What is the work done by a force when the angle θ is 90

The average of three numbers a, b and c is 2 more than c. The average of a and b is 48. If d is 10 less than c, then the average of c and d is:

If the sum of three numbers is zero, then which of the options below will always be equal to the value of the sum of the cubes of those numbers?

If  x = 19 , find x ⁵ - 20  x ⁴ + 20  x ³ - 20x ² + 20x  - 20 = ?

Given that x⁸-34x⁴+1=0, x>0. What is the value of (x³+ x^-3)?

If x^2a = y^2b =z^2c ≠ 0 and x² = yz, then the value of (ab + bc + ca) /bc is :

when x =4 and y =-6 then find the value of 27x³ +58x²y +31xy² +8y³?

Given that x = 80, y = -35 and z = -45, Determine the value of [(x³ + y³ + z³)/10³]

22% of ‘x’ is equal to 66% of ‘y’, then find the value of x: y.

If, 4x + y = 10, and 2xy = 8, and 4x > y, then find the value of 64x³ – y³.