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umka2103 [35]
2 years ago
15

Help with the problem pls

Mathematics
1 answer:
zlopas [31]2 years ago
7 0

∆AQB is isosceles, so ∠QAB = ∠QBA.

The sum of vertex angles of ∆ABC is 180° so you have

... ∠QAB + ∠QCB + (∠QBC + ∠QBA) = 180°

Substituting what we know ...

... ∠QAB + 52° + (28° + ∠QAB) + 180°

... 2∠QAB = 100°

... ∠QAB = 50°

Because PQ is parallel to BC, ∠APQ = ∠ABC = 50° + 28°

... ∠APQ = 78°

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Answer:

(x+2)^3=x^3-6x^2+12x-8

Step-by-step explanation:

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Bobby has 20 cubic feet of toys! His parents
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Dale works at a mattress store, and makes a salary plus commission. He has a $500 weekly salary and makes a 5% commission for sa
Anni [7]

Answer:

1.  \( f\circ g(x)=0.05x-150

2. \( g\circ f(x)=0.05x-3000

3. The first one represents Dale's commission

Explanation:

1. The composition of the function

                                                             \( f\circ g(x)=f(g(x)) \)    

means that you first apply the function g(x) and then f(x) on the output of g(x).

That is:

  • f(x) = 0.05x
  • g(x) = x - 3000

       f(g(x)=0.05(x - 3000)

       f(g(x))=0.05x-150

2. The composition of the function

                                                             \( g\circ f(x)=g(f(x)) \)                                                                  

means that you first apply the function f(x) and then g(x) on the output of f(x).

That is:

      g(f(x))=((0.05x)-3000)=0.05x-3000

3. Which one represents Dale's commission

To calculate Dales's commision you must subtract $3,000 from the sales, to find the sales over $3000. That is: x - 3,000, which is the function g(x).

Therefore, you first use g(x).

Then, you must multiply the output of g(x) by 0.05 to find the 5% of the sales over $3,000. That is: 0.05(g((x)) = 0.05(x - 3000) = 0.05x - 150.

Therefore, the composition that represents Dale's commission is the first one:

  f(g(x)=0.05(x - 3000)

       f(g(x))=0.05x-150

4 0
3 years ago
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Which is equal to:

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Hope this helps! :)
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