100
which expression is equivalent to 7-2z-4 [z^3 - z^3+4z^2+11z+14/z+2]?
a. -4z^3+4z^2+6z+35
b. -4z^3+4z^2-10z-21
c. -18z-5
d. -18z+10

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the answers c

answer: .64

step-by-step explanation

set up the formula for standard deviation for this set of numbers, then simplify