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  ANALYTICAL GEOMETRY QUESTION 1   In the diagram,  E(0;-2), F(-2;k), G(-4;0) and H(-2;1), are the corners of the polygon EFGH on a Cartesian plane.  1.1 Calculate the gradient of GH. (2) 1.2 Determine the numerical value of k if GH//EF  (3) 1.3 Determine the midpoints of EG and FH.  (5) 1.4 Hence, give a reason why EFGH is a parallelogram.  (1) 1.5 Determine the coordinates of J, the -intercept of GH.  (4) 1.6 If FHGS is a parallelogram, determine the coordinates of S.   (2) TOTAL [17]  

1.1) Create a function called CheckName. It must have 1 string parameter and it must return a Boolean.Return true if the string parameter is valid, and false if not.The string is only valid if it is not empty and only contains alphabetical letters, a space or a hyphen. (9) Skep ‘n funksie genaamd CheckName. Dit moet een string parameter hê, en moet ‘n Boolean terugvoer. Indien die string parameter geldig is, moet die funksie ‘waar’ terugvoer (return true), andersins vals. Die string is slegs geldig indien dit nie leeg is nie, en slegs alfabetiese letters, ‘n spasie en ‘n koppelteken bevat. 1.2) Complete the btnRegisterClick procedure. If both name and surname are valid, you will write the name and surname to a textfile called ‘register.txt’. Write them in the formatname#surname#. If the file already exists, add it to the end of the file, if it does not, create it and write to it.Display a message to say that you are creating a new file if this happens.When it is completed, display the message ‘registered’. (15) Voltooi die btnRegisterClick prosedure. Indien beide naam en van geldig is, sal jy die naam en van in ‘n teksleêr skryf genaamd ‘register.txt’. Skryf dit in die formaat naam#van#. Indien die leêr reeds bestaan, voeg dit by aan die einde van die leêr. Indien nie, skep dit en skryf dit daarin.   Vertoon ‘n boodskap om te sê dat jy ‘n nuwe leêr skep indien dit gebeur. Wanneer dit voltooi is, vertoon die boodskap, ‘registered’.      

Centrifuging an uncapped tube of urine is most likely to produce a/an:

All laboratory workers must avoid:

The Internet layer in the 4-layer conceptual model is synonymous with the ________________ layer in the OSI model.

In Lambert-Eaton Syndrome antibodies destroy voltage-gated Calcium channels in the pre-synaptic terminal. Muscle weakness experience by person’s with this syndrome is due to _____________________ release of neurotransmitter and _________________ excitation of muscle cells.

Loss of ___________ sensory function leads to difficulty with joint reposition sense.

Which of the following would NOT take place during exercise or vigorous physical activity?

The electrical input from skin receptors is carried to the central nervous system through ______________ axons.

Which of the following tissue types is avascular, has a continuously renewing cell population, and is attached to an underlying basement membrane?