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fgiga [73]
4 years ago
6

Y = 7ex, y = 7e−x, x = 1; about the y-axis

Mathematics
1 answer:
atroni [7]4 years ago
3 0
A "typical" cylindrical shell of wall thickness dx at x=x will have the length (in the y-direction) L = (e^x – e^-x). 

<span>Rotating this shell about the y-axis generates a volume dV = 2.π.x.L = 2.π.x.(e^x – e^-x).dx </span>

<span>Total volume V of all such cylindrical shells in the given range = 2.π.∫x.(e^x – e^-x).dx </span>

<span>= 4.π.[x.cosh(x) – sinh(x)] from 0 to 1. Now insert the limits and we obtain: </span>

<span>= 4.π.[1.543 – 1.175] = 4.624 cubic units</span>
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Ramu and ravi borrowed rs 8000​
Phoenix [80]

Answer: Rs. 11,520

Step-by-step explanation:

As the method of compounding is not stated, the default of simple interest will be used.

Simple interest is a fixed amount that is paid over the course of the loan and is based on the original amount borrowed.

Formula is:

Amount owed = Amount borrowed * ( 1 + rate * time)

= 8,000 * ( 1 + 8% * 5.5 years)

= 8,000 * 1.44

= rs 11,520

4 0
3 years ago
Can you help me with this like explain how and stuff, Please?
eduard

Answer:

Step-by-step explanation:I belive that the 7x+22 needs to equal 50 because they opposite angles. Hope this helped a little and can get you started

7 0
3 years ago
Read 2 more answers
Write a problem that can be solved using a flowchart and working backward. Then draw the flowchart and solve the problem.
Len [333]
I'm sorry but do you ha e a picture of a flowchart
5 0
3 years ago
I need help . need to get done quick thank you
marissa [1.9K]

The first one equals 0.00116

The second one equals 195,000

the third one equals 0.0286

and the fourth one equals 87,310,000,000,000,000

The smallest one is A 0.00116

Hope this helps, Jesus loves you!

4 0
3 years ago
Read 2 more answers
M<br><img src="https://tex.z-dn.net/?f=m%20%7B2%7D%20%20%20-%20m%20-%202%20%3D%200" id="TexFormula1" title="m {2} - m - 2 = 0"
Serjik [45]

Answer:

m=2-2

m=0

Step-by-step explanation:

U need to do substitution

So u carry both 2 from that side to cross the equal to sign. One becomes positive because it is carrying a negative sign at the other side

4 0
3 years ago
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