How much money would Mrs.

1 answer:

zmey [24]3 years ago

4 0

Mrs. Carthill saved $120

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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:

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

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3 years ago

aivan3 [116]

18 it is this please look144÷8=18

6 0

3 years ago

erik [133]

The answer is <a is congruent to < d

because you already have <abe = <dbe

5 0

3 years ago

ElenaW [278]

I don't know what c you are talking about because there is no picture

4 0

3 years ago

drek231 [11]

A, C, And D

Could be these answers...

7 0

3 years ago