Let bold upper a equals start 3 by 3 matrix 1st row 1st column 1 2nd column negative 2 3rd column negative 2 2nd row 1st column 10 2nd column negative 3 3rd column 1 3rd row 1st column negative 10 2nd column 5 3rd column 1 endmatrix comma bold upper b equals start 3 by 3 matrix 1st row 1st column 9 2nd column 4 3rd column negative 4 2nd row 1st column 4 2nd column 7 3rd column 0 3rd row 1st column negative 4 2nd column 0 3rd column 11 endmatrix period find left-parenthesis bold upper a plus bold upper b right-parenthesis superscript 2.

the entire expression should be subtracted from 30. to subtract the quantity, distribute the negative sign, which changes the signs on the terms. so, the –2 changes to positive and gets added to 30 instead of subtracted from it.

hope this ! ^w^

i think c. but don't trust it.

step-by-step explanation:

median is the value separating the higher half of a data sample, a population or probablity distribution from the lower half.

step-by-step explanation:

say you have 3,8,7,3,1,9,8 order them from lowest to highest

if orderd it would be 1,3,3,7,8,8,9 now you take away from the lowest and the highest until you end up in the middle.

so you would remove the 1 and 9 leaving you with 5 digits remaining

when you've reached the middle that would be your answer so in this case the answer is 7

if there were two numbers left say 7 and 5 you'd and them together so 12 then divide by 2 witch would equal 6 so the answer would be 6

good luck on that project hoped i you at all

y=x+9

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step-by-step explanation: