How to solve this problem step by step. make brainliest answer if its done.

D is halfway between A and B

so the coordinates of D are (2,2)

E is halfway between A and C so the coordinates of E are (-1,1)

now you need to find the gradient/slope of DE and BC using the formula:

SUB IN COORDINATES OF D AND E

therefore the gradient of DE is 1/3.

SUB IN COORDINATES OF B AND C

therefore the gradient of BC is -2/-6 which simplifies to 1/3.

10a^3+277a^2-132a-792

step-by-step explanation:

(2a+11)(5a-12)(foil)

=10a^2-24a+55a-132 =10a^2+31a-132

(10a^2+31a-132)(a+6)

=10a^3+60a^2+31a^2+186a^2-132a-792 =10a^3+277a^2-132a-792

i hope this is what you are looking for : )

anser is a

step-by-step explanation:

negitive slope