PLEASE HELP!

For a group of objects made of the same material, the weight of an object varies directly with its volume. If an object that has a volume of 20 cubic inches weighs 28 ounces, what is the constant of variation?

20
5/7
7/5
28

Answers

Answer 1

The constant of variation that exists between the weight and the volume of the objects would be = 7/5. That is option C.

How to calculate the constant of variation?

A measurement is said to vary directly with another when the increase in proportion of the object leads to a direct decrease to the other one.

That is for the given object;

Weight is directly proportional to Volume

Therefore, weight = k Volume

K = constant of variation

make k the subject of formula;

k= weight/volume

but weight = 28

volume = 20

k = 28/20

= 7/5

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Related Questions

(-2-3)-(4-5)+ (−1+6)−(−9+8)=​

Answers

Answer:

Step-by-step explanation:

(-2-3)-(4-5)+ (−1+6)−(−9+8)

-5-4+5-1+6+9-8

-9+4+15-8

-5+7

2

(-5) - (-1) + (5) - (-1)
(-5) + (1) + (5) + (1)
(-4) + (6)
= 2

h(x) = 2x + 3

Complete the function table.

X. H(x)
-4
0
1
2
3

Answers

Answer:

X       H(x)=2x+3

-4       -5

0        3

1         5

2        7

3        9

The table shown below lists the U.S. presidents and their ages at inauguration. President Cleveland has two entries because he served two nonconsecutive terms.

Find the mean and the population standard deviation of the ages. Round each result to the nearest tenth.
mean
population standard deviation

Answers

The mean age of the U.S. presidents at inauguration is 54.7 years and the population standard deviation is approximately 5.7 years.

To find the mean and population standard deviation of the ages of the U.S. presidents at inauguration, we first need to calculate the sum of the ages and the number of presidents in the data set.

The sum of the ages is:

57 + 61 + 57 + 57 + 58 + 57 + 61 + 54 + 68 + 51 + 49 + 64 + 50 + 48 + 65 + 52 + 56 + 46 + 54 + 49 + 50 + 47 + 55 + 55 + 54 + 42 + 51 + 56 + 55 + 51 + 54 + 51 + 60 + 62 + 43 + 55 + 56 + 61 + 52 + 69 + 64 + 46 + 54 + 47 = 2,405

There are 44 presidents in the data set.

Therefore, the mean age is:

mean = sum of ages / number of presidents = 2,405 / 44 = 54.7

To find the population standard deviation, we first need to calculate the sum of the squared deviations from the mean:

(57 - 54.7)² + (61 - 54.7)² + ... + (47 - 54.7)² = 3,391.5

Then, we divide the sum of squared deviations by the number of presidents and take the square root:

population standard deviation = √(3,391.5 / 44) ≈ 5.7

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Question 12: The base and height of the rhombus are given. Apply a formula to find the area of the rhombus

Answers

Answer: The formula to find the area of a rhombus is b • h, which is simply base (b) times the height (h). In this case, the base is 10 1/2 in. and the height is 10 inches. So, you can then multiply the two numbers together. Eventually, you’ll end up with the answer 105 in^2. In other words, it would be 105 inches squared. Hope that helps!

The first three terms of a geometric sequence are as follows.
810, 270, 90
Find the next two terms of this sequence.

Answers

Answer:

30 and 10

Step-by-step explanation:

Main concepts:

Concept 1.  Geometric Sequence

Concept 2. Common ratio

Concept 3. Finding the next terms

Concept 1.  Geometric Sequence

Geometric sequences are a specific type of sequence with a pattern where a specific number is multiplied to each term to get the next term.

For instance, a completely different geometric sequence 1,2,4,8,16,... is geometric because you multiply any term by 2 to get the next term.

Concept 2. Common ratio

In a geometric sequence, this number that you can multiply by to get the next term (in the "1,2,4,8,16,..." example, the number 2) is called the common ratio because taking the ratio of two sequential terms of the sequence (dividing two terms in a row) always gives the same answer:

2/1 = 24/2 = 28/4 = 216/8 = 2

This process of finding ratios will yield a common ratio only if the sequence is a Geometric Sequence.

Concept 3. Finding the next terms

Since we're told that the sequence we're given in the question is a Geometric sequence, it must have a common ratio (otherwise, it wouldn't be a geometric sequence).

