the ages for a random sample of 30 employees at house mart resulted in the following descriptive statistics. the lower and upper limits for a 99% confidence interval would be approximately and ?

Answers

Answer 1

The lower and the upper limit for a 99% confidence interval would be approximately 37.51 and 50.03

Here,

Mean = 43.77

Standard deviation (s)= 12.43655

n= 30

So,

   CI= mean ± t (s/√n)

      = 43.77±2.756(12.43655/√30)

      = 43.77±6.26

      = 37.51,50.03

So, the lower and upper limit would be 37.51 and 50.03

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Related Questions

a road running north to south crosses a road going east to west at the point pp. car a is driving north along the first road, and car b is driving east along the second road. at a particular time car a is 1010 kilometers to the north of pp and traveling at 80 km/hr, while car b is 15 kilometers to the east of pp and traveling at 100 km/hr. how fast is the distance between the two cars changing?

Answers

The speed at which the gap between the two vehicles is narrowing is 154.4 km/h.

What is unitary method?

The unitary technique involves first determining the value of a single unit, followed by the value of the necessary number of units. what kinds of values and units

Let's say you go to the store to buy six apples.

You are informed by the shopkeeper that he is offering 10 apples for Rs 100. In this instance, the value and the units are the price of the apples. Recognizing the units and values is crucial when using the unitary technique to a problem.

Always write the items that need to be computed on the right side and the things that are known on the left side to simplify things.

We are aware of the quantity of apples and the amount of money in the aforesaid problem.

According to our question-

D^2 = (x^2 + y^2) + z^2

2*D*dD/dt  =  2*x*dx/dt  + 2*y*dy/dt  + 0 (since z is constant)

D^2 =  c^2 + z^2 = (x^2 + y^2) + z^2  =  10^2 + 15^2 + 2^2  = 100 + 225 + 4  = 329

= 2800/sqrt(329) = 154.4 km/hr

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Please help with this….

Answers

Answer: i belive its B but im not 100%

Step-by-step explanation:

The graph below represents the distance of a dog from a trainer after a command is given.

A graph titled Dog Obedience School. The horizontal axis shows Time (seconds), numbered 1 to 10, and the vertical axis shows Distance (yards) numbered 4 to 40. The line shows an increase, then decrease, then constant distance.

Which statement could describe the dog’s movement at 5 seconds once the command was given?

The dog stopped to lie down and obey the trainer’s command.
The dog was running towards the trainer to receive a treat.
The dog was running away from the trainer to chase a squirrel.
The dog was stopped but began running towards the trainer.

Answers

The statement dog was running towards the trainer to receive a treat.

What is Graph?

Graph is a mathematical representation of a network and it describes the relationship between lines and points.

Given that  graph represents the distance of a dog from a trainer after a command is given.

A graph titled Dog Obedience School. The horizontal axis shows Time (seconds), numbered 1 to 10,

The vertical axis shows Distance (yards) numbered 4 to 40.

The line shows an increase, then decrease, then constant distance.

At the point on the graph where time is 5 seconds, the slope of the distance vs time curve is negative, indicating the dog is moving toward the trainer.

The motivation of the dog is unknown, so the above answer choice involves speculation that is not supported by the problem statement.

Hence, the statement dog was running towards the trainer to receive a treat.

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How and his friends bought stickers for $1.25 each and will mark them up 180%. What will they sell the tickets for?

Answers

Answer:$2.25x

Step-by-step explanation:

Lets use X to denote the amount of stickers How and his friends bought.  so he buys them at 1.25x.  An easy trick when doing percentages of a number is thinking of the percent as a fraction.  So instead of 180, think of 180/100.  Think of 1.25 as 125/100

multiply 180/100 by 125/100

you get 22500/10000 which equals 2.25

or 2.25x

PLEASE HELP
What is the approximate volume of the cone
Use 3.14 for TT.
57 cm3
339 cm3
509 cm3
1526 cm3

Answers

The volume of the Illustrated cone used as an example is 51.3cm³.

How to calculate the volume?

Volume is a measurement of three-dimensional space that is occupied. It is frequently expressed numerically using SI-derived units, as well as different imperial or US-standard units. Volume and the definition of length are related.

A cone is a recognizable three-dimensional geometric shape with a flat and curved surface that is pointed upward. The formula for the volume of a cone is V=1/3hπr²

Let's say the radius is 7cm. The volume will be:

= 1/3 × 3.14 × 7²

= 51.3cm³

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find the area of this triangle

Answers

Answer: a is about 7.416, rounding to two significant digits, 7.4, to one significant digit, 7.

Step-by-step explanation:

We will use the Pythagorean Theorem.

a²+b²=c²

c² is the longest side, so 8cm.

lets make the bottom side b², so 3cm

We are trying to find h, so let's make that a².

Applying the Theorem:

a²+3²=8²

--- a² + 9 = 64

subtract 9 from both sides.

-- a² = 55

Take the square root of both sides

a is about 7.416, rounding to two significant digits, 7.4, to one significant digit, 7.

Answer:

22.249 cm^2 (THIS IS ROUNDED)

Step-by-step explanation:

to find the area we first need to find h using Pythagorean theorem

a^2+b^2=c^2

We need to isolate a^2 on one side

a^2+b^2=c^2

     -b^2.   -b^2

a^2=c^2-b^2

a^2=8^2-3^2

a^2=64-9

a^2=55

√.      √

a=7.416

Now we multiply by 3 to find the area

7.416x3

About 22.249 cm^2

Hopes this helps

The formula in Ohm's Law is E = IR, where E represents voltage measured in volts, I represents current measured in amperes, and R represents resistance measure in ohms. Solve for R.

Answers

To solve for R in Ohm's Law, you can rearrange the formula to isolate R on one side of the equation. To solve for R, you can divide both sides of the equation by I:

R = E/I

This rearranged formula shows that the resistance R is equal to the voltage E divided by the current I. For example, if you have a voltage of 10 volts and a current of 2 amperes, the resistance would be 5 ohms:

R = 10 volts / 2 amperes = 5 ohms

Formulas

Let's prep ourselves before attempting to answer the question. What do we need to know?

We'll need to know a couple of basic concepts before we tackle the problem. Namely, we'll need these ones:

Equality Properties

What are equality properties? These are the equality properties:

Multiplication Property of EqualityDivision Property of EqualityAddition Property of EqualitySubtraction Property of Equality

Define

From the problem, we are given Ohm's Law, which is E = IR. The problem states that it wants to solve this equation for R.

Work

In order to solve Ohm's Law for R, we can use the Division Property of Equality. What does this property state? It states that if you divide something (number, variable, etc.) on one side, you must do the same for the other.

Now, let's apply this property to find our answer. We divide by I on both sides to isolate R:

[tex]\displaystyle\begin{aligned}E & = IR \\IR & = E \\\frac{IR}{I} & = \frac{E}{I} \\R & = \boxed{ \frac{E}{I} } \\\end{aligned}[/tex]

Answer

[tex]\displaystyle \boxed{ R = \frac{E}{I} }[/tex]

Hope this helped!

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Oliver bakes 10 cakes. Look at the table below.
Plot a scatter graph to represent the data.
Draw the line of best fit.
What type of correlation is shown? How are mass of a cake and cooking time related?

Answers

The graph of scatter point is attached below. The correlation is linear.

The mass of a cake and cooking time are related linearly.

What is scatter points?

A set of dots plotted on a horizontal and vertical axis is known as a scatter plot. Because they can demonstrate the degree of connection, if any, between the values of observed quantities or events, scatter plots are crucial in statistics (called variables).

Given points are (20,610), (30, 680), (20, 700), (50, 750), (40, 825), (30, 840), (50, 845), (75, 965), (45, 1000), (85, 1100).

Plot the points on the graph.

The line of best is a straight line.

Thus the correlation is linear type.

Also, the mass of a cake and cooking time are related linearly.

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fn is the nth Fibonacci number. show that fn+1fn−1 − f 2 n = (−1)n when n is a positive integer.

Answers

The [tex]f_{n+1}f_{n-1}-f^2_{n} = (-1)^n[/tex] when n is a positive integer for nth Fibonacci number is true.

What is Fibonacci number?

Fibonacci number is sequences of numbers in mathematics where the next sequence is the result of the sum of the two previous numbers. So we can written for Fibonacci number formula as,

[tex]f_{n}[/tex] = [tex]f_{n-1}+f_{n-2}[/tex].

Usually in mathematics the Fibonacci number is 0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, ... with 0 is the 0 order of Fibonacci number.

For the given equation, we can prove that with many ways. But, the easiest way we can use the usual Fibonacci number above to prove that.

We assume n = 3 so the number is 2.

[tex]f_{n+1}f_{n-1}-f^2_{n} = (-1)^n[/tex]

(3)(1) - (2^2) = (-1)^2

3 - 4 = -1

-1 = -1

We also can assume n = 5 so the number is 5.

[tex]f_{n+1}f_{n-1}-f^2_{n} = (-1)^n[/tex]

(8)(3)-(5^2) = (-1)^5

24 - 25 = -1

-1 = -1

Thus, the given equation is true.

You question is incomplete, but most probably your full question was

T/F. [tex]f_n[/tex] is the nth Fibonacci number. show that [tex]f_{n+1}f_{n-1}-f^2_{n} = (-1)^n[/tex] when n is a positive integer.

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for how many pairs of consecutive integers in {1000,1001,1002,...,2000} is no carrying required when the two integers are added?

Answers

156 pairs of consecutive integers in {1000,1001,1002,...,2000} is no carrying required when the two integers are added

You will need to consider four cases.

when _999 and _000 are the last three digits of consecutive numbers. Just possible cases are 1999, 2000

At the point when the last 2 digits of the continuous numbers are _ _ 9 9 and _ _ 0 0. 5 possible scenarios (corresponding to (0,1), (1,2), (2,3), (3,4), and (4,5) at the hundredth place) exist.

when the last digit of consecutive numbers is in the form ____ 9 and ____ 0. 5*5 = 25 possible scenarios.

when none fall into that category, possible case=. 5*5*5 = 125,

and the answer is 125+25+5+1 = 156.

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A 3-gallon container of laundry detergent cot $33. 60. What i the price per cup?

Answers

As per the unitary method, the price of the cup is $2.958

Unitary method in statistics is defined as in which the value of one article is first obtained to find out the value of any required articles

Here we have given that the 3-gallon container of laundry detergent cost $33. 60.

And we need to find the price per cup.

While we looking into the given question, we have identified the following details that cost of 3 gallon container of laundry detergent is $33.60.

So, the cost for 1 gallon container of laundry detergent cost,

=> 33.60/3

=> 11.20

Let us consider that the cup can hold 1 liter.

As we know that 1 gallon = 3.78541 liter.

Then the cost of 1 liter is calculated as,

=> 11.20/3.78541

=> 2.958

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help with my thing and get 16 point

Answers

I guess the answer is D and E

how much water should we add to 20kg of sea water to change its concentration from 2% to 3%

Answers

Answer: 10 kg

Step-by-step explanation:

3% = 0.03

First, take 20 times 0.03 = 0.6kg of salt

We know that the 2% solution of seawater

So, we take 100 times 0.6, then divide by 2 = 30kg

Then take 30 - 20 = 10kg

So, to make a solution from 3% to 2%, we have to add  10 kg of water with a 20 kg solution.

Write the following as an algebraic expression. Then simplify

The sum of three consecutive even integers is
330. Find the integers.

Answers

Answer:

  108, 110, 112

Step-by-step explanation:

You want three consecutive even integers whose sum is 330.

Expression

Let x represent the middle integer. Then the other two are (x-2) and (x+2). The expression for their sum is ...

  (x -2) +x +(x +2) = 330 . . . . . an algebraic expression

  3x = 330

  x = 110

  x -2 = 108

  x +2 = 112

The three integers are 108, 110, 112.

__

Additional comment

"Consecutive integer" problems are often worked easily by considering the average value of the integers. For three consecutive integers, their average is the middle one.

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a brick staircase has a total of 12 steps. the bottom step requires 100 bricks. each successive step requires 4 less bricks than the prior one. how many bricks are required to build the staircase.

Answers

a brick staircase has a total of number of 12 steps. the bottom step requires 100 bricks.A total of 246 bricks are required to build the staircase.

The total number of steps in the brick staircase is 12. The bottom step requires 100 bricks. Each successive step requires 4 less bricks than the prior one. Therefore, the number of bricks required to build the staircase can be calculated as follows:

The first step requires 100 bricks.

The second step requires 96 bricks (100 - 4 = 96).

The third step requires 92 bricks (96 - 4 = 92).

This pattern continues until all 12 steps are accounted for.

Adding the number of bricks required for each step gives a total of 246 bricks required to build the entire staircase.

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Find the measure of each angle indicated.

A. 111 degree
B. 69 degree

Help!!!

Answers

Answer: A. 111 degree

Step-by-step explanation:

Because they are Alternate Interior angles! Which means the two angles are congruent and have the same degree!

It would be A!
Because they are alternate interior angles and alternate interior angles will always have the same measures if they are on opposite sides from each other!

Find the measure of each angle indicated.

A. 127 degrees
B. 53 degrees

Help!!!

Answers

Answer:

B. 53 degrees

Step-by-step explanation:

Because the ?-angle is equal to the 53-degree angle. So, the answer is B. 53 degrees

61 Développer et réduire l'expression suivante.
B(x)=(x-1)² + x² + (x + 1)²
b. Déterminer trois entiers naturels consécutifs dont
la somme des carrés est 4 802.
Pour les
à l'aide
68 a.
c. 422-
69

Answers

Answer:

Step-by-step explanation:

iven, the equation is (x - 1)² + 2(x + 1) = 0. We have to determine if the equation has a real root. By using algebraic identity, (a - b)² = a² - 2ab + b² (x - 1)² = x² - 2x + 1.

How much power is needed to get up the stairs, if I can do this with 30 Joules of work in 3 seconds?

Answers

Answer:

10 Joules/second

Step-by-step explanation:

To find the power needed to get up the stairs, we need to divide the amount of work done (30 Joules) by the time it took to do the work (3 seconds):

Power = Work / Time

Power = 30 Joules / 3 seconds

Power = 10 Joules/second

Therefore, it takes 10 Joules/second of power to get up the stairs.

(1, 3)
(0, 3)
(1,4)
(0, 1)
y= 3x + 1,
y = x + 3
y = 3x + 1
y=x+3
5

Answers

Answer:

(1,4)

Step-by-step explanation:

both equations are equal to y so we set them equal

3x+1=x+3

-x.   -x

2x+1=3

  -1. -1

2x=2

/2. /2

x=1

3(1)+1=y

3+1=y

4=y

hopes this helps

Function A is represented by the equation y= 4x+6. Function B is a linear function that goes through the points shown in the table. 6 3 9 12 18 Which statement correctly compares the rates of change of the two functions? O A. The rate of change of function A is 6. The rate of change of function B is 3. OB. The rate of change of function A is 4. The rate of change of function B is 6. C. The rate of change of function A is 4. The rate of change of function B is 3. D. The rate of change of function A is 6. The rate of change of function B is 6.​

Answers

its D

. . . . . ... . . . . . . . . . . . .. . .

a local department store estimates that 10 percent of its customers return the merchandise they purchase. let the random variable r represent the number of returns for a random sample of 40 customers. assume that random variable r follows a binomial distribution. what is described by the value of (408)

Answers

The value of (408) is (0.1)8(0.9)32 for a local department store estimates that 10 percent of its customers return the merchandise they purchase.

The value of (408)(0.1)8(0.9)32 represents the probability of getting 8 returns out of a sample of 40 customers, given that the store estimates that 10% of customers return merchandise.

This probability is calculated using the binomial probability formula, which is used to calculate the probability of a specific number of successes (in this case, returns) in a certain number of trials (in this case, customer purchases), given a certain probability of success (in this case, the estimated probability of customers returning merchandise).

The value of (408)(0.1)8(0.9)32 ( 40 8 ) ( 0.1 ) 8 ( 0.9 ) 32 describes the probability of getting 8 returns out of 40 customers when the probability of a customer returning the merchandise they purchase is 0.1.

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Three glasses of milk and 2 snack bars have a total of 53 carbohydrates​ (carbs), and 2 glasses of milk and 3 snack bars have a total of 52 carbs. Determine how many carbs are in one glass of milk and in one snack bar

Answers

Answer:

1 Glass of milk has 11 Carbohydrates

1 snack bar has 10 Carbohydrates

Step-by-step explanation:

Let M represent a glass of milk and S represent a snack bar! So, we have equations that are

3M + 2S = 53 Carbs

2M + 3S = 52 Carbs

We time the first equation by -1.5 and get

-4.5M - 3S = -79.5 Carbs

2M + 3S = 52 Carbs

Now let's find the Milk carbs by adding both equations

-2.5M = -27.5 Carbs

M = 11 Carbs

Now put 11 in for M to find the Carbs for a snack bar.

2(11) + 3S = 52 Carbs

22 + 3S = 52 Carbs

3S = 30 Carbs

S = 10 Carbs

So, 1 Glass of milk has 11 Carbohydrates

      1 snack bar has 10 Carbohydrates

Make a system of equations:
m means carbs in glasses of milk
s means carbs in snack bars
3m + 2s = 53
2m + 3s = 52
Solve by elimination
I’m doing this: first multiply the top equation by -2 and the bottom by 3 (everything).
-6m - 4s = -106
6m + 9s = 156
Now add the equations: (ms cancel out)
5s = 50
Divide both sides by 5 to get a
s = 10
Now that you have s, substitute it for s in one of the equations (I’m doing the first equation)
3m + 2(10) = 53
3m + 20 = 53
Subtract 20 from both sides
3m = 33
Divide both sides by 3
m = 11
So now you have the carbs in a snack bar (s) and in a glass of milk (m).

The table shows data for orders of cheese. Multiply each number of pounds of cheese in the table below by its frequency.

Drag the tiles to complete the table. The first one is done as an example. Each tile may be used once, more than once, or not at all.

Answers

According to the information in the table, the weights in pounds would be: 1. 1 pound, 2. 6 pounds, 3. 6 pounds, 4. 3 pounds.

How to calculate the total pounds of cheese?

To calculate the total pounds of cheese we must follow the instruction of the statement. In this case, we must multiply the fractions by the frequency number to find the total weight in pounds of the cheese orders. Here are all the procedures:

A.

1/4 * 4 = 1

b.

3/4 * 8 = 6

c.

1 1/2 * 4 = 6

d.

1 1/2 * 2 = 3

According to the above, we can infer that the numbers that complete the table are: 1, 6, 6, and 3 respectively in each of the blank spaces from top to bottom.

Note: This question is incomplete because there is some information missing. Here is the complete information:

table:

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Jamyia wants to sell bracelets at a
craft fair for $12 each. The
materials for each bracelet cost
$3.50, and the table rental at the
fair costs $34 for the day. How
many bracesets must she sell for
her revenue to equal her expenses?
A 10
B 3
C 4
D 3.5

Answers

By solving a linear equation, it can be calculated that

Jamyia wants to sell 4 bracelets.

What is linear equation?

At first it is important to know about equation

Equation shows the equality between two algebraic expressions by connecting the two algebraic expressions by an equal to sign.

A one degree equation is known as linear equation.

Here, a linear equation needs to be solved

Let the number of bracelets Jamyia wants to sell be x

Cost of each bracelet = $12x

The materials for each bracelet cost $3.50, and the table rental at the

fair costs $34 for the day.

Her expense = $(34 + 3.5x)

By the problem,

The linear equation is

34 + 3.5x = 12x

12x - 3.5x = 34

8.5x = 34

x = [tex]\frac{34}{8.5}[/tex]

x = 4

Jamyia wants to sell 4 bracelets.

Option C is correct

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please help me solve this

Answers

Answer:

8+5x

Step-by-step explanation:

Perimeter = sum of the all sides of triangle

= 6+3x-4+2x + 6

= 8+5x

Answer:

5x + 8

Step-by-step explanation:

To find the perimeter, add up all the sides

6 + 3x-4 + 2x +6

Combine like terms

5x + 8

What is the average of 129 and 47?

Answers

Answer:

the average for 129 is 159 and the average for 47 is 49

Step-by-step explanation:

A rectangle with a length of (x+2) cm and a width of y cm has a perimeter of 37.5 cm. A second rectangle has twice the perimeter, with a length of (2x - 6.5) cm and a width of (x+2y) cm. Find the values of x and y.

Answers

Answer

x=10.5 , y=6.25

Step by Step ^

The solution is, the values of x and y is, x=10.5 , y=6.25.

What is perimeter?

A perimeter is a closed path that encompasses, surrounds, or outlines either a two dimensional shape or a one-dimensional length. The perimeter of a circle or an ellipse is called its circumference. Calculating the perimeter has several practical applications.

Perimeter refers to the total outside length of an object,

here, we have,

we know,

perimeter of rectangle is:

P = 2*( a+ b)

given that,

A rectangle with a length of (x+2) cm and a width of y cm has a perimeter of 37.5 cm.

i.e. we get,

2( x+2 + y ) = 37.5

or, 2x + 2y = 33.5 ........(1)

and, we have,

A second rectangle has twice the perimeter, with a length of (2x - 6.5) cm and a width of (x+2y) cm.

i.e. we have,

2( 2x - 6.5 + x + 2y ) = 75

or, 3x + 2y = 44.5 .....(2)

solving (1) & (2) , we get,

x=10.5 , y=6.25

Hence, The solution is, the values of x and y is, x=10.5 , y=6.25.

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tomas is thinking of a number. if he triples it and subtracts 13, the result is 305. of what number is tomas thinking of

Answers

Answer:

106

Step-by-step explanation:

(305+13)/3=106

Wright 4.17 * 10 ^ 3 In scientific notation please help​

Answers

4 thousand one hundred and seventy
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a. he is lamenting a life lost before it was completely lived. b. he is glorifying dying young when in one's prime. c. he is unable to accept the reality of the death. Write a program that will output the sum of two quadratic polynomials. Your program must do the following: 1. Define an abstract data type, Poly with three private data members a, b and c (type double) to represent the coefficients of a quadratic polynomial in the form: ax^2 + bx + c 2. Include a constructor in the Poly class to initialize all private data members with caller-supplied values (in addition to the default constructor!) 3. Overload the addition operator to return the sum of two Poly objects. 4. Overload the What are the criteria for classification? be sure to answer all parts. draw the products of the reaction of pentanoic acid with thionyl chloride. draw structure ... largest molecular weight draw structure ... medium molecular weight draw structure ... smallest molecular weight an electrical circuit refers to the combination of various electrical components that are connected together. group of answer choices true false 6. Choose an artifact from the cultural region. What is it? How was it used?Why was it important? What countries believe in Santa Claus? what is the size of angle ADCwhat is the size of angle ADB abnormality as blank refers to behavior considered abnormal if it produces a sense of distress, anxiety, or guilt in an individual or if it is harmful to others in some way. determine the location of the resultant force of the water acting on the vertical end wall of the pool where the depth is 2.5m Anode Cathode Ni Porous plug Ni2 A voltaic cell is made using nickel and silver electrodes immersed in 1.00 Msolutions of Ni2+ and Ag'.Use the table of standard electrode potentials in the appendix of your textbook to help you label the cell diagram. Part 2 (0.5 point) Feedback See Hi Determine the cell potential for the voltaic cell in Part I comprised of nickel and silver electrodes immersed in 1.00 Msolutions of Ni2+ and Agt. (Use the table of standard electrode potentials in the appendix of your textbook.) a certain heat engine does 9.5 kj of work and 8.50 kj heat transfer occurs to the environment in a cyclical process. (a) what was the heat transfer (in kj) into this engine? to be persons of reason informed by faith, we must seek information and wisdom from a variety of sources such as: to be persons of reason informed by faith, we must seek information and wisdom from a variety of sources such as: scripture, theology, natural law philosophy sensus fidelium, magisterium, empirical sciences both a and b none of the above The residents of a city voted on whether to raise property taxes. The ratio of yes votes to no votes was 4 to 7. If there were 3794 no votes, what was the total number of votes? policies that provide governments with economic controls should be evaluated on their , not on the basis of the promises of their supporters or the theories of economists. Research on African-American children adopted into economically well-off white homes during the first year of life suggests that the fraction of light that is transmitted through a 100 mm panel of pmma is 0.97. neglecting reflection at both surfaces, what is the absorption coefficient b of pmma? which of the following would not be a family as sociologists define the term? group of answer choices a married couple who maintain separate apartments on different sides of central park in new york city two men who enter a business partnership in which one runs a retail outlet while the other produces products to sell in it an unmarried couple who never have children and live in separate residences a lesbian couple who have a child using a sperm donor a couple who remarries and shares a household with children from their previous marriages except for in areas in which elections tend be uncontested for one party or the other, the role of precinct chair now involves being a(n) . a man 6 feet tall walks at a rate of 5 ft / sec away from a light that is 15 feet above the ground. when he is 10 feet from the base of the light, at what rate is the tip of his shadow moving?