Select the number that round to 387.4 when rounded to the nearest tenth.
A. 387.461
B. 387.344
C. 387.309
D. 387.352
E. 387.779

The decay rate of the cell phones is 0.3333, and the median lifetime of the phones is 2.0794 years.

The decay rate of the cell phones is 0.3333, and the median lifetime of the phones is 2.0794 years.

1)a. 0.3333

2)c. 2.0794

1)The decay rate is found by dividing 1 by the average lifetime (in this case, 3 years). Therefore, the decay rate is 1/3 = 0.3333.

2)The median lifetime of these phones is found by taking the natural logarithm of 0.5 (which is the probability of the phone failing within 2 years) and dividing it by the decay rate (0.3333). Therefore, the median lifetime is ln(0.5)/0.3333 = 2.0794.

The decay rate of the cell phones is 0.3333, and the median lifetime of the phones is 2.0794 years.

Learn more about mean here

https://brainly.com/question/15323584

#SPJ4

47 square centimeters is equal to 303.225 square inches.

Measure the length and width of an object, such as a rectangle, and multiply the results to get the number in square centimeters. In the event that the length and width are 15 cm and 10 cm, respectively, the formula is 15 cm*10 cm, which equals 150 cm2.

Any number that is multiplied by itself is transformed into a square. A different word for this is a number squared. The symbol for "squared" is 22 since 2 x 2 equals 4.

In mathematics, the squared sign (2), an arithmetic operator, stands in for multiplying an integer by itself. The "square" of an integer is the sum of that number and itself. Therefore, 10,000 square meters are represented by one square centimeter.

1 square inch = 6.4516 square centimeters.

47 in^2 = 47 × 6.4516

= 303.225 sq. cm

To learn more about centimeters refer to:

brainly.com/question/29013975

#SPJ1

It is false that x is a function of y

The given equation to be used to determine the truth and falsity of the statement is given as:

The given parameters are function of x

x = y²

determine whether the relation represents y as a function of x

x^2 + y^2 =25

x = y²

Set y = 2

x = (2)²

Taking the square root of the value

x = 4

Set y = -2

x = (-2)²

x = 4

From the experiment, the different values of y give the same x value.

therefore, this means that x is not a function of y

Learn more about functions of y and x on https://brainly.com/question/14002287

#SPJ1

The height, in feet above the ground, is 26 feet

(Achieved Peak Value - Attained Lowest Value)/2

The lowest number = is 5 if the ride starts at the bottom of the Ferris wheel, which keeps you 5 feet above the ground.

Charlie will be 47 feet off the ground at the apex, or 5 feet off the ground plus the diameter of the wheel.

Amount = a = (47-5)/2 = 21.

(2/period) = b. You can just plug in the period from the question since you will already have located it.

(Peak value + Lowest value)/2 = for d = midline.

(47+5)/2 = 52/2 = 26

Know more about heights

https://brainly.com/question/28122539

#SPJ4

(15x+7)/(x-1) is the simplified rational expression

What is an expression?

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

Polynomials are algebraic expressions made up of coefficients and variables. Occasionally, variables are referred to as indeterminates. We can execute arithmetic operations on polynomial expressions, such as addition, subtraction, multiplication, and positive integer exponents, but not division by variables.

Factors of 15x²-8x-7 are (15x+7)(x-1)

Factors of  x²–2x+1 are (x-1)²

15x²-8x-7 / x²–2x+1 = (15x+7)(x-1) / (x-1)²  

common factors cancel out

(15x+7)/(x-1) is the simplified rational expression

To Learn more about the mathematical expression from the link:

brainly.com/question/1859113

#SPJ1

Answer:

Expression: 5y+3x+9

Coefficients: (of y) 5, (of x) 3

Constant: 9

Hope this helps :)

Step-by-step explanation:

The coefficient(s) of an equation will always be the number that sits next to/attached to a variable. The constant of an equation will always be the number(s) that stands alone.

The total length of the metal strips needed in inches is 370.5 inches

Number of strip metals = 12

Length of each strip metal = 2 ft 6 7/8 in.

Convert feet to inches:

1 feet = 12 inches

2 feet = 24 inches

2 ft 6 7/8 in = 30 7/8 inches

Total length of strip metals= Number of strip metals × Length of each strip metal

= 12 × 30 7/8 inches

= 12 × 247/8

= 2,964/8

= 370.5 inches

So therefore, the total length of the metal strips is 370.5 inches

Read more on feet to inches:

https://brainly.com/question/24762734

#SPJ1

As a result, the model's representation of the division problem is 7/4 * 1/2 = 3 1/2 as the Circled portion .

In the plane, a circle is created by each point that is a specific distance from another point (center). Therefore, it is a curve made up of points that are spaced out from one another in the plane in a fixed manner. It rotates symmetrically around the center at all angles. Every pair of points in the plane of a circle, which is a closed two-dimensional object, are evenly distanced from the "center." Specular symmetry is produced by a line that traverses the circle. It rotates symmetrically around the center at all angles.

given

Circled portion of the shaded partition is 7/4 of the total.

Take 1/2's reciprocal and switch the sign to multiply. 7/4 * 1/2 = 3 1/2

As a result, the model's representation of the division problem is 7/4 * 1/2 = 3 1/2 as the Circled portion .

To know more about circle visit:

https://brainly.com/question/29142813

#SPJ1

The slope of the line passing through (3, 7) and (-2, -1) is 1.6

An equation consists of numbers and variables linked together by mathematical operations to form an expression.

A linear equation is in the form:

y = mx + b

Where m is the rate of change and b is the initial value

The slope of the line passing through (3, 7) and (-2, -1) is:

Slope = (-1 - 7) / (-2 - 3)

Slope = -8/-5 = 8 / 5

Slope = 1.6

The slope is 1.6

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

#SPJ1

Over the past few months, Brody has eaten 3 glazed donuts and 6 other donuts. we expect 1 to be glaized

Generally, Based on the data provided, it seems that Brody has eaten 3 glazed donuts out of a total of

3 + 6 = 9 donuts.

This means that 3/9, or approximately 1/3, of the donuts Brody has eaten are glazed.

So, if Brody eats 3 more donuts, we would expect 1/3 of them to be glazed,

or 3*(1/3)=1.

Read more about probability

https://brainly.com/question/30034780

#SPJ1

The difference in salary will be $71,250.

What is multiplication in mathematics?

Multiplication is a mathematical operation that is used to find the product of two or more numbers. It is usually represented by the symbol "x" or "*", and is often referred to as repeated addition.

Career Preparation and Development (Career SMART Goals) worth 50 points.

Denise Diligence scored 95/100 on all of the assignments and reports, so she earned a total of 47.5 points.

Since each point earned will result in a $1500 increase in salary 20 years from now, Denise's salary will be $1500 x 47.5 = $71,250 higher than Slacker's.

Sam Slacker did not complete any of the career smart goals assignments and reports, so he earned a total of 0 points.

Hence, the difference in salary will be $71,250.

To learn more about multiplication in mathematics, visit:

https://brainly.com/question/10873737

#SPJ4

A person can see a distance of approximately 32.9 miles on a clear day from a height of 1461 feet above the given planet.

d = 2 √(hR)

We can use the formula d = 2 √(hR) to calculate the distance d to the horizon that a person can see on a clear day from a 1461 feet above the given planet.

First, we need to convert the height of 1461 feet to miles. We can use the conversion factor of 1 mile = 5280 feet. Therefore, the height h = 1461/5280 ≈ 0.2772 miles.

Next, we need to find the radius of the planet. The radius of the planet is given as 3900 miles.

Finally, we can substitute h = 0.2772 miles and R = 3900 miles into the formula d = 2 √(hR).

d = 2 √(0.2772*3900) = 2 √(1083.08) ≈ 32.9 miles

Therefore, a person can see a distance of approximately 32.9 miles on a clear day from a height of 1461 feet above the given planet.

Learn more about distance here:

https://brainly.com/question/15172156

#SPJ4

The equations are 100x + 80y = 25600 and 50x + 160y = 18200.

An equation is the statement of two expressions located on two sides connected with an equal to sign. The two sides of an equation is usually called as left hand side and right hand side.

Let x be the cost of a quail and y be the cost of a rabbit bought by the business lady.

Given that a business lady bought 100 quails and 80 rabbits for sh 25600.

100x + 80y = 25600

If she bought twice as many rabbits, number of rabbits = 80 × 2 = 160.

If she bought half as many quails, number of quails = 100/2 = 50

The equation is then,

50x + 160y = 25600 - 7400

50x + 160y = 18200

Hence the equations formed here at two situations are 100x + 80y = 25600 and 50x + 160y = 18200.

Learn more about Equations here :

https://brainly.com/question/19173306

#SPJ1

The answers are as follows:

1. Skewed to the right.

2. The center is about 2 or 3 servings of fruit.

3. From zero o eight servings.

4. No outliers

5. About 12%.

6. 26 girls

About Pennsylvania.

Although the original European immigrants were Swedes and Dutch, William Penn, a Quaker, gave the state of Pennsylvania its name in honor of his father by combining the name Penn with the Latin word Sylvania, which means "woodlands," to create "Penn's woodlands." Pennsylvania, also known as the "Keystone State," is one of the original 13 colonies (it entered the Union in 1787). The state is now dominated by two large cities: Pittsburgh, a bustling inland river port, and Philadelphia, the city of the Liberty Bell, Constitution Hall, and a vibrant metropolitan area. The Amish are a group of people who don't utilize technology and live in the Pennsylvania countryside. The ruffed grouse is the state bird and Harrisburg is home to it.

For such more question on fruit:

brainly.com/question/18089379

#SPJ4

The following question be maybe like:

We all know that fruit is good for us. Many of us do not eat enough. The figure provided is a histogram of the number of servings of fruit per day claimed by 74 seventeen-year-old girls from a study in Pennsylvania.

Image given below:

1. Choose the term that best describes the shape of this distribution.

2. Provide the center of this distribution (Enter your answer as a whole number.)

3. Select the best description for the variability of this distribution.

4. Are there any outliers?

5. What percent of these girls ate six or more servings of fruit per day?

6. How many of these girls ate fewer than two servings of fruit per day?  

The linear speed of the vehicle In miles per hour is 19.04 miles per hour

Angular speed is the time rate at which an object rotates, or revolves, about an axis, or at which the angular displacement between two bodies changes. In the figure, this displacement is represented by the angle θ between a line on one body and a line on the other.

The relationship between angular and linear speed is v = wr

where w= angular speed

v = linear speed

and r is the radius

1 inch = 1.578×10^-5

r = 32/2 = 16 inches = 16×1.578×10^-5

= 25.25×10^-5 = 2.5×10^-4miles

1 revolution = 2π = 6.28

800 revolution = 6.28× 800 = 5024

1 minutes = 1/60

800rev/minutes = 5024×60= 301440 rad/hour

v = wr

v = 301440 × 1.578 × 10^-5 = 4.76 miles per hour

therefore the linear speed of the car is 4.76miles/ hour × 4 = 19.04 miles per hour

learn more about angular speed from

https://brainly.com/question/6860269

#SPJ1

The vertex for the graph is at (2, 0).

A parabola is formed by cutting a right circular cone in half along a plane perpendicular to the cone's generator. It is a locus of a moving point whose separation from the focus is equal to its separation from a stationary line (directrix)

Focus is a fixed point.

Directrix is the name for fixed lines.

Given the graph is a parabola,

A parabola's vertex is the location where its symmetry line and parabola intersect. The vertices of a parabola whose equation is provided in standard form will be the lowest (lowest point) and highest (highest point) points on the graph, respectively.

