Find the unit tangent vector T(t) at the point with the given value of the parameter t. r(t) = cos ti + 6tj + 4 sin 2tk, t = 0

Find the slope and the y-intercept if there's one and the equation of the line given these two points( 3, 2) and( 3, -4)

The first floor of marcus’ house is 1,440 square feet. he will cover 1,033 square feet with wood and the rest with tile. a box of tiles will cover 11 square feet. how many boxes of tile does marcus need to buy to cover the floor?

How would you find the height of points on the circle? the topic is trigonometry.