PATTERNS, SEQUENCES AND SERIES  QUESTION 2 2.1 Given that the second term of a geometric sequence is 12 and the seventh term is –0,375, determine: 2.1.1 the general formula of the sequence (4) 2.1.3 Write down the sum of the above sequence to infinity in sigma notation. (2) 2.1.4 Determine the answer to the above sum. (2) 2.2 Given the following sequential pattern:      Right click to open diagrams in a new “tab”.     Determine   2.2.1 the general formula for the total number of blocks in each pattern. (4) 2.2.2 the general formula for the number of white blocks in each pattern. (1) 2.2.3 the total number of blocks in the fifteenth pattern. (2) 2.3.1 Determine the value(s) of  in the interval [0; 90°] for which the following sequence will be geometric:

3.2 The diagram below shows the graphs of a parabola, and a logarithmic graph, . The equation of the parabola has the form  . The equation of the logarithmic graph has the form

 Blood volume varies with 

 The normal pacemaker of the heart is the 

 The right atrium receives blood directly from 

 The normal white blood cell count is 

 Hematocrit is 

 The percentage of red blood cells in a sample of human blood is normally about 

 The pain of angina pectoris comes from a blockage in an artery that supplies the 

 Athletes abuse erythropoeitin (EPO) because it