PLEASE HELP Choose the graph that matches the following system of equations:

4x + y = −1
3x + 2y = 8

Picture of coordinate plane with line y equals negative 4x minus 1 and line y equals minus 3 over 2 times x plus 4. They intersect at negative 2, 7.
Picture of coordinate plane with line y equals 4x minus 1 and line y equals negative 3x plus 8. They intersect at 1.29, 4.14.
Picture of coordinate plane with line y equals negative 4x minus 1 and line y equals 3 halves x plus 8. They intersect at negative 1.64, 5.55.
Picture of coordinate plane with line y equals 4x minus 1 and line y equals negative 3x plus 4. They intersect at 0.71, 1.86.

the answer is c. hope this !

step-by-step explanation:

what level of math? also i don't need to be paid if i can you.

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

answer: cos [   arcsin (3/5) - arccos (1/2) ] =

step-by-step explanation: × = 3/5 = 0.6--> x = 36.87 and x = 180 - 36.87 = 143.13 deg

cos y = 1/2 --> y = +- 60 deg a. cos (x - y) = cos (143.13 - 60) = cos 83,13  

=

0.12

b. cos (36.87 - 60) = cos (-23.23) = 0.92