2 years ago

Scaled copies question 3 and 4

Mathematics

1 answer:

mr Goodwill [35]2 years ago

6 0

What are you asking ?

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Write the equation of the line in slope intercept form that goes through the point (2,3) and has a slope of -1/2.

elena55 [62]

The answer is y =-1/2x + 3

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3 years ago

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BigorU [14]

Answer:

Step-by-step explanation:

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2 years ago

An airline runs a commuter flight between Portland, Oregon, and Seattle, Washington, which are 145 miles apart. An increase of 2

pychu [463]

The speed of the airplane is the ratio of the distance to the time

The initial average speed of the airplane is approximately 110.8 mph

Reason:

Given parameters are;

The distance between Portland Oregon and Seattle Washington = 145 miles

The decrease in travel time when the speed is increase by 20 mph = minutes

The initial speed of the airplane, v = Required;

Solution;

$t = \dfrac{145}{v}$

$t - \dfrac{12}{60} = \dfrac{145}{v + 20}$

Therefore;

$\dfrac{145}{v} - \dfrac{12}{60} = \dfrac{145}{v + 20}$

Which gives;

$\dfrac{145}{v + 20} - \dfrac{145}{v} + \dfrac{12}{60} = 0$

Therefore

0.2·v² + 4·v - 2,900 = 0

v ≈ ±110.8 mph

The initial average speed of the airplane, v≈ ± 110.8 mph

Learn more here:

brainly.com/question/11365874

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2 years ago

Solve for p in the literal equation 4p + 7r = 4.<br> P =

kiruha [24]

Answer:

p= 1-7r/4

hope this helps

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3 years ago

The half life of radium is 1690 years. If 10 grams are present now, how much will be present in 50 years?

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33.8 grams hope this helps

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