RM7,000 was invested on 4 May 2020 at a simple interest rate of r%

. The amount on

2 August 2020 using Banker’s rule was RM7,052.50. Calculate the simple interest

rate.​

One expression below in undefined, and the other expression has a well defined value. which expression is undefined and explain why it has no value. which expression is defined? what is the value of that expression and how do you know? what is a different expression using a trig inverse function that is also undefined?

What is f(3) for the quadratic function f(x)= 2x^2+ + x - 12

In triangle opq right angled at p op=7cm, oq-pq=1 determine the values of sinq and cosq