Solve the system of linear equations and check any solutions algebraically. (if there is no solution, enter no solution. if the system is dependent, express x, y, and z in terms of the parameter

a) x + 2y − 7z = −8
b) 2x + y + z = 23
c) 3x + 9 y − 36 z = −63

No Solution

Step-by-step explanation: the explanation can be found in the attached picture

r(0,90)(x,y) . t(-5,0)

last option

step-by-step explanation:

∆def to ∆d"e"f"

- rotate 90 counterclockwise degrees

- then translated 5 to the left (x --> x - 5)

answer is the last option

f(2x−x2)=−3x2+6x−1

step-by-step explanation:

set up the composite function and evaluate.

f(2x−x2)=−3x2+6x−1