A group of engineers developed a new design for a steel cable. They need to estimate the amount of weight the cable can hold. The weight limit will be reported on cable packaging. The engineers take a random sample of 44 cables and apply weights to each of them until they break. The 44 cables have a mean breaking weight of 778.1 lb. The standard deviation of the breaking weight for the sample is 15.5 lb.

Find the 99% confidence interval to estimate the mean breaking weight for this type cable.

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Answers

Answer 1

Answer:

372.r2

Step-by-step explanation:


Related Questions

Look at the figure. How can you prove the triangles are congruent?

A) it is not possible to determine if the triangles are congruent

B) ABD = CBD by the SSS postulate

C) ABD = CBD by the SSS postulate

Answers

Answer:

Δ ABD ≅ Δ CBD  SSS

Step-by-step explanation:

AB ≅ CB                  Given                                

AD ≅ DC                  Given                                

BD ≅ BD                  Reflexive property      

Δ ABD ≅ Δ CBD      SSS      

Convert 62 miles to hour to feet to second​

Answers

62 Miles per Hour =

90.933333 Feet per Second

(rounded to 8 digits)

Which of the following numbers are rational, but NOT integers?

Select one or more:

a.√33
b.8.4
c.3/4
d.0

Answers

Answer:

0

Step-by-step explanation:

Zero is a rational number, and we know that the integer 0 can be written in any one of the following forms. ... Thus, 0 can be written as, where a/b = 0, where a = 0 and b is any non-zero integer. Hence, 0 is a rational number and not an integer.

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Answers

i believe the answer should be A.

967 times 24 equals?

Answers

Answer:

23,208 is the final answer.

Hope this helps!

Answer:

23,208

Hopefully this is correct

A family of 2 adults and 3 children goes to a play . admission costs $8per adults and $5 per child. what expression would show the total admission cost for the family

Answers

Answer:

8 + 8 + 16 5 * 3 is 15 16 + 15 is 31 that is the answer to the question

What is the value of 6(9+2)/h when g = 6 and h = 4?​

Answers

Answer: 12

Plug 6 and 4 into the problem-

6(6 + 2)/4

6(8)/4

48/4 = 12

Hey there!

6(g + 2) / h

= 6(6 + 2) / 4

= 6(8) / 4

= 8(6) / 4

= 8 + 8 + 8 + 8 + 8 + 8 / 4

= 16 + 16 + 16 / 4

= 32 + 16 / 4

= 48 / 4

= 48 ÷ 4 / 4 ÷ 4

= 12 / 1

= 12 ÷ 1

= 12


Therefore, your answer is: 12


Good luck on your assignment & enjoy your day!


~Amphitrite1040:)

hello can anyone please help with this.
Selina takes 1 and a half hours to cycle 12 miles.
What is her average cycling speed?

Answers

[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]

Given terms :

Distance covered (d) = 12 miles

Time taken (t) = 1.5 hour

Average speed :

[tex]v = \dfrac{d}{t} [/tex]

[tex]v = \dfrac{12}{1.5} [/tex]

[tex]v = 8 \: \ \: mph[/tex]

average speed = 8 mph

Answer:

8mph

Speed= Distance/Time

12/1.5= 8mph

please please please help PLEASE PLEASE

Answers

Step-by-step explanation:

refer to the picture.. hope this helps :)

Please help! Algebra question see picture...

Marking Brainliest!

Answers

Answer: G is -1/3

Step-by-step explanation:

If AM = x + 8 and MB= 6x – 2, find MB.

Answers

Answer:

10

Step-by-step explanation:

Firstly, AM=x+8

or, A=x+8-M......eqn (i)

MB=6x-2

or, B=6x-2-M......eqn (ii)

Now,

from eqn (i) and (ii)

x+8-M=6x-2-M

or, 8+2=6x-x-M+M

or, 10=5x

or, 10÷5=x

therefore, x=2

Again,

MB=6x-2

=6×2-2

=12-2

=10

is it correct

please mark me as BRAINLIEST

greatest common factor of 5, 6 and 15

Answers

Answer:

1

Step-by-step explanation:

As you can see when you list out the factors of each number, 1 is the greatest number that 5, 6, and 15 divides into.

May I please receive help?

Answers

They are perpendicular

the cost of a new laptop is $750 which genorates a sales tax of$37.50 what is the sales tax rate

Answers

Answer:

5%

Step-by-step explanation:

To find the sales tax rate, you would divide the tax by the cost to see the percentage of the tax.

$750 / $37.50= 0.05

The answer is 5%

Hope this helps

Function 1 is defined by following table what function has greater y- intercept?

Answers

Answer:

They both have the same y intercept

Step-by-step explanation:

(1,0)(0,3)

(0,3)(1,-1)

joseph traveled from Boston to Framingham at 50 mph and then back to boston at 40 mph, What was Joseph average speed on the round trip
*IT SAYS 45 IS NOT THE ANSWER*
*EXPLAIN HOW TO SOLVE IT*
30 BRAINLY POINTS!!!!!
AND BRAINLIEST!

Answers

Answer: 44.44 mph

(50 + 40) / 2 = X

88.88/2 = X

44.44= X

Step-by-step explanation:

State the reason for statement #5.
PLEASE ANSWER FAST

Answers

1. Given

2. Given

3. Alternate Interior Angles

4. Reflexive Property

5. SAS

Hope this helps!! :)


[tex]Simplify: \frac{ 5×(25)^{n+1} - 25 × (5)^{2n}}{5×(5)^{2n+3 }- (25)^{n+1​}} \\ [/tex]
Need help please"....."​

Answers

[tex] \green{\large\underline{\sf{Solution-}}}[/tex]

Given expression is

[tex]\rm :\longmapsto\:\dfrac{5 \times {25}^{n + 1} - 25 \times {5}^{2n} }{5 \times {5}^{2n + 3} - {25}^{n + 1} } [/tex]

can be rewritten as

[tex]\rm \:  =  \: \dfrac{5 \times { {(5}^{2} )}^{n + 1} - {5}^{2} \times {5}^{2n} }{5 \times {5}^{2n + 3} - {( {5}^{2} )}^{n + 1} } [/tex]

We know,

[tex] \purple{\rm :\longmapsto\:\boxed{\tt{ {( {x}^{m} )}^{n} \: = \: {x}^{mn}}}} \\ [/tex]

And

[tex] \purple{\rm :\longmapsto\:\boxed{\tt{ \: \: {x}^{m} \times {x}^{n} = {x}^{m + n} \: }}} \\ [/tex]

So, using this identity, we

[tex]\rm \:  =  \: \dfrac{5 \times {5}^{2n + 2} - {5}^{2n + 2} }{{5}^{2n + 3 + 1} - {5}^{2n + 2} } [/tex]

[tex]\rm \:  =  \: \dfrac{{5}^{2n + 2 + 1} - {5}^{2n + 2} }{{5}^{2n + 4} - {5}^{2n + 2} } [/tex]

can be further rewritten as

[tex]\rm \:  =  \: \dfrac{{5}^{2n + 2 + 1} - {5}^{2n + 2} }{{5}^{2n + 2 + 2} - {5}^{2n + 2} } [/tex]

[tex]\rm \:  =  \: \dfrac{ {5}^{2n + 2} (5 - 1)}{ {5}^{2n + 2} ( {5}^{2} - 1)} [/tex]

[tex]\rm \:  =  \: \dfrac{4}{25 - 1} [/tex]

[tex]\rm \:  =  \: \dfrac{4}{24} [/tex]

[tex]\rm \:  =  \: \dfrac{1}{6} [/tex]

Hence,

[tex]\rm :\longmapsto\:\boxed{\tt{ \dfrac{5 \times {25}^{n + 1} - 25 \times {5}^{2n} }{5 \times {5}^{2n + 3} - {25}^{n + 1} } = \frac{1}{6} }}[/tex]

How do I solve for this?

Answers

https://brainly.com/invite/3caaa23db4167cc1029ce1999a411bee?utm_source=invite&utm_medium=link&utm_campaign=bfp_parental_feed&utm_term=parent

Answer:

angle L = 100 degrees

angle M = 110 degrees

angle N = 70 degrees

angle P = 80 degrees

Step-by-step explanation:

find value of 'x' then substitute into each of the four angle expressions

to find 'x', add all expressions and set them equal to 360 (there are 360 degrees in any four-sided polygon)

2x + 20 + 3x - 10 + 2x - 10 + 2x = 360

combine 'like' terms to get:

9x = 360

x = 40

angle L = 2(40) + 20 = 100 degrees

angle M = 3(40) - 10 = 110 degrees

angle N = 2(40) - 10 = 70 degrees

angle P = 2(40) = 80 degrees

Check:

100 + 110 + 70 + 80 = 360

Given the following function, find f(-2), f(0), and f(1).
f(x) = x2 + 3
=

Answers

Answer:

jjjjnnuiuhjiihhiihb

Step-by-step explanation:

tyuijiojnoo.

yu8ijhiihj

The answer to f(-2) is -1. F(0) is 3. F(1) is 5.

what is the equation of the line that is perpendicular to y = −2x + 5 through the point (-4, -5)

Answers

Step-by-step explanation:

m1=-2

m1m2=-1

-2m2=-1

m2=1/2

y+5/x+4=1/2

so 2y+10=x+4

2y-x=-6

Answer:

[tex]y=\frac{1}{2}x-3[/tex]

Step-by-step explanation:

Hi there!

We are given the equation y=-2x+5 and we want to find the equation of the line that is perpendicular to that line, and pass through the point (-4, -5)

Perpendicular lines have slopes that multiply to get -1.

So to find the slope of the perpendicular line: use the formula [tex]m_1*m_2=-1[/tex], where [tex]m_1=-2[/tex]

Substitute:

-2m=-1

Divide both sides by -2

m=[tex]\frac{1}{2}[/tex]

Here's the equation of the line so far, as we know it, written in slope-intercept form (y=mx+b, where m is the slope and b is the y intercept):

[tex]y=\frac{1}{2}x+b[/tex]

We need to find b.

Because we know the line passes through the point (-4, -5), we can use it to help solve for b.

Substitute -4 as x and -5 as y

[tex]-5=\frac{1}{2}(-4)+b[/tex]

Multiply:

-5=-2+b

Add 2 to both sides

-3=b

Substitute -3 as b:

y=[tex]\frac{1}{2}x-3[/tex]

Hope this helps!

I NEED HELP ON 1 PLEASEEE

Answers

Answer:

C

Step-by-step explanation:

SA of a cylinder formula:

A=2πrh+2πr^2

A=2π(3)(15)+2π(3)^2

A=339.29in^2

Hope that helps

Answer:

Step-by-step explanation:

Hi there!

From the given figure;

Radius(r) = 3 inch

Height (h) = 15 inch

Now;

Total surface area (TSA) = 2πr(r+h)

                              TSA = 2*([tex]\frac{22}{7}[/tex])*3(3+15)

                               TSA = [tex]\frac{132}{7}[/tex]*18

                               TSA = 339.42in².

Therefore,  the answer is option c (339.29in²).

Hope it helps!

need help for 20 points.....plzzzzz



a^2/16-5ab+100b^2

Answers

is it factorization ...

Same I have the same problem

Convert the mixed numbers to improper fractions:1. 5 6/72. 8 3/9

Answers

1. 5x72+6 over 72 = 366/72
2. 8x9+3 over 9. = 75/9

hellppppppppppppppppppppppppp

Answers

Answer:

⁴/2

Step-by-step explanation:

because is I solveng to be a good

brainliest me

Answer:

Common ratio is - 4 / 2.

Step-by-step explanation:

Sequence = - 2, 4, - 8, 16, - 32, ....

Let the terms be " a ".

