Since the equation for both triangles have a2+b2, you can think of two equations for c2 and n2 as in a system of equations. Substitute what a2+b2 equals for the first equation for a2+ b2 give me second equation. After you substitute what equation do you get​

Answer:  a. What is the proportion of current smokers among the 1685 high school students surveyed?

The proportion of current smokers among the 1685 high school students surveyed is 437/1685 = 0.259 or 26%.

b. What is the point estimate for the population proportion of all high school students who smoke?

The point estimate for the population proportion of all high school students who smoke is 0.259.

c. What is the 95% confidence interval for the population proportion of all high school students who smoke?

The 95% confidence interval can be calculated using the formula:

point estimate ± 1.96 * standard error

where standard error = square root of (point estimate * (1 - point estimate) / sample size)

standard error = square root of (0.259 * (1 - 0.259) / 1685) = 0.012

95% confidence interval = 0.259 ± 1.96 * 0.012

= 0.259 ± 0.023

= [0.236, 0.282]

So, the 95% confidence interval for the population proportion of all high school students who smoke is between 23.6% and 28.2%.

Step-by-step explanation:

Step 1: Calculate the area of the room. To calculate the area of the room, multiply 12 feet by 15 feet, which gives us a total of 180 square feet.

Step 2: Calculate the area of one tile. To calculate the area of one tile, multiply 113 feet by 113 feet, which gives us a total of 1.369 square feet.

Step 3: Calculate the number of tiles needed. To calculate the number of tiles needed, divide the area of the room (180 square feet) by the area of one tile (1.369 square feet). This gives us a total of 131 tiles.

Therefore, 131 tiles are needed to cover the entire floor.

Start by multiplying the tile's length by its breadth in inches to determine the tile's square footage. Lastly, multiply the area of one tile by the determined size of the space. The outcome is the precise quantity of tiles needed for the space.

For more questions like Tiling the floor visit the link below:

https://brainly.com/question/9043516

#SPJ4

An equation of the line that passes through the given point and is perpendicular to the line shown in the graph are:

11. y = 5x - 1

12. y = 5x + 6

13. y = 5x + 23

14. y = 5x − 18

If two geometric objects in fundamental geometry intersect at a right angle, they are perpendicular. The perpendicularity condition is graphically represented by the perpendicular symbol (║). It can be defined between two lines, between a line and a plane, or between two planes.

The slope of the line in graph

m = (3 -(-2))/(-2 - - 1)

m = − 5

For perpendicular to the given line the slope is always opposite sign and reciprocal i.e.

m = 3/5

11. (1, 4)

y - 4= 5(x - 1)

y - 4= 5x - 5 +4

y = 5x - 1

12. (0, 6)

y - 6 = 5(x - 0)

y = 5x + 6

13. (-5, -2)

y - (-2) = 5(x - (-5))

y = 5x + 23

14. (3, -3)

y - (-3) = 5(x - 3)

y = 5x − 18

Learn more about perpendicular

https://brainly.com/question/18271653

#SPJ1

Answer:

  domain: x ≥ 2

Step-by-step explanation:

Given a function with domain x ≥ -5 and range y ≥ 2, you want the domain of its inverse.

The domain of an inverse function is the same as the range of the function.

The domain is x ≥ 2.

__

Additional comment

If a function tells you ...

  y = f(x)

The inverse function is ...

  x = f(y)   ⇒   y = f⁻¹(x)

The domain and range of the inverse function are swapped from those of the original function.

The cost of a 15-minute call to this city would be $2.00.

The cost of a long-distance call to a certain city is typically $1.05 for the first minute and $0.15 for each additional minute or part thereof. This means that for each minute of the call, you will be charged $0.15 in addition to the first minute's charge. Therefore, for a 15-minute call to this city, you will be charged $1.05 for the first minute and 14 x $0.15 for the additional minutes, which comes to a total of $2.00. This price may vary depending on the phone carrier, but it is typically the same across the board. It is important to keep in mind that long-distance calls can become quite expensive, so it is important to be mindful of how much time you are spending on the phone.

