If p and q are real numbers in the function f(x)=x4+5x3+px2+qx+30 and f(1)=0, which equation is true?

Answers

Answer 1

p + q + 36 = 0 is the equation that is true. From this equation, we can say that p + q = -36.

If we substitute x = 1 in the given function, we get:

f(1) = [tex](1)^4 + 5(1)^3 + p(1)^2 + q(1) + 30[/tex]

= 1 + 5 + p + q + 30

= p + q + 36

We are given that f(1) = 0. Therefore, we have:

p + q + 36 = 0

This is the equation that is true. From this equation, we can say that p + q = -36.

Now, let's see why this is the case. When we substitute x = 1 in the given function and get f(1) = 0, it means that (1, 0) is a point on the graph of the function. This point lies on the x-axis, which means that the function intersects the x-axis at x = 1. Since the x-axis is the line y = 0, this means that f(x) = 0 when x = 1.

Using this information, we can write an equation in terms of p and q. If we substitute x = 1 in the given function and get f(1) = 0, it means that:

f(x) = [tex](x - 1)(x^3 + 6x^2 + (6+p)x + (30-q))[/tex]

Therefore, we have:

[tex](x - 1)(x^3 + 6x^2 + (6+p)x + (30-q)) = 0[/tex]

Since (1,0) is a point on the graph of the function, we know that x = 1 is a root of this equation. Therefore, we have:

[tex](x - 1)(x^3 + 6x^2 + (6+p)x + (30-q)) = (x - 1)(x^2 + (7+p)x + (36-p-q))[/tex]

We know that (x - 1) is a factor of this equation, so we can use polynomial long division to divide the expression [tex](x^2 + (7+p)x + (36-p-q))[/tex] by (x - 1). The quotient will give us the other two roots of the equation. However, we do not need to find these roots to answer the question. All we need to know is that p + q = -36.

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Related Questions

Neptune is approximately 5 x 10^4 kilometers in diameter. Mars is approximately 7 x 10^3 kilometers in diameter. Which is an accurate comparison of the diameters of these two planets? A. The diameter of Neptune is more than 7 times greater than the diameter of Mars. B. The diameter of Mars is more than 7 times greater than the diameter of Neptune. C. The diameter of Neptune is about 1. 4 times greater than the diameter of Mars. D. The diameter of Mars is about 1. 4 times greater than the diameter of Neptune. ​

Answers

The accurate comparison of diameters of the given planets is 7, under the given condition that Neptune is  5 x 10⁴ kilometers in diameter. Mars is  7 x 10³ kilometers in diameter.

Therefore the correct answer for the given question is Option A

The diameter of Neptune is approximately counted to be  50,000km while the diameter of Mars is approximately  counted to be 7,000 km.

The ratio of the diameters of Neptune and Mars is given as:

diameter of Neptune / diameter of Mars

= 50,000km / 7,000km

= 7.14

≈ 7 times

The  Neptune diameter is 7 times greater Mars  diameter.

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The complete question is

Neptune is approximately 5 x 10⁴ kilometers in diameter. Mars is approximately 7 x 10³ kilometers in diameter. Which is an accurate comparison of the diameters of these two planets?

A. The diameter of Neptune is more than 7 times greater than the diameter of Mars.

B. The diameter of Mars is more than 7 times greater than the diameter of Neptune.

C. The diameter of Neptune is about 1.4 times greater than the diameter of Mars.

D. The diameter of Mars is about 1.4 times greater than the diameter of Neptune. ​

Assuming that the daily wages for
workers in a particular industry
averages Birr 11. 90 per day and the
standard deviation is Birr 0. 40. If the
wages are assumed to be normally
distributed, determine what percentage
of workers receive wages
A. Between Birr 10. 90 and Birr 11. 90
B. Between Birr 10. 80 and Birr 12. 40
C. Between Birr 12. 20 and Birr 13. 10
D. Less than Birr 11. 00
E. More than Birr 12. 95​

Answers

Using statistics, we can calculate the following percentages:

A. The percentage of workers who receive wages between Birr 10.90 and Birr 11.90 is approximately 49.38%.

B. The percentage of workers who receive wages between Birr 10.80 and Birr 12.40 is approximately 89.15%.

C. The percentage of workers who receive wages between Birr 12.20 and Birr 13.10 is approximately 22.53%.

D. The percentage of workers who receive wages less than Birr 11.00 is approximately 1.22%.

E. The percentage of workers who receive wages more than Birr 12.95 is approximately 0.47%.

These percentages are obtained by calculating the areas under the normal distribution curve using z-scores and the standard normal distribution table.

We are given that the daily wages in a particular industry are normally distributed with a mean of Birr 11.90 and a standard deviation of Birr 0.40.

A. To find the percentage of workers who receive wages between Birr 10.90 and Birr 11.90, we need to calculate the z-scores for both values and use the standard normal distribution table.

z1 = (10.90 - 11.90) / 0.40 = -2.50

z2 = (11.90 - 11.90) / 0.40 = 0

From the standard normal distribution table, the area to the left of z = -2.50 is 0.0062, and the area to the left of z = 0 is 0.5000. Therefore, the percentage of workers who receive wages between Birr 10.90 and Birr 11.90 is:

0.5000 - 0.0062 = 0.4938, or approximately 49.38%.

B. To find the percentage of workers who receive wages between Birr 10.80 and Birr 12.40, we need to calculate the z-scores for both values.

z1 = (10.80 - 11.90) / 0.40 = -2.75

z2 = (12.40 - 11.90) / 0.40 = 1.25

From the standard normal distribution table, the area to the left of z = -2.75 is 0.0029, and the area to the left of z = 1.25 is 0.8944.

Therefore, the percentage of workers who receive wages between Birr 10.80 and Birr 12.40 is:

0.8944 - 0.0029 = 0.8915, or approximately 89.15%.

C. To find the percentage of workers who receive wages between Birr 12.20 and Birr 13.10, we need to calculate the z-scores for both values.

z1 = (12.20 - 11.90) / 0.40 = 0.75

z2 = (13.10 - 11.90) / 0.40 = 3.00

From the standard normal distribution table, the area to the left of z = 0.75 is 0.7734, and the area to the left of z = 3.00 is 0.9987. Therefore, the percentage of workers who receive wages between Birr 12.20 and Birr 13.10 is:

0.9987 - 0.7734 = 0.2253, or approximately 22.53%.

D. To find the percentage of workers who receive wages less than Birr 11.00, we need to calculate the z-score for this value.

z = (11.00 - 11.90) / 0.40 = -2.25

From the standard normal distribution table, the area to the left of z = -2.25 is 0.0122. Therefore, the percentage of workers who receive wages less than Birr 11.00 is approximately:

0.0122, or approximately 1.22%.

E. To find the percentage of workers who receive wages more than Birr 12.95, we need to calculate the z-score for this value.

z = (12.95 - 11.90) / 0.40 = 2.63

From the standard normal distribution table, the area to the left of z = 2.

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A magazine listed the number of calories and sodium content​ (in milligrams) for 13 brands of hot dogs. Examine the​ association, assuming that the data satisfy the conditions for inference. Complete parts a and b

Answers

Option B is correct. In this context, the meaning is: Among hot dogs with the same number of calories, the sodium content varies, with a standard deviation of about 75 milligrams

The calculated test statistic is 3.75

How to get the correct option

The test statistics can be gotten from the data that we already have available in this question

The coefficient is given as 2.235

The Standard error of the coefficient is given as 0.596

The formula used is given as

Such that t = coefficient /  Standard error

where the coefficient = 2.235

The standard error = 0.596

We have to apply the values to formula:

= 2.235 / 0.596

= 3.75

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How to solve for angle W

Answers

The measure of angle W is 30 degrees.

What is the measure of angle W?

The figure in the image is a right triangle.

Angle W = ?

Adjacent to angle W = 12

Opposite to angle W = 4√3

To determine the measure of angle W, we use the trigonometric ratio.

Note that: tangent = opposite / adjacent

Plug in the values:

tan(W) = 4√3 / 12

Take the tan inverse

W = tan⁻¹( 4√3 / 12 )

W = 30°

Therefore, angle W measure 30 degrees.

