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aleksandr82 [10.1K]
3 years ago
12

If an airplane's speed is 850 miles/ hours what is its speed in meters/ seconds? (1 mile = 1609.34 meters) A. 37,998 m/s B.1360m

/s C.380m/s D.528 m/s
I will ad you as a brainy list

Mathematics
2 answers:
Vitek1552 [10]3 years ago
5 0
Hope this helps you!!!

Vesnalui [34]3 years ago
4 0

Answer:

Option C, 380 m/s

Step-by-step explanation:

The speed of an airplane is 850 miles per hour.

We have to calculate the speed in meters per second.

1 mile = 1609.34 meters

850 miles = 1609.34 × 850 = 136,793,9 meters

1 hour = 3600 seconds

Therefore Speed per second = \frac{136,793,9}{3600}

                                                 = 379.98 ≈ 380 m/s

Option C, 380 meter per second

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Answer:

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Step-by-step explanation:

Hi there!

We are given the points (-1, -3) and (-2, -5). We need to find the slope, equation of the line, and the y intercept of the line

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We have everything we need for the formula, but let's label the values of the points to avoid any confusion

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Now substitute into the formula (remember: the formula has SUBTRACTION):

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Now let's find the equation of the line

The question asks for it to be in slope-intercept form, which is y=mx+b, where m is the slope and b is the y intercept

We calculated the slope from earlier, so let's substitute that into the equation

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The equation will pass through both (-1, -3) and (-2, -5) so we can use either one of them to solve for b (doesn't matter which one)

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Hey there!

\\

  • Answer:

\green{\boxed{\red{\bold{\sf{y = \dfrac{7}{6}x - 3}}}}}

\\

  • Explanation:

To find the equation of a line, we first have to determine its slope knowing that parallel lines have the same slope.

Let the line that we are trying to determine its equation be \: \sf{d_1} \: and the line that is parallel to \: \sf{d_1} \: be \: \sf{d_2} \: .

\sf{d_2} \: passes through the points (9 , 2) and (3 , -5) which means that we can find its slope using the slope formula:

\sf{m = \dfrac{\Delta y}{\Delta x} = \dfrac{\green{y_2} - \orange{y_1}}{\red{x_2} - \blue{x_1 }}}

\\

⇒Subtitute the values :

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\implies \sf{m = \dfrac{\Delta y}{\Delta x} = \dfrac{\green{-5} - \orange{2}}{\red{ \: \: 3} - \blue{9 }} = \dfrac{ - 7}{ - 6} = \boxed{ \bold{\dfrac{7}{6} }}}

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Assuming that we want to get the equation in Slope-Intercept Form, let's substitute m = 7/6:

Slope-Intercept Form:

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\implies \sf{y = \bold{\dfrac{7}{6}}x + b} \\

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Therefore, the equation of the line \: \bold{d_1} \: is \green{\boxed{\red{\bold{\sf{y = \dfrac{7}{6}x - 3}}}}}

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