When testing the difference between two independent population means, the sample variances are pooled to estimate the population variance when ________. Multiple Choice the population means are known the population variances are assumed equal but unknown the population variances are assumed unequal and unknown the population variances are known and equal

Answer:

The rectangle

which should be the second option

Answer:

option #2 : rectangular

Step-by-step explanation:

option #2 : rectangular, with:

the length = diagonal of cube face

the width = cube edge

The balance in the account of Jayden after 5 years will be $3,886.27.

A loan or deposit's interest is computed using the starting principle and the interest payments from the ago decade as compound interest.

We know that the compound interest is given as

A = P(1 + r)ⁿ

Where A is the amount, P is the initial amount, r is the rate of interest, and n is the number of years.

Jayden invests $2,644.93 in a retirement account with an interest rate of 8% compounded annually. Then the amount after 5 years is calculated as,

A = $2,644.93 x (1 + 0.08)⁵

A = $2,644.93 x (1.08)⁵

A = $2,644.93 x 1.469

A = $3,886.27

The balance in the account of Jayden after 5 years will be $3,886.27.

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Answer:

32:24

Step-by-step explanation:

So ratios are like fractions

You can write 32:24 like \(\frac{32}{24}\)

and 30:22 like \(\frac{30}{22}\)

Like fractions you can simplify them, you want to get the denominator or the bottom numbers the same so you can compare the top number.

\(\frac{32}{24}\)     \(\frac{30}{22}\)     One way to make the denominator the same is to do 24x22=528

then do 32x22=704          then 30x24=720

Then that gives you \(\frac{704}{528} \frac{720}{528}\)    Here you can see that 704 is smaller then 720

and since 704 is the same as 32:24

32:24 is the smaller ratio

Answer:

6 days

Step-by-step explanation:

The computation of the number of days to complete the entire order of purses is shown below:

As according to the question

It takes 2 by 3 for complete of 1 by 9 of a purses order

So the number of days that need to complete the entire order is

\(= \frac{2}{3} \times \frac{9}{1}\\\\= 6\ days\)

Answer:

a = 8 cm

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Equality Properties

Geometry

Volume of a Cube Formula: V = a³

Step-by-step explanation:

Step 1: Define

Identify variables

V = 512 cm³

Step 2: Find a

Answer:

7 {No choices are given}

Step-by-step explanation:

Given problem,

→ (-5) - (-12)

Let's solve the problem,

→ (-5) - (-12)

→ (-5) + 12

→ (-5 + 12) = 7

Thus, the answer is 7.

The length of TU in a trapezoid RSUT is  34 units.

To find the length of TU, we can use the midpoint formula. The midpoint formula states that for a line segment with endpoints (x1, y1) and (x2, y2), the midpoint is ((x1 + x2)/2, (y1 + y2)/2).

In this case, we know that X is the midpoint of line segment RS and V is the midpoint of line segment SU. So we can set up the following equation:

(RS/2) + (SU/2) = 44

Where (RS/2) = (30/2) = 15 and (SU/2) = TU/2

So we can substitute this into the equation and get:

15 + (TU/2) = 44

To find TU, we can solve this equation by multiplying both sides by 2:

TU = 2(44) - 2(15) = 64 - 30 = 34

So the length of TU is 34 units.

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Answer:

Sure, what do you need help with?

Step-by-step explanation:

Send whatever you need help with and I'll see if I can explain it.

To determine the number of gold atoms in the coin, we need to use the molar mass of gold and Avogadro's number. The number of gold atoms in the coin is approximately 1.068 × 10^22 atoms. None of the provided options matches this value.

1. Find the molar mass of gold (Au):

The molar mass of gold is the atomic mass of gold, which can be found on the periodic table. The atomic mass of gold is approximately 197 g/mol.

2. Convert the mass of the coin to moles:

Number of moles = Mass / Molar mass

Number of moles = 3.5 g / 197 g/mol ≈ 0.01777 mol

3. Calculate the number of atoms:

Number of atoms = Number of moles × Avogadro's number

Number of atoms = 0.01777 mol × 6.022 × 10^23 atoms/mol ≈ 1.068 × 10^22 atoms

Therefore, the number of gold atoms in the coin is approximately 1.068 × 10^22 atoms. None of the provided options matches this value.

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The equation \(x^{3} - 3\) has x values as 0, \(\sqrt{3}\) and -\(\sqrt{3}\).

We are given,

3 is subtracted from the cube of a number.

Let the number be x then we can write it as:

 \(x^{3}\) - 3

We are to solve for x.

We can write the equation as:

\(x^{3}\) - 3  = 0

x ( \(x^{2}\)- 3 ) = 0

x = 0 and ( \(x^{2}\) - 3 ) = 0

x = 0 and \(x^{2}\) = 3

x = 0 and x = ±\(\sqrt{3}\)

So we have,

x  = 0, \(\sqrt{3}\) and -\(\sqrt{3}\)

Thus we have x values as 0, \(\sqrt{3}\) and -\(\sqrt{3}\).

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Answer:

$254

$30 + $14x

Step-by-step explanation:

Jayden:

Guaranteed wage= $30

Tips per table = $14

Number of tables = 16

Total revenue = fixed revenue + variable revenue

Fixed revenue= $30

Variable revenue change with quantity= $14 × number of tables Jayden waits on

Total earnings of Jayden for the day = $30 + $14(16)

= $30 + $224

= $254

When Jayden waits on x number of tables

Total earnings of Jayden for the day = $30 + $14(x)

= $30 + $14x

Where x = number of tables Jayden waits on

Answer:

$254

30 + 14t

Step-by-step explanation:

Answer:

306 miles

Step-by-step explanation:

68 divided by 2 is 34

34 times 9 equals

Answer:

306 miles

Step-by-step explanation:

68 divided by 2 = 34

a.k.a. 34 miles a gallon

34 times 9 miles = 306 miles

William's car can travel 306 miles with 9 gallons in its tank.

In a haplodiploid system, the relatedness of a son to a maternal aunt is 75%.

In a haplodiploid system, males develop from unfertilized eggs and are haploid, while females develop from fertilized eggs and are diploid. This means that sons inherit all of their genetic material from their mother, including her alleles from both her haploid sets of chromosomes. Maternal aunts, on the other hand, share one set of haploid chromosomes with their nephew (the son), as they are the sister of his mother. Therefore, the relatedness between a son and his maternal aunt in a haplodiploid system is 0.75 or 75%.

In a haplodiploid system, the relatedness of a son to a maternal aunt can be calculated using the following steps:

1. Determine the relatedness of the son to his mother: In haplodiploid systems, sons are haploid and inherit their single set of chromosomes from their mother. This means that they are 100% related to their mother, as they share all her genes.

2. Determine the relatedness of the maternal aunt to the son's mother: The maternal aunt is a sister of the son's mother. In haplodiploid systems, sisters share 75% of their genes, as they get half of their genes from their mother and the other half from their father (who, as a haploid male, gives all his genes to his daughters).

3. Calculate the relatedness of the son to his maternal aunt: To determine the relatedness of the son to his maternal aunt, multiply the son's relatedness to his mother (100%) by the maternal aunt's relatedness to the son's mother (75%).

Relatedness of son to maternal aunt = (1.0) * (0.75) = 0.75 or 75%

So, in a haplodiploid system, the relatedness of a son to a maternal aunt is 75%.

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Answer:

Yes

Step-by-step explanation:

The events are completely independent of each other because the people were selected at random. There is no context provided that the second person's answer was influenced by the first person.

The value of the function f(-1) is -4

A function is simply described as an equation that explains the relationship between the independent variable and the dependent variable.

From the information given, we have the function;

f(x)=4x^2+9x+9

To determine the value of f(-1)

substitute the value of x as- 1, we get;

f(-1) = 4(-1)² + 9(-1) + 9

expand the bracket, we get;

f(-1) = -4 -9 + 9

Add or subtract the values, we have;

f(-1) = -4

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Answer:

assuming that the equations are equal to zero the answers would be

3   ,   -3    ,  5

Step-by-step explanation:

Answer:

Increasing the sampling error (se) will lead to a larger sample size n.

Step-by-step explanation:

True. When determining the sample size n for the purpose of estimating a population mean, a fixed level of confidence (1-alpha) and population standard deviation are typically specified.

The sampling error (se) represents the maximum distance between the sample mean and the true population mean, which is typically set to a desired level of precision.

As the sampling error decreases (i.e., more precision is desired), the sample size n needs to increase in order to achieve the same level of confidence.

Therefore, increasing the sampling error (se) will lead to a larger sample size n.

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The percent increase in the cost of the uniform from last year to this year is 25%.

To find the percent increase in the cost of the uniform from last year to this year, we need to calculate the difference between the two prices, divide it by the original price, and then multiply by 100 to express the result as a percentage.

The difference between this year's price and last year's price is:

$65 - $52 = $13

The original price (last year's price) is $52.

So the percent increase in the cost of the uniform is:

percent increase = (difference / original price) x 100

percent increase = ($13 / $52) x 100

percent increase = 0.25 x 100

percent increase = 25%

Therefore, the percent increase in the cost of the uniform from last year to this year is 25%.

