Show that the equations 2 cos x = 4 sec x - 5 tan x may be rearranged as 5 sin x = 4 - 2 cos^2 x

answer: just subtact the units and then add the non negative : happy to

step-by-step explanation:

step-by-step explanation:

compare

step-by-step explanation:

yes it represnts a functio, their are not 2 of the same numbers on the both sides

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.