Find the coordinates of the circumcenter of the triangle with the given vertices. A(2,6), B(8,6), C(8,10)

Answers

Answer 1

Answer:

The circumcenter of the triangle with vertices A(2,6), B(8,6), and C(8,10) is (8,6).

Step-by-step explanation:

To find the circumcenter of the triangle with vertices A(2,6), B(8,6), and C(8,10), we can use the following steps:

Step 1: Find the midpoint of two sides

We first find the midpoint of two sides of the triangle. Let's take sides AB and BC:

Midpoint of AB: ((2 + 8)/2, (6 + 6)/2) = (5, 6)

Midpoint of BC: ((8 + 8)/2, (6 + 10)/2) = (8, 8)

Step 2: Find the slope of two sides

Next, we find the slope of the two sides AB and BC:

Slope of AB: (6 - 6)/(8 - 2) = 0

Slope of BC: (10 - 6)/(8 - 8) = undefined

Step 3: Find the perpendicular bisectors of two sides

Since the slope of AB is 0, its perpendicular bisector is a horizontal line passing through the midpoint of AB, which is y=6. Since the slope of BC is undefined, its perpendicular bisector is a vertical line passing through the midpoint of BC, which is x=8.

Step 4: Find the intersection of perpendicular bisectors

The circumcenter is the point where the two perpendicular bisectors intersect. The intersection point is (8,6).

Therefore, the circumcenter of the triangle with vertices A(2,6), B(8,6), and C(8,10) is (8,6).


Related Questions

{2, 4, 4, 6, 9}
mean = 5
You add one number to this set.
Which number would change the mean the most?
O 20
O 1
O 5

Answers

Answer:

O 20

Step-by-step explanation:

when you add 1 and 5 the mean only changes by a little.

but, once you add the 20 it makes your answer go up drastically which makes

O 20

your correct answer.

Solve the systems by substitution.
y = -x - 32
y = 5x

Answers

We can solve this system of equations by substitution. Since both equations are solved for y, we can set them equal to each other and solve for x.

y = -x - 32 ...(1)

y = 5x ...........(2)

Substituting (1) into (2), we get:

-x - 32 = 5x

Simplifying and solving for x, we have:

6x = -32

x = -32/6

x = -16/3

Now that we know x, we can substitute it back into either equation to solve for y. Let's use equation (2):

y = 5x

y = 5(-16/3)

y = -80/3

Therefore, the solution to the system of equations is (x, y) = (-16/3, -80/3).

(Need help please and thank you!)

Answers

the roots are 5/2, -5/2


1. There are 40 apples packed into boxes. If there are 8 apples in each box, how many boxes are there?

Answers

Answer:

5 boxes

Step-by-step explanation:

We Know

There are 40 apples packed into boxes.

There are 8 apples in each box

How many boxes are there?

We take

40 / 8 = 5 boxes

So, there are 5 boxes.

f(x)=-x+ 2
g(x)=-4x²+x+5
Find (fog)(x)

Show work on how you found answer and then answer

Answers

The function (fog)(x) is 4x² - x - 3.

Define function  

In mathematics, a function is a rule that maps each element from a set (called the domain) to a unique element in another set (called the range or codomain).

In other words, a function is a mathematical object that takes one or more inputs, performs a specified operation on them, and produces an output. The input values of a function are called its arguments, and the output value is called the function value.

Starting with g(x):

g(x) = -4x² + x + 5

Now substituting g(x) into f(x):

f(g(x)) = -(g(x)) + 2

= -[-4x² + x + 5] + 2 (substituting g(x) into f(x))

= 4x² - x - 3

Therefore, (fog)(x) = 4x² - x - 3.

To know more about range, visit:

https://brainly.com/question/29204101

#SPJ1

Which function is represented by the graph?

Answers

The function which is represented by graph is y= √(-x-2) + 1. So correct option is C.

Describe Function?

