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s2008m [1.1K]
3 years ago
5

5(9 + d) - 6 PLSS PLSSSSSSSSSSSSSSSSSSS

Mathematics
2 answers:
ratelena [41]3 years ago
7 0

Answer:

39+5d

Step-by-step explanation:

distribute 5 to (9+d)

then you will have 45+5d-6

then combine like terms and you get 39+5d

alex41 [277]3 years ago
6 0
The answer is 5d+39!!!!
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\dfrac{1}{(b-c)},\dfrac{1}{(c-a)} ,\dfrac{1}{(a-b)} are\ in\ AP

Step-by-step explanation:

Given that (b-c)^2, (c-a)^2 , (a-b)^2 are in AP

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From given as we know if p , q, r are in AP then 2q= p+r.

2(c-a)^2= (b-c)^2+(a-b)^2\\\\\Rightarrow 2(c^2+a^2-2ac)=b^2+c^2-2bc+a^2+b^2-2ab\\\\\Rightarrow 2c^2+2a^2-4ac= 2b^2+c^2+a^2 -2bc-2ab\\\\\Rightarrow a^2+c^2-2b^2-4ac= -2bc-2ab\\\\\Rightarrow a^2-2b^2+c^2= 4ac-2bc-2ab

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Which is the result of AP

.

Hence proved

6 0
3 years ago
Given:3x&lt;9 choose the solution set
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You would divide both sides by 3 and would be left with x<3
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