Timedd
which of the following does not describe an example of mutually exclusive outcomes a and b for drawing a card at random from a standard 52-card deck?
a a = the card is red, b = the card is black
b a = the card is less than 8, b = the card is an 8
c a = the card is black, b = the card is a heart or a spade
d a = the card is red, b = the card is a spade

check above link.

graphically?   well, you graph them both, the solutions is where they both intersect each other, since there are two solutions, meaning they will meet twice, or namely the linear will run into the quadratic curve twice, and where they meet, those x,y coordinates are the solutions to the system.

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