16. Determine the value of k for each equation so that the given x-value is a solution. a. x3 + 2x2 x² – 9x + k = 0; x = 3 b. x3 - 3x2 + kx - 12 = 0; x = -4

step-by-step explanation:

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europa2433

30 miles

step-by-step explanation:

we know that 60 seconds equals 1 minute and 60 minutes 1 hour

44 ft       60 sec     60 min     158400   ft

  *   *   =

1 sec       1 min       1 hour         hour

we know that there are 5280 ft per mile

158400   ft       1 mile         30 miles

  *   =

1   hour               5280 ft     1 hour

so in 1 hour   it can travel 30 miles

x=6 and x=3

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