Answer:
There are two options: b) 
, c) 
.
Step-by-step explanation:
By Trigonometry, we know that function tangent is equal to the following identity in terms of functions sine and cosine:
(1)
If we know that 
and 
, then 
. Hence, we have two possibilities: b) , c) .
We can write an equation to resemble the problem.
1160 = 170 + 50x
x equals the number of boxes he is carrying.
Solve for x.
1160 = 170 + 50x
990 = 50x
19.8 = x
We can't round up because that will be to much weight. So, we are going to round down.
19.8 -> 19
Therefore, the answer is 19.
Best of Luck!
Answer: D. 3/2
Step-by-step explanation:
These are the two equation
10-2
13-5
The answer is 4 because 2--2 the two negatives make it a positive so its 2+2=4
