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Contact [7]
3 years ago
15

D=rt when r=35 mi/h and t= 2 h

Mathematics
1 answer:
Fynjy0 [20]3 years ago
3 0

Answer:distance equals rate and time rate equals 35 mi/h and time equals 2 hours

Step-by-step explanation:

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|3k-2|=2|k+2l
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ladessa [460]

Answer:

y=-\frac{7}{18}x^2+\frac{41}{18}x+\frac{64}{9}

Step-by-step explanation:

We need to write a quadratic equation so we can use standard quadratic equation:

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Plug the given points to get three equations.

for (7,4), we plug x=7 and y=4

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4=49a+7b+c ...(i)

similarly using other two points, we get:

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Now we solve those three equations by any method like substitution, or matrices or by any method and get:

a=-\frac{7}{18},\ b=\frac{41}{18},\ c=\frac{64}{9}

Now plug these values into y=ax^2+bx+c, we get final equation as:

y=-\frac{7}{18}x^2+\frac{41}{18}x+\frac{64}{9}

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None those two don’t correlate so I’m pretty sure it’s none
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