3 years ago

Which equation represents the total cost, y, for x hours of student ski lessons?

Mathematics

1 answer:

Mice21 [21]3 years ago

5 0

SUP THANKS FOR THE POINTS

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<img src="https://tex.z-dn.net/?f=1%20%2B%20%20log_%7B2%7D%28x%20-%202%29%20%20%3D%20%20%20log_%7B2%7Dx" id="TexFormula1" title=

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

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If x is equal to –2, then find the value of 3x² + 5x

attashe74 [19]

Answer:

Step-by-step explanation:

3*(-2)to power of 2 + 5*-2

= 3*4 + 5*-2

= 12 + -10 = 2

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2 years ago

Hello! I can’t tell if 3 is a dilation or not <br><br> Please help!

Rzqust [24]

Answer:

This is not a dilation

Step-by-step explanation:

Dilation (usually represented by is one of the basic operations in mathematical morphology.

Please mark me brainliest!

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3 years ago

Hi lohith my ff play my iD I'd is opBOYS123123

Ganezh [65]

Answer:

Step-by-step explanation:

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2 years ago

4.07065 in words or written form?

MAVERICK [17]

Four and seven thousand sixty-five hundred thousandths, I believe

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3 years ago

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