, 02.12.2019 23:17 emmaraeschool

# Find the elapsed time 1.4: 15 p. m. to 10: 00 p. m.a.6 h 45 minutes b.5 h 45 minutes c.5 h 15 minutes 2.3: 45 a. m. to 12: 00 p. m.a.8 h 15 minutes b.9 h 15 minutes c.3 h 45 minutes 3.1: 15 p. m. to 8: 11 p. m.a.7 h 1 minuteb.7 h 59 minutes c.6 h 59 minutes 4.2: 37 a. m. to 3: 15 a. m.a.37 minutes b.47 minutes c.23 minutes 5.11: 59 a. m. to 1: 01 p. m.a.10 h 58 minutes b.1 h 2 minutes c.2 minutes ​

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Mathematics, 04.02.2019 20:31
Find the arc length parameter along the given curve from the point where tequals=0 by evaluating the integral ​s(t)equals=integral from 0 to t startabsolutevalue bold v left parenthesis tau right parenthesis endabsolutevalue d tau∫0tv(τ) dτ. then find the length of the indicated portion of the curve r​(t)equals=1010cosine tcost iplus+1010sine tsint jplus+88t k​, where 0less than or equals≤tless than or equals≤startfraction pi over 3 endfraction π 3.
Solve each quadratic equation by factoring and using the zero product property. $$x^2+6x+8=0$$