Answer:

Step-by-step explanation:
This is basic trigonometry.




And finally perimeter (p):

Place the x (1.5) and y (5) values into the equation, and solve. If the statement you get is true, it is a solution.
2x - y = -1
2(1.5) - 5 = -1
3 - 5 = -1
-2 ≠ -1
Since this is a false statement, negative 2 is not equal to -1, the ordered pair is NOT a solution. I hope this helps and have a great day!
Volume=4/3 x pi x radius^3
volume=4/3 x 3.14 x 9^3(because 9 is half of 18 the diameter)
volume=3.052.08 cubic inches.
Answer:
55 v 56 v70
Step-by-step explanation: