0, -1/10, 2/10, -3/10, 4/10, -5/10, 6/10, -7/10, 8/10, -9/10, 10/10, -11/10
a + 4 = 10(a + 4) - 4 = 10 - 4a = 6
-4-x = 10 -x = 10+4 -x = 14 x = -14
4(x- 8) + 10 = -10
Answer is 6 here, x - 10 = -4 so, x = -4+10 x = 6
about 1.2 pounds
Im building a bench. Im using 2"x10" pine. Is 5' between braces strong enough? It depends on how many boards your are putting on your bench. To give you an idea, I ran through some quick numbers for you. @ 5'. one 2" x 10" x ?? pine board assuming a 400lb load (2-3 people) you will have deflection of .42" PER board which is fine. Less than 1/2 inch. @ 4' your deflection is reduced to .22" PER board which is even better. You really shouldn't have a problem at 5', unless a 400lb guy jumps on the middle of your bench. The maximum weight it will take in the middle before fracture is 688 lb @ 5'/brace and 860 @ 4'...and keep in mind this is per board so if you have two....you should be fine. This is as long as it is standard pine. .
The weight depends on the type of wood. Pine weighs less than oak.
Once it's kiln dried, yellow pine is one of the lighter woods. I wouldn,t think a 4x12x10' should weigh much more than 60 lbs. Maybe not that much. Sorry, but the above answer is incorrect. Actually the weight of dried southern yellow pine is around 3 lbs per board foot. A 4x12x10' contains 40 board feet and therefore weighs approximately 120 lbs. The above answer is conservative. The exact answer is yellow pine has a density of roughly 40lbs/ft^3. A 4x12 is actually 3.5"x11.25" = 39.38in^2. Therefore for a 10ft section: (40lb/ft^3) x ((39.38in^2)/144) x (10') = 109.4 lbs.
It would depend on the material the board is made from. 1 x 18 pine boards are used for wide shelves and can support a lot of weight, but will sag at lengths of 4 feet or more unless they are center braced.
if youre taking about weight no
Cubic Feet = Area (ft) X Height (ft) / 4
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Martin Kane Private Eye - 1949 Trouble on Board 4-10 was released on: USA: 1952
A 2 by 4 (lumber) will have a weight based on the density of the wood. Pine, fir, redwood, treated or untreated will have different densities.
4 to 6 is the pH of pine trees
n you are under weight because am 4 stone and am 9 nearly 10