In mathematics, a function is a relation between two sets of objects in which each element of the first set (called the domain) is associated with exactly one element of the second set (called the range). The domain and range can be any sets, but they are usually subsets of the real numbers.

A function is typically denoted by a name, such as f(x), and is defined by an equation or a rule that specifies how the function operates on its inputs. The inputs to the function are typically denoted by x, and the outputs are denoted by f(x).

Functions can be represented graphically as well. The graph of a function is a visual representation of the relation between the input and output values. It is a plot of the input values on the x-axis and the output values on the y-axis.

Functions can be classified in various ways, such as linear, quadratic, exponential, trigonometric, etc. The behavior of a function can also be analyzed by looking at its domain and range, its symmetry, its intercepts, and its slope.

The function which is represented by graph is y= √(-x-2) + 1. So correct option is C.

To know more about graph visit:

https://brainly.com/question/29163305

#SPJ1

I poll is given showing 60% are in favor of a new building project if 10 people or chosen at random what is the probability that exactly 7 of them favor the new building project?

Answers

The probability that exactly 7 out of 10 people chosen at random favor the new building project is approximately 0.2010 or 20.10%.

To calculate the probability that exactly 7 out of 10 people chosen at random favor the new building project, we need to use the binomial probability formula, which is:

P(X = k) = [tex](n choose k) * p^k * (1-p)^(n-k)[/tex]

where:

n = 10 (the number of trials)

k = 7 (the number of successes we want to find)

p = 0.6 (the probability of success)

Using this formula, we can calculate the probability as:

P(X = 7) = (10 choose 7) * [tex]0.6^7 * (1-0.6)^(10-7)[/tex]

P(X = 7) = (10!/7!3!) * [tex]0.6^7 * 0.4^3[/tex]

P(X = 7) = 120 * 0.0279936 * 0.064

P(X = 7) = 0.2010 (rounded to four decimal places)

Therefore, around 0.2010 or 20.10% of people like the new building project, which is the probability that exactly 7 out of 10 randomly selected individuals will do so.

To learn more about probability please click on below link        

https://brainly.com/question/16484393

#SPJ1

The assets and liabilities of a doctor are listed below.
Home Value $589,674
Mortgage $99,408
Credit Card Balance $8,057
Owned Work Equipment $51,797
Car Value $61,182
Investments $59,090
Personal Loan $76,348


What is the total value of the doctor's capital assets?
A) $51,797
B) $61,182
C) $589,674
D) $702,653

Answers

As a result, none of the suggested solutions are the correct one. The doctor's total capital assets $761,743.

What are assets?

Assets are resources that belong to a person or a business, have value, and can be utilized to make money. Cash, investments, real estate, equipment, and inventory are a few examples of assets.

Assets are split into two groups in accounting: current assets and non-current assets. In contrast to non-current assets, which cannot be turned into cash in a year or less, current assets can be changed into cash in a year or less.

The capital assets of the doctor are:

- $589,674 for the home

- Work equipment owned: $51,797

- Vehicle Cost: $61,182

$59,090 was invested.

The value of all the capital assets owned by the doctor is:

$589,674 + $51,797 + $61,182 + $59,090

value of all the capital assets  = **$761,743

To know more about capital assets visit:

brainly.com/question/14288500

#SPJ1

Jake and carry 6 and 1/4 lb of wood in from the barn his father can carry one and five seven times as much as Jake how many pounds can Jake's father carry

Answers

Answer:

Jake's father can carry 10 and 5/7 lb of wood.

Step-by-step explanation:

Jake carried 6 and 1/4 lb of wood.

Let's convert this to an improper fraction:

6 and 1/4 = (4 * 6 + 1)/4 = 25/4

So, Jake carried 25/4 lb of wood.

Jake's father can carry 1 and 5/7 times as much as Jake.

Let's convert this to a fraction:

1 and 5/7 = (7 * 1 + 5)/7 = 12/7

So, Jake's father can carry 12/7 times as much as Jake.

To find out how many pounds Jake's father can carry, we need to multiply Jake's weight by 12/7:

Jake's father can carry = (25/4) * (12/7)

= (25 * 12) / (4 * 7)

= 300/28

= 10 and 5/7 lb (when simplified to a mixed number)

In a recent year, 27.4% of all registered doctors were female. If there were 42,400 female registered doctors that year, what was the total number of registered doctors?
round answer to nearest whole number

Answers

the total number of doctors that were registered was about 154,744.

In a recent year, 27.4% of all registered doctors were female. If there were 42,400 female registered doctors that year,

Let's call the overall number of licensed physicians "x". We know that there were 42,400 female registered doctors in that year, making up 27.4% of all registered doctors.

To find x, we can construct the following equation:

0.274x = 42,400

x= 42,400 ÷0.274

x ≈ 154,744

Consequently, when rounded to the nearest whole number, the total number of doctors that were registered was about 154,744.

learn more about equation:

https://brainly.com/question/29538993

#SPJ1

A small business was founded by three friends whose capital shares are: Aries-$120, Gemini-$240, and Leo-$360.
Their profit for the week reached $540. The profit will be divided in proportion to their investment.

What percent of the capital shares was invested by Leo?​

Answers

the answer is ($54000) because u do 540x100

Does this table graph identify a linear, quadratic, or an Exponential function
X: -3, -2, -1, 0, 1
Y: 2, 8, 2, 1/2, 1/8

Answers

The table graph X: -3, -2, -1, 0, 1; Y: 2, 8, 2, 1/2, 1/8 identify an exponential function.

To determine if the function represented by this table is linear, quadratic, or exponential, we can look for a pattern in the ratios of consecutive y-values to consecutive x-values.

Ratio of (8-2)/(-2-(-3)) = 6/1 = 6Ratio of (2-8)/(-1-(-2)) = -6/1 = -6Ratio of (1/2-2)/(0-(-1)) = -3/2 = -1.5Ratio of (1/8-1/2)/(1-0) = -3/8The ratios of the consecutive y-values to consecutive x-values do not remain constant, indicating that the function is neither linear nor quadratic.

Furthermore, the ratios decrease or increase depending on the direction of the movement, suggesting that the function is an exponential function.

Hence, we can conclude that the function represented by this table is an exponential function.

To learn more about exponential function, refer:-

https://brainly.com/question/15352175

#SPJ1

PLEASE HELP ASAP ILL GIVE BRAINLY!!!

(a) Write the quadratic regression equation that models the data. Let x = time in seconds

and let y = height in feet. Round all numbers to the nearest hundredth. (b) Use the equation to estimate the height of rocket after Show your work. 3 seconds

Answers

(a) A quadratic equation is in the form: y = -12.87x² + 42.22x + 1.18

(b) The height of the rocket after 3 seconds would be 12.01 feet.

What is a quadratic equation?

A quadratic equation is a polynomial equation with a maximum degree of two. Any equation that can be written in the standard form where x is an unknown value, a, b, and c are known quantities, and a 0 is a quadratic equation.

Here, we have

Given: A rocket is launched upwards from the ground.

(a) A quadratic equation is in the form:

y = -12.87x² + 42.22x + 1.18

(b) When x = 3 seconds

y = -12.87(3)² + 42.22(3) + 1.18

y = 12.01 feet

Hence, the height of the rocket after 3 seconds is 12.01 feet.

To learn more about the quadratic equation from the given link

https://brainly.com/question/30951539

#SPJ1

Answer all the following with work shown

Answers

I hope this helps but i am not sure about the last qn.

Find the coordinates of the circumcenter of the triangle with the given vertices. R(-2,5), S(-6,5), T(-2,-1).

Answers

Answer:

the circumcenter of triangle RST is (-4, 3).

Step-by-step explanation:

To find the circumcenter of a triangle, we need to find the intersection of the perpendicular bisectors of its sides.

Let's first find the midpoints of the sides RS, ST, and RT.

