A waterfall has a height of 1700 feet. A pebble is thrown upward from the top of the falls with an initial velocity of 12 feet per second. The height of the pebble \( h \) in feet after \( t \) seconds is given by the equation \( h=-16 t^{2}+12 t+1700 \). How long after the pebble is thrown will it hit the ground?

Which Excel function is used to find the margin of error for a confidence interval fo mean? Select one: a. average b. confidence.t c. margin.error.function d. mear

The equation of a motion of a train is given by \( m \frac{d u}{d t}=m k\left(1-e^{-t}\right)-m c v \) where \( v \) is the speed, \( t \) is the time and \( m k \) and \( C \) are constants. Dpermine the speed, given that \( v=0 \) at \( t=0 \)

berikut (FSTh fo

2. A shopkeeper bought an article for \( \mathrm{Rs} .2,100 \) and sold it at \( 15 \% \) profit. Find the sale price of the article.

A regular octagon is inscribed in a circle of rodius \( 5 \sqrt{2} \) units. Find the area of the cicele that is outside the octagon.