Answer:
The answer is 9.56
You can picture this in your head or you can do the math. You can see that the mast and the string make a right triangle. Now you need to picture a 12 foot tall string attached to the top of the mast and the attached 4 feet away from the bottom. Then all you have to do is see which answer makes the most sense.
2x-4(x+1)=-13
1) we solve this equation:
2x-4(x+1)=-12
2x-4x-4=-12
-2x=-12+4
-2x=-8
x=-8/-2
x=4
2) we evalute x²-1
x²-1=4²-1=16-1=15
Answer: 15
Answer:
V = 8.06 cubed units
Step-by-step explanation:
You have the following curves:
In order to calculate the solid of revolution bounded by the previous curves and the x axis, you use the following formula:
(1)
To determine the limits of the integral you equal both curves f=g and solve for x:
Then, the limits are a = -1 and b = 1
You replace f(x), g(x), a and b in the equation (1):
The volume of the solid of revolution is approximately 8.06 cubed units
The answer is a cause Alan
X=-5 is your answer. Hope this helps :)