To start the proof of the law of cosines, an altitude is constructed. which of the following is formed due to the construction of the altitude in a non-right triangle?
one right triangle
one acute triangle
two right triangles
two acute triangles

During your cycling trip, you and your friends often stayed in hostels. the prices of these are listed below. hostel standard room (price per night) with breakfast (price per night) super sleep hostels £22.45 £28.65 normandy nights £18.55 £25 zzzola hostels £24.50 £30.99 belgian beds £11.20 £18.55 night-time rest days ? £33 what is the range in cost for a single night, including both standard room prices and with breakfast prices?

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 4x^2 - 19x- 5

Factor and solve to find roots x squared -x - 90 =0