Is 6.34 repeating a rational or irrational number?

Suppose that x and y are both differentiable functions of t and are related by the given equation. use implicit differentiation with respect to t to determine startfraction dy over dt endfraction in terms of x, y, and startfraction dx over dt endfraction .

Simplify the expression 10/11(22z) + (a+5) -1

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much