Using matrix to solve this word problem.

Using Matrix To Solve This Word Problem.

Answers

Answer 1

Answer: the attachment wont load

Step-by-step explanation:


Related Questions

a pizza restaurant is located in a town with a population density of 1200 people per square mile. what delivery radius will allow the pizza restaurant to deliver to approximately 25,000 people?]

Answers

The delivery radius for a pizza restaurant in a town with a population density of 1200 people per square mile that wants to deliver to approximately 25,000 people is 2.6 miles.

To calculate the delivery radius, we can use the following formula:

Delivery radius = square root(population / density)

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In this case, the population is 25,000 and the density is 1200 people per square mile. So, the delivery radius is:

Delivery radius = square root(25,000 / 1200) = 2.6 miles

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This means that the pizza restaurant can deliver to approximately 25,000 people within a 2.6 mile radius of its location.

Here is another way to think about it. If we imagine a circle with a radius of 2.6 miles, then the area of that circle will be approximately 25,000 square miles. This means that the pizza restaurant can deliver to approximately 25,000 people within that circle.

It is important to note that this is just an estimate. The actual delivery radius may be slightly different depending on the terrain, traffic conditions, and other factors.

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0.355555555... as a fraction

Answers

Answer:

7111/2000...........

Simplify: 8.x • 2 • 2 • 2 •x • 8

Answers

Answer: 64x^2

Step-by-step explanation:

The answer is 384•x^2

Sketch the graph of a relation that’s is a function

Sketch the graph of a relation thats is a function

Answers

Answer:

See attached

Step-by-step explanation:

Refer to attachment

One relation is a linear function

Second one is a graph of non-functional relation

Sketch the graph of a relation thats is a function
Sketch the graph of a relation thats is a function

Answer:

below

Step-by-step explanation:

For the first graph, we can use a linear function as it means "straight" lines so when we use the vertical lines test, it passes it (shown below).

We can use a U shaped line so it when we use the vertical line test, it passes through two points to resemble its not a function (shown below).

Best of Luck!

Sketch the graph of a relation thats is a function
Sketch the graph of a relation thats is a function

which of the following best describes this graph?

which of the following best describes this graph?

Answers

Answer:

B. y=x^2 +7x +10

Step-by-step explanation:

HELP ASAP THIS IS SOMETHING DUE IN LESS THAN AN HOUR AND I HAVE OTHER PROBLEMS TO DO

HELP ASAP THIS IS SOMETHING DUE IN LESS THAN AN HOUR AND I HAVE OTHER PROBLEMS TO DO

Answers

Answer:

30 degrees

Step-by-step explanation:

Let Angle ABC be 2x, Angle EBC be 5x

\(angle \: dbc = 90 - 2x \\ angle \: dbc \: + angle \: ebc = 180 \\ 90 - 2x + 5x = 180 \\ 3x = 90 \\ x = 30 \\ \\ angle \: dbc = 90 - 60 \\ = 30\)

Use the elimination Method to solve the system of equations. Choose the correct ordered pair.

6x + 4y = 32
-6x+4y = 8

A: 4,2
B: 1,5
C: 0,8
D: 2,5

Answers

Answer:

D, 2; 5

Step-by-step explanation:

Sum the equations vertically to eliminate at least one variable.

You will obtain 8y = 40.

Divide both sides by 8. You will get y = 5.

Now we know the value or y. Substitute this value into the second equation (-6x+4y = 8). You will get -6x+(4×5) = 8. Multiply 4 and 5: -6x+20 = 8.

Solve for x by moving 20 to the other side and switching sign: -6x = 8-20.

So: -6x = -12 and therefore x = 2.

So now we know the value of x and y.

(x; y) = (2; 5)

If the temperature (T) is 10 K, what is the value of T⁴? (Remember, this is the same as T×T×T×T. )
a. 1
b. 10000
c. 4000
d. −1000

Answers

None of the provided answer choices accurately represents the value of T⁴ when T is 10 K. The correct value is 10⁸ K².

The value of T⁴ can be calculated by multiplying the temperature (T) by itself four times. In this case, the given temperature is 10 K. Let's perform the calculation step by step.

T⁴ = T × T × T × T

T⁴ = 10 K × 10 K × 10 K × 10 K

Now, let's calculate the value of T⁴.

T⁴ = 10,000 K × 10,000 K

T⁴ = 100,000,000 K²

To simplify further, we can rewrite 100,000,000 K² as 10⁸ K².

Therefore, the value of T⁴ is 10⁸ K².

Now let's consider the answer choices provided:

a. 1: The value of T⁴ is not equal to 1; it is much larger.

b. 10,000: The value of T⁴ is not equal to 10,000; it is much larger.

c. 4,000: The value of T⁴ is not equal to 4,000; it is much larger.

d. -1,000: The value of T⁴ is not equal to -1,000; it is a positive value.

In conclusion, the value of T⁴ when T is 10 K is 10⁸ K².

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you are using a within-subject design with 25 conditions. To obtain 20 measurements within each condition, how many participants will the researcher need to use

Answers

The researcher will need 25 participants to obtain 20 measurements within each of the 25 conditions in this within-subject design.

To determine the number of participants needed for a within-subject design with 25 conditions and 20 measurements within each condition, we need to consider the concept of counterbalancing. Counterbalancing involves systematically varying the order of conditions across participants to account for potential order effects.

In this case, each participant will need to complete all 25 conditions, with 20 measurements within each condition. Therefore, we can calculate the total number of measurements per participant:

Total measurements per participant = Number of conditions × Number of measurements per condition

Total measurements per participant = 25 × 20

Total measurements per participant = 500

To determine the number of participants needed, we divide the total number of measurements by the number of measurements per participant:

Number of participants = Total measurements / Measurements per participant

Number of participants = 500 / 20

Number of participants = 25

Therefore, the researcher will need 25 participants to obtain 20 measurements within each of the 25 conditions in this within-subject design.

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A wholesaler carries 6,600 different items in their store. In a normal week, demand occurs for 4,800 of these items. Of those 4,800 items, 250 are not available for the entire week and another 270 items are available for only part of the week What is the wholesaler's in-stock probability during a normal week? Note: Round your answer as a percentage rounded to 1 decimal place.

Answers

Rounded to 1 decimal place, the wholesaler's in-stock probability during a normal week is approximately 89.2%.

To calculate the wholesaler's in-stock probability during a normal week, we need to consider the number of items that are available for the entire week and divide it by the total demand.

Total demand = 4,800 items

Items not available for the entire week = 250 items

Items available for only part of the week = 270 items

Therefore, the number of items available for the entire week can be calculated as follows:

Items available for the entire week = Total demand - Items not available for the entire week - Items available for only part of the week

                                = 4,800 - 250 - 270

                                = 4,280 items

The in-stock probability can be calculated by dividing the number of items available for the entire week by the total demand and then multiplying by 100 to convert it to a percentage:

In-stock probability = (Items available for the entire week / Total demand) * 100

                   = (4,280 / 4,800) * 100

                   = 89.1666...

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Explain why x2 + 25 is not equal to (x + 5)2.

Answers

Step-by-step explanation:

Because in (x + 5)2 you have to multiply 2 by each term in the parentheses, and that is not equal to x2 + 25. itll be 2x + 10 and that is not equivalent.

x² + 25 is not equal to (x+5)² because the later has an extra term 10x in it.

What is a quadratic equation ?

A quadratic equation has a highest degree of 2 and it has two solutions or roots which satisfies ax² + bx + c = 0.

According to the given explain why x² + 25 and (x+5)² are not equal.

We know (a+b)² = a² + 2ab + b².

So, (x+5)² = x² + 10x + 25.

On the other hand x² + 25 can be written as x² + 5².

∴ (x+5)² x² + 5².

There is an extra term 10x in (x+5)² or we can say  x² + 25 is 10x less than (x+5)².

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Pls answer thissssssss

Pls answer thissssssss

Answers

Answer:

Area of room = 21 * 16

= 336 m²

Area of Carpet = (21 - 1)* (16-1)

= 20*15

= 300

Area of border = Area of room - Area of carpet

= 336 - 300

= 36 m².

What is the factored form of 24x^6 + 3?

Answers

This might help you out
What is the factored form of 24x^6 + 3?

What is the equation of the line of best fit for these data? Round the slopeand y-intercept of the line to three decimal places.хy12031451096164O A. y = -17.426x +0.974O B. y = 17.426x+0.974O C. y= 0.974x + 17.426D. y=-0.974x + 17.426

Answers

Given:

The x values are 1, 3, 5, 7, 9, 16.

The y values are 20, 14, 10, 6, 4.

The objective is to find the slope value and y intercept.

The general equation of a straight line is,

\(y=mx+b\)

Here, m represents the slope of the line and b represents the y intercept.

Consider two coordinates from the table as,

\(\begin{gathered} (x_1,y_1)=(1,20)_{} \\ (x_2,y_2)=(3,14) \end{gathered}\)

The value of slope can be calculated as,

if w varies jointly as x and y,
and w=10 when x=2 and y=1.
Solve for w when x=4 and y=2​

Answers

Given:

w varies jointly as x and y.

w=10 when x=2 and y=1.

To find:

The value of w when x=4 and y=2​.

Solution:

w varies jointly as x and y.

\(w\propto xy\)

\(w=kxy\)              ...(i)

Where, k is the constant of proportionality.

w=10 when x=2 and y=1.

\(10=k(2)(1)\)

\(10=2k\)

\(\dfrac{10}{2}=k\)

\(5=k\)

The value of k is 5.

Putting k=5 in (i), we get

\(w=5xy\)

To find the value of w when x=4 and y=2​. Put x=4 and y=2.

\(w=5(4)(2)\)

\(w=40\)

Therefore, the value of w is 40 when x=4 and y=2​.

In a lab experiment, the decay of a radioactive isotope is being observed. At the beginning of the first day of the experiment the mass of the substance was 1300 grams and mass was decreasing by 14% per day. Determine the mass of the radioactive sample at the beginning of the 9th day of the experiment. Round to the nearest tenth (if necessary).
PLEASE HELP. GOD BLESS

Answers

The mass of the radioactive sample at the beginning of the 9th day of the experiment is 334.5 grams.

How to determine the mass of the radioactive sample at the beginning of the 9th day of the experiment?

During exponential decay, a quantity falls slowly at first before rapidly decreasing. The exponential decay formula is used to calculate population decline and can also be used to calculate half-life.

Mass of the substance (m₀) = 1300 grams

Rate of decay (r) = 14% per day = 0.14, time(t) = 9

The equation for the exponential decay:

M = m₀(1 - r)^t

M =  1300(1 - 0.14)⁹

M = 334.5 grams

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Find the Fundamental Counting Principle, choosing from 3 sizes of bottled water and from distilled, filtered, or spring water.

Answers

The Fundamental Counting Principle, choosing from 3 sizes of bottled water and from distilled, filtered, or spring water is 9 ways.

What is fundamental counting principle?

The Basic Counting Principle is a technique used in mathematics, more especially in probability theory and combinatorics, to determine how many combinations of options, items, or outcomes are possible. The Rule of Multiplication, the Product Rule, the Multiplication Rule, and the Basic Counting Rule are some of its alternate names.

It has a connection to the Sum Rule, often known as the Rule of Sum, which is a fundamental counting method used to calculate probabilities.

According to the Basic Counting Principle, if a decision or event has a potential result or set of options, and a different decision or event has b possible outcomes or choices, then the sum of all the unique combinations of outcomes for the two is ab.

Using the fundamental counting principle, if an event occurs in m ways and another event occurs in n ways then the total occurrence is given as (m)(n).

Given that,

m = 3 for choosing between sizes.

n = 3 for distilled, filtered, or spring water.

Thus, the total number of occurrence is given as:

T = (3) (3) = 9

Hence, the Fundamental Counting Principle, choosing from 3 sizes of bottled water and from distilled, filtered, or spring water is 9 ways.

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A pack of sugar costs £1.25 for 500g. How much for 1kg?

Answers

Answer:

2.50 £

Step-by-step explanation:

A pack of sugar costs £1.25 for 500g. How much for 1kg?

500g = 1/2Kg or 0.5 Kg

so 1.25£ is 0.5Kg (1/2)

1.25 * 2 = 2.50£ is your answer

Answer:

2.5

Step-by-step explanation:

Change 500g into kg

500g=500/1000kg

        =0.5kg

If                  0.5kg cost 1.25

what about 1kg

   = (1*1.25)/0.5

   = 1.25/0.5

   =2.5


A dog kennel charges $40 for each night the dog stays in the kennel. Each day includes a 2 hour play time and
1 hour etiquette training. The kennel also charges a $10 bathing fee for a bath before the dog returns home.
Think of the linear function that demonstrates the cost of putting a dog in the kennel (c) in terms of the number
of nights (n)

Answers

Answer:

c=40n+10

Step-by-step explanation:

They charge 40$ per night from which we get 40n

The extra 10$ is from the bathing fee

The rest of the information they give us isn't useful in this case because they didn't ask us the cost per hour

I NEED AN ANSWER ASAP PLEASE

I NEED AN ANSWER ASAP PLEASE

Answers

Step-by-step explanation:

the correct answer is option a 6a-7

Se eu tenho 3 laranjas e como uma, quantas ficam?

