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algol [13]
3 years ago
15

A train left William's town at 7:35 P.M. The train traveled for 1 hour and 30 minutes to Richmond. Then it traveled 3 hours and

55 minutes to Kingwood. What time did the train arrive in Kingwood? HELP!! :(
Mathematics
1 answer:
MAVERICK [17]3 years ago
4 0

Answer:

12:55 A.M

Step-by-step explanation:

1 hour and 30 minutes plus 3 hours and 55 minutes equals 5 hours and 25 minutes.

The train left at 7:35 P.M. Now that we have all of the necessary info, we put it together.

12:55 A.M.

Using time rules and whatever, we add the 5 hours and 25 minutes to 7:35. Which gives us the answer right above, 12:55 A.M. is the time that they will arrive at Kingwood.

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Over each subinterval, we interpolate f(x)=\sqrt{1+x^8} with the quadratic polynomial,

p_i(x)=f(\ell_i)\dfrac{(x-m_i)(x-r_i)}{(\ell_i-m_i)(\ell_i-r_i)}+f(m_i)\dfrac{(x-\ell_i)(x-r_i)}{(m_i-\ell_i)(m_i-r_i)}+f(r_i)\dfrac{(x-\ell_i)(x-m_i)}{(r_i-\ell_i)(r_i-m_i)}

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Compare this to actual value of the integral, which is closer to 1967.

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