A pebble falls off of a cliff at a height of 784ft. If the equation for height as a function of time is h(t) =-6t^2+initial height where (t) is time in seconds and h(t) is height in feet, how many seconds will it take for the pebble to hit the grou

Xis equal to three

Answer: d. 39 cmin the diagram, the approximate length of the minor arc de is 39 centimetres.step-by-step explanation: the formula for the length of an arc in a circle is as displayed below.let the length of the minor arc de = xx = 2( pi )r × angle of sector / 360°from this, we will substitute the values given from the problem into the formula to obtain the length of the minor arc de.x = 2( pi )r × angle of sector / 360°r = radius = 25cmpi as an approximate value = 3.14angle of sector = 120°x = 2( 3.14 )( 25 ) × 120° / 360°x = 157 × 1 / 4x = 39.25x = 39 ( rounded to the nearest whole number as an approximate value )

The answer is : 63explanation 60 times 0.05360+363