The system of equations is given:
1.2x + 3y − 5z + 4.2w + v = 0
6x = 5y + 2w
3y + 4.5z − 6w + 2v = 10
9x − y + z + 2v = −3
−4x + 2y − w + 3v = 1
a. represent this system using a matrix equation.
b. use technology to solve the system. show your solution process, and round your entries to the tenths place.

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step-by-step explanation:

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

what are you trying to solve here

step-by-step explanation: