At a family bbq, there were 38 hamburgers and 24 hot dogs. by the end of
the night, there were 19 hamburgers and only 3 hot dogs left. what percent
of the hot dogs were left? (hint: first make a fraction, change the fraction
to a decimal by dividing, and then change the decimal to a percent).

The names of 0 employees are written on 0 cards. the cards are placed in a​ bag, and three names are picked from the bag - here simple random sampling technique was used.

Basic irregular testing can provide you with an extremely precise image of how your motto performs with the typical individual, yet it won't give you nitty gritty data about unambiguous gatherings. Utilizing straightforward irregular testing permits scientists to make speculations about a particular populace and leave out any inclination. This can assist with deciding how to settle on future choices. It has been expressed that "the rationale behind straightforward arbitrary examining is that it eliminates predisposition from the choice method and ought to bring about delegate tests".

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Answer: Thought I’d return the favor and help u with this question! But anyways, the axis of symmetry is at x = -3.

Explanatio: This can be found by looking at the basic form of vertex form:

y = (x - h)^2 + k

In this basic form the vertex is (h, k). By looking at what is plugged into the equation, it is clear that h = -3 and k = -4. This means the vertex is at (-3, -4).

It is a fact that the axis of symmetry is a vertical line of x = (vertex value of x). So we can determine that the axis of symmetry is at x = -3

i hope this helps u

Answer:

x=15, y=7

Step-by-step explanation:

Angles that form a linear pair are supplementary, so:

\(2(5x-5)+3x-5=180 \\ \\ 10x-10+3x-5=180 \\ \\ 13x-15=180 \\ \\ 13x=195 \\ \\ x=15 \\ \\ \\ \\ 5y+5+20y=180 \\ \\ 25y+5=180 \\ \\ 25y=175 \\ \\ y=7\)

Answer:

7. To perform a t-test when the sample size is small, the sample must show no evidence of strong skewness and must contain no outliers.

Step-by-step explanation:

These are the two conditions required for performing a t test

- Sample Size: A small sample size can reduce the statistical power of a t-test, making it more challenging to detect significant differences between groups. Generally, a larger sample size is desirable to obtain more reliable and representative results.

- Skewness: Skewness refers to the asymmetry of the distribution of data. In a t-test, assuming normality of the data is important for accurate results. If the data exhibits strong skewness, the assumption of normality may be violated. In such cases, alternative non-parametric tests or transformations of the data may be more appropriate.

- Outliers: Outliers are extreme values that significantly differ from the rest of the data. They can have a disproportionate impact on the results of a t-test, particularly when the sample size is small. Outliers can distort the mean and affect the assumptions of normality and homogeneity of variance.

While the presence of skewness or outliers does not prohibit the use of a t-test with a small sample size, it is important to interpret the results with caution and consider alternative approaches if necessary. Robust statistical methods, such as non-parametric tests or bootstrapping, can be useful when dealing with non-normal or outlier-prone data, especially with small sample sizes. Additionally, visual inspection of the data distribution, such as through histograms or box plots, can help identify potential skewness or outliers.

Answer:

180 most likely

Answer:To evaluate the exponential expression 6(4+2)² - 32, we need to follow the order of operations, which is parentheses, exponents, multiplication and division (from left to right), and addition and subtraction (from left to right).

First, we simplify the expression inside the parentheses:

4 + 2 = 6

Next, we square the result:

6² = 36

Now, we substitute the squared result back into the expression:

6(36) - 32

Next, we perform the multiplication:

6 * 36 = 216

Finally, we subtract 32:

216 - 32 = 184

Therefore, the value of the given exponential expression 6(4+2)² - 32 is 184.

The coordinates of the image of the shape A with vertices at (2, 3), (4, 7), (8, 3), and (-2, -5) enlarged by a scale factor 2 with centre of enlargement at (-2, -5) are (0, -1), (2, 1), (4, -1), and (-4, -9).

Given a shape A with vertices at (2, 3), (4, 7), (8, 3), and (-2, -5) and a scale factor of 2 with a centre of enlargement at (-2, -5), the coordinates of the vertices of the image are (0, -1), (2, 1), (4, -1), and (-4, -9).

We can calculate the new coordinates of the vertices by multiplying the scale factor with the differences between the coordinates of the vertices and the coordinates of the centre of enlargement, then adding the coordinates of the centre of enlargement to the product.

For example, the x and y coordinates of the first vertex (2, 3) are (2, 3) and the centre of enlargement is (-2, -5). So, the difference between the two is (2 - (-2), 3 - (-5)) = (4, 8). Multiplying the scale factor 2 with the differences gives (4 * 2, 8 * 2) = (8, 16). Adding the centre of enlargement to the product gives (8 + (-2), 16 + (-5)) = (6, 11). Therefore, the coordinates of the image of the first vertex is (6, 11).

Similarly, for the second, third, and fourth vertices, the coordinates of the image are (4, 5), (8, 1), and (-4, -9) respectively.

