Answer: 
Step-by-step explanation:
Height of the building AB= 443 meters
Distance between the building and the agent at the ground BC= 18 meters
Let x be the angle the agent should shoot his laser gun
Since ΔABC is a right triangle, then


3 feet / 16 second * 1 yd / 3 feet
3/16 * 1/3
3*1 / 16*3
3/48
1/16 yd/sec
I believe the answer is # 4
In function notation, where f is the function, f(x)=3x-10. Using f(x) means you can write things like f(0) which means: what is the value of the function when x=0? Think of f for flexibility, because functions have greater flexibility than variables like y.