Answer:
C
Step-by-step explanation:
Noting that
+ (- ) is equivalent to subtraction
- (- ) is equivalent to addition
Given
13 + (- 12) - (- 5)
= 13 - 12 + 5
= 1 + 5
= 6 → C
<span>Let </span>
<span>X= the altitude of the lighthouse above sea
level= 80 ft</span>
A = the angle of depression
Y= the distance of the boat from the lighthouse= 400 ft
tan A=X/Y------------------ >
80/400=0.2
arctan (0.2)=11.31 degree
The answer is the angle of depression is 11 degree
Answer:
y = -2x + 7
Step-by-step explanation:
P.S: I solved it twice to show you that it doesn't matter which point you choose, you will get the same result.
But it is important when you calculate the slope
If you have any questions about the way I solved it, don't hesitate to ask me in the comments below ÷)