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Step-by-step explanation:

please mark me as brainlest

Answer:

for profit percentage

p% =(sp-cp/cp)×100%

=(25-20/20)×100%

=25%

The profit percentage is 25%

Answer: D

Step-by-step explanation: -7 is not included in the shaded part of the inequality

Answer:

Step-by-step explanation:

-2w-7.25<-3.25 add 7.25 to both sides

-2w< 4  divide by -2

w< -2

W has to be smaller than -2

The smaller than -2 is -7. So all the others are not.

The measure of angle x is 70°.

Here we have the image of some triangles, and we want to find the value of the interior angle x in the left triangle.

What you need to remember here is that the sum of the interior angles of any triangle is always equal to 180°.

Then, for the left triangle, we can write:

30° + 80° + x° = 180°

Now we can solve that equation for x, then we will get:

x° = 180° - 80° - 30°

x = 70°

That is the measure of angle x.

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Answer:

.

Step-by-step explanation:

https://byjus.com/maths/rational-and-irrational-numbers/

check it bro

Step-by-step explanation:

multiply 2×3 to get 6 and then multiply 6×4

or

multiply 3×4 to get 12 and then multiply 12×2

Answer:

Putting all the x's to one side.

Step-by-step explanation:

By doing this, you would get:

10 = 2.5x

so,

4 = x

Answer:

We subtract 5x from both sides

Step-by-step explanation:

Step 1:  Subtract 5x from both sides

\(5x + 10 = 7.5x\)

\(10 + 5x - 5x = 7.5x - 5x\)

\(10 = 2.5x\)

Step 2:  Divide both sides by 2.5

\(\frac{10}{2.5} = \frac{2.5x}{2.5}\)

\(4 = x\)

Answer:  We subtract 5x from both sides

Answer:

The scale factor of a dilation is 3.

Step-by-step explanation:

Given the length ST of the rectangle RSTU

The length ST of the rectangle = 8 units

It is clear that the corresponding length S'T' = 23 is 3 times the length of the original length ST = 8

i.e.

S'T' = 3(ST)

S'T' = 3(8)      ∵ ST = 8

S'T' = 24

It indicates that the RSTU has been dilated by a scale factor of 3.

As the scale factor 3 > 1, it also indicates that the dilated rectangle R'S'T'U is enlarged.

Therefore, the scale factor of a dilation is 3.

So the right answer is √314 units.

Look at the attached picture

Hope it will help you

Good luck on your assignment

To add fractions with unlike denominators, follow these steps: find a common denominator, convert the fractions to have the common denominator, add the numerators, simplify (if necessary), and convert to a mixed number or decimal if desired.

Adding fractions with unlike denominators requires finding a common base for both fractions. This common denominator ensures that the fractions can be added together. Once the fractions have the same denominator, add the numerators together while keeping the denominator unchanged. Simplify the resulting fraction if possible by dividing both the numerator and denominator by their greatest common divisor. Finally, you can choose to express the fraction as a mixed number (whole number and proper fraction) or a decimal, depending on the preferred form of the result.

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The representation of this situation where, x represents the number of hours worked is C = 12r = x * r

In its simplest form in algebra, the definition of an equation is a mathematical statement that shows that two mathematical expressions are equal. For instance, 3x + 5 = 14 is an equation, in which 3x + 5 and 14 are two expressions separated by an 'equal' sign.

We are given that;

Number of hours of work= 12hours

Now,

One way to represent this situation using an equation is:

12 = x

This equation states that the amount of money Terra earns from working x hours is equal to the total cost of all the gifts on her list. However, this equation assumes that Terra earns enough money in one hour to pay for all the gifts, which may not be realistic. It also doesn't take into account the hourly rate of pay that Terra receives.

A more realistic equation might be:

total cost of gifts = hourly rate of pay * number of hours worked

If we let C represent the total cost of all the gifts and r represent Terra's hourly rate of pay, then we can write:

C = 12r

This equation states that the total cost of all the gifts is equal to Terra's hourly rate of pay multiplied by the number of hours she works. In this case, x would represent the number of hours worked and would satisfy the equation:

C = 12r = x * r

Therefore, by equations the answer would be C = 12r = x * r.

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0.338 is the answer

hope this helped

Based on the information, the combined thickness will be 0.3338.

From the information given, we are told to find the combined thickness of these shims: 0.008, 0.125, 0.15, 0.185 and 0.005 cm.

This simply means that we need to add the decimals. This will be:

= 0.008 + 0.125 + 0.15 + 0.185 + 0.005

= 0.3338 cm

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Answer:

ya u chose well it is because you are using stratwgy

Answer:

1. 8 × X = 8 × 3 = 24.

2. y / 2 = 6 / 2 = 3.

Answer:

19

Step-by-step explanation:

A' represents everything out A

B' represents everything out B

C' represents everything out C

So only the outside is left hope this helps

Answer:

x = 90

Step-by-step explanation:

The diagram shows that angles 1 and 4 correspond with each other. Given that the two lines should be parallel, corresponding angles have the same answer. When corresponding angles cross at the same relative location (known as the junction), they will have the same angle measure.

So, set the 1st and 4th angles equal to each other.

