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skad [1K]
4 years ago
7

Please help me with this question and explain thankss

Mathematics
1 answer:
butalik [34]4 years ago
6 0
∠BDC = ∠BEC = 40°
∠ADB = (arc AB)/2 = 44°/2 = 22°
∠ADC = ∠ADB +∠BDC
  = 22° +40° = 62°
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Randall, Kira and Sean have 100 baseball cards altogether. Randall has twice as many as Kira and 10 more than Sean. How many bas
TEA [102]

Kira has 22 cards, Randall has 44 cards, and Sean has 34 cards

<u>Solution:</u>

Given that, Randall, Kira and Sean have 100 baseball cards altogether.

Randall has twice as many as Kira and 10 more than Sean.  

We have to find how many baseball cards does each person have?

Now, let the number of cards with Kira be "n", then number of cards with Randall will be "2n"

As Randall has "2n" cards, Sean will have 2n – 10

Now, total cards = 100  

<em>Randall cards + Kira cards + Sean cards = 100  </em>

2n + n + 2n – 10 = 100  

5n = 100 + 10  

5n = 110  

n = 22

So, kira has 22 cards, then, randall will have 2(22) = 44 cards and cards with sean = 44 – 10 = 34 cards.

Hence, kira has 22 cards, randall has 44 cards, and sean has 34 cards.

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3 years ago
Which ordered pair in the form (a, b) is a solution of this equation?<br><br> 7a-5b=28
jeka57 [31]

hint NOT answer-

28+5b=7a

5 0
3 years ago
Identify the domain and range of each relation. Use a mapping diagram to determine whether the relation a function.
Xelga [282]

Answer:

Domains- 6, 5, 1, 7

Ranges- -7, -8, 4, 5

6 0
3 years ago
Solve the equation 2sin x cos x = cos x, for 0° &lt; x≤ 90°​
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Answer:

2sinx.Cosx=cosx

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0=0

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