when do we say say 2 sets are different?

A hare says to a tortoise " I can cover ten times the distance that you can travel in the same amount of time ". The tortoise proudly replies " I can cover one mile in just 2 hours ". How far can the hare go in one hour? => 4 mi or 8 mi or 5 mi or 7 mi..

Mixtures Compounds A mixture can be separated into its constituents by physical processes (filtration, evaporation, sublimation, distillation) A compound cannot be separated into its constituents by physical processes. It can be separated by chemical means A mixture shows the pro..

Katie says without drawing the graph of y = - 2 x 2 + 4 , we can find out if its vertex is above or below the point (0, 0) . Is she correct? => No or Yes..

The mean costs of two sets of soaps of same weight are $4.30 and $4. If the sets were 40 and 30 units in size with the standard deviations $0.60 and $0.90, then find the z score value and verify if they differ in their mean cost at 95% confidence level. => 1...

Hook two spring balances as shown in the diagram and pull from either side. You will notice that the pointers on the spring balances read equally (say 100 N). This shows that both the spring balances are registering equal force. Blow a balloon and hold its neck tightly facing d..

Are the two lines drawn, the lines of symmetry for the figure? => Can′t say or I don′t know or Yes or No..

A report on education says that the average salary paid to public school teachers in a state is $43,300 per annum. A statistician interviewed 15 public school teachers and found the average annual salary as $45,850 with a standard deviation $3,800. At α = 0.02, what is the test valu..

Locus of points equidistant from two given points - Mark two points M and N, 6 cm apart. Locate points P 1 and P 2 on either side of AB such that P 1 M=P 1 N=3.5 cm Locate points Q 1 and Q 2 such that Q 1 M = Q 2 M = 4.5 cm Observe the pattern of ge..

The number of hours Kelsey practices music on each day is given in the table. Say whether the number of hours she practices music the next day would increase. Day Number of hours of practice 5 th June 1/2 hour 6 th June 1 hour 7 th June 1 and 1/2 hour 8 th June 2h..

What can you say about the lines 3 x + 2 y + 5 = 0 and 2 x - 3 y + 7 = 0? => collinear or at 60 o with respect to each other or parallel or perpendicular..