3x-160 = x+20

2x = 180

x=90

Answer:x=90

Step-by-step explanation:Angles 1 and 4 must be equal to each other, as they are corresponding angles, so you set 3x-160 equal to x+20 and after solving, you get x is equal to 90.

The inequality that represents the combined area of the garden and walkway is 4w² + 36w + 64 ≤ 100 square feet

To solve this problem, we'll break it down into smaller components. Let's start by finding the area of the walkway. Frankie mentioned that the walkway measures 2 feet by 8 feet. To find the area of a rectangle, we multiply its length by its width. Therefore, the area of the walkway can be calculated as:

Area of walkway = Length of walkway × Width of walkway

= 2 feet × 8 feet

= 16 square feet

Next, let's assume that the width of the garden surrounding the walkway is represented by a variable, 'w'.

To calculate the total width of the garden with the walkway included, we need to add two widths of the garden to each side of the walkway. Thus, the total width of the garden with the walkway can be expressed as:

Total width of garden = Width of walkway + 2w + Width of walkway

= 2w + 2 × Width of walkway

= 2w + 2 × 8 feet

= 2w + 16 feet

Similarly, the total length of the garden can be expressed as:

Total length of garden = Length of walkway + 2w + Length of walkway

= 2w + 2 × Length of walkway

= 2w + 2 × 2 feet

= 2w + 4 feet

Now, to find the area of the garden with the walkway included, we multiply the total length by the total width:

Area of garden with walkway = Total length of garden × Total width of garden

= (2w + 4 feet) × (2w + 16 feet)

= 4w² + 36w + 64 square feet

Finally, Frankie wants the total area of the garden with the walkway to be no greater than 100 square feet. This means that the area of the garden with walkway must be less than or equal to 100 square feet. We can express this as an inequality:

Area of garden with walkway ≤ 100 square feet

Combining all the information and calculations, the inequality that represents the combined area of the garden and walkway is:

4w² + 36w + 64 ≤ 100 square feet

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First, we can start input small whole numbers in the function to see if we get a whole number. Let's try with 0, 1 and 2:

None of those values worked. Let's try negative integers, such as -1 and -2:

We get integer coordinates if we use negative integers. Then, we need at least 5 points. Let's use x = -1, -2, -3, -4, -5

We have the points:

(-1, -8), (-2, -7), (-3, -5), (-4, -1) and (-5, 7)

If we locate them in the cartesian plane:

And now, we can estimate the graph. An exponential function where the base is smaller than 1, describes an exponential decay, and the term "-9" is applying a shift 9 units down, and also y = -9 is a horizontal asymptote. With all this and the points we just found:

Para calcular la razón de la siguiente progresión geométrica, primero necesitamos entender qué es una progresión geométrica. Una progresión geométrica (PG) es una secuencia de números en la que cada término después del primero se obtiene multiplicando el término anterior por una constante llamada razón.

Es decir, si a es el primer término y r es la razón, entonces los términos de la PG serán:a, ar, ar^2, ar^3, ar^4, ...La razón se calcula dividiendo cualquier término de la PG por su término anterior.

En este caso, tenemos la PG 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, ..., en la que el primer término es 4. Para calcular la razón, elegimos cualquier término después del primero y lo dividimos por su término anterior. Por ejemplo, si elegimos el quinto término (64), la razón será:64/32 = 2Por lo tanto, la razón de esta PG es 2.

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The exact area of each hexagonal shape is 181.5sqrt(3) cm^2. Option B

To determine the exact area of each hexagonal shape formed by the equilateral triangles, we need to calculate the area of one equilateral triangle and then multiply it by the number of triangles that make up the hexagon.

The formula to calculate the area of an equilateral triangle is:

Area = (sqrt(3) / 4) * side^2

Given that the side of each tile measures 11 cm, we can substitute this value into the formula to find the area of one equilateral triangle:

Area = (sqrt(3) / 4) * (11 cm)^2

= (sqrt(3) / 4) * 121 cm^2

= 121sqrt(3) / 4 cm^2

Now, since the hexagon is formed by six equilateral triangles, we can multiply the area of one triangle by 6 to find the total area of the hexagon:

Hexagon Area = 6 * (121sqrt(3) / 4 cm^2)

= 726sqrt(3) / 4 cm^2

= 181.5sqrt(3) cm^2

Therefore, the exact area of each hexagonal shape is 181.5sqrt(3) cm^2.

The correct answer is B: 181.5√3 cm^2.

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The required, Mmusi borrowed R3000 from Aggie as per the given conditions.

Simple interest is a quick and simple formula for figuring out how much interest will be charged on loan.

Amount = Principal [1 + rate×time]

Let's call the amount Mmusi borrowed from Aggie "P".

After two years, he has to pay back
= P + P * 18% * 2
= P + 0.18 * P * 2
= P + 0.36P
= 1.36P

So if he has to pay back R4080, we can set up an equation to solve for P:

1.36P = 4080

To find P, we can divide both sides by 1.36:

P = 4080 / 1.36 = 3000

So Mmusi borrowed R3000 from Aggie.

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