A person whose eye level is 5' 9" above the ground is standing 10.5 yards from the base of a
building. The person estimates their angle of elevation to the top of the building is 60°. What is
the height of the building to the nearest foot?

Idon’t understand! use slope intercept form to solve: through: (2,5) slope= undefined

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.

The marked price of an article is 25% above its selling price and the cost price is 30% less than its marked price . find the discount percent and gain percent. only a brainlest can solve it i will mark you brainlest