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Mrs. davis is traveling for business. she flew from atlanta to washington, d.c. (547 miles) then rented a car and drove to baltimore (6 miles) for another meeting by the time she got home, how many total miles had she travelled?

Answers

Mrs. Davis travelled a total of 553 miles.

This can be calculated as:

Distance covered when she flew from Atlanta to Washington d.c.= 547 miles

Distance covered when she rented a car and drove to Baltimore = 6 miles.

Therefore, total miles can simply be calculated as:

Distance covered when she flew from Atlanta to Washington d.c + Distance covered when she rented a car and drove to Baltimore = 547miles+ 6 miles

                                                                                             = 553 miles

Hence, the total miles Mrs. davis travelled is equal to 553 miles.

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A fisherman recorded the weight of each black bass he caught during a fishing trip: {12, 7, 8, 13, 6, 14}

Answers

The median weight of the black bass caught by the fisherman is 10.5 pounds.

To find the median, we need to arrange the weights in order from smallest to largest: {6, 7, 8, 12, 13, 14}. Since there are an even number of weights, the median is the average of the two middle values, which are 8 and 12. Therefore, the median weight is (8+12)/2 = 10.5 pounds.

The median is a measure of central tendency that represents the middle value in a dataset. It is less sensitive to extreme values than the mean and is useful for describing the typical value in a skewed distribution.

In this case, the median weight of 10.5 pounds indicates that half of the black bass caught by the fisherman weighed less than 10.5 pounds, and half weighed more than 10.5 pounds.

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Please solve, I do rate!
Given: (x is number of items) Demand function: d(x) = 588.7 – 0.4x2 Supply function: 8(x) = 0.322 2 Find the equilibrium quantity: Find the producers surplus at the equilibrium quantity:

Answers

The equilibrium quantity is approximately 34.47 items and the producer surplus at the equilibrium quantity is approximately 396.11.

How to find equilibrium quantity and producer surplus?

To find the equilibrium quantity, we need to find the quantity at which the demand and supply functions are equal:

Demand function: d(x) = 588.7 – 0.4x^2

Supply function: s(x) = 8(x) = 0.322

Setting these two functions equal to each other, we get:

588.7 – 0.4x^2 = 0.322x

Simplifying this equation, we get:

0.4x^2 + 0.322x - 588.7 = 0

Using the quadratic formula, we get:

x = (-0.322 ± √(0.322^2 + 40.4588.7)) / (2*0.4)

x ≈ 34.47 or x ≈ -43.67

Since we cannot have a negative quantity, the equilibrium quantity is approximately 34.47 items.

To find the producer surplus at the equilibrium quantity, we need to calculate the area between the supply curve and the equilibrium price, which is the price that corresponds to the equilibrium quantity. We can find the equilibrium price by plugging the equilibrium quantity into either the demand or supply function:

s(34.47) = 8(34.47) = 11.58

So the equilibrium price is approximately 11.58.

Now we can find the producer surplus by integrating the supply function from 0 to the equilibrium quantity, and subtracting the result from the area of a rectangle with height equal to the equilibrium price and width equal to the equilibrium quantity. The formula for producer surplus is:

Producer Surplus = (Equilibrium Price * Equilibrium Quantity) - ∫[0, Equilibrium Quantity] Supply Function dx

Plugging in the values we found, we get:

Producer Surplus = (11.58 * 34.47) - ∫[0, 34.47] 0.322 dx

Integrating the supply function, we get:

∫[0, 34.47] 0.322 dx = 0.322 * 34.47 ≈ 11.10

So the producer surplus is:

Producer Surplus ≈ (11.58 * 34.47) - 11.10 ≈ 396.11

Therefore, the equilibrium quantity is approximately 34.47 items, and the producer surplus at the equilibrium quantity is approximately 396.11.

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The radius of a circle is 10 meters what is the area

Answers

Answer:

100π or ≈ 314.1592

Step-by-step explanation:

Area of a circle formula: A = πr²

A = π(10)²

A = π(100)

A = 100π ≈ 314.1592

Answer:

100pi

Step-by-step explanation:

pi*radius^2=area

pi*10^2=100pi

WILL GIVE BRAINLIEST!!!


