Find an equation of the tangent to the curve at the point corresponding to the given value of the parameter. X = t cos(t), y = t sin(t); t = π.

The circumference of a redwood tree trunk is 20π ft, and it is 100 ft tall. what is the approximate volume of the redwood tree trunk? 1,000π ft3 10,000π ft3 4,000π ft3 40,000π ft3

What is the radical expression that is equivalent to the expression 27 1 over 5?

How many terms does the polynomial x^2 y^2 have