Midpoint of RS:

x-coordinate = (-2 + (-6))/2 = -4

y-coordinate = (5 + 5)/2 = 5

Midpoint of RS is (-4, 5).

Midpoint of ST:

x-coordinate = (-6 + (-2))/2 = -4

y-coordinate = (5 + (-1))/2 = 2

Midpoint of ST is (-4, 2).

Midpoint of RT:

x-coordinate = (-2 + (-2))/2 = -2

y-coordinate = (5 + (-1))/2 = 2

Midpoint of RT is (-2, 2).

Now, let's find the equations of the perpendicular bisectors of RS and ST, and then find their point of intersection.

Perpendicular bisector of RS:

The slope of RS is (5 - 5)/(-6 - (-2)) = 0.

The midpoint of RS is (-4, 5).

So, the equation of the perpendicular bisector of RS is x = -4.

Perpendicular bisector of ST:

The slope of ST is (5 - (-1))/(-6 - (-2)) = -3/2.

The midpoint of ST is (-4, 2).

So, the equation of the perpendicular bisector of ST is y = (-3/2)(x + 4) + 2, which simplifies to y = (-3/2)x - 1.

Now, let's find the point of intersection of these two lines.

x = -4 for the perpendicular bisector of RS, so we substitute that into the equation of the perpendicular bisector of ST:

y = (-3/2)(-4) - 1 = 4 - 1 = 3.

Therefore, the circumcenter of triangle RST is (-4, 3).

Find the probability of numbers lying between 500 and 900 inclusive with exactly two consecutive figures are identical.​

Answers

Answer:

To find the probability of numbers lying between 500 and 900 inclusive with exactly two consecutive figures that are identical, we can use the following steps: Step 1: Count the total number of three-digit numbers between 500 and 900 inclusive. There are 400 three-digit numbers between 500 and 900 inclusive. Step 2: Count the number of three-digit numbers between 500 and 900 that have exactly two consecutive figures that are identical. We can break this down into cases based on the middle digit of the three-digit number. Case 1: The middle digit is not 0 or 9. In this case, there are 8 possible digits that can be used for the middle digit (i.e., 1, 2, 3, 4, 5, 6, 7, or 8). For each possible middle digit, there are

If the equation of the normal to the curve f (X) at the point (2,-1) is X-2 y = 4 , then f (2) =​

Answers

To find the value of f(2), we need to use the equation of the normal to the curve at the point (2,-1). We know that the normal to the curve is perpendicular to the tangent at that point.

From the given equation of the normal, we can determine the slope of the tangent line, which is -1/2.

Now we can use the point-slope form of a line to find the equation of the tangent line to the curve at (2,-1): y + 1 = (-1/2)(x - 2).

To solve for f(2), we need to find the y-coordinate of the point on the curve that lies on this tangent line. We can substitute x=2 into the equation of the tangent line to find the y-coordinate: y + 1 = (-1/2)(2 - 2) => y = -1.

Therefore, f(2) = -1.

Assuming that the confidence coefficient is 90%, then choose from the following concerning the z-value or t-value that would be used in the interval.

Answers

Thus, an interval with such a 90% confidence level has a z-score of 1.645.

Explain about the confidence interval/coefficient:

An interval estimate of the mean is what the confidence limits for mean are. Since the estimation of the mean differs from sample to sample, interval estimates are frequently preferred.

A confidence interval produces a lower and upper limit for such mean rather than a single estimate of the mean. The interval estimate provides a clue as to the degree of uncertainty in our estimation of the true mean. Our estimate is more precise the narrower the interval.A confidence coefficient is used to express confidence boundaries. Although it is somewhat arbitrary to choose a confidence coefficient, 90%, 95%, and 99% intervals are frequently used in practise, with 95% being the most popular.

From the positive z score table:

As 0.90 falls perfectly between the 1.64 and 1.65 z-scores, I shall calculate the z-score as 1.645.