Learn more about the cost of calls at:https://brainly.com/question/30442125

#SPJ4

A conclusion that the class can make is: there is no relationship between the number of books and the number of pens. The Option D is correct.

A relation is simply a link between two sets of data. When two values, x and y, are linked in an equation or inequality, they are related and thus represent a relation.

From the graph given, we can not draw any association or relationship between the number of books and the number of pens, rather, their quantity in the classroom is deducable.

Read more about relationship

brainly.com/question/1098959

#SPJ1

Answer:

Hope this help :)

Step-by-step explanation:

The amount Micah withdrew can be represented as a rational number as 4.5 or 9/2.

A rational number is a number that can be expressed as the ratio of two integers. In this situation, we can represent the amount Micah withdrew as a rational number by expressing it as a fraction.

To do this, we can treat the dollar amount as a whole number (i.e. 4 dollars), and the cents amount as another whole number (i.e. 50 cents), and then express the total amount as a fraction with the sum of these two whole numbers as the numerator and 100 as the denominator (since there are 100 cents in a dollar).

So, the rational number representation of Micah's withdrawal would be:

(4 * 100 + 50) / 100 = 450 / 100 = 9 / 2

In other words, Micah withdrew 9/2 dollars from his bank account.

Learn more on rational numbers here https://brainly.com/question/19079438

#SPJ1

Answer:: 80% of 22 is 16.

Answer:

80% of 22 is 16. Hope I helped you!!

Answer 26550

Step-by-step explanation:

Answer: Let's call the length of the brick "l". Then, the width is "l - 4" and the height is "l - 6".

The volume of the brick can be expressed as:

V = l * (l - 4) * (l - 6)

Since each mold holds 576 cubic inches of mud, we can set the volume of the brick equal to 576 and solve for l:

l * (l - 4) * (l - 6) = 576

Expanding and simplifying the left side of the equation, we get:

l^3 - 10l^2 + 24l - 576 = 0

This is a cubic equation, and finding the exact value for l can be difficult. However, we can use numerical methods, such as the bisection method or Newton's method, to find an approximate value.

Step-by-step explanation:

The two resulting equations are set equal to one another and solved for the values of the variables. Therefore, the solution to the system of equations is x = 3 and y = -45.

The equal values method is a way of solving systems of equations. It involves isolating each variable on its own side of the equation and then setting the two equations equal to one another. This results in an equation with only one variable, which can then be solved. For example, the system of equations given is -8x - 21 = 6x + 7. To solve this system with the equal values method, one must first isolate the variables. The first equation can be rearranged to -8x = 21 + 6x, and then solved for x to find x = 3. Then, the same value of x can be substituted into either of the original equations to solve for y. For example, substituting x = 3 into the first equation gives -8(3) - 21 = -24 - 21 = -45, so y = -45. Therefore, the solution to the system of equations is x = 3 and y = -45.

Learn more about equation here

https://brainly.com/question/29657992

#SPJ4

The balance at the end of three months is $652.

If the initial amount (also called as principal amount) is P, and the interest rate is R% annually, and it is left for T years for that simple interest, then the interest amount earned is given by:

[tex]I = \dfrac{P \times R \times T}{100}[/tex]

Given;

P=$630

R=0.14/12

= 0.01166

n=3

Interest rate = 14%

Using the formula;

A=P(1+r)^n

we can now insert the values

A=630(1+0.01166)^3

A=652.29

Therefore, the by interest of 14% the amount will be $652.29.

Learn more about interest here;

brainly.com/question/14445709

#SPJ1

If Hank bought a 4 room home for a rental, and he put 20% down on the $300,00. 00 rental unit, the annual depreciation amount would be $8,727.27 .