A team of scientists is studying the animals at a nature reserve. They capture the animals, mark them so they can identify each animal, and then release them back into the park. The table gives the number of animals they’ve identified. Use this information to complete the two tasks that follow.



Animal Total in Park Number Marked


elk 5,625 225


wolf 928 232


cougar 865 173


bear 1,940 679


mountain goat 328 164


deer 350 105


moose 215 86



What is the probability of the next elk caught in the park being unmarked? Write the probability as a fraction, a decimal number, and a percentage

Answers

The probability of the next elk caught in the park being unmarked can be calculated as follows:

There are a total of 5,625 elks in the park, out of which 225 have been marked.This means that the number of unmarked elks is 5,625 - 225 = 5,400.Therefore, the probability of the next elk caught in the park being unmarked is 5,400/5,625 = 0.96 or 96%.

What is the probability of capturing an unmarked elk at the park?

The probability of capturing an unmarked elk in a nature reserve park can be calculated by dividing the number of unmarked elks by the total number of elks.

In this case, the number of unmarked elks is 5,400 out of a total of 5,625 elks. This gives a probability of 96% or 0.96 in decimal form. Marking and tracking animals is a common method used by scientists to study animal populations in nature reserves.

This data is crucial for designing conservation strategies that promote the survival of endangered species. Nature reserves play a crucial role in preserving and protecting wildlife and their habitats, given the significant threats they face from habitat loss, poaching, and climate change.

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Mr. Ali has 15. 8 litres of juice. He fills equal numbers of 400 ml and 1 litre juice bottles to sell. If Mr. Ali has 3200 ml of juice left,how many equal numbers of juice bottles did he fill?​

Answers

Mr. Ali filled 6 of the 400 ml juice bottles and 8 of the 1 liter juice bottles.

First, convert 15.8 liters to milliliters:

15.8 L = 15,800 mL

Let x be the number of 400 ml juice bottles filled, and let y be the number of 1 liter juice bottles filled.

The total amount of juice filled can be represented as:

400 ml/bottle * x + 1000 ml/bottle * y = 15,800 ml

Simplifying, we get:

4x + 10y = 158

We also know that there are 3200 ml of juice left:

400 ml/bottle * (x - 3200/400) + 1000 ml/bottle * y = 0

Simplifying, we get:

x + 2.5y = 28

We now have two equations with two variables. Solving for x and y, we get:

x = 6

y = 8

Therefore, Mr. Ali filled 6 of the 400 ml juice bottles and 8 of the 1 liter juice bottles.

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What is the approximate distance between the points (–9, –9) and (1, 3)?

Answers

Honestly have no idea Fr Fr but need th

Answer: 15.6 units

Step-by-step explanation:

Caroline works in a department store selling clothing. She makes a guaranteed salary


of $200 per week, but is paid a commision on top of her base salary equal to 25% of


her total sales for the week. How much would Caroline make in a week in which she


made $1575 in sales? How much would Caroline make in a week if she made a dollars


in sales?

Answers

The amount made by Caroline is $593.75 and 200 + 0.25x when she made $1574 and $x in sales respectively.

The total amount will be given by the formula using percentage -

Total amount = Base salary + 25% × her total sales

Keep the value in equation when she made $1575

Total amount = 200 + 25% × 1575

Total amount = 200 + 393.75

Total amount = $593.75

Keep the value in equation when she made $x

Total amount = 200 + 25% × x

Total amount = 200 + 0.25x

Hence, the earned amount is $593.75 and 200 + 0.25x.

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The complete question is -

Caroline works in a department store selling clothing. She makes a guaranteed salary of $200 per week, but is paid a commision on top of her base salary equal to 25% ofher total sales for the week. How much would Caroline make in a week in which she made $1575 in sales? How much would Caroline make in a week if she made x dollars in sales?

gabriela is building wooden box that is 15 in. tall and has a rectangular base that is 18 in by 15 in

Answers

A open box without a top 1260 sq. in. wood will Gabriella use.

Since the top of the box is the same area as the base, calculate the base.

B = length × width

Length of the wooden box = 18 in.

Width of the wooden box = 15 in.

B = 18(15) = 270 in.

