Which equation represents a circle with a center at (-4, 9) and a diameter of 10 units?
o (x – 9)2 + (y + 4)2 = 25
o (x + 4)2 + (y – 9)2 = 25
o (x – 9)2 + (y + 4)2 = 100
o (x + 4)2 + (y – 9)2 = 100

(x + 4)2 + (y - 9)2 = 25

Step-by-step explanation:

The second option represents a circle's equation.

Good luck!

Intelligent Muslim,

From Uzbekistan.

the mistake in the pattern is that :

b. the decimal point was moved one too many place values each time

the correct pattern could be made by :

b. moving the decimal point to the right the same numbers of place values as the exponents

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.