A = L * W
W = L - 5
these are in inches...
length width area
10 5 50 in^2
9 4 36 "
8 3 24 "
7 2 14 "
6 1 6 "
Answer:
If you know the radius of a circular track, you can use physics to calculate how fast an object needs to move in order to stay in contact with the track without falling when it reaches the top of the loop.
Answer:
a=8.2
Step-by-step explanation:
Substitute y in the first equation.
-8x = -x - 14
+x +x
-7x = -14
-7x/-7 = -14/-7
x = 2
Now solve for y.
y = -18(2)
y = -36
Answer: (2, -36) or y = -36 and x = 2
ANSWER
EXPLANATION
We need to use the Pythagoras Theorem to find the height of the triangle.
Take positive square root to get;
Area =½bh
