Assume a population of weights is normally distributed. The average weight for the population is 154lbs. The standard deviation for the population is 12 lbs.
What proportion of the population weighs more than 142 lbs and less than 160 lbs? (Please write
your answer in decimal to the nearest ten-thousandth.)

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.

20 only answer if 100% sure most high school-aged teens are very active. a. true b. false

Solve each quadratic equation by factoring and using the zero product property. [tex]x^2+6x+8=0[/tex]