Answer:
11.3 Km
Step-by-step explanation:
Consider the right triangle formed by AB and West.
The acute angle WAB = 270° - 250° = 20°
and West is the adjacent side of the right triangle with AB the hypotenuse
Using the cosine ratio in the right triangle, then
cos20° = 
= 
Multiply both sides by 12
12 × cos20° = adjacent
11.2763.. = adjacent, that is
B is 11.3 Km west of A
Answer:
y>5-x
Step-by-step explanation:
To solve this problem we need start by grouping terms in the same side of inequality.
Lets begging by grouping 'y' terms on the left side of inequality sign, to do this, subtract 3y to both sides:
2x+5y-3y>3y-3y+10
2x+2y>10
Now lets subtract 2x to both sides of inequality.
2x-2x+2y>10-2x
2y>10-2x
Now isolate variable x by dividing the inequaiity by 2.
y>5-x
That is the solution
Using the equation y=6x+12, where x is the number of hours and y is the total cost for the given value of x, you can plug in 42 for y and solve:
42=6x+12
42-12=6x
30/6=x
5=x
Thus, Amy can rent the bike for 5 hours.
Answer: OPTION D
Step-by-step explanation:
To complete the table, you need to substitute the values of "x" given in the table into the quadratic equation 
to obtain the corresponding value of "y".
Then:
When 
:
When 
:
When 
:
When 
:
