If you did not learn a different method for unit conversion in a previous class, respond to the following statement.

Explain how to use the unit-factor method to convert 120 pounds to kilograms.
Hint: 1 kilogram=2.2 pounds
To write the unit factors, use the / symbol, like this: 1 gallon/3.79 liters.

Answers

Answer 1

Answer:

120 pounds = 54.5 kilogram

Step-by-step explanation:

We know that,

1 kilogram=2.2 pounds

or

1 pound = (1/2.2) kilogram

We need to convert 120 pounds to kilograms.

[tex]120\ \text{pounds}=\dfrac{120}{2.2}\ \text{kilogram}\\\\=54.5 \text{kilogram}[/tex]

So, there are 54.5 kilograms in 120 pounds.


Related Questions

Instructions: Find the missing side. Round your answer to the nearest tenth.

Answers

Using the sine ratio, the length of the missing side is: 11.8.

How to Find Missing Side Using the Sine Ratio?

The sine ratio is, sin ∅ = opposite/hypotenuse.

Given the following:

∅ = 24°

Opposite = x

Hypotenuse = 29

sin 24 = x/29

x = (sin 24)(29)

x = 11.8

Learn more about the sine ratio on:

https://brainly.com/question/2920412

#SPJ1

What must be added to x² + 6x²-x+ 5 to make it exact divisible by (x + 3)​

Answers

Let f(x) = x² + 6x²-x+ 5 then ,

number to be added be P

then,

f(x) = x² + 6x²-x+ 5 +P

According to the qn,

(x+3) is exactly divisible by zero then,

R=0

comparing .. we get a= -3

now by remainder theorm

R=f(a)

0=f(-3)

0=(-3)² + 6(-3)²-(-3)+ 5 + P

0= 9 + 54 + 3 + 5 + P

-71=P

therefore, -71 should be added.

Hope you understand

HELPPP DOES ANYONE KNOW THE ANSWER???

Answers

Answer:

B

Step-by-step explanation:

solve equation.

In a professional division of a Hockey league, there are 9 total teams. How many different rankings are possible at the end of the year

Answers

It would be 362880 you can use the formula for permutations

Which of these is a characteristic of certificates of deposit (CDs)? O They are always offered at variable rates They last for a set period of time They can be opened with any amount of money O They allow access to the money at any time without penalty​

Answers

The characteristic of certificates of deposit (CDs) is that it last for a set period of time and is denoted as option B.

What is Certificate of deposit?

This is also referred to as time deposit and is characterized by a lump sum being saved at a fixed period of time and is stricter than the normal savings system.

This type of savings has a fixed interest rate and can't be withdrawn before the maturity date unlike savings account which can be accessed at any point in time which makes it unique and is therefore the most appropriate choice.

Read more about Certificate of deposit here https://brainly.com/question/3898300

#SPJ1

The cross-sectional areas of a triangular prism and a right cylinder are congruent. The triangular prism has a height of 5 units, and the right cylinder has a height of 3 units. Which conclusion can be made from the given information? (1 point) The volume of the prism is half the volume of the cylinder. The volume of the prism is twice the volume of the cylinder. The volume of the prism is equal to the volume of the cylinder. The volume of the prism is not equal to the volume of the cylinder.

Answers

Answer:

Step-by-step explanation:

The volume of the prism is not equal to the volume of the cylinder.

What is an equation?

An equation is an expression that shows the relationship between two or more numbers and variables.

Let x represent the cross sectional areas of a triangular prism and a right cylinder.

Volume of cylinder = cross sectional area * height = 3 * x = 3x

Volume of triangular prism = cross sectional area * height = 5 * x = 5x

The volume of the prism is not equal to the volume of the cylinder.

Find out more on equation at: https://brainly.com/question/2972832

#SPJ1

1.) Write a word problem that can be described by the division expression 3 divided by 1/4.

2.) Solve your word problem using a model. Use complete sentences to describe your model, and interpret the quotient in the context of your word problem. If you wish, you may upload a copy of your model.

3.) Use multiplication to check your answer in question #2. Show or explain all of your work.

Answers

The word problem can be:

"let's say that you have $3, and there is an item that costs $(1/4), how many of these items can you buy?"

And the solution is N = 12.

How to write the word problem?

We want a problem that can be described by 3 divided by 1/4.

So, let's say that you have $3, and there is an item that costs $(1/4), how many of these items can you buy?

The solution to that question is given by:

[tex]N = \frac{3}{1/4}[/tex]

2) To solve this, we can use a really simple model.

In one unit, we have 4 fourts.

Then in 3 units, we have 3*4 = 12 fourts.

Then the answer is 12.

3) How to use multiplication?

Remember that dividing by a fraction is equivalent to multiplying by the inverse of said fraction, then:

[tex]N = \frac{3}{1/4} = 3*(4/1) = 12[/tex]

We got the same thing as above.

If you want to learn about fractions:

https://brainly.com/question/11562149

#SPJ1

Find the area of this circle

Answers

Answer:

[tex] {75ft}^{2} [/tex]

Step-by-step explanation:

[tex]a = \pi{r}^{2} = 3 {r}^{2} \\ a =3 ({ \frac{10}{2} })^{2} = 3 \times {5}^{2} \\ a = 3 \times 25 = 75[/tex]

First, we replace π with 3, since we were told to.We know 10 is the diameter and the radius is half of the diameter, so we divide 10 by 2.We get 5. 5 squared is the same as (5×5). Finally, we multiply 3 by 25.
Calculate the area of the circle

To start solving this exercise, we obtain as data:

π = 3r = 10 ft²a = ?

To find the area of the circle. We apply the following formula: A =π r², where

a = areaπ = pir = radius

We substitute our data in the formula and solve:

Substituting values into the equation:

[tex]\boldsymbol{\sf{A=3*(10 \ ft)^{2} }}[/tex]

Taking the square root:

[tex]\boldsymbol{\sf{A=3*100 \ ft^{2} }}[/tex]

Multiplying

[tex]\boxed{\boldsymbol{\sf{A=300 \ ft^{2} }}}[/tex]

Therefore, the area of the circle is 300 ft².

As a fundraiser, the music boosters wrapped gifts at the mall one weekend. out of the 100 gifts they wrapped, 310 3 10 were for weddings, and 37100 37 100 were for baby showers. the rest of the gifts were for birthdays. what fraction of the gifts was for birthdays? enter your answer in the boxes.

Answers

For birthday events 33/100 gifts were packed by the music boosters at the mall.

Calculation of the fraction

Total number of gift items = 100

For the wedding purpose,out of 100 gifts, 3/10 number of gifts were boxed = 3/10*100 = 30

For the baby shower, out of 100 gifts, 37/100 gifts were packed = 37

The rest amount of the gift = 100-( wedding + baby shower)

= 100-(30+37) = 33

So, according to the question, these 33 numbers gift was for a birthday.

When it is expressed as a fraction,

The fraction should be = 33/100

Therefore, it is concluded that 33/100 gifts were packed for birthday occasions.

Learn more about the fraction here:

https://brainly.com/question/10354322

#SPJ4

Suppose that f'(4) = 3 , g'(4) = 7 , g(4) = 4 and g(x) not= to 4 for xnot= to 4 . then cmpute lim xgose to 4 f(g(x))/x-4-f(4)/x-4

Answers

It looks like the limit you want to compute is

[tex]\displaystyle \lim_{x\to4} \frac{f(g(x)) - f(4)}{x-4}[/tex]

Since [tex]g(4)=4[/tex], this limit corresponds exactly to the derivative of [tex](f\circ g)(x) = f(g(x))[/tex] at [tex]x=4[/tex]. Recall that

[tex]f'(a) = \displaystyle \lim_{x\to a} \frac{f(x) - f(a)}{x - a}[/tex]

By the chain rule,

[tex](f\circ g)'(4) = f'(g(4)) \times g'(4) = f'(4) \times g'(4) = 3\times7 = \boxed{21}[/tex]

Since [tex]g'(4)[/tex] exists, [tex]g[/tex] is differentiable at [tex]x=4[/tex] so it must be continuous.

Factor the greatest common factor: −6m2 18m − 36. −6(m2 − 3m 6) −1(6m2 − 18m 36) −6m(m2 − 3m 6) −6(m2 3m − 6)

Answers

Answer:

Step-by-step explanation:

−6m2 18m − 36

= -6(m2 - 3m + 6)

Richard wants to weed 33% of his garden today. The total garden is 144 square yards. How many square yards should Richard weed to reach his goal?​

Answers

The answer is 47.52
to solve is shown below:

(The two triangles are not the same)

Answers

In the quadrilateral ABCD, in which angle A = 60° and angle B = 50°. The measure of angles C and D are,

∠C = 200° and ∠D = 50°

In the quadrilateral ABCD, it is given that,

A = 60° and angle B = 50°

Now, since AC is the angle bisector of angles A and C, we have,

∠DAC = ∠BAC ......... (1)

And ∠ACD = ∠ACB ............ (2)

Also, AC divides the quadrilateral ABCD into two triangles, ΔABC and ΔACD.

In ΔABC, ∠BAC = 30° [from (2)] and ∠ABC = 50°

Using angle sum property of a triangle, we have,

∠BAC + ∠ABC + ∠ACB = 180°

⇒ 30° + 50° + ∠ACB = 180°

80° + ∠ACB = 180°

∠ACB = 180° - 80°

∠ACB = 100°

From (1), ∠ACD = ∠ACB = 100°

∠C = ∠ACD + ∠ACB

⇒ ∠C = 100° + 100°

∠C = 200°

Now, according to the angle sum property of a quadrilateral,

∠A + ∠B + ∠C + ∠D = 360°

Substituting the values of ∠A, ∠B, and ∠C, we get,

60° + 50° + 200° + ∠D = 360°

310° + ∠D = 360°

∠D = 360° - 310°

∠D = 50°

Hence, in quadrilateral ABCD, ∠C = 200° and ∠D = 50°

Learn more about a quadrilateral here:

https://brainly.com/question/13805601

#SPJ1

11. Find the slope of the line that passes through the pair of points. (1, 7), (10, 1)

Answers

Answer:

m = [tex]-\frac{2}{3}[/tex]

Step-by-step explanation:

m = [tex]\frac{y2-y1}{x2-x1}[/tex]

m = [tex]\frac{1-7}{10-1}[/tex]

m = [tex]\frac{-6}{9}[/tex]

m = [tex]-\frac{2}{3}[/tex]

Answer:

-2/3

Step-by-step explanation:

slope = (y_2 - y_1)/(x_2 - x_1)

slope = (1 - 7)/(10 - 1)

slope = -6/9

slope = -2/3

Find the volume of the prism. Round to the nearest tenth if necessary.

Answers

Answer:

14.7 (Because you asked for no units)

Step-by-step explanation:

The volume of this triangular prism is 1/2 BHL

0.5 * 3.5 * 2 * 4.2 = 14.7 ft^3

THIS IS VERY HARD PLSSS

Answers

Answer:

[tex]y=3\sqrt{x-1}-7[/tex]

Step-by-step explanation:

We are given the function [tex]y=\sqrt{x}[/tex]. Let's apply each transformation separately and see what we get. First, let's apply the vertical shift. We are told that the graph shifts downwards by 7 units. In other words, when x is 0, y should be -7 instead of 0. We can accomplish that by changing the y-intercept of the graph and subtracting our function by 7: [tex]y=\sqrt{x} -7[/tex]. Notice that the -7 is outside the square root.

Next, we can apply the horizontal transformation. We are told that the graph shifts to the right 1 unit. This means that, for [tex]y=\sqrt{x}[/tex], if y is 0, x should be 1. We can accomplish this by doing [tex]y=\sqrt{x-1}[/tex] (if x = 1, y will be 0). Now, we can combine the two transformations we have done so far: [tex]y=\sqrt{x-1}-7[/tex].

Lastly, we need to vertically stretch the function by a factor of 3. All we have to do here is multiply sqrt(x) by 3 (this way, if x is equal to 1, y should be 3 instead of 1 (3 times x)). So, we get something like this: [tex]y=3\sqrt{x}[/tex]. Now, we can combine all of the transformations we did to get our final answer:

[tex]y=3\sqrt{x-1}-7[/tex]

How to simplify equations

Answers

Simplifying equation is done by either reducing the complexity or the components parts of an equation for better understanding.

Simplify

This means to make simpler, either by reducing in complexity, reducing to component parts, or making easier to understand.

Simplification is an act of simplifying an equation or expression.

For instance,

Simplify 4(3x + 2) - 4(2x)

open parenthesis

= 12x + 8 - 8x

= 12x - 8x + 8

= 4x + 8

Simplify 1/2 + 2/3

= (3+4) / 6

= 7/6

Learn more about simplification:

https://brainly.com/question/723406

#SPJ1

Mateo teaches a continuing education class at the library on tuesday nights. he estimates that 75% of his students are satisfied or very satisfied with the class. last week, he asked a random sample of students to take a survey on their experience in the class. however, the results showed that only 70% indicated that they are satisfied or very satisfied with the class. he decides to randomly survey more of his students. how will mateo know whether his model is valid or not?

Answers

The computed value must closely match the real value for a model to be considered valid. If the percentage of pleased or very satisfied students remains close to 75% after Mateo surveys additional students, Mateo's model is still viable. The model is faulty if the opposite is true.

How will mateo know whether his model is valid or not?

In general, a valid model is one whose estimated value is close to the real value. This kind of model is considered to be accurate. It must be somewhat near to the real value if it doesn't resemble the real value.

If the findings of the survey are sufficiently similar to one another, then the model may be considered valid.

P1 equals 75%, which is the real assessment of the number of happy pupils

P2 is 70 percent; this represents the second assessment of happy pupils

In conclusion,  The estimated value of a model has to be somewhat close to the real value for the model to be considered valid. If the number of students who are either pleased or extremely satisfied remains close to 75 percent following Mateo's survey of more students, then Mateo's model is likely accurate. In any other scenario, the model cannot be trusted.

Read more about probability

https://brainly.com/question/795909

#SPJ1

seven twelfths plus two twelfths equals one half 1 one and one half 2

Answers

Answer:

the answer is 3/4 because 7/12 + 2/12 is 9/12 which simplified is 3/4

Step-by-step explanation:

Use the quadratic formula to solve the equation below.
x (x + 16) = − 64

Answers

X2+16X+64=0
(x+8)(x+8)=0
x+8=0
x=-8

Use the grouping method to factor this polynomial completely. 3x^3+12x^2x+8

Answers

Answer:171x+8

Step-by-step explanation:

3x^3+12x^2x+8

=27x+144x+8

=171x+8

The average household income for a recent year was $30,000. five years earlier the average household income was $24,500. assume sample sizes of 34 were used and the population standard deviation of both samples were $5928. at 5% level of significance is there enough evidence to believe that the average household income has increased?

Answers

Using hypothesis test, we conclude that there is evidence to believe that the average household income has increased.

According to the question,

The average household income for a recent year (x₁⁻) = $30,000

The average household income for a recent year (x₂⁻) = $24,500

sample sizes n₁ = n₂ = 34

standard deviation of both samples were $24,500. Thus, s₁ = s₂ = $5928.

Null hypothesis:  There is no evidence to believe that the average household income has increased.

H₀ : μ₁ ≤ μ₂

Alternative hypothesis:  There is evidence to believe that the average household income has increased.

H₁: μ₁ > μ₂  

To check hypothesis we have the formula

Standard error=  [tex]\sqrt{\frac{s_{1} ^{2} }{n_{1} } + \frac{s^{2} _{2} }{n_{2} } }[/tex]

= [tex]\sqrt{2067128.4706}[/tex]

= 1437.7512

Thus, standard error is $1437.7512.

Formula for test statistic = [(x₁⁻ -  x₂⁻) - (μ₁ - μ₂)]/standard error

= [(30000 -  24500) - 0]/1437.7512

= 3.8254

The critical value of z at 5% level of significance is 1.6449.

Here, the calculated value is greater than the critical value so we reject H₀.

Hence using hypothesis test, we conclude that there is evidence to believe that the average household income has increased.

Learn more about hypothesis test here

https://brainly.com/question/15060525

#SPJ2


Damian has 74 m of fencing to build a four-sided fence around a
rectangular plot of land. The area of the land is 342 square meters.
Solve for the dimensions (length and width) of the field.

Answers

Answer:

Step-by-step explanation:

Let the length be l and the width be y. We have the following:


l + w = 37

lw = 342


From here, we can find the factor pairs of 342, and see which pair has a sum of 37. Our desired pair is 18 & 19, so the dimensions of the field are 18 by 19 feet.

Which of the following is
key property of the quadratic parent function?
A. Its vertex is at the origin.
B. It is not a function.
C. It iS not a parabola.
D It is in quadrants III and IV.

Answers

Answer:

Step-by-step explanation:

i think it is c

Answer:

A

Step-by-step explanation:

So let's look at each and determine whether they're true or not.

A. It's vertex is at the origin:

   This is true! The reason for this is because you can express a quadratic in vertex form as such: [tex]f(x)=a(x-h)+k[/tex] where (h, k) is the vertex. If you remember the parent function is simply: [tex]f(x)=x^2[/tex] which we can express as: [tex]f(x) = (x-0)+0[/tex] meaning the vertex is at (0, 0). This also intuitively makes sense, the x^2 will only output positive values for real numbers, so when x<0, f(x) is still going to be positive because it's squaring the negative, so that means when you go from -5 to -4, even though you increased x by 1, the f(x) decreases by 1, since it's squaring the value to get a positive value. The lowest value this can output is 0 because 0^2 = 0. This means you vertex is at the origin.

B. It is not a function:

   So the quadratic parent function only outputs 1 value for each input, although it isn't a one-to-one function, meaning that each output isn't unique, but each input still only outputs 1 output, which makes this a function

C. It is not a parabola:

   parabolas are expressed as quadratic equations, so this is false.

D. It is in quadrants ||| and IV:

   This is not true since the parent function opens upwards and has a vertex at (0, 0) so it will only be in quadrant I and II. I'll provide a diagram showing this.

Which explicit formula generates the infinite sequence 2, 9, 28, 65, 126,.?
O a-n²
O a-n²+1
O a-n³
O a-n³+1
Mark this and return
Save and Exit
Next
01:57:15
Submit

Answers

Answer:

n^3 + 1.

Step-by-step explanation:

Each term is 1 more than a perfect cube.

2 = 1^3 + 1

9 = 2^3 + 1

28 = 3^3 + 1

65 =  4^3 + 1

126 = 5^3 + 1

So the explicit formula is n^3 + 1.

The explicit formula that generates the given sequence is indeed aₙ = n³+1.

What is Sequence?

Sequence is an enumerated collection of objects in which repetitions are allowed and order matters.

The nth term of the sequence can be obtained by substituting n = 1, 2, 3, ... into the expression n³+1:

a₁ = 1³+1 = 2

a₂ = 2³+1 = 9

a₃ = 3³+1 = 28

a₄ = 4³+1 = 65

a₅ = 5³+1 = 126

Hence, the explicit formula that generates the given sequence is indeed aₙ = n³+1.

To learn more on Sequence click:

https://brainly.com/question/21961097

#SPJ5

Please explain your steps as I'm a bit confused about the process... thanks!!!

Answers

Answer:

x = -1.5056

Step-by-step explanation:

To solve this equation log both sides and apply log rules.

[tex]14^{x-7}=12^{6x}[/tex][tex]log14^{x-7}=log12^{6x}[/tex][tex](x - 7)log14=6xlog12[/tex]

Substitute the values of logs:

[tex](x - 7)*1.1461 = 6x*1.0791[/tex]

Solve it as linear equation:

[tex]1.1461 x - 7*1.1461 = 6.4746x\\[/tex][tex]1.1461x - 6.4746x = 8.0227[/tex][tex]-5.3285x = 8.0227[/tex][tex]x = 8.0227/-5.3285[/tex][tex]x = -1.5056[/tex]

If the polynomials p(x) = ax³+4x²+3x-4 and q(x) = x² - 4x + a, leave the same remainder when divided by (x-3), find value of a.




Steps pls​

Answers

Answer:

a = -22/13.

Step-by-step explanation:

By the Remainder Theorem

p(3) = remainder    when p(x) is divided by x-3.

q(3)  is equal to the same remainder.

So we have:

p(3) = q(3) , so

a(3)^3 + 4(3)^2 + 3(3) - 4 = 3^2 - 4(3) + a

27a + 36 + 9 - 4 = 9 - 12 + a

27a - a = 9 - 12 - 36 - 9 + 4

26a = -12 - 36 + 4

26a = -44

a = -44/26

a = -22/13.

What are the potential solutions of log4X+log4(x+6)=2?
Ox=-2 and x=-8
Ox=-2 and x = 8
O x=2 and x=-8
Ox=2 and x=8

Answers

Answer:

x = 2 ;   x = -8

Step-by-step explanation:

Log rule: Log a + log b = log a*b

 [tex]\sf \ log_4 \ x +log_4 \ (x +6) = 2\\\\ log_4 \ (x)*(x +6) = 2\\\\[/tex]

    log₄  ( x² + 6x) = 2

                        4² = x² + 6x

         x² + 6x - 16 = 0

   x² - 2x + 8x - 16 = 0  

   x(x - 2) + 8(x - 2) = 0

       (x - 2) (x + 8)   = 0

x - 2 = 0  or x + 8 = 0

    x  = 2  or      x  = - 8

The half-life of a radioactive material is about 2 years. How much of a 5.0 kg sample of this material will remain after 4 years

Answers

The remaining amount after 4 years is 1.25 kg

How to determine the remaining amount?

