(1 point) let x, y, z be (non-zero) vectors and suppose w = 3x + 2y – z. if z = -3x – 2y, then w = 6 x + using the calculation above, mark the statements below that must be true. a. span(w, x, y) = span(w, y, z) b. span(w, z) = span(w, x) c. span(w, x, z) = span(x, y, z) d. span(w, x) = span(y, z) e. span(x, y) = span(w, z)

step-by-step explanation:

. your answer will contain x - and y -terms. (1 point) x ( ¿¿ 2 − 7 ) 2 +( y 2 − 9 ) 2 √ ¿ 12. what is the distance from the directrix (the crocodile river) to the point ( x , y )? write this equation. your answer will contain a y -term.

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then i might be able to .

-12 > a

step-by-step explanation:

-11 > 1 + a

subtract 1 from each side

-11-1 > 1-1+a

-12 > a

8+10

step-by-step explanation:

you multiply 4 by 2 and 5 by 2