the surface of t...
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Answered by Harriet B. • Biology tutor
3441 Views

A graph of a linear equation passes through 2 points, (2,9) and (-3,-1). Find the equation of the line in the form y=mx+c.

So first of all in finding the equation of this line, we shall find the gradient of the line which is represented by m. To find m, we use a formula and the values in the 2 coordinates. The first coordinate w...
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Answered by Ryan M. • Maths tutor
3982 Views

Write 16 × 8^(2x) as a power of 2 in terms of x

Aim: Our answer should be written in the form 2 a+bx where a and b are constants that we are trying to find. Firstly, we can write 16 in terms of a power of 2: 16 = 4 2 = 4 x 4 = (2 x 2) x (2 x 2) = 2 4 Simi...
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Answered by Sophie L. • Maths tutor
10477 Views

What is the subjunctive and how do I form it?

The Spanish subjunctive is a "MOOD" which means it reflects the attitude or the feelings of the person who is speaking. You can have a subjunctive mood in different verb tenses (subjunctive present...
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Answered by Emma T. • Spanish tutor
2765 Views