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dmitriy555 [2]
3 years ago
12

(_9 over 14)×(8over21)

Mathematics
1 answer:
GuDViN [60]3 years ago
4 0

1st, 9/14 = .643 and 8/21 = .381.

2nd, 9/14 x 8/21 = .643 x .381

3rd multiply and solve .643 x .381 =

4th answer is 0.245

Hope I helped


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Find the value of a and b if root3-1/root3+1+ root3+1/root3-1=a+root3 b​
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Answer:

a=4 and b = 0

Step-by-step explanation:

Given : \dfrac{\sqrt 3 -1}{\sqrt 3+1}+\dfrac{\sqrt 3+1}{\sqrt 3-1}=a+\sqrt 3 b

To find, The value of a and b

Solution,

Solving LHS of the given equation,

\dfrac{(\sqrt 3-1)^2+(\sqrt3+1)^2}{(\sqrt 3+1)(\sqrt 3-1)}=a+\sqrt 3 b

Since,

(a-b)^2=a^2+b^2-2ab\\\\(a+b)^2=a^2+b^2+2ab\\\\(a-b)(a+b)=a^2+b^2

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or

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4 0
3 years ago
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Lady_Fox [76]
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5 0
3 years ago
PLEASE I REALLY NEED HELP!
vagabundo [1.1K]

Answer:

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Step-by-step explanation:

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2 years ago
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bagirrra123 [75]
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4 0
3 years ago
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