Carol is studying the eating habits of a pack of wolves. for this particular pack, it is considered unusual if a wolf eats less than 4 pounds, or more than 9 pounds, of meat per day. carol keeps a record of all unusual eating incidents.
which set describes the amount of food a wolf must eat to qualify as “unusual”?

(-∞, 4) ∪ (9, ∞)

Step-by-step explanation:

Let x represents the amount of food ( in pounds ) as unusual eaten by wolves,

Since, for considering the amount of food as unusual,

Amount of food < 4 pounds or amount of food > 9 pounds,

⇒ x < 4 or x > 9

⇒ ( -∞, 4 ) or ( 9, ∞ )

⇒ ( -∞, 4 ) ∪ ( 9, ∞ )

Which is the required set that describes the amount of food a wolf must eat to qualify as “unusual”.

Hence, third option is correct.

step-by-step explanation:

always plug in x. in this case, x equals 4.

i'm going to first solve 4(2+3x)

1) 4(2+3(4)) use pemdas to solve.

i'm going to multiply whats in the parenthesis first, so 3 times 4=12.

2)4 (2+12) i'm then going to multiply 4 by both numbers in the parenthesis (because multiplying comes before adding)

4 times 2= 8.   4 times 12= 48

4) (8+48)= 56 (answer)

i'm then going to solve 8+12x and plug in 4 for x.

1) 8 +12(4)

multiplying comes before adding, so i'm gonna multiply 12 and 4.

12 times 4= 48.

2) 8+48=56

both equal the same!