The answer is A because zeros of polynomial functions are found by setting each factor equal to zero and solving for x. The zeros of a function will be the opposite sign of the numbers inside each factor.
Answer: The answer is 
Step-by-step explanation: Given that Rei is barricading a door to stop a horde of zombies by satcking boxes of books on a table in front of the door.
The weight of each box is 30 kilograms and the weight of the table with 8 boxes on the top is 310 kilograms.
So, if 'g' denotes the weight of the table alone, then we have

Therefore, the weight of the table without boxes is 70 kilograms.
Now, if 'W' is the total weight of the barricade, then it can be written as a function of 'x', the number of boxes Rei stacks on the table. The expression is as follows -

Thus, the required function is

Step-by-step explanation:
the answer is going to be 48 ounces instead.
53-49=4
4 times 12=48. the unknown number is 48
Answer:
The submarine is 10.4 km far from its base.
Step-by-step explanation:
Given that:
Distance traveled east = 7km
Distance traveled north = 12.5 km
This is will form a right triangle, where the distance from east to north is hypotenuse.
Here,
a = 7 , b = x and c = 12.5
Using Pythagorean theorem,

Taking square root on both sides

Hence,
The submarine is 10.4 km far from its base.