Consistency of a system of linear equation
If a system of linear equations has at least one solution, then the system is called consistent, otherwise it is called inconsistent. Solve the system of linear equations (1) by using method of elimination as studied earlier Multiplying the first equation by a 2 and ..
If a system of linear equations has at least one solution, then the system is called consistent, otherwise it is called inconsistent. Solve the system of linear equations (1) by using method of elimination as studied earlier Multiplying the first equation by a 2 and ..Study the following examples
1. The numbers 2, 3, 5 and 8. 2. The solutions of the equation x 2 - 2x - 15 = 0. 3. The letters of the word "Chase". 4. People living in our locality. 5. The students Mary, Hillary, Catherine. 6. The workers who are absent from the factory. 7. The capital cities of ..
In a class, 50% of the students play basketball, 30% study, and 20% wi..
In a class, 50% of the students play basketball, 30% study, and 20% will go to a movie on the weekends. If a sample of 5 students are randomly selected, then find the probability that three play basketball, one studies and one will go to a movie. =>..
Mary has her computer class everyday at 5:30 p.m. One day, she reached..
Mary has her computer class everyday at 5:30 p.m. One day, she reached 25 minutes late to the class. At what time did she reach? => 5:55 P.M. or 6:25 P.M. or 4:55 P.M. or 6:45 P.M...
Sunny can drink 150 mL of milk everyday. Express the quantity in liter..
Sunny can drink 150 mL of milk everyday. Express the quantity in liters. => 1.5 L or 15 L or 150 L or 0.15 L..
The number of hours each student of a class spends for studying are 5..
The number of hours each student of a class spends for studying are 5, 8, 7, 6, 8, 8, 5, 5, 6, 5, 6, and 5 hours. Pick the histogram that represents the data correctly. => Figure 1 or Figure 3 or Figure 2 or Figure 4..
The number of hours each student of a class spends for studying are 9,..
The number of hours each student of a class spends for studying are 9, 5, 7, 4, 9, 4, 8, 6 and 5 hours. Pick the histogram that represents the data correctly. => Figure 4 or Figure 2 or Figure 3 or Figure 1..
A study of 50 basket ball players showed that their scoring average is..
A study of 50 basket ball players showed that their scoring average is 15.8 points per game. The 90% confidence interval of the mean score for all players is between 14.1 and 17.5. Find the 90% confidence interval of the mean score(μ) if 100 players are considered i..
A statistician analyzed and concluded that the mean time spent by the ..
A statistician analyzed and concluded that the mean time spent by the student per day on studies at home is more than 1.6 hours. The time spent at home on studies by a random sample of 20 students (time spent per day on reading or doing homework) in hours are..
An academician conducted a study to find whether there exists a relati..
An academician conducted a study to find whether there exists a relationship between hours of work in the assistantship and the grades students obtain, and the data collected is shown here: Hours of work A B C D/F >20 hrs 5 10 5 5 10 - 20 hrs 8 11 6..
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