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Tanzania [10]
3 years ago
12

Help me this question

Mathematics
1 answer:
lubasha [3.4K]3 years ago
8 0

Answer:

(a) 218.6 N

(b) 97.14 N

Step-by-step explanation:

When the system is in equilibrium, the net torque on the system is zero.

AC = 1.5 m, CD = 2.3 m, DB = 5 - 1.5 - 2.3 = 1.2 m

Let the centre of gravity of plank is at G.

AG = 2.5 m, CG = 2.5 - 1.5 = 1 m, GB = 2.5 m

(a) Let the reaction at C is R and at D is R'.

R + R' = 29 x 9.8 = 284.2 N ... (1)

Take the torque about C.

29 x 9.8 x CG = R' x GD

29 x 9.8 x 1 = R' x 1.3

R' = 218.6 N

(b) Take the torque about D.

6 x 9.8 x AD = R x CD

6 x 9.8 x (1.5 + 2.3) = R x 2.3

R = 97.14 N

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Maurinko [17]

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Answer 88=2^3  * 11


8 0
3 years ago
How do I solve for X?
katen-ka-za [31]

Answer:

x = -9

Step-by-step explanation:

The top angle would be 90 degrees due to the square.

The angles of a triangle add up to 180 degrees.

Set up the equation:

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Subtract 189 from both sides:

x = -9

Now, if you need to solve for the angle, just plug x in:

-9 + 54 = 45 degrees

(In your case it is just looking for x so it would be x = -9)

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3 years ago
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A function is defined as every x value only has one y value. Since the second row says that when x is 5, y is 6. This means that p = 6

Step-by-step explanation:

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3 years ago
Adele opens an account with $100 and deposits $45 a month. Kent opens an account with $70 and also deposits $45 a month. Will th
Harman [31]

answer:

Adele and Kent will not have the same amount in their account at the same time. because they both are going at the same rate depositing 45$a month Adele is ahead by 30$ because she deposited 100 instead of 70 in the beginning. They will be at the same point if Kent deposits more or Adele deposit less.

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3 years ago
Use the net to find the lateral area of the cylinder.
ioda
The lateral area is the area around, the bases are the circles so the lateral area is the area of the rectangle

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4 years ago
Read 2 more answers
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