A model train is built on a 1:40 scale. If the height of the model is 4.5inches, how many inches tall is the actual train? *

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 .

How many solutions does the nonlinear system of equations graphed bellow have?

Given the sequence 7, 14, 28, 56, which expression shown would give the tenth term? a. 7^10 b. 7·2^10 c. 7·2^9