2. a skydiver jumps from a plane from an altitude of 6000 ft. an observer on the ground measures the skydiver’s altitude at time t = 0 to be 4500 ft. the linear graph shows the skydiver’s altitude at various times during her descent.
(a) identify the y-intercept. how does the y-intercept relate to the skydiver’s position relative to the ground? explain.
(b)determine the slope of the line. according to the slope, is the skydiver ascending or descending and what is the rate of ascent or descent? explain. (c) identify the x-intercept. what does the x-intercept mean in this context? explain. (d) write an equation for the line.

answer:

total cost for tiles and paints is $924.  

step-by-step explanation:

we have been given that a community hall is in the shape of a cuboid. the hall is 40m long 15m high and 3m wide.

the paint will be required for 4 walls and ceiling.

let us find area of walls and ceiling.

therefore, the area of walls and ceiling is 1410 square meters.

given: cost for 10 litre of paint is $10 and 10 litre paint covers 25 square meter. therefore,

therefore, the total painting cost is $564.

tiles will be required for floor. let us find the area of floor.

given: 1m squared floor tiles costs $3. so,

therefore, the total tiles cost is $360.

now let us find combined total cost of tiles and paint.

therefore, the combined total cost of tiles and paint is $924.