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Alexandra [31]
3 years ago
10

What is the unit rate of 286 miles in 5 in a half hours?

Mathematics
2 answers:
Kipish [7]3 years ago
4 0
The answer is:  " 52 mi / h " ;  or, write as:  " 52 m.p.h. "  .
__________________________________________________
Explanation:  
__________________________________________________
Given:  
__________________________________________________
  "286 mi per 5.5 h " ;  or, "(286 mi / 5.5 h)" ;

  → Convert to "miles per (unit hour, or single hour)" .
___________________________________________________________
So;  286 mi / 5.5 h = (286/5.5) mi / h = "52 mi / h" ; or, write as: "52 m.p.h." .
___________________________________________________________
konstantin123 [22]3 years ago
3 0
286/5.5=52 miles per hour<span />
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<u>Given</u><u> </u><u>:</u><u>-</u>

  • The roots of the function are 5 and -3 .

<u>To</u><u> </u><u>Find</u><u> </u><u>:</u><u>-</u>

  • The Quadratic function .

<u>Answer</u><u> </u><u>:</u><u>-</u>

The roots of the function are 5 and -3 . In general we can write the Quadratic function with roots π and ∆ as ,

\sf\longrightarrow f(x) = ( x - π )(x-∆)

So on using this we have ,

\sf\longrightarrow f(x) = ( x -5)( x -(-3))

\sf\longrightarrow f(x) = (x-5)(x+3)

\sf\longrightarrow f(x) = x(x-5)+3(x-5)

\sf\longrightarrow f(x) = x² -5x +3x -15

\sf\longrightarrow f(x) = x² -2x -15

<u>Hence </u><u>the</u><u> required</u><u> </u><u>answer</u><u> </u><u>is </u><u>x²</u><u> </u><u>-2x </u><u>-</u><u>1</u><u>5</u><u>.</u>

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