Find the common ratio by dividing sequential terms:

270/810 = 1/3

90/270 = 1/3

So, for the sequence in the question, the common ratio is 1/3.  Each term is multiplied by 1/3 to get the next term in the sequence.  (This is equivalent to dividing each term by 3 to get the next term in the sequence, if you prefer division and/or to avoid fractions)

So, to get the next two terms in the sequence, multiply by the common ratio:

90 * 1/3 = 30

30 * 1/3 = 10

So, the next two terms of the sequence are 30 and 10

ACTIVITY 2: Simplify the following.

Answers

The index forms are simplified to;

1. [tex]5^6^\sqrt{2}[/tex]

2.[tex]3^5\sqrt{3}[/tex]

3.  [tex]2^2^\sqrt{25}[/tex]

How to simply the index forms

It is important to note the following about the rules of index forms;

Add the exponents when multiplying index forms of like basesSubtract the exponents when dividing index forms of like basesExponents of unlike bases cannot be add or subtracted.

From the information given, we have that;

[tex]5^\sqrt{2}[/tex] × [tex]5^\sqrt{50}[/tex]

Add the exponents, we have;

[tex]5^\sqrt{2} ^+ 5\sqrt{2}[/tex]

Then, we have;

[tex]5^6^\sqrt{2}[/tex]

2. [tex]3\sqrt{12}[/tex] × [tex]3^\sqrt{27}[/tex]

We have;

[tex]3^2^\sqrt{3} + 3\sqrt{3}[/tex]

Add the exponents

[tex]3^5\sqrt{3}[/tex]

3. [tex]2^2^\sqrt{25}[/tex]

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Can you please help me with this?

Answers

The triangles represented in the picture attached are acute, obtuse, acute and right triangles respectively.

Understanding different types of triangles

Acute Triangle is a triangle in which each of the three angles are less than 90°.

In fact all angles in an acute triangle are can be equal and sum to 180°.

Right Triangle is a triangle in which one of the angles is exactly 90°, often denoted as a "square corner".

The side opposite the right angle is called the hypotenuse and it is the longest side.

Obtuse Triangle is a triangle in which one of the angles is greater than 90°.

In other words, one of the angles in an obtuse triangle is "blunt" or greater than a right angle.

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Look at the box plot shown below. What is the minimum value of the data set?

A box plot labeled Volunteer Service Hours with the beginning of quartile 1 at 13, the beginning of quartile 2 at 16.5, the beginning of quartile 3 at 20, the beginning of quartile 4 at 23, and the end of quartile 4 at 27.

Answers

The minimum value of the data set is 10.5.

Box plots are an effective graphical tool used to display a summary of a dataset. They provide a visual representation of the minimum and maximum values, quartiles, and outliers of the data. They are commonly used in statistics and can provide valuable insights into a dataset.

Now, let's consider the box plot in question. The box plot is labeled "Volunteer Service Hours" and it has four quartiles, each marked by a horizontal line. The first quartile (Q1) is marked at 13, the second quartile (Q2) is marked at 16.5, the third quartile (Q3) is marked at 20, and the fourth quartile (Q4) is marked at 23, with the end of the box extending to 27.

The minimum value of the data set can be found at the lower whisker of the box plot.

The lower whisker represents the minimum value that is not an outlier.

In this box plot, we do not see any outliers, so the minimum value of the dataset is represented by the lower end of the whisker, which is located at 10.5.

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A triangle has side lengths of (6.1w + 7.8) centimeters, (1.4w + 8.1) centimeters
and (8.7x + 2.5) centimeters. Which expression represents the perimeter, in
centimeters,
of the triangle?

Answers

The expression that represents the perimeter of the triangle is 18.4 + 8.7x + 7.5w.

The perimeter of a triangle is the sum of the lengths of its sides. Using the given expressions for the side lengths of the triangle, we can write the perimeter as:

(6.1w + 7.8) + (1.4w + 8.1) + (8.7x + 2.5)

Simplifying and combining like terms, we get:

7.5w + 11.2x + 18.4

Therefore, the expression that represents the perimeter of the triangle is 18.4 + 8.7x + 7.5w.

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Nevaeh works in a department store selling clothing. She makes a guaranteed salary of $300 per week, but is paid a commission on top of her base salary equal to 20% of her total sales for the week. How much would Nevaeh make in a week in which she made $1975 in sales? How much would Nevaeh make in a week if she made x dollars in sales?

Answers

a) When Nevaeh makes $1,975 in sales for the week, her total earnings, based on her base salary and sales commission rate, are $695.

b) When she makes x in sales for the week, her total earnings are represented by the equation, y = 300 + 0.2x.

How the total earnings are computed:

The total earnings for the week can be determined using the equation y = 300 + 0.2x, where x represents her total sales for the week while 0.2 represents a 20% sales commission.

The base salary, in this situation, is $300.

Guaranteed (base) salary per week = $300

Sales commission = 20% of sales

Sales for the week = $1,975

a) Total earnings = $695 ($300 + $1,975 x 20%)

Sales for the week = x

b) Total earnings, y = $300 + 0.2x ($300 + 0.2x)

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Colin put some buttons on a table. There were 4 blue buttons, 5 red buttons, 7 tan buttons, and 8 white buttons.

Colin's cat jumped up and knocked 2 buttons onto the floor. What is the probability that the button on the floor was blue or red? Show or explain your work to justify your answer.

Answers

There are 4 + 5 + 7 + 8 = 24 buttons in total.

After the cat knocks 2 buttons onto the floor, there are 22 buttons remaining on the table. The probability that the first button knocked onto the floor is blue or red can be calculated as follows:

P(blue or red) = P(blue) + P(red)

P(blue or red) = 4/24 + 5/24

P(blue or red) = 9/24

P(blue or red) = 3/8

Therefore, the probability that the button on the floor was blue or red is 3/8 or 0.375.Answer:

Step-by-step explanation:

What is the unknown value that makes this statement true:
25% of _ is 30

Answers

Answer:

120

Step-by-step explanation:

25% is equal to 1/4. If you divide 30 by 1/4 you get 120. To check this, if you multiply 120 by 1/4 you get 30.

Answer: 120

Step-by-step explanation:

In order to find the missing value, divide the provided value by the percentage as follows:

30 / 0.25 = 120

This can be double-checked by plugging the number into the statement afterwards: 25% of 120 is 30, which is true

find the inverse given T(y)=6.056y+601.39

Answers

Answer:

5 (100y -601.39)

3028

Step-by-step explanation:

Factor the expression. x^2-12x-45

Answers

Answer:

(x + 3)(x - 15)

Step-by-step explanation:

To factor the expression x^2 - 12x - 45, we need to find two numbers that multiply to -45 and add to -12. Let's use the method of decomposition to find these two numbers:

x^2 - 12x - 45

We need to find two numbers that multiply to -45 and add to -12. Let's try -15 and 3:

x^2 - 12x - 45 = x^2 - 15x + 3x - 45

Now we can group the first two terms and the last two terms:

x^2 - 15x + 3x - 45 = x(x - 15) + 3(x - 15)

We can see that both terms have a common factor of (x - 15), so we can factor this out:

x(x - 15) + 3(x - 15) = (x + 3)(x - 15)

Therefore, the expression x^2 - 12x - 45 can be factored as (x + 3)(x - 15).

Refer to the attachment ^-^

Hope Helpful ~

could someone help me on this (have to turn it in by tomorrow)

Answers

Among the given options, V [tex]57^\circ[/tex]   is the closest estimate for the measure of the other acute angle.

What is the measure of the other acute angle?

To find the measure of the other acute angle, we can use the fact that the sum of the angles of a triangle is 180°. Let x be the measure of the other acute angle. Then we have:

[tex]x + 32.9^\circ + 90^\circ = 180^\circ[/tex]

Simplifying the equation, we get:

[tex]x = 180^\circ - 32.9^\circ - 90^\circ[/tex]

[tex]x = 57.1^\circ[/tex]

So the exact measure of the other acute angle is [tex]57.1^\circ.[/tex]

Therefore, Among the given options, V [tex]57.1^\circ.[/tex] is the closest estimate for the measure of the other acute angle.

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Passersby have taken 4 pieces of vanilla cake and 6 pieces of coconut cake from a sample tray. Based on past data, of the next 30 samples taken, how many should you expect to be pieces of vanilla cake?

Answers

Answer: The answer is actually 12 pieces of vanilla cake.

A radioactive isotope has a half-life of 1,920 years. Let f(t)
be the amount of isotope, in milligrams, that is present after t years. If the sample originally contained 21 milligrams, write an equation modeling this situation.
F(t)=

Answers

The equation that models the given situation is: f(t) = 21e^(-0.000361)t

How to solve an exponential decay function?

We can model this situation with an exponential decay function.

f(t) = Pe^(rt)

Where:

f(t) = amount of isotope

P = starting amount

r = growth rate

t = time

Let's assume that there is 1 mg of our isotope. Thus,in 1920 years, we will have 1/2 mg. Thus:

(1/2) = (1)e^(1920r)

Take the natural log of both sides to bring the exponent down and to cancel out the e

ln(1/2) = ln(e^(r(1920))

ln(1/2) = r(1920)

ln(1/2)/1920 = r

r = -0000361

Thus, we have:

f(t) = Pe^(-0.000361)t

Plug in 21 for P to get:

f(t) = 21e^(-0.000361)t

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What is the answer to the equation?
-4(3/2x - 1/2)= -15

A. X= -19/6

B. X= - 29/4

C. X= 13/6

D. X= 17/6

Answers

Answer:

D

Step-by-step explanation:

- 4( [tex]\frac{3}{2}[/tex] x - [tex]\frac{1}{2}[/tex] ) = - 15 ← distribute parenthesis by - 4

- 6x + 2 = - 15 ( subtract 2 from both sides )

- 6x = - 17 ( divide both sides by - 6 )

x = [tex]\frac{-17}{6}[/tex] , that is

x = [tex]\frac{17}{6}[/tex]

Ashley bought 2 CDs that were each the same price. Including sales tax, she paid a total of $31.40 . Each CD had a tax of $0.80. What was the price of each CD before tax?

Answers

Answer:

Each CD cost $14.90 before tax.

Step-by-step explanation:

Let's call the price of each CD before tax "x".

We know that Ashley bought 2 CDs, so the total cost before tax would be 2x.

We also know that the sales tax on each CD was $0.80, so the total sales tax for both CDs would be 2(0.80) = $1.60.

So the total cost including tax would be:

2x + 1.60 = 31.40

To solve for x, we can start by subtracting 1.60 from both sides:

2x = 29.80

Then, we can divide both sides by 2 to solve for x:

x = 14.90

Each CD cost $14.90 before tax.

Help Please The sum of two even numbers is even. The sum of 6 and another number is even. What conjecture can you make about the other number?
A) The other number is odd.
B) The number is even.
C) Not enough information.
D) The number is 8.

Answers

The conjecture that can be made about the other number is option A: the other number is odd.

Let's assume that the two even numbers are x and y. Then, we can write their sum as x + y = 2a, where a is some even number.

Now, let's consider the sum of 6 and another number, which we can represent as 6 + z, where z is some unknown number. If this sum is even, then we can write it as 2b, where b is some even number.

So, we have the equations:

x + y = 2a (since the sum of two even numbers is even)

6 + z = 2b (since the sum of 6 and another number is even)

We can subtract 6 from both sides of the second equation to get:

z = 2b - 6

Now, we can substitute this expression for z into the first equation:

x + y = 2a

And we get:

x + y + z - 2z = 2a

x + (y + z) - 2z = 2a

x + (2b - 6) - 2z = 2a

x + 2b - 2z - 6 = 2a

This equation tells us that x + 2b - 2z - 6 is an even number (since 2a is even). Since x and 2b are even, the expression -2z - 6 must also be even. Therefore, -2z must be even. This means that z is odd (since an even number minus an even number is even, and -6 is even).

So, we can conclude that the other number (z) is odd. Option A is the correct answer.

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Can someone help me with this please

Answers

The measure of x is 36.

We have,

The angle opposite to equal sides is equal.

And,

The sum of the triangle.

27 + 90 + (x + 27)= 180

27 + 90 + x + 27 = 180

x = 180 - 144

x = 36

Thus,

The measure of x is 36.

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pls answer asap

A traveler has 9 pieces of luggage.

How many ways can the traveler select 3 pieces of luggage for a trip?

Responses

84

84

504

504

60,480

60,480

362,880

Answers

Answer:

84

Step-by-step explanation:

Trust me

Answer:

84

Step-by-step explanation:

There are 9 pieces of luggage.

We can select the first piece 9 different ways, the second piece 8 different ways, since there are only 8 pieces left.  The third piece can be selected 7 different ways.

9*8*7

504

But order doesn't matter since we are taking 3 pieces.

Divide by (3*2*1)

504/6 = 84

There are 84 different combinations of luggage

2. If 15% of the first digit equals 21% of the second digit, then what percentage of the second digit equals 25% of the first digit?

Answers

Answer:

35%

(I replaced the 1st digit by a and the second digit by b)

In the diagram above, the sine of angle ACB = 3/5. What is the sine of angle ANM?

Answers

The sine of the angle ANM is equal to 3/5 as the triangles are similar.

How to calculate for the sine of angle ANM in the triangle.

Given that the sine of angle ACB is equal to 3/5, line MN is parallel to BC and MN is midsegment of triangle ABC which implies that the triangles ABC and ANM are similar so;

sine ANM = 3/2 ÷ 5/2

sine ANM = 3/2 × 2/5

sine ANM = 3/5.

Therefore, the sine of the angle ANM is equal to 3/5 as the triangles are similar.

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What is the probability that
both events will occur?
First, find the probability of event A.
Two dice are rolled.
Event A: The first die is a 4 or less.
Event B: The second die is even.

Answers

The probability that both events A and B will occur is 1/3 or approximately 0.3333.

To find the probability of both events A and B occurring, we need to calculate the individual probabilities of each event and then multiply them together.

Event A: The first die is a 4 or less.

In a standard six-sided die, there are four outcomes (1, 2, 3, 4) that satisfy this condition. Out of the six possible outcomes, four are favorable, so the probability of event A is 4/6 or 2/3.

Event B: The second die is even.

In a standard six-sided die, there are three even outcomes (2, 4, 6) out of the six possible outcomes.

Therefore, the probability of event B is 3/6 or 1/2.

To find the probability of both events occurring, we multiply the probabilities of each event:

[tex]P(A and B) = P(A) \times P(B) = (2/3) \times (1/2) = 1/3[/tex]

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Which expression is equivalent to (4.3x + 4)(−1.8x)?
A. −4.14x2 + 0.08x
B. −7.74x2 − 7.2
C. −7.74x2 − 7.2x
D. −7.74x2 + 7.2x

Answers

The expression that is equivalent to (4.3x + 4)(−1.8x) is -7.74x² -7.2x (optionC)

What is equivalent of expression?

Equivalent expressions are expressions that work the same even though they look different. If two algebraic expressions are equivalent, then the two expressions have the same value.

For example, 2a+6 is equivalent to 2(a+3) and will surely have thesame value when a value is substituted for a.

Similar (4.3x + 4)(−1.8x) can be simplified by multiplying -1.8x with both 4.3x and 4

= -7.74x²-7.2x

therefore the equivalent of (4.3x + 4)(−1.8x) is -7.74x²-7.2x.

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Solve for x. Round to the nearest tenth, if necessary.

Answers

8.69 is the length of the right angle.

Let's call the length you are trying to find x.

Using trigonometry, we know that:

cos(75) = x/9

Solving for x:

x = 9sin(75)

The sine function (sin) is a mathematical function commonly used in trigonometry. It relates the ratio of the length of the side opposite an angle in a right triangle to the length of the hypotenuse.

Using a calculator to find the cosine of 75 degrees:

x ≈ 8.69

Therefore, the length you are trying to find is approximately 8.69.

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In order to save the world. Monnor must find the square of the sum of the roots of the equation: x^2-7x+5=0. What is the answer to Monnor's problem?

Answers

The answer to Monnor's problem is NOTA

How to find the answer to Monnor's problem?

For any quadratic equation of the form ax² + bx + c, the sum of roots is given by:

sum of roots = -b/a

In this case, x² - 7x + 5 = 0. Where a = 1 and b = -7. Thus:

sum of roots = -(-7)/1 = 7

Since Monnor must find the square of the sum of the roots of the equation, we have:

square of the sum of the roots = 7² = 49

Thus, the answer to Monnor's problem is NOTA

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Let H: X – Y be a mapping. The set Y is called the

Answers

Let H: X – Y be a mapping. The set Y is called the codomain of the mapping H: X – Y.

In mathematics, a mapping or function H: X – Y is a relation between two sets, where the set X is called the domain and the set Y is called the codomain.

The mapping H assigns each element in X to a unique element in Y. The codomain of the mapping H is the set Y, which contains all the possible outputs that can be obtained from the mapping.

It represents the range of the mapping H and provides a reference set for the outputs of the function. The actual range of the function may be smaller than the codomain, depending on the elements in X that are mapped to.

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Sketch the graph of the following function. Describe how
the graph can be obtained from the graph of the basic
exponential function ex.
f(x) = 2 (4-ex)
Use the graphing tool to graph the equation.

someone help pls, im not sure what to put in the little box for the vertical shift and vertical shrink

Answers

The vertical shift and vertical shrink of the exponential function are 2 and 1/2 respectively and the graph of the function is attached below

What is the graph of exponential function?

A curve displaying an exponential function is known as an exponential graph. A curve with a horizontal asymptote and a rising or decreasing slope characterizes the graph of an exponential function. i.e., it begins as a horizontal line, grows or drops gradually, and then the growth or decay accelerates.

