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Y_Kistochka [10]

3 years ago

6

sonya has a bag with 4 green marbles, 7 orange marbles and 9 blue marbles. She randomly selects one marble, does not replace it

and then selects another marble. What is the probability that sonya will pick two blue marbles?

1 answer:

wel3 years ago

8 0

What’s the answer choices?

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fenix001 [56]

Move all the logarithms on the left hand side, and all the constants on the other:

$\log_2(x-2) - \log_2(x) = -1$

Use the rule of logarithms

$\log_a(b) - \log_a(c) = \log_a\left(\dfrac{b}{c}\right)$

To rewrite the equation as

$\log_2\left(\dfrac{x-2}{x}\right) = -1$

Evaluate 2 to the power of each side:

$\dfrac{x-2}{x} = 2^{-1} = \dfrac{1}{2}$

Multiply both sides by 2x:

$2(x-2) = x \iff 2x-4 = x \iff x = 4$

6 0

4 years ago

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A rectangle has two side lengths of 8 inches and two side lengths of 10 inches. What is the perimeter of the rectangle?

Ronch [10]

The perimeter is 36
8+8=16
10+10=20
20+16=36

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4 years ago

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Find the Difference 9,052-7,391

netineya [11]

The answer for this problem is 1661

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I hope this helps you

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