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rosijanka [135]
3 years ago
7

Plz guys help me with that questions plzplz guys help me

Mathematics
2 answers:
SVETLANKA909090 [29]3 years ago
7 0

Step-by-step explanation:

Issun Sengeki... Messatsu!

<u>In my opinion, I'd say A and C aren't functions, but B is a function.</u>

<u>The reason being is because every "X" value has a "Y" value. For those that don't have exactly 1 "Y" value aren't functions.</u>

  • A. has more "Y" values than "X" values, so that proves not to be a function.
  • B. Has "X" values that are exactly appointed to a "Y" value.
  • C. Has one "X" value that's missing, and a "Y" value that doesn't exist.

Hope this helps!

Quote:

<em>"The answer lies in the heart of battle."</em>

<em>- Ryu</em>

djyliett [7]3 years ago
5 0
B is the correct answers
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The rectangular bar is connected to the support bracket with a 10-mm-diameter pin. The bar width is w = 70 mm and the bar thickn
german

Answer:

P_max = 9.032 KN

Step-by-step explanation:

Given:

- Bar width and each side of bracket w = 70 mm

- Bar thickness and each side of bracket t = 20 mm

- Pin diameter d = 10 mm

- Average allowable bearing stress of (Bar and Bracket) T = 120 MPa

- Average allowable shear stress of pin S = 115 MPa

Find:

The maximum force P that the structure can support.

Solution:

- Bearing Stress in bar:

                                       T = P / A

                                       P = T*A

                                       P = (120) * (0.07*0.02)

                                       P = 168 KN

- Shear stress in pin:

                                        S = P / A

                                        P = S*A

                                        P = (115)*pi*(0.01)^2 / 4

                                        P = 9.032 KN

- Bearing Stress in each bracket:

                                       T = P / 2*A

                                       P = T*A*2

                                       P = 2*(120) * (0.07*0.02)

                                       P = 336 KN

- The maximum force P that this structure can support:

                                      P_max = min (168 , 9.032 , 336)

                                      P_max = 9.032 KN

3 0
3 years ago
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