V English
Rig
ery Algebra 1 B 2nd Semester
GO
Manny observed a Northern Gannet, a deep diving seabird, hovering at a height of 10 meters above the ocean
surface. The bird then dove into the water, diving to a depth of 16 meters before coming to the surface. The dive can
be modeled by a quadratic function,
y = x2 - 10.3x + 10, where x represents the time the dive lasted in seconds and y represents the height of the bird in
meters. Use the graphing calculator to graph the equation. After how many seconds did the bird surface? Round your
answer to the nearest tenth.
seconds
✓ Done
Intro

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.

b. hannah is playing with her cousin at