Mrs. Rowan allotted 30 minutes at the beginning of class for her student to complete an exam the last student took 42 minutes to complete the exam what is Mrs. Rowan's percent error?

If 90° < θ < 180° and cotθ = -1/3, then cscθ =

The area (a) of a circle with a radius of r is given by the formula and its diameter (d) is given by d=2r. arrange the equations in the correct sequence to rewrite the formula for diameter in terms of the area of the circle.

Study results indicate that the mean length of time people spend on a bus in a city is between 21.2 min and 24.5 min what is the study margin of the error?