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castortr0y [4]
3 years ago
15

Write an algebraic expression to represent the following verbal expression

Mathematics
2 answers:
Ber [7]3 years ago
6 0
The answerr is b. (X-43) cubed
DaniilM [7]3 years ago
4 0
The answer is B. They are saying to cube the difference therefore you have (x-43) cubed
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Show that p must be directed through centroids of cross sections if axial stress ? is not to vary over a cross section.
wolverine [178]
Assuming P (usually written in upper case) represents a force normal to a given cross section.

If a point load is applied to any point of the section, stress concentration will cause axial stress to vary.

The context of the question considers the uniformity of axial stress at a certain distance away from the point of application (thus stress concentration can be neglected).

If a force P is applied through the centroid, sections will be stressed uniformly.  However, if the force P is applied at a distance "e" from the centroid, the equivalent load on the section equals an axial force and a moment Pe.  The latter causes bending of the member, causing non-uniform stress.

If we assume A=(uniform) cross sectional area, and I=moment of inertia of the section, then stress varies with the distance y from the centroid equal to
stress=sigma=P/A + My/I
where P=axial force, M=moment = Pe.
Therefore when e>0, the stress varies across the section.
7 0
3 years ago
Which statements describe the function f(x) = 3(1/3)x? Check all that apply. Each successive output is the previous output divid
Citrus2011 [14]

Answer: A,b,e

A:Each successive output is the previous output divided by 3.

B:As the domain values increase, the range values decrease. 

E:The range of the function is all real numbers greater than 0. 

These are the answers on e2020. Hope this helps

6 0
2 years ago
Read 2 more answers
The Richter scale is used for measuring the magnitude of an earthquake. The Richter magnitude is given R = 0.67log(0.37E) + 1.46
natka813 [3]

Answer:

7.9982

Step-by-step explanation:

-The function for an earthquake's magnitude is given by  R = 0.67log(0.37E) + 1.46

-E is energy in kwh.

#For 15,500,000,000 kilowatt hours the magnitude would be:

R = 0.67\ log(0.37E) + 1.46,\ \  E=15,500,000,000  \ kwh\\\\\therefore R=0.67 \ log(0.37\times 15,500,000,000)+1.46\\\\\\=7.9982

Hence, the earthquakes magnitude is 7.9982

7 0
3 years ago
A circular tablecloth has a diameter of 6 feet,as show on the picture.
blondinia [14]
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8 0
3 years ago
Eve typed 160 words in 5 minutes on her typing test. At
kobusy [5.1K]

Answer:

25 minutes.

Step-by-step explanation:

800 divided by 160= 5

5 times 5 = 25 minutes

Hopefully that helps!

7 0
3 years ago
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