W / -4 < 4 multiply both sides by -4 [and reverse the inequality sign ]
W > -16
R / -4 > 2 multiply both sides by -4
R > -8
3x2 = 20 – 7x rearrange as
3x2 + 7x - 20 = 0
And using the form ....... ax2 + bx + c = 0
a = 3
b= 7
c = -20
18 to 24 = 3 / 4
14:42 = 1 / 3
15 cents to 18 = 5/6
20 inches to 2 feet = 20 inches to 24 inches = 5/6
3 weeks to 10 days = 21 days to 10 days = 21/10
I think this question was answered yesterday, here.........http://web2.0calc.com/questions/compare-the-january-2014
No numbers are posted to work with........????
All real numbers.....we can put any value in for "x"
Sorry....my browser can't access these files......????
CierDreaj.....if the funnel is 20 cm wide.....its radius would be 1/2 of that = 10cm
So....the volume of the funnel = (1/2)pi (r^2) h = (1/2)pi (10^2)(25) = [2500/3] pi cm^3
10 = |-8q| + 1 subtract 1 from each side
9 = l -8q l and we have two equations here
-8q = 9 -8q = - 9
divide both sides by -8
q = -9/8 and q = 9/8