To determine the depreciation amount, we first need to determine the depreciable basis of the rental property. The depreciable basis is the portion of the property's value that can be depreciated over time.

In this case, Hank put 20% down on a $300,000 rental unit, which means he paid $60,000 as a down payment. Therefore, the depreciable basis of the rental property is the remaining $240,000 ($300,000 - $60,000).

The IRS allows rental property owners to depreciate the depreciable basis of their property over 27.5 years using the straight-line method. To calculate the annual depreciation amount, we divide the depreciable basis by the number of years of useful life.

So, in this case, the annual depreciation amount would be $8,727.27 ($240,000 / 27.5). This means that Hank would be able to deduct $8,727.27 from his rental income each year for 27.5 years to account for the wear and tear of the property.

To learn more about depreciate click on,

https://brainly.com/question/30369108

#SPJ4

Where the above condition exists, the probability that the lawn mower will not start on the first try exactly once out of the next two times you mow the lawn is 5/18, or approximately 0.278.

We can calculate the probability that the lawn mower will not start on the first try exactly once out of the two rounds using a binomial probability distribution.

Let's define a success as the lawn mower starting on the first try, and a failure as the lawn mower not starting on the first try.

The probability of a success is p = 5/6, since the lawn mower does not start on the first try 1/6 of the time.

The probability of a failure is q = 1/6.

The probability of getting exactly one failure out of two trials can be calculated using the binomial probability formula:

P(X = 1) = (2 choose 1) * (5/6)^1 * (1/6)^1

where (2 choose 1) is the number of ways to choose one failure out of two trials.

Simplifying this formula, we get:

P(X = 1) = 2 * 5/6 * 1/6

P(X = 1) = 5/18

Therefore, the probability that the lawn mower will not start on the first try exactly once out of the next two times you mow the lawn is 5/18, or approximately 0.278.

Learn more about probability at:

https://brainly.com/question/30034780

#SPJ1

The area of the rose garden is 129 sq. ft.

Consider the following diagram.

The dimensions of the rectangular garden:

length = 15 ft and width = 9 ft

Using the formula for the area of rectangle,

The area of the rectanguler garden would be,

A₁ = 15 × 9

A₁ = 135 ft²

In the center of the garden, she puts a smaller rectangular patch of grass. And the dimensions of the grass is 2 feet by 3 feet.

The area of rectangular patch is:

A₂ = 2 × 3

A₂ = 6 ft²

So, the area of the rose garden would be,

A = A₁ - A₂

A = 135 - 6

A = 129 ft²

Learn more about the area of rectangle here:

https://brainly.com/question/27431338

#SPJ4

Find the complete question below.

The numbers that are possible for Janet's number are 335, 36, and 37.

We start by finding the value of n using the equation n > 56 - 22. Solving this equation, we get n > 34.

So, Janet's number must be greater than 34, and it must be a two-digit positive whole number. Based on this, we can conclude that the following numbers are possible for Janet's number:

1. 35

2. 36

3. 37

These numbers are possible because they meet the criteria of being two-digit positive whole numbers and greater than 34.

Hence, the required three numbers are 35, 36, and 37.

To know more about whole number, here

https://brainly.com/question/29766862

#SPJ4

The distance between point R(3, 1) and S(3, -6) is 7 units

An equation is an expression that shows the relationship between two or more numbers and variables using mathematical operations. An equation can be linear, quadratic, cubic and so on, depending on the degree of the variable.

The distance between two points A(x₁, y₁) and B(x₂, y₂) on the coordinate plane is:

[tex]AB=\sqrt{(y_2-y_1)^2+(x_2-x_1)^2}[/tex]

Point R is located at ( 3, 1) and point S is located at ( 3, -6). Hence:

[tex]RS=\sqrt{(-6-1)^2+(3-3)^2}=7\ units[/tex]

The distance between point R and S is 7 units

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

#SPJ1

Answer:

Step-by-step explanation:

just count down which gives you 7

Answer:

Step-by-step explanation:

The volume of a cylinder with height "h" and radius "r" is given by the formula: V = πr^2h.

