atul--27

f(t)=7t+2/t-3 and g(t)=3t^2-2, obtain g^-1(f(2))

f(t)=7t+2/t-3 and g(t)=3t^2-2, obtain f^-1(g(2))

The average of three 2-digit number is 45. One of the numbers is 70. What is the largest difference between the other two numbers?

The length of cube J is 75% the length of cube K. The volume of cube J is 216 . Find the volume of cube K.

The average of three 2-digit odd numbers is 39. One of the numbers is 65. What is the largest difference between the other two numbers?

How many positive 4-digit integers contain the digit grouping 73 at least once? For instance, 2738 and 7344 are two such integers to include, but 2378 and 5703 do not meet the restrictions. 

Danny tested how far his new Hot Racer could travel along a wooden track. The Hot Racer traveled 40 meters. Danny's teacher said that was 5/6 of the track's length. How long was the track?

The damaging effect of electric shock result from the amount of current that flows in the body. Why, then so we see signs that read “Danger-High Voltage” rather than Danger - High Current?

An aircraft lands on a runway with a speed of 290 kilometres per hour. It stops

after travelling 1000 metres.

(a) Calculate its average acceleration during braking. 

(b) Calculate its speed after 0.5 second.

Does OneClass have any virtual classrooms on Physics learners can attend daily?

An object of mass 1 kg is taken to a height of 5 m from the ground. It is then lifted 10 m higher. Now, it is then moved down by 12 m. Find the total potential energy of the object?