Thus, an interval with such a 90% confidence level has a z-score of 1.645.

know more about the confidence interval

https://brainly.com/question/17097944

#SPJ1

Complete question:

Assuming that the confidence coefficient is 90%, then Find the the z-value that would be used in the interval.

please help me with math i’ll give you brainlist

Answers

B. Each number is 1/6 and you can only get two of the numbers (5and6) so 2/6 which equals 1/3
B) 1/3

Probability of one number is 1/6

There are only two number greater than 4, so:

2/6 = 1/3

The length of the longer leg of a right triangle is 22cm more than six times the length of the shorter leg. The length of the hypotenuse is 23cm more than six times the length of the shorter leg. Find the side lengths of the triangle.

Answers

The length of the shorter leg is 15cm, the length of the longer leg is 6x + 22 = 6(15) + 22 = 112cm, and the length of the hypotenuse is 6x + 23 = 6(15) + 23 = 113cm.

what is triangle?

A triangle is a three-sided polygon with three angles. It is a fundamental geometric shape and is often used in geometry and trigonometry.

Let's denote the length of the shorter leg by "x".

According to the problem statement, the length of the longer leg is 22cm more than six times the length of the shorter leg, so:

longer leg = 6x + 22

Also, the length of the hypotenuse is 23cm more than six times the length of the shorter leg, so:

hypotenuse = 6x + 23

Now, we know that this is a right triangle, so we can use the Pythagorean theorem to relate the side lengths:

shorter leg² + longer leg² = hypotenuse²

Substituting the expressions we found earlier, we get:

x² + (6x + 22)² = (6x + 23)²

Expanding the squared terms and simplifying, we obtain:

x² + 36x² + 264x + 484 = 36x² + 276x + 529

Subtracting 36x² + 276x + 529 from both sides, we get:

x² - 12x - 45 = 0

Now, we can solve for x by factoring the quadratic equation:

(x - 15)(x + 3) = 0

So, either x = 15 or x = -3. Since we're dealing with lengths, we discard the negative solution and take x = 15.

Therefore, the length of the shorter leg is 15cm, the length of the longer leg is 6x + 22 = 6(15) + 22 = 112cm, and the length of the hypotenuse is 6x + 23 = 6(15) + 23 = 113cm.

So the side lengths of the right triangle are 15cm, 112cm, and 113cm.

To learn more about triangle from the given link:

https://brainly.com/question/2773823

#SPJ1

using arithmetic sum formula
Find the sum of the first 6 terms.
2,5,8,11,14,17

Answers

Therefore, the sum of the first 6 terms of this arithmetic sequence is 57.

What is arithmetic sequence?

An arithmetic sequence is a sequence of numbers in which each term is obtained by adding a fixed constant number to the previous term. The fixed constant number is called the common difference (d) of the sequence.

Here,

To find the sum of the first 6 terms of this arithmetic sequence, we can use the arithmetic sum formula:

Sn = n/2 * [2a + (n - 1)d]

where Sn is the sum of the first n terms, a is the first term, d is the common difference, and n is the number of terms.

In this case, we have:

a = 2 (the first term)

d = 3 (the common difference, since each term is 3 more than the previous term)

n = 6 (the number of terms)

Substituting these values into the formula, we get:

S6 = 6/2 * [2(2) + (6 - 1)3]

= 3 * [4 + 15]

= 3 * 19

= 57

To know more about arithmetic sequence,

https://brainly.com/question/15412619

#SPJ1

This is due at midnight can I have some help :>

Answers

The distance between town 1 and 2 is 83 miles

What is word problem?

Word problem in math is a math question written as one sentence or more. This statements are interpreted into mathematical equation or expression.

The distance between Town 1 and 3 is 110 miles and the distance between Town 2 and town 3 is 27miles.

Therefore the distance between town 1 and 2 is the difference between distance between town 1 and 3 and distance between town 2 and 3

This means that distance between town 1 and 2 = 110-27 = 83 miles.

learn more about word problem from

https://brainly.com/question/21405634

#SPJ1

HELP ME PLEASEEE!!!!

