Devi P.

Find the slope of the line that passes through the pair of points.   (-a+1, b-1) and (a+1, -b)

a. y-9=2x+9     b. y=4/7x   c. 4+y=1/3x+4    D.y=3/x            When i put 4/7 or 1/3  its over- i don't know how to enter it right

1 5/9÷(-2/3)+(-2 3/5)

i was working on my science homework when i got stuck on this question so i need help badly!!!!!!  #helpme!!!

I keep getting (0, 0)

How many ways are there to select 12 countries in the United Nations to serve on a council if 2 is selected from a block of 53, 1 are selected from a block of 64 and 9 are selected from the... more

 Sorry made mistake when I originally asked question: A. 3a-20 B. a-4 C. a+4 D. 3a+5

If there was an impurity in KHP, how would the concentration of the KHP solution differ from that calculated?   Would the calculated concentration of the KHP solution would be higher/lower/ or... more

solve using a matrix    x+2y-3z=-15 2x-3y+4z=18 -3+y+z=1

A survey is prepared to determine how much a selected portion of the population watches Television. A pilot survey indicates the mean time per week is 12 hours with a standard deviation of 3 hours.... more