On a number line, b, is located the same distance from 0 as another number, a, but in the opposite direction. The number b varies directly with number a. For example b= 11/4 when a= -11/4 A) b=-a

B) -b=-a

C) b-a=0

D) b(-a)=0

B and A

Step-by-step explanation:

So based on the facts given, we know that b and a both have the same abasolute value. It does not matter whether a or b is negative or positive.

answer: .64

step-by-step explanation

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

%40

step-by-step explanation: