To test the effectiveness of a new growth hormone, a researcher selects a sample of n = 20 newborn rats. ten of the rats receive regular injections of the hormone and the other 10 serve as a no-treatment control group. except for the hormone injections, the two groups receivve exactly the same treatment. after 6 months, the researcher weighs each rat and computes the average weight for each group. if the average weight for the hormone group is greater than the average for the control group, can the researcher automatically conclude that the hormone has an effect? (hint: what other factor might explain why the two groups have different averages? )

idkit the do u know da way and ligma consumed ninja

step-by-step explanation:

an

y = 6x -3y -12

y +3y +12 = 6x

=> . x = { 2y / 3 +2 } this is equation of line in terms of x

=> . if line meets the x-axis the co-ordinates of meeting point would be ( x , 0 )

=> . x = 2 ( 0 ) / 3 + 2

=> . x = 2

so, the point is ( 2 , 0 )

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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.