The minimum point in graph is (2, 0)

Hence vertex is (2, 0).

learn more about parabola;

https://brainly.com/question/21685473

#SPJ1

The complete question is in image,

Answer:

Step-by-step explanation:

Answer:

So the answer is

FMA Assignment 01

1. Jornal

2. Date (Mar) Accounts Title Debit ($) Credit ($)

1 Cash 60,000

Common Stock 60,000

3 Land 23,000

Buildings 9,000

Equipment 6,000

Cash 38,000

5 Advertising Expenses 1,600

Cash 1,600

6 Prepaid Insurance 1,480

Cash 1,480

10 Equipment 26,000

Accounts Payable 26,000

18 Cash 800

Golf Revenue 800

19 Cash (100 x 15) 1,500

Unearned Revenue 1,500

25 Dividends 1,000

Cash 1,000

30 Salaries Expenses 600

Cash 600

30 Accounts Payable 26,000

Cash 26,000

31 Cash 500

Golf Revenue 500

Answer:

−16890

Step-by-step explanation:

Simplify the expression.

The volume of the container is (x+6)(x-2)(x-1) cubic feet and it can be express as the form of polynomial.

Six faces make up the three-dimensional shape of a rectangular prism. The prism's faces are all rectangles. The shape of a rectangular prism is cuboidal.

There are two sets of parallel and congruent bases in this polyhedron. It has eight vertices, 12 sides, and six faces. Rectangular prisms are also known as a right rectangular prism, rectangular parallelepiped, and rectangular hexahedron.

Right rectangular prisms and oblique prisms are the two primary varieties of rectangular prisms. The bases of a right rectangular prism are parallel to the other faces.

The volume of a rectangular prism is simply the product of its three dimensions: in your case, the volume of the prism is, given x

[tex](x+6)(x-2)(x-1)[/tex]

A polynomial is a sum (with some coefficients) of powers of x, so, if we expand the product just written, we have.

[tex]=(x+6)(x-2)(x-1)\\\\=(x^2-2x+6x-12)(x-1)\\\\=(x^3+4x^2-12x-x^2-4x+12)\\\\=(x^3+3x^2-16x+12)[/tex]

Which is a polynomial and expresses the volume of the prism.

the complete question is,

How do you write a polynomial that represents the volume of a box that is a rectangular prism has the dimensions length x+6, width x-2, and height x-1?

To learn more about prism,

brainly.com/question/24284033

#SPJ4

a) This equation holds true for all x values except x=0, because it would result in division by zero.

b) This equation holds true for all x values except x=0, because it would result in division by zero.

What is inequality?

An inequality is a statement that compares two expressions and is represented by one of the following symbols: < (less than), > (greater than), ≤ (less than or equal to), ≥ (greater than or equal to), ≠ (not equal to).

a) 6x² - x³ = -x² + 2x + 3

b) 6x² - x³ ≤ -x² + 2x + 3

To solve for x in the given inequalities:

a) 6x² - x³ = -x² + 2x + 3

Start by isolating x³ on one side of the equation:

x³ = 6x² + (-x² + 2x + 3)

x³ = 6x² + 2x + 3

Now we can factor out x² from the right side of the equation:

x³ = (x²)(6 + 2/x) + 3

This equation holds true for all x values except x=0, because it would result in division by zero.

b) 6x² - x³ ≤ -x² + 2x + 3

Start by isolating x³ on one side of the inequality:

x³ ≤ 6x² + (-x² + 2x + 3)

x³ ≤ 6x² + 2x + 3

Now we can factor out x² from the right side of the inequality:

x³ ≤ (x²)(6 + 2/x) + 3

This inequality holds true for all x values except x=0, because it would result in division by zero.

Hence,

a) This equation holds true for all x values except x=0, because it would result in division by zero.

b) This equation holds true for all x values except x=0, because it would result in division by zero.

To learn more about inequality, visit:

https://brainly.com/question/24372553

#SPJ1

To create a third-degree polynomial model for the velocity data of the space shuttle Endeavour we need to use a graphing calculator or computer.

1. Enter the velocity data into the graphing calculator or computer.

2. Select the "Polynomial Regression" option.

3. Choose the degree of the polynomial (third degree).

4. Enter the polynomial regression equation displayed.

5. Select the "Graph" option to view the polynomial model.

A third-degree polynomial model can be used to accurately represent data points. To create a third-degree polynomial model for the velocity data of the space shuttle Endeavour, we need to use a graphing calculator or computer. First, we enter the velocity data into the graphing calculator or computer. Then we select the "Polynomial Regression" option and choose the degree of the polynomial (third degree). This will generate the polynomial regression equation which can then be entered. Finally, we select the "Graph" option to view the polynomial model. This will show us a graph of the velocity data points with the third-degree polynomial fitted to the points. This can be used to accurately predict the velocity of the shuttle Endeavour throughout its mission STS-49.

Learn more about polynomial here

https://brainly.com/question/11536910

#SPJ4

The height of the tree is 8 feet.

Triangles which has the same shape but are different in size are said to be similar triangles for example all equilateral triangles are similar triangle.  

It is also defined as if the corresponding sides of two triangles are in proportion then the two triangles are said to be a similar triangles. The symbol ‘~’ is used to denote the similarity between two triangles.

If two triangles ΔABC and ΔXYZ are two similar triangles then the condition between corresponding sides is given by

Here we have

John's height is 6 feet

He standing 4 feet from a tree

Johns's shadow is 12 feet long  

We can represent the whole scenario as two similar triangles

[ Picture is given below ]

As we know in Similar triangles the ratio of corresponding sides is equal

Let 'x' be the height of the tree

From given figure  

=> AC: DE = BC: EB  

=> x : 6 = 16 : 12

=> x/6 = 16/12

=> 12x = 16 × 6  

Divided by 6

=> 2x = 16

Divided by 2

=> x = 8

Therefore,

The height of the tree is 8 feet.

Learn more about Similar triangles at

https://brainly.com/question/29731302

#SPJ1

3) The equation of the linear model would be y = 7.5x+60.

4) If Adam studies for 6 hours then his score would be 88.

What is the Linear equation?

An algebraic equation with only a constant and a first-order (linear) term is said to be linear if it has the formula y = mx + b, where m is the slope and b is the y-intercept. The above is occasionally referred to as a "linear equation with two variables," where y and x are the variables.

y = mx + c

where m denotes the slope.

The y-intercept is represented by the constant c. (Where x is zero)

In our instance, y-intercept equals 60.

The line's equation will therefore be:

y = mx + 60

y = mx + 60

There are given the line's coordinates (4, 90). These considerations will thus satisfy the equation.

90 = 4*m + 60

4.m = 30 m = 7.5 m = 7.5 y = 7.5x + 60 y = 7.5 * 6 + 60 y = 45 + 60 y = 105 is

y = 7.5x + 60.

If Adam's study for 6 hours then his score would be

y = 7.5x + 60.

y = 7.5(6) + 60

y = 105

Hence,

3) The equation of the linear model would be y = 7.5x+60.

4) If Adam studies for 6 hours then his score would be 88.

To learn more about equations refer to:

brainly.com/question/4344214

#SPJ1

When rolling a pair of dice, there are 36 possible outcomes, each representing a unique combination of the numbers on the two dice.

Event A: "at least one die is a 3" is not mutually exclusive with Event B: "at least one die is a 6" or Event C: "the sum is 11"

Event A and Event B are mutually exclusive because when one of the die is a 6, the other die cannot be a 3 and vice versa.

Event A and Event C are not mutually exclusive because there are some outcomes where at least one die is a 3 and the sum is 11. For example (3,8), (4,7) and (6,5) are all outcomes where at least one die is 3 and the sum is 11.

Event B and Event C are not mutually exclusive because there are outcomes where at least one die is a 6 and the sum is 11. For example (5,6) and (6,5) are both outcomes where at least one die is a 6 and the sum is 11.

So, in conclusion, Event A and Event B are mutually exclusive, but Event A and Event C and Event B and Event C are not mutually exclusive.

To know more about combination , click here:

brainly.com/question/29677982

#SPJ4

Ridge regression is a type of linear regression used to reduce the effects of multi-collinearity. It is used with 1000 labeled examples to minimize the sum of the squared errors of the model.

Ridge regression is a type of linear regression used to reduce the effects of multi-collinearity. It adds a penalty term to the cost function that penalizes large coefficients, thus reducing their magnitude. The penalty term is a regularization term that is added to the cost function to minimize overfitting. To use ridge regression, one must select a value for the regularization parameter. This parameter determines how much the model weights the penalty term, and is usually determined through cross-validation. With 1000 labeled examples, ridge regression can be used to minimize the sum of the squared errors of the model. The model is then trained on the data, and predictions can be made. Ridge regression is a powerful tool for reducing the effects of multi-collinearity, and can be used to accurately model relationships between variables.

Learn more about regression here

https://brainly.com/question/30011167

#SPJ4

The best-hitting team can be calculated by finding the mean of each team's hitting percentages. To do this, add the ten numbers for each team and divide by 10.

Team 1: (0.345 + 0.254 + 0.278 + 0.331 + 0.267 + 0.465 + 0.189 + 0.312 + 0.365 + 0.287) / 10 = 0.3125

Team 2: (0.243 + 0.378 + 0.312 + 0.298 + 0.287 + 0.387 + 0.301 + 0.412 + 0.254 + 0.342) / 10 = 0.3267

Team 2 has the highest mean, so it is the best-hitting team.

In this example, it was determined that Team 2 was the best-hitting team by finding the mean of each team's hitting percentages. The mean of Team 1's hitting percentages was 0.3125, and the mean of Team 2's hitting percentages was 0.3267. Since Team 2 had the highest mean, it was determined to be the best-hitting team.

The best-hitting team can be calculated by finding the mean of each team's hitting percentages. To do this, add the ten numbers for each team and divide by 10.

learn more about number here

https://brainly.com/question/10547079

#SPJ4

The Equation For calculating the paver area is

Length(m) x width(m) = area(m²).

Concrete, natural stone, clay brick, or even porcelain can be used to make pavers. They are typically little fragments of varying sizes. Homeowners can choose from a variety of hues, patterns, and textures.

Divide your space into squares or rectangles and multiply the length by the width to find the square metres of paved surface. The total square metres should be included. There are about 38 pavers per square metre, although this varies depending on how many cuts are made and what laying pattern is used. Additionally, you must account for waste.

The area to be paved and the paver selected will determine how many pavers are required.

Determine the area that will be paved in square metres.

Equation : Length(m) x width(m) = area(m²).

To know more about How to calculate Paver area refer to:

https://brainly.com/question/3522485

#SPJ1

The probability that the first item is not the first to be delivered is 0.6667

Let's call the events that the first, second, and third items arrive on the first day of February A, B, and C, respectively.

Therefore, the probability that one of the other two items arrives first is

1/3 + 1/3 = 2/3.

The probability that the first item is not the first to be delivered is

1 - 2/3 = 1/3

Evaluate

1 - 2/3 = 0.6667

Read more about probability at

https://brainly.com/question/251701

#SPJ1

The probability of rolling an even number on an unfair die is 0.65, which means that if you roll the die multiple times, the proportion of times that you roll an even number will be close to 0.65.

So, the probability of rolling an even number is closest to option c) 0.65

A die is a cube with numbers on each face that are used in games or gambling. A fair die is a die that is equally likely to land on any of its faces, meaning that each face has a probability of 1/6 of being the face that lands up. An unfair die is a die that does not have an equal probability of landing on each face. It means that the probability of landing on each face is not the same.

In the given scenario, it is said that the probability of rolling an even number on an unfair die is 0.65. This means that if you roll the die multiple times, the proportion of times that you roll an even number will be close to 0.65. It means that the die is not fair, and it is more likely to roll an even number.

Therefore, the probability of rolling an even number is closest to 0.65, it is the probability of rolling an even number on an unfair die.

--The question is incomplete, answering to the question below--

"The probability of rolling an even number on an unfair die is 0.65 which of the following is closest to the probability that an even number

a. 0.35

b. 0.40

c. 0.65

d. 0.70"

To know more on unfair die

https://brainly.com/question/28846438

#SPJ4