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Mice21 [21]
3 years ago
14

When concentrations of formaldehyde in the air exceed 33 mu g divided by ft cubed μg/ft3 left parenthesis 1 mu g equals 1 microg

ram equals 10 superscript negative 6 baseline gram right parenthesis comma 1 μg=1 microgram=10−6 gram, a strong odor and irritation to the eyes often occurs. one square foot of hardwood plywood paneling can emit 3365 mu g μg of formaldehyde per day. a 5 ft by 6 ft sheet of paneling is attached to a wall in a room having floor dimensions of 10 ft by 10 ft and height of 6ft?
Mathematics
1 answer:
Harlamova29_29 [7]3 years ago
4 0
Let me reiterate the given. The limit of the concentration of the formaldehyde is 33 μg/ft³. This should be our basis. Now, it is given that each square foot of wood paneling emits 3,365 μg of formaldehyde. Since the wood paneling has dimensions of 5 ft by 6 ft, the area is equal to 30 ft². Therefore, the emitted amount of formaldehyde is:

Emitted formaldehyde = (3,365 μg/ft²)(30 ft²) = 100,950 μg

Next, we determine the volume of the room.
V = 10 ft × 10 ft × 6 ft = 600 ft³

Let's compare the ratio to our basis:
Ratio = 100,950 μg/600 ft³ = 168.25 μg/ft³

Since the limit is just 33 μg/ft³, it exceeded the given limit. Thus, with this condition, there would be strong odor and irritation of the eyes.
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quester [9]
I don't think you can give medals on this site, but ok

a way to simplify it is to solve for y
x+2y=8
minus x both sides
2y=8-x
divide both sides by 2
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(x,y)
just sub points in (sub x values for x and see if you get the coresponding y value)
example
point (8,0)
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y=4-x/2
y=4-8/2
y=4-4
y=0
yes


A. (8,0) works, (6,1) works, (4,2) works
B. (2,4) doesn't work, so this option is wrong
C. (0,8) doesn't work, so this option is wrong
D. (0,8) still , doesn't work, so this option is wrong

answer is A
8 0
3 years ago
Read 2 more answers
What is the equation of the line that passes
Afina-wow [57]

Answer:

Step-by-step explanation:

First, find the slope of the line for the two points.

Slope is Rise/Run.

For the two points (-8,-4) and (3,-10):

Rise (-10 - (-4)) = -6

Run (3 - ( -8)) = 11

The slope is Rise/Run or -(6/11)

The equation becomes y = -(6/11)x + b

Find b by entering either of the 2 points given.  I'll use (3,-10):

y = -(6/11)x + b

-10 = -(6/11)(3) + b

b = -10 + (6/11)(3)

b = -10 +(18/11)

b = -(110/11) + (18/11)

b = -(92/11)

The equation becomes y = -(6/11)x - (92/11)

See attached graph.

4 0
2 years ago
A jacket is on sale for 15% off the original price of $ 68.00. What is the sale price? Show your work!
Reptile [31]

57.8

Step-by-step explanation:

To get the answer we have to find 15% of 68 and then subtract it from 68$

15% its 0.15

0.15*68=10.2

68-10.2=57.8 - its the answer

8 0
2 years ago
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Ainat [17]

Answer:

7.86 is the answer

Step-by-step explanation:

30% of 24.50 is 7.35.

7.35+ 7% is 7.86

7.86 to the nearest cent is 7.86

8 0
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The diagonals of a square are 4 meters long. The side of this square is equal to the diagonal of a second square. Find the side
jok3333 [9.3K]
Check the picture below.

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