The half life of a function is represented as:

[tex]A = A_o * (1/2)^{t/h}[/tex]

Where

Ao represents the initial amount

So, we have:

[tex]A = 5 * (1/2)^{t/2}[/tex]

In 4 years, t = 4.

So, we have:

[tex]A = 5 * (1/2)^{4/2}[/tex]

This gives

[tex]A = 5 * (1/2)^2[/tex]

Evaluate the expression

A = 1.25

Hence, the remaining amount after 4 years is 1.25 kg

Read more about half life at:https://brainly.com/question/26148784

#SPJ1

Can we write 0 in the form of p by q?

Answers

Answer:

Yes

=======================

Any rational number can be written in the form of p/q as per definition of a rational number.

In case with zero, it can be:

p = 0,q = any number other than zero.

So, we'll have:

0/any number = 0
Other Questions
cost center managers are evaluated on their success in controlling actual costs compared to budgeted costs true or false waht are reactions with negetie reation free enegies occur spontaneoulst and repidly false An alpha particle with a kinetic energy of 8.00MeV makes a head-on collision with a gold nucleus at rest.What is the distance of closest approach of the two particles? (Assume that the gold nucleus remains stationary and that it may be treated as a point charge. The atomic number of gold is 79, and an alpha particle is a helium nucleus consisting of two protons and two neutrons.) The term that refers to the automatic detection of defects is: 100% inspection O automation autonomation kanban kaizen general meters is considering two mergers. the first is with firm a in its own volatile industry, the auto speedometer industry, while the second is a merger with firm b in an industry that moves in the opposite direction (and will tend to level out performance due to negative correlation). general meters merger with firm a general meters merger with firm b possible earnings ($ in millions) probability possible earnings ($ in millions) probability $ 20 0.20 $ 20 0.15 45 0.40 45 0.50 70 0.40 70 0.35 a. compute the mean, standard deviation, and coefficient of variation for both investments. what did carmichael, hogan, and walter (1932) find when they presented words with line drawings to participants and later tested their memory? is the best metaphor for how an action potential occurs? byrons poem ""darkness"" is unusual among romantic poems because it __________. how did the breakup of the soviet union and the end of the cold war influence bushs foreign policy? Rock Springs Mountain Company has beginning retained earnings of $600,000, earns a net income of $100,000, and pays dividends of $12,000 during the period.The balance in Rock Springs' Mountains ending retained earnings is:A. $712,000B. $688,000C. $700,000D. $488,000 The beach boys original band name referred to what?. a cord is wrapped around each of the two 16-kg disks. they are released from rest. suppose that r = 84 mm . neglect the mass of the cord What does the iso 9001 explanation say what we do mean advent health? Which of the following may occur during an annealing heat treatment? a. Stress may relieved. b. Ductility may increase. c. Toughness may increase. d. A specific microstructure may be produced. e. All of the above. Which is an example of a medication commonly prescribed for mental health disorder ? Select the items below that would cause the bank statement balance to differ from the depositor's book balance.Multiple choice question.NSF check, Deposit in transit, interest paid by bankNSF check, Outstanding checks, Supplies expensesBank Service charges, Deposit in transit, Cleared checksCleared checks, Bank service charge, NSF check a reactiom that typically occurs spontaneosuly is not happening due to the kinetic energy amongst the reactants being too low. which change would mosy likey lead to this reaction occuring Calculate the DC resistance in ohms per kilometer for an aluminum conductor with a 3 cm diameter, if resitivity of Aluminum is 2.83 10-8 -mSelect one:a. 0.40 /kmb. 0.040 /kmc. 4.0 /kmd. 40.0 /km How can this document be used to argue against america going to war with mexico? What is different about the normality requirement for a confidence interval estimate of the population standard deviation and the normality requirement for a confidence interval estimate of the population mean? why do young american children generally demonstrate a larger fall off in competence after 10 when compared to age-matched chinese children?