Plug in -6 for a and -5 for b
3(-6)^2 - 4(-5)
3(36)+20
108+20
=120
Use the proportion inches per miles.
.5 in / 2 miles = 2.75 in / d miles
Hope this helps :)
So hmm the food C = 6p + 3q and the food D = 4.5p + 1.5q
now, if we check how much is the ratios of C/D for each component, then, mixture M = 144p + 60q, must contain the same ratio for each "p" and "q" component
so, if we divide the 144p by 4+3, or 7 even pieces, 4 must belong to food C and 3 to food D, retaining the ratio of 4/3
and we do the same for 60q, we divide it in 2+1 or 3 even pieces, but that one is very clear, 2 must belong to food C and 1 to food D, 60/3 is clear ends up with a ratio of 40 and 20
now the "p" part... ends up as
that's what I see it, as the ratio of 4/3 and 2/1 being retained in the mixture M
It Will Be option A ok 2r -6'²
Yes because you can multiply each sides number by three and it equals the larger figures side numbers.