Answers

a) False, trapezoids have 4 sides, this shape has 5.

b) True, drawing a line that makes a perfect rectangle will connect the two sides of the trapezoid, dividing it into a rectangle and a trapezoid.

c) False, using the area of a trapezoid :
A = (a+b)/2 • h, a = 6, b = 14, h = 3, the trapezoid’s area is 30 inches squared. Adding this area to the area of the rectangle ( 6 • (7.5-3) = 27 inches squared), the total area is 57 inches squared.

d) False, using the area of a trapezoid A = (a+b)/2 • h, a = 5, b = 10, h = (12-7 = 5), the area of the trapezoid is 37.5 in squared. Adding this area to the area of the rectangle ( 7 • 10 = 70 inches squared), the total area of this shape is 70 + 37.5,
which is 107.5 inches squared.

can somebody please do this with proof?​

Answers

The quadrilateral ANDC is not cyclic because the four vertices of a quadrilateral ANDC do not lie on the circumference of the circle

Proving that ANDC is a cyclic quadrilateral

A cyclic quadrilateral is a four-sided polygon where all four vertices of the quadrilateral lie on a common circle.

The circle is called the circumcircle, and it passes through all four vertices of the quadrilateral.

From the figure, we can see that only two vertices of ANDC lie on the circle

The other two are in the circle

Hence, the quadrilateral ANDC is not cyclic

Read more about cyclic quadrilateral at

https://brainly.com/question/29704807

#SPJ1

i need help with this question

Answers

Answer:(2I3O-9247)

Step-by-step explanation:

Mrs. Vo is going to put wallpaper around her daughter's rectangular bedroom over the summer. What formula is needed to find the amount of border needed?

Answers

Answer: To find the amount of border needed to put wallpaper around a rectangular bedroom, the formula for the perimeter of a rectangle is needed. The formula for the perimeter of a rectangle is:

P = 2l + 2w

where P is the perimeter, l is the length, and w is the width of the rectangle.

Step-by-step explanation:

You want to create a portfolio equally as risky as the market, and you have $1,000,000 to invest. Given this information, fill in the rest of the following table: (Do not round intermediate calculations and round your answers to the nearest whole number, e.g., 32.)

Answers

The portfolio should be invested as follows:

Stock A: $120,000 (12%)

Stock B: $220,000 (22%)

Stock C: $342,857 (34%)

Risk-free asset: $319,149 (32%)

What is statistics?

Statistics is a branch of mathematics that deals with the collection, analysis, interpretation, presentation, and organization of numerical data.

To create a portfolio equally as risky as the market, we need to calculate the portfolio's beta, which is the weighted average of the betas of the individual assets in the portfolio.

The beta of the market is 1, so we need to find the weights of each asset in the portfolio that will result in a beta of 1.

Let wA, wB, and wC be the weights of stocks A, B, and C in the portfolio, respectively. Since we want the portfolio to be equally as risky as the market, we have the following equation:

wA * 1.00 + wB * 1.20 + wC * 1.40 = 1.00

We also know that the total investment is $1,000,000, so we have:

wA * $120,000 + wB * $220,000 + wC * X + (1 - wA - wB - wC) * Y = $1,000,000

where X is the investment in stock C, and Y is the investment in the risk-free asset.

We have two equations and two unknowns, so we can solve for wC and Y:

wC = (1.00 - wA * 1.00 - wB * 1.20) / 1.40

$1,000,000 = wA * $120,000 + wB * $220,000 + wC * X + (1 - wA - wB - wC) * Y

Substituting the first equation into the second equation, we get:

$1,000,000 = wA * $120,000 + wB * $220,000 + [(1.00 - wA * 1.00 - wB * 1.20) / 1.40] * X + [1 - wA - wB - (1.00 - wA * 1.00 - wB * 1.20) / 1.40] * Y

Simplifying and solving for Y, we get:

Y = $319,149

Substituting this value back into the second equation and solving for X, we get:

X = $342,857

Therefore, the portfolio should be invested as follows:

Stock A: $120,000 (12%)

Stock B: $220,000 (22%)

Stock C: $342,857 (34%)

Risk-free asset: $319,149 (32%)

To learn more about statistics from the given link:

https://brainly.com/question/28053564

#SPJ1

a friend has a 84% average before the final exam for a course. That score includes everything but the final, which counts for 30% of the course grade. What is the best course grade your friend can earn?