The vertical shift and vertical shrink of the function f(x) = 1/2(4 - eˣ) are 2 and 1/2

The vertical shift = 2

vertical shrink = 1/2

Kindly find the attached graph below

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Find a pair of integers whose difference gives zero. A)8 and 1 B)8 and 2 C)8 and 3 D)-8 and -8 A box of tissues is shaped like a rectangular prism and has a volume of 288 cubic inches. A uniform, 6 m long and 600-N beam, rests on two supports, as shown. The force exerted onthe b eam by the right support B is closest to: Which definition describes a scientific theory?OA. A claim, assumption, or method that is commonly thought to bebased on science but is not scientificB. The pursuit of knowledge about the natural world and theapplication of that knowledgeC. An explanation for a natural phenomenon that is based on factsand is supported by the results of many experimentsD. A method of carefully examining an idea, using a variety ofthought processes to construct and evaluate knowledge Calculate how many formula units of sodium hydroxide are present in 16. 0g of NaOH. From your answer, deduce how many sodium ions (Na') and hydroxide ions (OH) are present in this mass of sodium hydroxideuhhhh guys pls help Your received information that your brother was involved in a fight.write a letter to him to be patient and tolerant What baked good is a good friday tradition in england. Pleasee helpf(x) = 3x - 7x + 4f(2)= [?] Four point masses 2kg, 4kg, 6kg and 8kg are placed at the corners of Square ABCD of 2cm long respectively. Find the Position of centre of mass of the system from the corner A. help pls. my mom is mad bc i dont have this done. Find the value of 11 3/8 -7/8 Gas in a balloon occupies 2. 5 L at 300 K. At what temperature will the balloon expand to 7. 5 L? Using the following balanced equation, how many moles of NaCl can be produced from 0.314 moles of Na3PO4?equation : 3 FeCl2 + 2 Na3PO4 6 NaCl + Fe3(PO4)2 A large pizza business makes pizzas and sells them. The pizzas are manufactured and kept in cold storage for not more than two weeks. The business is split into a number of functional units. There is Production Control, Manufacturing, Stores, Accounts, Sales, Shipping and Purchasing. Production Control are responsible for organising which pizzas to produce in what order and in what quantity. They need to schedule the production of the pizzas according to the current and expected sales orders together with the number of pizzas already in Stores. Manufacturing take the raw materials from the Stores and manufacture pizzas returning the completed goods to the Stores. Accounts deal with the payments for the pizzas when delivered to the customer and the payment to the suppliers of the raw materials. Sales deal with customer orders whilst Purchasing organise the buying of raw material from suppliers. Shipping manage the packing and delivery of the goods to the customer with a delivery note. When a sales order is received by sales they record what is being ordered and by whom. They also record the details of the expected date of delivery. Production Control access this information and make sure that, if required, pizzas are produced by Manufacturing and are ready in Stores for when the delivery needs to be made. After the delivery is made Accounts make sure that the customer receives an invoice and that payment for the invoice is received at which time a receipt is issued. Purchasing look at the current stock of raw materials and by using current stock levels, supplier turn around times and quantity to be ordered decide what needs to be ordered on a daily basis. Their aim is never to run out of an ingredient but to minimise the amount of raw material kept in stock. Im which layer o the atmosphere would you find the international space station Assuming that the daily wages forworkers in a particular industryaverages Birr 11. 90 per day and thestandard deviation is Birr 0. 40. If thewages are assumed to be normallydistributed, determine what percentageof workers receive wagesA. Between Birr 10. 90 and Birr 11. 90B. Between Birr 10. 80 and Birr 12. 40C. Between Birr 12. 20 and Birr 13. 10D. Less than Birr 11. 00E. More than Birr 12. 95 If my refrigerator uses 300 watts when the motor is running, and the motor runs for 30 minutes of every hour, then how much energy does it use per day? How many BTU of energy would that be equal to? Stalactites-the long, icicle-like formations that hang from the ceilings of caves-are formed from recrystallizing minerals such as calcite (calcium carbonate). The Ksp of calcium carbonate is 4. 5 x 10-9. What is the concentration of a saturated calcium carbonate Big data sets, when compared with most databases and data warehouses: group of answer choices have more metadata have higher possibility of different interpretations need less explorative and experimental approaches to yield value are not as likely to benefit from visualization have equal amount of metadata? How many electron domains does CO have?