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- a projectile launched at t=0 (t is measured in seconds) follows a path given by x=30t, y=-5t^2+80t, where x is the horizontal direction and y is the upward direction. the projectile lands after a. 16 seconds b. 8 seconds c. 4secondsRepresent the plane curve by a vector-valued function. y = x+ 1 r(t) = ti + (t+1)j Need Help? Read ItRepresent the parabola y = x2 + 1 by a vector-valued function
- t = v/u (w^2 - s) Rearrange the equation to make w the subject where v and u are not equal to 0 and all variables are positive values.Find the tangent plane to the equation z = x? + 5y + 3y at the point (-5,-2,39)Find the directional derivative of the function: f(x, y) z² + 4y at the point (0, 0) in the direction of the vector (– 3, 1). You may enter your answer as an expression or as a decimal with at least 4 significant figures. |