Answers

Answer:

To determine the best course grade your friend can earn, we need to know how much the final exam is worth. Since the final counts for 30% of the course grade, the remaining 70% must be from the other work completed so far. Let's assume that there's only one final exam and that it's graded out of 100 points. If your friend's current average is 84%, then they have earned 84 points out of every 100 possible points so far. To find the best course grade your friend can earn, we can set up the following equation: 0.7(84) + 0.3(F) = G where F is the score your friend earns on the final exam, and G is the overall course grade. We can solve for G by plugging in F and simplifying the equation: 0.7(

One clay brick weighs 5.03 pounds. The brick is 1 inch long and 2 1/4 inches wide. If the clay weighs 0.07 pounds per cubic inch, what is the volume of the brick? Round your answer to the nearest integer.

Answers

The volume of the clay brick is 2.25 cubic inches and the weight of the clay brick is 0.1575 pounds

The volume of the clay brick, we need to use the dimensions provided. The length of the brick is 1 inch and the width is 2 [tex]\frac{1}{4}[/tex] inches. We can assume the height of the brick is also 1 inch since it is not specified.

The formula for the volume of a rectangular object is

V = lwh

where V is the volume, l is the length, w is the width, and h is the height.

Using the given dimensions, we can calculate the volume of the brick:

V = (1 inch) x (2 [tex]\frac{1}{4}[/tex] inches) x (1 inch)

V = (1 inch) x (2.25 inches) x (1 inch)

V = 2.25 cubic inches

V = 2.25 inches³

Since the density of the clay is given as 0.07 pounds per cubic inch, we can find the weight of the brick using the formula:

Weight = Volume x Density

Weight = 2.25 inches³ x 0.07 pounds/inches³

Weight = 0.1575 pounds

To learn more about volume follow the link: https://brainly.com/question/1578538

#SPJ1

What was the age distribution of prehistoric Native Americans? Suppose an extensive anthropological studies in the southwestern United States gave the following information about a prehistoric extended family group of 84 members on what is now a Native American reservation.
Age range (years) 1-10 11-20 21-30 31 and over
Number of individuals 35 22 20 7
For this community, estimate the mean age expressed in years, the sample variance, and the sample standard deviation. For the class 31 and over, use 35.5 as the class midpoint. (Round your answers to one decimal place.)
x =
years
s2 =
s =
years

Answers

The estimated mean age, sample variance, and sample standard deviation for a prehistoric extended family group of 84 members in the southwestern United States are 14.5 years, 83.5 square years, and 9.1 years, respectively.

To estimate the mean age, we need to calculate the weighted average of each age group's midpoint using their respective frequencies.

The midpoint of the first class (1-10 years) is 5.5, the midpoint of the second class (11-20 years) is 15.5, the midpoint of the third class (21-30 years) is 25.5, and the midpoint of the fourth class (31 and over) is 35.5.

To calculate the weighted average, we multiply each midpoint by its respective frequency, sum these products, and divide by the total number of individuals:

x = [tex]\frac{5.5 x 35 + 15.5 x 22 + 25.5 x 20 + 35.5 x 7}{84}[/tex] = 14.5 years

Therefore, the estimated mean age for this community is 14.5 years.

To calculate the sample variance and sample standard deviation, we first need to calculate the deviation of each observation from the mean. Then, we square each deviation, sum these squared deviations, and divide by n - 1 to get the sample variance.

