The magnitude of an earthquake is given by the Richter scale, whose formula is R = log where I is the intensity of the earthquake and Io is the intensity of a 16
minimal earthquake and used for comparison purposes. The 1906 city A earthquake had a magnitude of 8.07, and the 1964 city B earthquake had a magnitude of
6.8. Compare the intensities of the two earthquakes.
The 1906 city A earthquake was approximately times more intense than the 1964 city B earthquake.
(Type an integer or decimal rounded to the nearest tenth as needed.)

in simplified version   it would be x ≤-4

step-by-step explanation:

multiply each term in x ≤-4 by -1

-2 is the right

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.