gem grading services

The dihalo derivatives in which both the halogen atoms are attached to the same carbon atoms are known as gem-dihalides. When a gem-halide is boiled with alcoholic KOH corresponding alkyne is obtained. For example,..

Find the average percentage raise of salary if a person receives 25% raise after 1 year of service and 15% raise after the second year of service. => 19.36% or 1.199% or 19.9% or 20%..

A travel agency maintains its airline service by the tree diagram. What is the probability of choosing Airplane-X to travel? => 1 or 1 3 or 1 2 or None of the above..

The seat numbers of all the passengers travelling in an aircraft were noted down and a few were selected through a lot. The selected passengers were requested to convey their opinion on the service of the airlines by filling up a questionnaire. What is the sampling method used in this cas..

On a given tennis court, the distance between the base line and the net is 10 m and the distance between the service line and the net is 5 m. The net is 0.9 m high. A player serves the ball directly above the base line. (Assume the ball travels in a straight line.) What is the minimum hei..

The hourly wage ( y ) of the workers of a manufacturing unit is fixed as y = 0.32 t + 9.62, where t denotes the number of years of service of the employee. According to this model, what is the number of years of service of an employee earning an hourly wage of $16.66? => 9 or 32..

Eddy works at an automobile servicing center. Each day he earns $27 and an additional of $3 for washing a car. His daily earnings is modeled by the equation, T = $27 + $3 n , where T = total earnings, n = number of cars. Which of the following graphs best suits the situation? => Graph 4 o..

A researcher wishes to examine whether there is a correlation between cost of internet service per month and degree of customer satisfaction.The data collected is shown here. Calculate the correlation coefficient and describe the relationship. Dollars 12 24 14 12 18 6 9 18 17 20 Satisfact..

A telephone service charges $10 per month plus 15 cents per minute. The table shows the relationship between the number of minutes and the cost. Use the rate of change to identify a linear equation for the data shown in the table. Number of Minutes ( x ) 10 20 30 40 50 Cost in Dollars ( y..

1. Diamond is used as a gem (except the black variety) due to its brilliance. 2. Black variety of diamond is use for cutting glass, as drilling bits for industrial drills, for polishing other diamonds e..