Answers

Answer:

2 laranjas

Step-by-step explanation:

3 - 1 = 2

Horace is riding his bike on a bike path. Horace's bike got a flat tire 3/4 of the way down the path and he had to stop. How far did Horace ride

Answers

The distance travelled before developing a flat tire illustrates multiplication of fractions

Horace rode a distance of \(\frac {9}{16} mile\) before having a flat tire

The parameters are given as:

\(Length=\frac 34\ mile\) ----- The length of the path

\(d=\frac 34\) ---- fraction of distance traveled before having a flat tire

So, the actual distance (D) travelled is:

\(D=d \times Length\)

Substitute values for d and Length

\(D= \frac 34 \times \frac 34\ mile\)

Multiply fractions

\(D= \frac {3 \times 3}{4 \times 4} mile\)

\(D= \frac {9}{16} mile\)

Hence, Horace rode a distance of \(\frac {9}{16} mile\)

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Solve for x.
Question 12 options:

A)

12

B)

11

C)

13

D)

10

Solve for x.Question 12 options:A) 12 B) 11 C) 13 D) 10

Answers

Answer:

A

Step-by-step explanation:

You have to use intercept theorem, also known as Thales's theorem to slove

Solve for x.Question 12 options:A) 12 B) 11 C) 13 D) 10

3.Write an equation of best fit for the given data.

3.Write an equation of best fit for the given data.

Answers

To find the line of best fit we follow this steps:

1. Calculate the mean of the x -values and the mean of the y -values

\(\begin{gathered} \bar{X}=\frac{49.9+48.6+46.3+45.8+44.3+43.6}{8} \\ \\ \Rightarrow\bar{X}=34.8125 \end{gathered}\)\(\begin{gathered} \bar{Y}=\frac{177.5+174.6+165.6+164.7+165.3+164.6+155.8+156.7}{8} \\ \\ \Rightarrow\bar{Y}=165.6 \end{gathered}\)

2. The following formula gives the slope of the line of best fit:

\(\begin{gathered} m=\frac{\sum ^n_{i\mathop=1}(x_i-\bar{X})(y_i-\bar{Y})}{\sum ^n_{i\mathop{=}1}(x_i-\bar{X})^2} \\ \\ \end{gathered}\)

In our case, such computation will yield as a result:

\(undefined\)

Which figure has an area smaller than the one shown?

Which figure has an area smaller than the one shown?

Answers

Answer: The 4th option

Step-by-step explanation:

4 cm x 3cm is 12 cm. 2 cm x 5 cm is 10 cm.

Find the missing side. Round to the nearest tenth.
X
16
20

Find the missing side. Round to the nearest tenth.X1620

Answers

Answer:

x = 58.47

Step-by-step explanation:

Use SOH CAH TOA

Sin(16) = 20/x

x = 58.47

Use the dropdown menus and answer blanks below to prove the quadrilateral is a
rhombus.
L
I will prove that quadrilateral IJKL is a rhombus by demonstrating that
all sides are of equal measure
IJ =
JK=
KL=
LI=

Use the dropdown menus and answer blanks below to prove the quadrilateral is arhombus.LI will prove that

Answers

The measure of each length of the rhombus is K = IJ = KL = LI = 9.2 units.

What is the measure of side lengths of the rhombus?

The measure of each length of the rhombus is calculated by applying the following formula.

The distance between two points is given as;

d = √[ (x₂ - x₁)² + (y₂ - y₁)² ]

where;

x₁ and x₂ are points on x coordinatey₁ and y₂ are points on y coordinate

Considering length JK, the coordinate points are;

(x₁, y₁ ) = (0, 0 )

(x₂, y₂) = (9, - 2)

The distance between the two coordinate points of JK is calculated as;

JK = √ [ (9 - 0 )² + (-2 - 0)² ]

JK = √ (81 + 4)

JK = 9.2 units

Since all sides of rhombus are equal, JK = IJ = KL = LI = 9.2 units.

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Jessie set up a lemonade stand for three days.

• On Saturday, she sold 10 2⁄3 gallons of lemonade.
• On Sunday, she sold 3 1⁄3 gallons more than she sold on Saturday.
• On Monday, she sold 2 2⁄3 gallons less than she sold on Sunday.

How many gallons of lemonade did Jessie sell on Monday?

Answers

Answer: 11 1/3 gallons of lemonade

divide 405 in to the ratio 3:12
give answer in the form ... and ...

Answers

Answer:

81:324

Step-by-step explanation:

3+12=15

405 div 15 =27

3 times 27 = 81

12 times 27 = 324

81:324

An experiment is conducted with a coin. The results of the coin being flipped twice 200 times is shown in the table.


Outcome Frequency
Heads, Heads 75
Heads, Tails 40
Tails, Tails 35
Tails, Heads 50


What is the P(No Heads)?
85%
75%
37.5%
17.5%

Answers

The probability of no heads is given as follows:

P(No Heads) = 17.5%.

How to calculate a probability?

A probability is calculated as the division of the desired number of outcomes by the total number of outcomes in the context of a problem/experiment.

The total number of outcomes is given as follows:

200.

The desired outcomes, those without heads, are Tails, Tails, which happened 35 times, hence the probability is given as follows:

p = 35/200

p = 0.175

p = 17.5%.

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