Answer:
A. 0.186524036
Step-by-step explanation:
Cosine 79° 15'
But, 1° = 60'
Thus; 15' = 15/60 = 0.25°
Therefore;
cos 79° 15' = cos 79.25°
Cos 79.25° = 0.186524036
= 0.186524036
I think 48 cubic cm..... (Tell me if I did it wrong or not)
Here are a few rules you need to know for this equation:
- Multiplying exponents of the same base:

- Dividing exponents of the same base:

- Turning a negative exponent to a positive one:

So this is our algebraic expression: 
Firstly, multiply 3^-4 and 3^2: 
Next, divide:

Next, turn the negative exponent into a positive one: 
<u>Your final answer is 3/2, or 1.5.</u>
If you plot them you will see that the intersect each other in two different points.
The solution of a system of equations is the set of points of intersection of the graphs of the equations.
The answer is D.