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3 years ago

9

Felicia wants to tell her Italian friend, Viviana, how cold it gets in the winter where Felicia lives—down to -17°F. Viviana has

no idea how cold that is unless Felicia converts it to degrees Celsius. How cold should Felicia tell her friend it gets?
27°C
-27°C
-88°C
8°C

1 answer:

nignag [31]3 years ago

8 0

1°F is equal to -17.2222°C, so -17°F times 17.2222°C would be approximately:
-27<span>°C</span>

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Step-by-step explanation:

Given

$OA = 2x + 9y$

$OB = 4x + 8y$

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Required

The relationship between AB, CD

Since AB is a straight line and O is the origin, then:

$AB = (c - a)x + (d - b)y$

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$OA = ax + by$ ====> $OA = 2x + 9y$

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$AB = (c - a)x + (d - b)y$

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$AB = 2x -y$

$CD = 4x - 2y$

Calculate the slope (m) of $AB\ and\ CD$

$m = \frac{Coefficient\ of\ y}{Coefficient\ of\ y}$

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$m_1 = \frac{-1}{2}$

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For CD

$m_2 = \frac{-2}{4}$

$m_2 = \frac{-1}{2}$

$m_2 = -\frac{1}{2}$

By comparison:

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