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vovikov84 [41]
4 years ago
5

8

Mathematics
1 answer:
valina [46]4 years ago
5 0
The answer is C I just did that question
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The coeffiecient for 6m + 7 is<br> m
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Step-by-step explanation:

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3 years ago
6(8-x)(x+4)=0 what’s the solution set?
Travka [436]

Answer:

x_{1} = -4\\\\x_{2} = 8

Step-by-step explanation:

6(8-x)(x+4)=0

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48x +192 -6x^2 -24x = 0

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using quadratic formula:

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4 years ago
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4 0
3 years ago
Please help me. (20 points)
alexandr402 [8]

Hello from MrBillDoesMath!

Answer:

75

Discussion:


A plane triangle has 180 degrees. Using this in the diagram gives  

x + 81 + angle BAC = 180             (***)

(The diagram is a bit fuzzy but I think the above numbers are accurate)

The diagram also shows that  (156 + angle BAC )= 180 as a straight line has 180 degrees. So

angle BAC = 180 - 156 = 24

Substituting this in (***) above gives

x + 81 + 24 = 180 =>

x + 105 = 180   =>               (as 81 + 24 = 105)

x = 180  107 = 75


Check: Does

x + 81 + angle BAC = 180   ?

75 + 81 + 24 = 180.  Yes




Thank you,

MrB

7 0
3 years ago
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