Calculate the surface area of the box.

Surface Area = 2(B + wh + hl)

h = 15

w × h = 15(15) = 225

h × l = 15(18) = 270

Surface Area of the wooden box = 2(270 + 225 + 270) = 2(765) = 1,530 sq. inches

Subtract the base from the surface area: 1,530 - 270 = 1,260sq. in.

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The given question is incomplete, complete question is:

Gabriella is beauty a wooden box with a rectangular base that is 18 in by 15 in and is 15 in tall if she wants a open box without a top how much wood will Gabriella use

A bacteria population doubles every eight minutes if the population with one cell, how long will it take to grow to 2097152

Answers

The time that it will take the bacteria to grow to 2097152 is: 2 hours 48 minutes

How to solve Exponential functions?

An exponential function is defined as a Mathematical function in the form f(x) = [tex]a^{x}[/tex].

where:

“x” is a variable.

“a” is a constant which is called the base of the function and it should be greater than 0

However; the exponential function is:

1([tex]2^{x}[/tex]) = 2097152

log 2x  = log 2097152

x log 2 = log 2097152

x = log 2097152/log 2

x = 6.32162/0.3010

x = 21 times the population doubles

21(8) = 168 minutes = 2 hours 48 minutes

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Help please asap need help.

Answers

The surface areas of the pyramids are listed below:

125 in² 304 ft² 420 yd² 57 yd² 336 in² 104 ft²

How to determine the surface area of the square pyramid

In this problem we find six cases of square pyramids, whose surface areas shall be found by means of the following formulas:

A = 4 · 0.5 · b · s + b²

Where:

b - Base sides - Slant heightA - Surface area

Now we proceed to determine the surface area of the square pyramid:

Case 1:

A = 4 · 0.5 · (5 in) · (10 in) + (5 in)²

A = 125 in²

Case 2:

A = 4 · 0.5 · (8 ft) · (15 ft) + (8 ft)²

A = 304 ft²

Case 3:

A = 4 · 0.5 · (10 yd) · (16 yd) + (10 yd)²

A = 420 yd²

Case 4:

A = 4 · 0.5 · (3 yd) · (8 yd) + (3 yd)²

A = 57 yd²

Case 5:

A = 4 · 0.5 · (8 in) · (17 in) + (8 in)²

A = 336 in²

Case 6:

A = 4 · 0.5 · (4 ft) · (11 ft) + (4 ft)²

A = 104 ft²

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ANEXO 2


Identifica los objetos con los que se mide la masa y el volumen, y escribe en donde corresponda.


Manómetro


VOLUMEN


MASA


Pipetas


Fórmula de densidad,


Probetas


Báscula.


Matraz


Balanzas


Fórmula volumen


Vaso de precipitación

Answers

The objects used to measure mass are Balances and Scales. The objects used to measure Volume are Manometer, Pipettes, Graduated cylinders, Flasks, Volumetric flasks and Beakers. Here Density formula can be used to measure both mass and volume.

The problem is asking to match different measuring tools with the measurements they are used for, i.e., mass or volume.

The first tool is a manometer. A manometer is used to measure pressure and not mass or volume, so it does not belong in either category.

The next set of tools are pipettes, graduated cylinders, and volumetric flasks. These tools are all used to measure volume, so they belong in the volume category.

The next set of tools are scales and balances. These tools are used to measure mass, so they belong in the mass category.

The formula for density can be used to calculate the mass of an object given its volume and density, or the volume of an object given its mass and density, so it belongs in both categories.

Finally, a beaker or a graduated cylinder can be used to measure volume, so it belongs in the volume category.

Therefore, the correct categorization of the measuring tools are as follows

Volume

Pipettes

Graduated cylinders

Volumetric flasks

Beaker or graduated cylinder

Mass

Scales

balances

Both

Formula for density

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A ramp at a dog park is made of three sections. The incline and decline pieces are the same length, 13√37 inches. The center is 10√41 inches long. What is the total length of the ramp? Give your answer as a radical expression.

Answers

The total length of the ramp is 222.18 inches

How to find the total length?