Using the formula:

s2 = [tex]\frac{\sum_{i=1}^{n}(x_i - \bar{x})^2}{n-1}[/tex]

sample variance as follows:

s2 = [tex]\frac{[(1-10-14.5)^2 \times 35 + (11-20-14.5)^2 \times 22 + (21-30-14.5)^2 \times 20 + (35.5-14.5)^2 \times 7]}{83}[/tex] = 83.5

Therefore, the estimated sample variance for this community is 83.5 square years.

Using the formula:

s = [tex]\sqrt{s2}[/tex]

The sample standard deviation can be calculated as follows:

s = [tex]\sqrt{83.5}[/tex] = 9.1 years

Therefore, the estimated sample standard deviation for this community is 9.1 years.

To learn more about standard deviation, visit:

https://brainly.com/question/30374079

#SPJ1

Other Questions
The slope of a curve is _____.the change in y divided by the change in xthe difference quotientthe slope of a line tangent to the curve at a given pointnone of the above consider the following circuit what is the low pass cutoff frequency? group of answer choices 6.28 khz 15.9 khz 100 khz 628 khz if the real interest rate is expected to become negative, then the purchasing power of savings would be , as the inflation rate is expected to be NEED HELP ASAP PLEASE... This format focuses on an applicants work experience and education: a. chronologicalb. functional c. skills d. electronic Which statement is the best example of a claim? A. Many students at my school speak Spanish. B. All students should learn a foreign language. C. If you know Spanish, it's easier to learn Latin. D. I'm hoping to learn Chinese when I go to high school. when you decide to turn off the bedroom light on your way to the kitchen so that you can save a little money on your electric bill, you are engaging in: Suppose that the functions h and f are defined as follows.[tex]h(x)=\frac{4}{x}, x\neq 0[/tex][tex]f(x)=x^{2} -7[/tex]Find the composition h h and f f.Simplify your answers as much as possible.(Assume that your expressions are defined for all x in the domain of the composition. You do not have to indicate the domain.) Please help solve problem question number 5) if amazon were to open gas stations, it stands to reduce or cut out the share of existing channel intermediaries--a process known as . PLEASE HELP AND SHOW WORK FOR BRAINLIST2. In the diagram below, trapezoid ABCD, withbases AB and DC, is inscribed in circle O, withdiameter DC. If mAB = 80, what is mBC?D80BCDAR? I need HELP!!! ASAP THIS IS DUE IN MINUTES PLEASE Do you buy the Arguments for God's existence from Aquinas (NOT DO YOU BELIEVE IN GOD)? You can find the arguments convincing even if you cannot refute them, and you can believe the argument unconvincing, still believe fundamentally correct. So, what did you think of his arguments? Do you think that these arguments serve any purpose? Historically from approximately 300 to 1800, proofs of God's existent were big philosophical project. They were common and many people made them. However, they are no longer common. Why do you think that we still look at these older arguments? which is a form of fiat money that is commonly used today? responses credit cards credit cards commodity money commodity money digital money digital money nonperishable money movement of the progress bar may be uneven because questions can be worth more or less (including zero) depending on your answerBernice received the following scores on five science tests: 96, 77, 82, 96, and 89. Which of the following statements is true?O The mean of the set is greater than the median.O The mean and median of the set of scores are the same.O The mode of the set of scores is 96.The median of the set of scores is 82. when thinking about constructing cash flows, which scenario is not an opportunity cost that should be accounted for? which of the following statements about the kinetic-molecular theory of gases is false? 1. the average kinetic energy of a gas molecule is independent of the temperature. 2. collisions between molecules are elastic. Read CIO article What is an SLA? Best PracticesRead CIO article 10 do's and dont's for crafting more effective SLAsFind an SLA example. Review it. What suggestions could you give to craft this SLA better (that you learned from the articles above?) How would these suggestions make the SLA more effective?Make sure to list the references. PLS HELP ILL GIVE 2O POINTS ge sells its large appliances directly to home and apartment builders but uses retail stores like lowe's to sell to consumers, in a strategy known as blank . multiple choice question.