Ahuman body that is performing light work generates about 650 btus of body heat per hour. if a storage room that is 20' x 25' x 10' is being organized by four people how many btus per cubic foot do they produce at four hours

2.72 BTU's / cubic foot.

Step-by-step explanation:

Volume of the storage room = 20*25*10 = 5000 ft^3.

4 people working generates about 4*850 = 3400 BTU's per hour which  equals 4*3400 = 13,600 BTU's in 4 hours.

So the BTU's per cubic foot  = 13,600 / 5000

= 2.72  (answer).

x =±sqrt(1/3)

step-by-step explanation:

x+4/6x=1/x

multiply each side by 6x to get rid of the fractions

6x*(x+4/6x)=1/x*6x

distribute

6x^2 +4 = 6

subtract 4 from each side

6x^2 +4-4 = 6-4

6x^2 =2

divide by 6

6x^2/6 = 2/6

x^2 = 1/3

take the square root of each side

sqrt(x^2) = ±sqrt(1/3)

x =±sqrt(1/3)

step-by-step explanation:

de-gf

hj=3x+20

ji=15x-64