The volume of a cone with height "h" and radius "r" is given by the formula: V = (1/3)πr^2h.

To find the volume of a cone with the same height and radius as a cylinder with a volume of 234 cubic inches, we need to find the height and radius of the cylinder. We can use the volume formula for the cylinder to do this:

V = πr^2h

234 = πr^2h

Dividing both sides by πr^2:

h = 234 / (πr^2)

Now that we know the height, we can use it to find the radius using the volume formula for the cylinder:

234 = πr^2h

Taking the square root of both sides:

r = √(234 / πh)

Finally, we can use the height and radius to find the volume of the cone:

V = (1/3)πr^2h

This answer will give us the volume of a cone with the same height and radius as a cylinder with volume 234 cubic inches.

The height of the tree is solved to be x = 50 * tan(57°)

The description is modelled to a right triangle. The height, x, of the tree can be found using trigonometry.

Using the tangent function:

tan 57 = height of the tree, x / distance from the tree

tan 57 = x / 50

x = 50 * tan(57°)

The sin and cos will require the hypotenuse which is the slant distance and this is not given

Learn more about tangent at:

https://brainly.com/question/4470346

#SPJ1

Answer: 5 hrs

Step-by-step explanation:

650 miles (total distance) / 130 miles (speed per hour)

= number of hours it takes to get to Paris from Barcelona

650/130

= x

x = 5 hrs

Answer: The correct answer is 5 hours.

We divide the distance by speed. The link explains it better.

https://brainly.com/question/15458025

Answer:

103.42

Step-by-step explanation:

use the big circle area - 2 little white circles' area

big r = 12.5/2 = 6.25 so big circe area = π r² =π * 6.25²

small r = 3.5/2 = 1.75 so small circe area = π r² =π * 1.75²

2 of them = 2π * 1.75²

so π 6.25² - 2π * 1.75² = 39.06π-6.13π=103.42

well, looking at the picture above, we can see that the diameters are 12.5 and 3.5 for those circles, that means the radii for them will be half that for each, namely 6.25 and 1.75 respectively.

let's get the whole area for containing circle, and then subtract the area of  the small ones, what's leftover is the shaded area.

[tex]\stackrel{large~one}{\textit{area of a circle}}\\\\ A=\pi r^2 ~~ \begin{cases} r=radius\\[-0.5em] \hrulefill\\ r=6.25 \end{cases}\implies A=\pi 6.25^2 \\\\\\ \stackrel{small~one}{\textit{area of a circle}}\\\\ A=\pi r^2 ~~ \begin{cases} r=radius\\[-0.5em] \hrulefill\\ r=1.75 \end{cases}\implies A=\pi 1.75^2 \\\\[-0.35em] ~\dotfill\\\\ \stackrel{\textit{\LARGE Areas}}{\stackrel{large}{\pi 6.25^2}~~ - ~~\stackrel{\textit{two small ones}}{2(\pi 1.75^2)}} ~~ \approx ~~ \text{\LARGE 103.48}[/tex]

The sign of the expression is positive, since the result is positive.

An algebraic expression is a mathematical phrase that can contain numbers, variables, and operations. Algebraic expressions are used to represent mathematical relationships and can be simplified, evaluated, and solved for particular values of the variables.

Algebraic expressions can be simple, such as a single variable or number, or complex, involving multiple variables, operations, and grouping symbols, such as parentheses. For example, the expression "x + 2" is a simple algebraic expression, where "x" is the variable and "2" is the constant term.

In algebra, variables are used to represent unknown values and the goal is often to find the value of these variables that satisfy a given condition or equation. Algebraic expressions can be simplified by combining like terms and applying the properties of arithmetic operations.