Let's denote the length of the incline and decline pieces by x, and use the given information to form an equation in terms of x:

Length of incline + length of decline = 2(13√37) inches

= 26√37 inches

The total length of the ramp is the sum of the lengths of all three sections:

Total length = Length of incline + Length of center + Length of decline

Total length = 26√37 inches + 10√41  inches

Total length = 222.18 inches

Therefore, the total length of the ramp is 222.18 inches

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Your name is Galileo Galilei, and you toss a weight upward at 16 feet per second from the top of the Leaning Tower of Pisa (height 186 ft). (a) Neglecting air resistance, find the weight's velocity as a function of time t in seconds. v(t) = Correct: Your answer is correct. ft/s (b) Find the height (in feet) of the weight above the ground as a function of time. s(t) =

Answers

(a) The weight's velocity as a function of time t in seconds is v(t) = 16 - 32.2t

(b) The height (in feet) of the weight above the ground as a function of time is s(t) = 186 + 16t - (1/2)(32.2)t^2

To find the weight's velocity and height as a function of time:

(a) The equation for velocity as a function of time is v(t) = v0 - gt,

where v0 is the initial velocity (in this case, 16 ft/s) and g is the acceleration due to gravity (32.2 ft/s^2).

Using this equation, we can find the weight's velocity as it travels upward:

v(t) = 16 - 32.2t

(b) The equation for height as a function of time is s(t) = s0 + v0t - (1/2)gt^2,

where s0 is the initial height (in this case, 186 ft).

Using this equation, we can find the height of the weight above the ground at any point in time:

s(t) = 186 + 16t - (1/2)(32.2)t^2

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What’s the answer I need help plsease

Answers

Answer: B

Step-by-step explanation:

Your original matrix:

1 0

0 1

after dilation

3 0

0 3

after reflection... it only changes sign of y because its reflected across x-axis

3 0

0 -3

B

What do you think causes the percent of filers to jump so dramatically between the under-18 group and the 18-26 group?

Answers

The significant increase in the percent of filers between the under-18 group and the 18-26 group can be attributed to various factors, including age, income, and financial independence.



Firstly, individuals under the age of 18 are typically considered minors and are often dependent on their parents or guardians for financial support. As a result, they may not have any significant income that requires them to file taxes, and their income might be included in their parent's or guardian's tax return. This leads to a lower percentage of filers in the under-18 group.


On the other hand, the 18-26 age group marks the transition into adulthood, where individuals begin to gain financial independence. Many start working full-time jobs or attend college, where they may earn income through part-time jobs or internships. This increased income leads to a higher percentage of filers in the 18-26 group, as they are now responsible for filing their own tax returns.


Furthermore, the age range of 18-26 also coincides with the period where individuals are more likely to have various income sources. This includes scholarships, grants, and student loans for those attending college. These additional income sources may also contribute to the increased percentage of filers in this age group.


Lastly, as individuals become more financially independent, they may become more aware of tax benefits and deductions available to them, such as educational credits or deductions for student loan interest. This newfound awareness could encourage more people within the 18-26 age group to file taxes, leading to a higher percentage of filers.


In conclusion, the dramatic jump in the percent of filers between the under-18 group and the 18-26 group can be attributed to factors such as increased financial independence, diverse income sources, and greater awareness of tax benefits and deductions.

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Which expressions are equivalent to 6\cdot6\cdot6\cdot6\cdot66⋅6⋅6⋅6⋅66, dot, 6, dot, 6, dot, 6, dot, 6 ?

Answers

The expressions equivalent to 6\cdot6\cdot6\cdot6\cdot66\cdot6\cdot6\cdot6\cdot66 are 1296\cdot396\cdot2376 and 839808\cdot36.

Find out which expression is equivalent to the given expressions?

We can use the associative property of multiplication to group the factors in different ways while preserving their product. For example, we can group the first four 6's together and then multiply by the remaining 6 and 66:

6\cdot6\cdot6\cdot6\cdot66\cdot6\cdot6\cdot6\cdot66 = (6\cdot6\cdot6\cdot6)\cdot(6\cdot66)\cdot(6\cdot6\cdot66)

= 1296\cdot396\cdot2376

Alternatively, we can group the last two 6's together and then multiply by the remaining factors:

6\cdot6\cdot6\cdot6\cdot66\cdot6\cdot6\cdot6\cdot66 = (6\cdot6\cdot6\cdot6\cdot66)\cdot(6\cdot6)

= 839808\cdot36 is the equivalent expression.

