Let a=⎡⎣⎢−6396−21⎤⎦⎥. we want to determine if the system ax=b has a solution for every b∈r3. select the best answer. a. there is a solution for every b∈r3 but we need to row reduce a to show this. b. there is a solution for every b∈r3 since 2< 3 c. there is not a solution for every b∈r3 since 2< 3. d. there is a not solution for every b∈r3 but we need to row reduce a to show this. e. we cannot tell if there is a solution for every b∈r3. solution:

d) by the cross product property, ab^2 = bc multiplied by ad

step-by-step explanation:

we are given

in the given triangle abc

angle a is 90° and segment ad is perpendicular to segment bc

we can see that

triangle(abc) and triangle(abd) are similar because they have common side and same angle (90 degree)

so, triangles(abc) and abd are similar

since, they are similar

so, the ratio of their sides must be equal

we get

now, we can cross multiply

and we get

so, this could be step to prove it

you have orange juice on wednesday. (idk why this is the answer)

step-by-step explanation:

really really sorry if i'm

-12 -5(x + 4) = 3x

-12 - 5x - 20 = 3x

-12 - 20 - 5x = 3x

-32 - 5x = 3x

    + 5x   + 5x

-32 = 8x

8         8

- 4= x