2 years ago

3x+8, 5x-4, 6x+9 constitute the 1st three terms of an arithmetic sequence. find x

1 answer:

8090 [49]2 years ago

6 0

Answer is in the picture

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Jlenok [28]

The geometric mean of two numbers is the square root of their product:

$GM(a,b)=\sqrt{ab}$

So, if the product is 8, the geometric mean is $\sqrt{8}=2\sqrt{2}$

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2 years ago

netineya [11]

Answer:

Step-by-step explanation:

i said so

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3 years ago

Arturiano [62]

Answer: $3\dfrac{2}{6}\ h$

Step-by-step explanation:

Given

Rami practices his saxophone for $\frac{5}{6}$ hour on 4 day each week

So, for a week she practices around

$\Rightarrow \dfrac{5}{6}\times 4\\\\\Rightarrow \dfrac{20}{6}$

Converting it into mixed fraction

$\Rightarrow \dfrac{20}{6}=\dfrac{18+2}{6}\\\\\Rightarrow 3\dfrac{2}{6}\ h$

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2 years ago

Alex787 [66]

The Answer = (-7, 13)

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3 years ago

DedPeter [7]

Answer:

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Step-by-step explanation:

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2 years ago