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How many air molecules are in a 11.5×12.0×10.0 ft room? Assume atmospheric pressure of 1.00 atm, a room temperature of 20.0 ∘C, and ideal behavior.

Volume conversion:There are 28.2 liters in one cubic foot.

11.5 X 12 X 10=1,380 cubic feet

1,380 X 28.2L X 2.652×10^22 molecules

=1.032 X 10^27 air molecules

Actually Melody you are correct.  I'm mistaken.

From Wiki

"In a number with a decimal point, trailing zeros, those to the right of the first non-zero digit, are significant."

so 5 is the correct answer.

because they help us with math

\(x^2 + 6x + 17 =0 \\ x^2 + 6x +9 -9 + 17 = 0\\ (x+3)^2+8=0 \\ (x+3)^2 = -8 \\ \mbox{and this clearly has no solution over the real numbers as any number squared is non-negative.}\)

\(\mbox{If we solve this over the complex numbers we get}\\ (x+3)^2=-8 = (-1)8 \\ (x+3) = \pm \sqrt{-1}\sqrt{8} = \pm \imath \sqrt{8} = \pm \imath 2\sqrt{2} \\ x = -3 \pm \imath 2\sqrt{2}\)

x^5=729

5log(x)=log(729)

log(x)=Log(729)/5=0.5725

x=10^.5725

x=3.7368, because 3.7368^5=729(rounded)

See http://web2.0calc.com/questions/math-problem-please-help-asap-thank-you#r1 for the answer.

Solve for w over the real numbers:
(3 w^2)/4+(2 w)/3-1/3 = 2

Multiply both sides by 4/3:
w^2+(8 w)/9-4/9 = 8/3

Add 4/9 to both sides:
w^2+(8 w)/9 = 28/9

Add 16/81 to both sides:
w^2+(8 w)/9+16/81 = 268/81

Write the left hand side as a square:
(w+4/9)^2 = 268/81

Take the square root of both sides:
w+4/9 = (2 sqrt(67))/9 or w+4/9 = -(2 sqrt(67))/9

Subtract 4/9 from both sides:
w = (2 sqrt(67))/9-4/9 or w+4/9 = -(2 sqrt(67))/9

Subtract 4/9 from both sides:
Answer: | 
| w = (2 sqrt(67))/9-4/9 or w = -4/9-(2 sqrt(67))/9

9+10=19

Prime factorization   = 2 x 5²

what are the factors of 50= 2 X 5 X 5

b) 5,682,056,276,389,920,904

a) Don't quite get what you want!!!!!!

you dont 

if you make 9.50$ per hour how much do you make in a month

It depends on HOW MANY hours you work, say per week.

If you work 8 hours per day, then that's 8 X 5=40 hours per week

$9.5 X 40=$380 per week

$380 X 52 weeks per year=$19,760 per year

$19,760 / 12=$1,646.67 monthly salary.

Speed=Distance travelled/Time.

How is 17-5/2+4=18.5

29/2 + 4=18.5

37/2=18.5

18.5=18.5

DO SOMETHING PRODUCTIVE WITH YOUR TIME.

Thank you

There is no such thing as "relativistic energy." The energy of an object AT REST is zero.

You divide the circumference by Pi and that gives you the diameter of the circle. Then divide by 2 to get the radius.

What is -6(8p+3) equal?

-48p - 18

If you were to set it to equal 0, then,

-48p - 18=0

-48p=18

p=18/-48

p=-3/8

1) 1000x + y = 1550

2) 1500x + y = 2250

Q: How do I get x and y?

y=1550 - 1000x

1500x + 1550 -1000x=2250

500x=2250-1550

500x=700

x=700/500

x=7/5=1 2/5, substitute in 1)

1000*7/5 + y=1550

y=1550-(7000)/5

y=1550- 1400

y=150

The mass is 4 kg and it is at rest

COPS WILL BE KNOCKING ON YOUR PARENTS DOOR ANY TIME NOW.