Jose has scored 562 points on his math test so far this semester to get an a for the semester he must score at least 650 points right and solve the inequality to find the minimum number of points he must score on the remaining test in order to get an a

b

step-by-step explanation:

47 - 90 = 43

43 - 180 = x

x = 137

this may not be at all, but i use the same website you're using for school, and if i'm stuck doing one of these i try to look for it on the section.

hello from mrbilldoesmath!

answer:   (7x + 6y) ( 49x^2 - 42xy + 36y^2)

discussion:

in general, the factorization of a^3 + b^3 is

a^3 + b^ 3 = (a + b) ( a^2 - ab + b^2)

in our case note that 343 = 7^3 and 216 = 6^3 so the equation becomes:

343x^3 + 216y^3 = (7x)^3 + (6y)^3

if you think of a (above) as 7x and b as 6y the factorization becomes

343x^3 + 216y^3 =

((7x + 6y) (   (7x)^2 - 7x*6y + (6y)^2)   =

(7x + 6y) ( 49x^2 - 42xy + 36y^2)

you,

mrb

(a + b) (a^2 - a b + b^2)