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Lisandra was the center a towel bar on her door that is 29 inches wide she determines that the better distance from each of the towel bar to the end of the door is 7. 75 inches write and solve an equation to find the length of the towel bar.

Answers

The length of the towel bar is 13.5 inches.

Let's use the given information to write and solve an equation for the length of the towel bar.

We know that the door is 29 inches wide and that there is a 7.75-inch distance from each end of the towel bar to the respective end of the door. Let's denote the length of the towel bar as x.

So, the total width of the door can be expressed as the sum of the two distances and the length of the towel bar:
29 = 7.75 + x + 7.75

Now, let's solve for x:
29 = 15.5 + x
x = 29 - 15.5
x = 13.5 inches

Therefore, the length of the towel bar is 13.5 inches.

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a = 10 m, b = 6 m and c = 9 m for the triangle shown below.

Work out the value of x rounded to 1 d.p.

Answers

In the given diagram, the value of x in the right triangle is approximately 14.7

Solving right triangles: Calculating the value of x

From the question, we are to calculate the value of x in the given diagram.

In the given diagram, we have two right triangles.

First, we will calculate the value of the side joining the two triangles.

Let the side joining the two triangles be d

Thus,

From the Pythagorean theorem, we can write that

d² = a² + b²

d² = 10² + 6²

d² = 100 + 36

d² = 136

Now, in the other triangle

Also, using the Pythagorean theorem, we can write that

x² = c² + d²

x² = 9² + 136

x² = 81 + 136

x² = 217

x = √217

x = 14.7309

x ≈ 14.7

Hence, the value of x is approximately 14.7

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Can someone please help me ASAP? It’s due tomorrow

Answers

Answer:2.78

Step-by-step explanation:

the probability of rolling a 5 on a six-sided die and then rolling a 2? The chances of rolling a 5 on the first die is 1 in 6. The chances of rolling a 2 on the second roll in 1 in 6. So the probability of a 5, then a 2, is 1 in 36.

We can see that this gives us the exact same answer as the first method: 1/36 as a percentage is 2.78%.

Answer:

A) [tex]2.78\%[/tex]

Step-by-step explanation:

Assuming that Chris throws two standard dices (meaning 6 sides, with the sides numbered as 1, 2, 3, 4, 5, 6, respectively). There is one chance of the dice landing on a 5 for both dices, and presuming that the dices do not hit each other, would be independent variables. This means that there is a 1/6 chance for both:

[tex]\frac{1}{6} * \frac{1}{6} = \frac{1}{36}[/tex]

Change the fraction to a percentage. Divide and solve for a decimal. Then, move the decimal point to the left two place values, and you will obtain your percentage:

[tex]\frac{1}{3} = 0.02777 = 2.777\%[/tex]

You are rounding to the nearest tenth place value (2nd place value right of the decimal point):

[tex]2.777\% = 2.78\%[/tex]

[tex]2.78\%[/tex] is your answer, or A).

~

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The mean of six values is 7. There is one outlier that


pulls the mean higher than the center. What could the


data set be? What is the mean without the outlier?

Answers

The data set is 2, 7, 7, 8, 9, and 9, with a mean of 7. The outlier is 2, and the mean without the outlier is 6.6. The outlier pulls the mean lower than the center, but once removed, the mean becomes more representative of the data set.

To find the mean of a set of values, we add up all the values and divide by the total number of values.

In this case, we know that the mean of six values is 7, so we can set up the following equation

(2 + 7 + 7 + 8 + 9 + 9) / 6 = 7

Simplifying the equation, we get

42 / 6 = 7

So, the sum of the six values is 42.

Now, we know that there is one outlier that pulls the mean higher than the center. In other words, one of the values is much larger than the others. Let's assume that the outlier is 20.

