The force of gravity pulling on an object down a hill is its weight multiplied by the sine of the angle of elevation of the hill.
with how many pounds of force is gravity pulling on a 3000 lb car on a hill will a 3 degree angle of elevation?
what i did: sin3=.0523 .0523*3000 = 157 lbs (rounded) is this correct?

The graph of the quadratic function shown on the left is y = –0.7(x + 3)(x – 4). the roots, or zeros, of the function are . determine the solutions to the related equation 0 = –0.7(x + 3)(x – 4). the solutions to the equation are x =

You are responsible for designing a new city. you are inspired by pierre charles l'enfant, who laid out the streets of our nation's capital. numbered streets run north and south, and lettered streets run east and west. avenues are named after states, and they intersect the streets on a diagonal. the streets are parallel and the intersections form similar triangles. 18th st. is 454 meters long and the intersection of 18th and k st. is 207 meters from connecticut ave. if 19th st. and k st. is 385 meters from connecticut ave., what is the length of 19th st.?

Which of the following expressions are equivalent ?