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3 years ago

Help please i need to study for test

Mathematics

1 answer:

Ratling [72]3 years ago

4 0

So every value of x increases by 1, so the run would be 1

Every value of y decreases by 3, so the rise would be -3

The slope is rise/run = -3/1 = -3

The y intercept is 7

Slope-intercept equation is y= -3x+7

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Answer:

Step-by-step explanation:

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3 years ago

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Answer:

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3 years ago

The elevation E, in meters, above sea level at which the boiling point of a certain liquid is t degrees Celsius is given by the

Anna007 [38]

Answer:

$E(119.5)= 730m$

Step-by-step explanation:

Given

$E(t)= 1200(120-t)+520(120-t)^2$

Required

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Simply substitute 119.5 for t

$E(119.5)= 1200(120-119.5)+520(120-119.5)^2$

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$E(119.5)= 1200(0.5)+520(0.5)^2$

Solve 0.5²

$E(119.5)= 1200 * 0.5+520*0.25$

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Hence;

$E(119.5)= 730m$

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