Algebraic expressions are also used to represent mathematical functions. A function is a relationship between an input value and an output value, where each input value corresponds to exactly one output value. Algebraic expressions can be used to define a function, and can also be used to find the value of the function for a particular input.

The expression 39 11 13​ +(−41 131​ )39, 11/13 + (−41/13) simplifies to 39 11 13​ +(−41 131​ )39, 11/13 + (−41/13) = 39 11 13 - 41 131​ = (39 × 13 - 41 × 11) / 13 = (507 - 451) / 13 = 56 / 13 = 4.

The sign of the expression is positive, since the result is positive.

To know more about expression visit:

https://brainly.com/question/29176690

#SPJ1

The smallest integer value in the set is 7.

The grouping of positive and negative numbers is known as integers. Integers, like whole numbers, do not include the fractional portion. Integers can therefore be defined as numbers that can be positive, negative, or zero but not as fractions.

Since an integer is a whole number, it can reach both positive and negative infinity. 0 is the smallest non-negative number.

Consider the given term as -3(x-4) = 12

Then, -3x + 12 = 12

or, -3x = 0

or, x = 0

So, the value of x is either x > 0 or x < 0

Based on the given option, the smallest integer value is 7.

So, the required answer is 7.

To learn more about an integer

https://brainly.com/question/1768255

#SPJ1

The puddle is 29.8 feet away from his residence.

The angle of depression is the angle formed by the horizontal line and the horizontal line's observation of the item.

From the given diagram, we need to calculate the distance of the puddle from his house. This is the adjacent side of the triangle.

Using trigonometry identity;

tan 40 = opposite/adjacent

tan 40 = 25/d

d = 25/tan40

d = 29.8 feet

Hence the distance of the puddle from his house is 29.8 feet

Learn more on angle of depression here: https://brainly.com/question/17193804

#SPJ1

The equivalent function in the form [tex]R(t) = ab^t[/tex] is: [tex]R(t) = 4001 * 0.9^t.[/tex]

What is an equivalent function?

The domain and range of an equivalent function are the same. In mathematics, the phrases equivalent and equal do not have the same meaning.

The equation R(t) = 4000(0.9)^t + 1 can be rewritten in the form [tex]R(t) = ab^t[/tex]by separating the constant factor and the exponential factor. We can do this by defining a = 4000 and b = 0.9:

 [tex]R(t) = 4000 * (0.9)^t + 1\\\\= 4000 * b^t + 1\\\\= (4000 + 1) * b^t\\\\= 4001 * b^t\\\\= ab^t[/tex]

where, a = 4001 and b = 0.9.

So, the equivalent function in the form [tex]R(t) = ab^t[/tex] is:

[tex]R(t) = 4001 * 0.9^t.[/tex]

To know more about equivalent function visit,

https://brainly.com/question/30196217

#SPJ4

Answer:

26

28

29

Step-by-step explanation:

[tex]m = a + 20[/tex]

Anywhere you see the letter a, you'll plug in the given a number.

The first one is 6, meaning

[tex]m = 6 + 20 = 26[/tex]

Then we do the same for the others.

If d = 1/8t and t is a time and d is a distance then in this expression 1/8 is representing speed of the object.

The distance covered by the object is equal to the product of the speed at which the object is moving and time taken for covering the distance.

Distance = Time × Speed

Given that,

The expression,

d = 1/8t

where,

t = time

d = distance

which parameter 1/8 is indicating ?

The equation d = 1/8t describes a function that relates time (t) and distance (d) traveled.

The parameter 1/8 in the expression d = 1/8t is the rate of change of distance with respect to time.

It represents the amount of distance traveled in one unit of time.

In this case, 1/8 is the speed or velocity of the object being considered. It tells us that for every unit of time that passes, the distance traveled by the object increases by 1/8 units.

To know more about time, distance & speed check:

https://brainly.com/question/10566304

#SPJ1