How can you quickly confirm that a person’s web camera is functional?

Consider the following image of a cell inside a solution:   The percentages represent the solute concentration of the cell and the solution respectively. The cell membrane is semipermeable, so water can move freely across the membrane, but solutes cannot. Use this to answer the following questions.

The _______ represents the angle an observer must look up from the original horizontal line of sight to see an object that is higher than the observer. It is sometimes referred to as the angle of inclination.

Probabilities are represented by fractions, by percents and by decimal numbers between 0 and 1.

The quadratic equation y = (x – 7)(x + 5) has an x-intercept of 5.

In order to use the Sine Law to solve for an unknown side, two angles and one side must be known and the side can be located anywhere in the triangle.

A test had 10 questions. The scores on a test are recorded below.             7,  8,  9,  3,  9,  7,  8,  10,  7,  9,  6,  1  a)    Calculate the mean of the data. (2 marks)  b)    Calculate the median of the data. (2 marks)  c)    Calculate the mode of the data. (1 mark)  d)    Which measure of central tendency would be the best to use for this set of data? Explain. (2 marks)  e)    Calculate the range of the data.  (1 mark)

The Osborne’s wanted to make a deposit to provide their daughter with $20 000 for her post-secondary education at the age of 18. How much would have to be deposited if they made the deposit when their child was 5 and the investment earned 9% compounded quarterly? (4 marks)

Give two examples of fixed costs for operating a vehicle. (2 marks)

A triangular roof truss is being constructed. One side of the truss is 14 m. Another side is 8 m and the angle between the two trusses is 40º. Calculate the length of the third side of the truss. (3 marks)