So, the new sum of the six values would be

2 + 7 + 7 + 8 + 9 + 20 = 53

To find the mean without the outlier, we need to subtract the outlier from the sum and divide by the remaining number of values. In this case, there are five values remaining. So, we get

(2 + 7 + 7 + 8 + 9) / 5 = 33 / 5 = 6.6

Therefore, the possible data set is 2, 7, 7, 8, 9, and 9, and the mean without the outlier is 6.6.

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--The given question is incomplete, the complete question is given

" The mean of six values is 7. There is one outlier that

pulls the mean higher than the center. What could the

data set be? What is the mean without the outlier?  

The possible data set is 2, 7, 7, 8, 9, and 9. "--

Instructors led an exercise class from a raised rectangular platform at the front of the room. The width of the platform is (x+4) meters long and the area of the rectangular platform is 3x^2+10x−8. Find the length of the platform

Answers

Length of the platform at the front of the room whose area is 3x² + 10x - 8 and width is (x+4) m is (3x - 2) m

Area of the rectangular platform = 3x² + 10x - 8

Width of the rectangular platform = x+4

Area = length × width

Length = area/width

Length = [tex]\frac{3x^{2} + 10x - 8}{x+4}[/tex]

By splitting the middle term we get

Length = [tex]\frac{3x^{2} + 12x -2x -8 }{x+4}[/tex]

By taking common we get

Length = [tex]\frac{3x(x+4) - 2(x+4)}{x+4}[/tex]

By taking x+4 common we get

Length = [tex]\frac{(3x-2)(x+4)}{x+4}[/tex]

Cutting the x+4 from denominator and numerator we get

Length = 3x-2

Length of the platform at the front of room is 3x-2

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A semi-elliptic archway has a height of 15 feet

at the center and a width of 50 feet, as shown

in the figure. The 50-foot width consists of a

two-lane road. Can a truck that is 12 feet high

and 14 feet wide drive under the archway

without going into the other lane?

Answers

Since 1.1584 > 1, the truck cannot pass under the archway without going into the other lane.

A semi-elliptic archway with a height of 15 feet at the center and a width of 50 feet can be visualized as half of an ellipse.

The major axis of the ellipse corresponds to the width, while the minor axis corresponds to the height. In this case, the major axis (a) is 25 feet, and the minor axis (b) is 15 feet.

To determine if a truck that is 12 feet high and 14 feet wide can drive under the archway without going into the other lane, we can use the equation of an ellipse: (x²/a²) + (y²/b²) = 1.

The truck will occupy half of the road width, which is 25 feet, so its horizontal distance from the center (x) is 25 - 7 = 18 feet, and its height (y) is 12 feet.

Plugging these values into the equation, we get: (18²/25²) + (12²/15²) = (324/625) + (144/225) ≈ 0.5184 + 0.64 = 1.1584.

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A division of a certain toy company manufactures an electronic football game. An efficiency study showed that the rate at which the games are assembled by the average worker t hr after starting work at 8am is: -(3/2)t^2+4t+22 (0

Answers

Answer:

Step-by-step explanation:

GEOMETRY PLEASE HELP ‼️

Answers

The probabilities are given as follows:

a) Square: 1/6.

b) Not the triangle: 43/48.

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 area of the figure is given as follows:

12 x 8 = 96 units². (rectangle).

The area of the square is given as follows:

4² = 16 units² (square of the side lengths).

Hence the probability of the square is given as follows:

p = 16/96

p = 1/6.

The area of the triangle is given as follows:

A = 0.5 x 4 x 5 = 10 units². (half the multiplication of the side lengths).

Hence the complement of the area of the triangle is of:

96 - 10 = 86 units².

And the probability of the complement is of:

86/96 = 43/48.

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which statement is true about the mean of the data set?

Answers

Step-by-step explanation:

Mean is less than 8

(1 + 1 + 6*8 + 10 ) / 9 = mean = 6.7

Answer:

A: The mean in less than 8

Step-by-step explanation:

Mean: Average

How to find the mean?

1. Add ALL the numbers given

     1: has 2 dots     8: has 6 dots     10: has 1 dot

so  2+6+1= 9

2. divide the result of point 1. by the amount of numbers given.

     9/3= 3

3.

  Numbers:

    1-2-3-4-5-6-7-8-9   3 is before 8 so it means it's less than 8.

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