Hi! i need help with these questions. Question 23 cut off but it says

23. what is the missing fact? if no facts are missing, find the area of the figure.

A- 252 sq ft
B- length of short base
C- angle in bottom right corner
D- 168 sq ft

step-by-step explanation:

this is not possible to solve with the info given.   you need at least an one angle somewhere.

not sure but it may be b, as i said i'm not sure.

hello from mrbilldoesmath!

answer:

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

discussion:

the trick is to recognize that 343 = 7^3 and 216 = 6^3 and, in general,

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

in our case

343x^3+216y^3   =   (7x)^3 + (6y)^3

so take a = 7x and b = 6y in the above equation to get the answer.

you,

mrb

4

step-by-step explanation: