If A(x,1),B(-3,7), C(-5,9), and D(5,4) find the value of x so that AB||CD

Awater tank holds 18000 gallons. how long will it take for the water level to reach 6000 gallons if the water is used at anaverage rate of 450 gallons per day

Which word in the sentence below is an interrogative pronoun? who is picking us up from school? whousisfrom

Do one of the following, as appropriate: (a) find the critical value z subscript alpha divided by 2 , (b) find the critical value t subscript alpha divided by 2 . 99%; nequals 17; sigma is unknown; population appears to be normally distributed.