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svetoff [14.1K]
3 years ago
10

A cylindrical hole is bored through a steel block, and a cylindrical piston is machined to fit into the hole. The diameter of th

e hole is 20.04 ± 0.01 cm, and the diameter of the piston is 19.92 ± 0.04 cm. The clearance is one-half the difference between the diameters. Estimate the clearance and find the uncertainty in the estimate.
Mathematics
1 answer:
prisoha [69]3 years ago
3 0

Answer:

The diameter of the hole is 20.04 ± 0.01 cm

The diameter of the piston is 19.92 ± 0.04 cm.

We are given that The clearance is one-half the difference between the diameters.

So, Clearance = \frac{1}{2}(20.04-19.92)

                      = 0.06

Uncertainty in the estimate =  \frac{1}{2}(0.01+0.04)

                                              =  0.025

So, Clearance with uncertainty is 0.06\pm 0.025

Hence  the clearance is 0.06 and the uncertainty in the estimate. is 0.025

                       

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-2x + 3y =-9<br> X+y = 2
geniusboy [140]

Answer:

The values of x and y to the given equation are x=3 and y=-1

The solution to the given equation is (3,-1)

Step-by-step explanation:

Given equations are -2x+3y=-9\hfill (1)

x+y=2\hfill (2)

To solve given equations by using elimination method :

Mutliply the equation (2) into 2 we get

2x+2y=4\hfill (3)

Now adding the equations (1) and (3)

-2x+3y=-9

2x+2y=4

_______________

5y=-5

y-\frac{5}{5}

Therefore y=-1

Now substitute the value of y=-1 in the equation (1) we get

-2x+3(-1)=-9

-2x-3=-9

-2x=-9+3

=-\frac{-6}{-2}

Therefore x=3

The values of x and y to the given equation are x=3 and y=-1

The solution to the given equation is (3,-1)

8 0
2 years ago
Marquis wrote the linear regression equation y=1.245*-3.684
Advocard [28]
I would say 35 because if you put in 35 for x you get 39.891
5 0
3 years ago
Read 2 more answers
calculates the sum of the first 8 terms of an arithmetic progression starting with 3/5 and ending with 1/4
N76 [4]

We conclude that the sum of the first 8 terms of the arithmetic sequence is 17/5.

<h3>How to get the sum of the first 8 terms?</h3>

In an arithmetic sequence, the difference between any two consecutive terms is a constant.

Here we know that:

a_1 = 3/5\\a_8 = 1/4

There are 7 times the common difference between these two values, so if d is the common difference:

a_1 + 7*d = a_8\\\\3/5 + 7*d = 1/4\\\\7*d = 1/4 - 3/5 = (5 - 12)/20 = -7/20\\\\d = -1/20

Then the sum of the first 8 terms is given by:

3/5 + (3/5 - 1/20) + (3/5 - 2/20) + ... + (3/5 - 7/20)\\\\8*(3/5) - (1/20)*(1 + 2 + 3+ 4 + 5 + 6 + 7) = 3.4 = 34/10 = 17/5

So we conclude that the sum of the first 8 terms of the arithmetic sequence is 17/5.

If you want to learn more about arithmetic sequences:

brainly.com/question/6561461

#SPJ1

6 0
1 year ago
Katarina uses fraction strips to show how many thirds are in 4/6.Is Katarina's model correct?Explain
Mariulka [41]

I cant see the model but 2/3 is the same as 4/6

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3 years ago
A rectangular plot of land where outdoor concerts are held is about to be enclosed by a fence. How many feet of fence will be ne
steposvetlana [31]

Answer:nm

Step-by-step explanation:

8 0
2 years ago
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