Here,

a1 = 2

a2 = 4

a3 = - 8

a4 = 16

a5 = - 32

Let the common ratio be " r ".

r1 = a2 / a1

= 4 / - 2

r1 = - 2

r2 = a3 / a2

= - 8 / 4

r2 = - 2

r3 = a4 / a3

= 16 / - 8

r3 = - 2

r4 = a5 / q4

= - 32 / 16

r4 = - 2

Since, the common ratios are same,

Therefore, r = - 2

- 4 / 2 = - 2

So, - 2 can also be written as - 4 / 2.

Hence,

r = - 4 / 2

Finally,

Common ratio ( r ) = - 4 / 2

Please what is the answer?

Answers

Answer: scale to measure the weight

Step-by-step explanation:

Find the value of x. 50° 83° X​

Answers

Answer: trap house

Step-by-step explanation:

BRAINLIEST!!! +10 POINTS!!! REAL ANSWERS ONLY PLEASE!!!

Answers

Answer:

plus ten points huh i only see five

Step-by-step explanation:

Answer:

|-x| + 3

Step-by-step explanation:

I say that because -x will be turned into positive x and then add the 3, and you will get the answer.

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screenshot

Answers

Answer:

2.511 square kilometers

person who answers this gets brainliest
If Manny the Martian's shadow is 17.5 ft. in length and the shadow of a yard stick sitting perpendicular to the ground is 7.5 ft., what is Manny's height?
A 8 ft
B 5.5 ft
C 6 ft
D 7 ft

Answers

Answer:

letter B.

Step-by-step explanation:

5.5ft

hope it helps you

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Will someone please write me an essay about voting laws?!! It's for edge 2021 for 60 points!!! PROMPTThe right to vote in the United States was inspired by the principles of democratic rule found in two ancient civilizations: Greek and Roman. Athenian democracy was founded on the idea of direct involvement of its citizens. In the Roman Republic, elected representatives governed on behalf of the citizens. In both cases, citizens had a voice in government, either directly or through elected councils, and were expected to participate by voting.Democratic government in the United States gives citizens the opportunity to vote for their representatives, but many people choose not to exercise that right. In many countries, however, compulsory voting laws exist that require all citizens to vote in elections.In a well-developed essay that includes an introduction, body paragraphs, and a conclusion, explain whether the United States should enact a compulsory voting law or let voting remain optional. Be sure to address counterclaims in your essay and include reasons and evidence to support your argument. in a second *Phrase or clause Prokaryotic cells lack which of the following? solve for x. round to the nearest tenth. 37 48 what is an installment plan? for a company making advanced technology, with highly specialized components, a customer divisional structure would be more effective than a modular structure. true or false? 1.What is misleading about the graph?"MASSIVE INCREASE INHOUSE PRICES THIS YEAR! it takes 2/3 of an hour to paint 2/5 of a room At which level of government can changes to the U.S Constitution be proposed?LocalStateNationalExecutive Which of the following equations listed below has a radius of 3?O A) x^2 + y^2 + 12x - 20y+ 132 = 0-O B) x^2 + y^2 + 12x - 20y + 55 = 0-O C) x^2 + y^2 - 12x+ 20y + 127 = 0-O D) x^2 + y^2 20x 16y + 155 = 0 what is the answer for f+f Read the sentence.Reyna will have finished all the essays required for the class by this Friday.Which verb tense is underlined?future perfect pastpresent past perfect which solution is hypertonic? solve pls brainliest Manuel is thinking about ordering some graphic T-shirts online. They cost $9 each, and shipping costs $8 regardless of order size. Write an equation that shows the relationship between the number of T-shirts Manuel buys, x, and the total amount he will pay, y. Do not include dollar signs in the equation. The hangings were carried out at monthly intervals. What might explain that? how do you do this 1 23 67 = HELP ME OUT PLEASE!! Tolerance, craving, and loss of control are physical effects of drug abuse that often lead to addiction a) True b) False Ray GI bisects DGH so that mDGI is 3x-9 and mIGH is 2x + 21. Find the m< DGI. What are the core elements of any citation?A. Capitalization and punctuationB. All available author and publication informationC. Biographical information about the author or editorD. The elements that are italicized