Determine whether a relation r on the set of all people is reflexive, symmetric, antisymmetric, and/or transitive, for the following 4 different r's : a) a, b∈r iff a is taller than b b) a, b∈r iff a and b were born on the same day c) a, b∈r iff a has the same first name as b d) a, b∈r iff a and b have a common grandparent

afjnawenkfnjaw; enkanwelwaklalejjaw; fij

step-by-step explanation:

c

step-by-step explanation:

it would be see because your formula is f(x)=6x, so 6 times 1 is 6 and you go on and the best answer is c.

step-by-step explanation:

5=812a+9+3

step 1: simplify both sides of the equation.

5=812a+9+3

5=(812a)+(9+3)(combine like terms)

5=812a+12

5=812a+12

step 2: flip the equation.

812a+12=5

step 3: subtract 12 from both sides.

812a+12−12=5−12

812a=−7

step 4: divide both sides by 812.

812a /812 = -7/812

a= -1/116

so the answer is

a=   -1/116