Question 9 a 32 ft ladder leans against a building so that the top of the ladder touches the building at a point 23 ft above the ground. to the nearest tenth of a foot, how far from the bottom of the building is the bottom of the ladder? 30.1 ft 22.2 ft 39.4 ft 27.5 ft

Find the required measurements of the following trapezoids. a = 8 cm b = 16 cm h = 10 cm

Ascientist wants to use a model to present the results of his detailed scientific investigation. why would a model be useful? a )because the model makes the concepts easier to understand b) because the model is easy to put together and to use c) because the model prevents other scientists from asking questions d) because the model requires the audience to pay full attention to it i don't know what to choose because between a and d a is much more likely than d because it only wants to get the attention of the audience. i'm confuse.

Solve the following pair of equations for x and y: ax/b_ by /a= a +b; ax - by = 2ab