-1 must be added.
15+(-6)+12=21. If you add one more number, then you would have to divide the sum by 4 to get the mean. 5*4=20. To get to 20, you have to add -1.
A ramp is 17 feet long, rises 8 feet above the floor,
and covers a horizontal distance of 15 feet,
as shown in the figure.
(First box)
A. Sin B = 8/17
B. Cos B = 15/17
C. Sin A = 15/17
(Second box)
A. Sin B = 8/17
B. Cos B = 15/17
C. Cos A = 8/17
Hope this helps!
Answer:
first step close the computer u failed
Answer:
(attached file #2)
Step-by-step explanation:
let's change the variable n to a variable x (it can be x and y):
x ≥ -8
go to the X-axis which is the line going horizontal, just as the first picture attached!
2. Now go to the -8 on that line and draw a straight bold line going up (vertical)
and there you have the answer to the question.
if the question was with this symbol: < or > then the line would be dashed instead of being a bold solid straight line!
Hope this helps,
Lucas