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Step-by-step explanation:

Answer:

54,436.004 and 247,892.984

Step-by-step explanation:

Answer:

third and fourth

Step-by-step explanation:

Dehaun spent 7/10 hours doing these two assignments.

What is meaning of assignment?

An assignment is a task or piece of writing that is handed to you to complete, typically as a requirement for a job or academic course.

What is a fraction number?

In mathematics, a fraction is used to denote a portion or component of the whole. It stands for the proportionate pieces of the whole. Numerator and denominator are the two components that make up a fraction. The numerator is the number at the top, and the denominator is the number at the bottom.

Given that,

Dehaun  finished his math assignment in 1/2 hour.

Also he did finish his history assignment in 1/5 hour.

To compute total assignment, add the times.

The total time that he spent to complete the assignment is

1/2 + 1/5

The L.C.M of 2 and 5 is 10.

=(5 + 2)/10

= 7/10

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The value of $m$ is $43$.

The equation $6^{-1}\equiv 6^2\pmod m$ implies that $6^{-1}$ is a valid inverse of $6$ modulo $m$. This means that multiplying $6^{-1}$ by $6$ must result in the remainder $1$ when divided by $m$.

To find the value of $m$, we can then set up the equation:

                                $0\equiv 215\pmod m$

and find all possible values of $m$ that make this equation true.

Multiplying $6^{-1}\equiv 6^2\pmod m$ by $6$, we get $1\equiv 6^3\pmod m$, so $0\equiv 215\pmod m$. So, $m$ must be a divisor of $215$. The only 2-digit divisor of $215$ is $43$.

Therefore, $m$ is a two-digit number, the only possible value of $m$ is $43$.

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Answer:  

A boxplot is a way to show a five number summary in a chart. The main part of the chart (the “box”) shows where the middle portion of the data is: the interquartile range. At the ends of the box, you” find the first quartile (the 25% mark) and the third quartile (the 75% mark). The far left of the chart (at the end of the left “whisker”) is the minimum (the smallest number in the set) and the far right is the maximum (the largest number in the set). Finally, the median is represented by a vertical bar in the center of the box.

Box plots aren’t used that much in real life. However, they can be a useful tool for getting a quick summary of data.

How to Read a Box Plot: Steps

Step 1: Find the minimum.

The minimum is the far left hand side of the graph, at the tip of the left whisker.  

Step 2: Find Q1, the first quartile.

Step 3:  Find the median.

Step 4: Find Q3, the third quartile.

Step 5: Find the maximum.

hope this helps!!

Answer:

8.04050632911

Step-by-step explanation:

Answer:

The answer is 20

I hope this helps

In a case whereby Mr. Ahmed has 31 students in his class. There are 14 boys and 17 girls.

From the question we were told that there are 14 boys in the class wehereby there the whole class has 31 students

Then we can conclude that te  ratio of the part-to-whole relationship for boys= 14/31.

From the question, there are 17 girls in the class, then we can conclude that  the ratio of the part-to-whole relationship for girls = 17/31.

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complete question:

Mr. Ahmed has 31 students in his class. There are 14 boys and 17 girls.

The ratio

describes the part-to-whole relationship for boys.

The ratio

describes the part-to-whole relationship for girls.

The answer of the given question based on the triangle is (a) the coordinate is given wrong so it does not for any equilateral triangle, (b) the steps are given below to draw equilateral triangle.

A line segment is  part of  line that is bounded by two distinct endpoints. It can be measured by its length, which is the distance between its endpoints. A line segment is a straight line that extends between its endpoints, but it does not continue indefinitely in either direction.

Draw a segment (6,9,12) centimeters long. Then from one endpoint, draw a (30,60,90) ° angle.

Neither of these steps is correct for drawing an equilateral triangle with all sides equal to 6 centimeters.

To draw an equilateral triangle, we can follow these steps:

Draw a straight line segment of 6 centimeters.

At one endpoint of the segment, use a compass to draw a circle with a radius of 6 centimeters. This will be the circle that intersects the other endpoint of the segment.

Without changing the compass width, place the compass on the other endpoint of the segment and draw a second circle of radius 6 centimeters.

Draw a straight line segment connecting the two points where the circles intersect.

This will create an equilateral triangle with all sides equal to 6 centimeters.

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Answer:

A.) combinations of the hours he can work at the two jobs and earn at least $300

Step-by-step explanation:

Answer:

A.

Step-by-step explanation:

Answer:

add words please

Step-by-step explanation:

i cant understand that ppic