Answer:
x = -2
Step-by-step explanation:
2x + 4 = 0
2x= -4
x=-2
ANSWER

EXPLANATION
The given expression is

This is having a negative index. We must first of all change to a positive index.
Recall that,

We apply this law of exponents to get,

We cab rewrite the given expression to obtain;

This will simplify to give us,
Here is the solution of the given problem above.
Firstly, to make the solution easier, let us convert the mixed fractions.
2 3/4 is 11/4 (Pounds of beef needed)
1 1/6 is 7/6 (Pounds of beef available)
So, to get how much more he needs, we will deduct 7/6 from 11/4 and we get 19/12. And this fraction is equivalent to option A. 1 7/12. Therefore, he needs 1 7/12 pounds more. hope this answer helps.
Answer:
314 square centimeters
Step-by-step explanation: