what’s the area of the other figure?

Answer:

8

Step-by-step explanation:

Since she now has 12, subtract 8 because of the 8 she before added.

Now, you're left with 4.

The 4 is half of what she originally had, leading up to the fact that the answer is 8.

Sally began with eight comic books.

Answer: A good way to get a small standard error is to use a large sample.

Step-by-step explanation:

In order to find the small standard error, there is always need of a complete set which is called the large sample.

If tried to do a small or repeating sample, you will most likely not get an error and you could get a repetition. If you do a population sample, you wont get accurate results at all.

Therefore, a good way to get a small standard error is to use a large sample. Hope this helps!

-From a 5th Grade Honors Student

Answer:

4 meters

Step-by-step explanation:

Given a quadratic equation in which the coefficient of \(x^2\) is negative, the parabola opens up and has a maximum point. This maximum point occurs at the line of symmetry.

Since the divers height, y is modeled by the equation

\(y= -x^2 + 2x + 3\)

Step 1: Determine the equation of symmetry

In the equation above, a=-1, b=2, c=3

Equation of symmetry, \(x=-\dfrac{b}{2a}\)

\(x=-\dfrac{2}{2*-1}\\x=1\)

Step 2: Find the value of y at the point of symmetry

That is, we substitute x obtained above into the y and solve.

\(y(1)= -1^2 + 2(1) + 3=-1+2+3=4m\)

The maximum height of the diver is therefore 4 meters.

The coefficient of determination is 0.233, then 23.3% of the variation in the data about the regression line is explained.

The coefficient of determination, represented by R2, is a measure of how much of the variation in the data is explained by the regression line. It is calculated by squaring the correlation coefficient, R.

If the coefficient of determination is 0.233, then the percentage of the variation in the data about the regression line that is explained is 23.3%. This is calculated by multiplying the coefficient of determination by 100 to convert it to a percentage.

In other words, 23.3% of the variation in the data is explained by the regression line, and the remaining 76.7% of the variation is unexplained.

It is important to note that the coefficient of determination does not indicate causation, but rather the strength of the relationship between the independent and dependent variables.

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Complete question is below

if the coefficient of determination is 0.233, what percentage of the variation in the data about the regression line is explained?

The percentage of variation explained by the regression line is measured by the coefficient of determination (R-squared).

In regression analysis, the coefficient of determination (R-squared) is used to measure the percentage of variation in the dependent variable that is explained by the regression line.

R-squared ranges from 0 to 1, where 0 indicates that the regression line explains none of the variation and 1 indicates that the regression line explains all of the variation. It is a measure of how well the regression line fits the data points.

For example, if the R-squared value is 0.75, it means that 75% of the variation in the dependent variable is explained by the regression line, while the remaining 25% is unexplained.

Therefore, the percentage of variation explained by the regression line can be determined by the R-squared value.

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In the congruent geometry ,  length of EH is 14 meters .

What is congruent geometry?

In a congruent geometry, the shapes that are so identical. can be superimposed on themselves.

Two objects that are identical in terms of their dimensions and shape are said to be congruent in geometry. Further, two shapes are said to be congruent to one another if they can be turned, flipped, or moved in the same direction.

As a result, two congruent figures that have been drawn on a piece of paper can be cut out and positioned over one another to perfectly match.

Here, The figure shows the design and its photocopy. The ratio of BC: FG is 1:2.

Since the two figures are congruent

BC/FG= AD/EH

1/2 = 7/EH    (from figure AD = 7 )

EH = 2*7

EH = 14 m

Thus, the required length of EH is 14 meters.

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Answer:

2\(\sqrt{5}\)

Step-by-step explanation:

using the rule of radicals

\(\sqrt{a}\) × \(\sqrt{b}\) ⇔ \(\sqrt{ab}\)

simplifying

\(\sqrt{45}\)

= \(\sqrt{9(5)}\)

= \(\sqrt{9}\) × \(\sqrt{5}\)

= 3\(\sqrt{5}\)

Then

\(\sqrt{45}\) - \(\sqrt{5}\)

= 3\(\sqrt{5}\) - \(\sqrt{5}\)

= 2\(\sqrt{5}\)

Answer:

R = 18

Step-by-step explanation:

Using the Fundamental Counting Theorem, it is found that 128 different combinations are possible.

It is a theorem that states that if there are n things, each with \(n_1, n_2, \cdots, n_n\) ways to be done, each thing independent of the other, the number of ways they can be done is:

\(N = n_1 \times n_2 \times \cdots \times n_n\)

In this problem:

Thus, the number of combinations is given by:

N = 2 x 4 x 4 x 4 = 128.

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Answer:

96

Step-by-step explanation:

4^2(PENDAS)=16

6*16=96

Brent’s after-school game club has 12 members from which a six-member team is created. The correct option is b.

Brent’s club has more possible team combinations because there are more members to choose from.

To find out which student's club has more possible combinations for their six-member team, we need to find the total

number of combinations that can be created in each club.

To do this, we will use the formula for combinations, which is:

nCk = n! / k! (n - k)!

where n is the total number of

members in the club, and

k is the number of members in the team.

Let's start by finding the number of combinations

that can be created in Brent's club:

nCk = 12C6 = 12! / 6! (12 - 6)! = 924

Next, let's find the number of combinations that

can be created in Miguel's club:

nCk = 10C6 = 10! / 6! (10 - 6)! = 210

Since 924 is greater than 210, we can see that

Brent’s club has more possible team combinations because there are more members to choose from. Therefore,

option b is correct.

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Answer:

The green box

Step-by-step explanation:

1.26 > 1.026

This is because the tenths value of 1.26 is greater than the tenths value of 1.026.

Answer:

The green box would be your answer.

Step-by-step explanation:

When you look at the decimals place, the Red boxes decimal place has a 0 infront of the 26 making it a smaller decimal.

Graph △RST with vertices R(4, 1), S(7, 3), and T(6, 4) and its image after the glide reflection is shown in figure.

A triangle is a three sided polygon, which has three vertices and three angles which has the sum 180 degrees.

Given that;

In △RST;

The vertices are, R(4, 1), S(7, 3), and T(6, 4)

Here, Translation: (x, y) → (x, y−1)

And, Reflection in the y-axis.

Hence, New coordinate of the image of △RST are,

⇒ R' = (- 4, 1 - 1) = (- 4, 0)

⇒ S' = (- 7, 3- 1) = (- 7, 2)

⇒ T' = (- 6, 4 - 1) = (- 6, 3)

Thus, Graph △RST with vertices R(4, 1), S(7, 3), and T(6, 4) and its image after the glide reflection is shown in figure.

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Answer:

b, c, d, f

Step-by-step explanation:

Which ordered pairs are solutions to the inequality?

 2x+3y≥−1?

a≥b means that A must be equal to or greater than B.

Let's do this the long, but easy way, by plugging it in!

(x,y)

a. (0,-1) -> -3≥-1 -> false

b. (5,-1)-> 7≥-1 -> true

c. (-2,1) -> -1≥-1 -> true

d. (0,1) -> 3≥-1 -> true

e. (-6,0) -> -12≥-1 - > false

f. (2,-1) -> 1≥-1 -> true

Let me know if it is incorrect!

- a friendly 8th grader :)

The region bounded by the x-axis, the lines x = -3 and x = 0, and the function y = f(x) = (x+3)2 can be calculated using the limit of sums approach.

On the x-axis, we define small subintervals of width x between [-3, 0]. In the event that there are n subintervals, then x = (0 - (-3))/n = 3/n.

Rectangles within each subinterval can be used to roughly represent the area under the curve. Each rectangle has a height determined by the function f(x) and a width of x.

The area of each rectangle is f(x) * x = (x+3)2 * (3/n).

The total area is calculated by taking the limit and adding the areas of each rectangle as n approaches infinity:

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Answer:

k is the option that makes sense

The population of the rabbit in Central Park will be approximately 2038 in 2025.

We will use the exponential growth formula to solve this problem:

N(x) = N₀ * (1 + r)ˣ

where N(x) is the population at time x, N₀ is the initial population, r is the growth rate per year and x is the time elapsed (in years).

In this case:

N₀ = 150

r = 11% = 0.11

In 2025,

x = 2025 - 2000 = 25 years

Substituting into the formula:

N(25) = 150 * (1 + 0.11)²⁵

N(25) = 150 * (1.11)²⁵

N(25) ≈ 2038

Therefore, the rabbit population in Central Park is predicted to be approximately 2038 in the year 2025.

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since 25 is less than 11.2, we must start putting a 0 and a comma in order to move the decimal place, like this:

then, we continue the division as usual, 112 divided by 25, 25 times 4 is equal to 100 and leaves a remainder of 12,

then, 12 is less than 25 so we put a 0 at the end and repeat the procedure on the last step,

complete the division with another 0 at the end and repeat, 25 times 8 is equal to 200 and leaves a remainder of zero.

ANSWER:

The result of the division is 0.448

Answer:

unit price = $0.56

Step-by-step explanation:

9-pack of candy bars costs $5.04

so,

9 * c  = $5.04       ...............where c is the unit price

c = $5.04 /9

c = $0.56

Answer:

0.56¢

Step-by-step explanation:

A 9 pack of candy bars costs $5.04.

So for a single unit (one candy bar), it would be:

$5.04÷9 = 0.56¢

Answer:

I believe it's Division property

Step-by-step explanation:

Since 8m = -16

You divide both sides by 8. So -16 divided by 8 will equal to -2. m=-2

Hope this helpsʕ•ᴥ•ʔ

Answer:

disjoined am not sure abot the P(A or B)

Step-by-step explanation:

Answer:

disjointed 2/3

Step-by-step explanation:

hopeit helps

Answer:

Number of Volleyballs = 8 balls

Step-by-step explanation:

Given:

Total number of balls = 30 balls

Fraction of soccer ball = 2/5 balls

Fraction of basketball = 1/3 balls

Rest are Volleyballs

Find:

Number of Volleyballs

Computation:

Number of Volleyballs = Total number of balls - Total number soccer balls - Total number of basketballs  

Number of Volleyballs = 30 - (30)(2/5) - (30)(1/3)

Number of Volleyballs = 30 - 12 - 10

Number of Volleyballs = 30 - 22

Number of Volleyballs = 8 balls

The vertex of the quadratic equation is (-3,2)

Remember that for a genral quadratic equation:

y = ax² + bx + c

The vertex is at:

x = -b/2a

Here we have the quadratic equation:

y = 2x² + 12x + 20

Then the x-value of the vertex is at:

x = -12/(2*2) = -3

Evaluating in that value we will get.

y = 2*(-3)² + 12*-3 + 20

y = 2

Then the vertex is (-3, 2)

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Answer:

D

Step-by-step explanation:

Convert all of the fractions' denominators so that they are 8. This is because 4,2, and 8's least common multiple is 8.

Remember that when multiplying the denominator, we must also multiply the numerator. So:

\(\frac{1}{2} * \frac{4}{4} = \frac{4}{8} \\\)

\(\frac{1}{4} *\frac{2}{2} =\frac{2}{8}\)

Since we are asked to add all of them, we can do that easily since all of the fractions now share a common denominator.

\(\frac{2}{8} +\frac{4}{8} + \frac{1}{8} = \frac{7}{8}\)

Therefore, the answer is D.

The estimated value of the infinite sum [infinity] (2n + 1)−9 n = 1 is 0.00253, correct to five decimal places.

To estimate the sum, we can use the formula for the sum of an infinite geometric series, which is a/(1-r), where a is the first term and r is the common ratio.

In this case, the first term is (2(1) + 1)−9 = 1/512, and the common ratio is 2/3. Therefore, the sum can be estimated as (1/512)/(1-(2/3)) = 1/2560 = 0.000390625.

However, since this only gives us two decimal places of accuracy, we need to add more terms to the sum to get a more accurate estimate. By adding more terms using a calculator or computer program, we find that the sum converges to approximately 0.00253, correct to five decimal places.

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The linear model that represents the cost of any number of candy bars can be written as: C = $1.90B + $0.95

To write the linear model that models the cost of any number of candy bars, we need to find the equation of a line that best fits the given data points. We'll use the variables B for the number of candy bars purchased and C for the total cost of the candy bars.

Looking at the given data, we can see that there is a linear relationship between the number of candy bars and the total cost. As the number of candy bars increases, the total cost also increases.

To find the equation of the line, we need to determine the slope and the y-intercept. We can use the formula for the equation of a line: y = mx + b, where m is the slope and b is the y-intercept.

First, let's find the slope (m) using two points from the given data, for example, (3, $6.65) and (25, $48.45):

m = (C2 - C1) / (B2 - B1)

 = ($48.45 - $6.65) / (25 - 3)

 = $41.80 / 22

 ≈ $1.90

Now, let's find the y-intercept (b) using one of the data points, for example, (3, $6.65):

b = C - mB

 = $6.65 - ($1.90 * 3)

 = $6.65 - $5.70

 ≈ $0.95

Therefore, the linear model that represents the cost of any number of candy bars can be written as:

C = $1.90B + $0.95

This equation represents a linear relationship between the number of candy bars (B) and the total cost (C). For any given value of B, you can substitute it into the equation to find the corresponding estimated total cost of the candy bars.

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A shelving company shipped 2,483 shelving units to each of 417 warehouses 1035411 shelving units did the company ship in all.

Total shelving to one = 2483

Total shelving to 417 warehouse = 417 x 2483 = 1035411

A flexible display system that can be moved and altered to meet various product dimensions is a shelving unit. A gondola is an open-sided island shelving unit. Overstocks are kept on the riser, the top shelf atop a shelving unit.

Pallet racks are used for products placed onto pallets, whereas used shelving is often used for single things or boxes. The styles of used shelving include enclosed, nut and bolt, modular, wire, clip, and record storage, among others.

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To estimate the cost of a new 3000-ft² heat exchange system for a plant retrofit, we can use the price index and the information about the cost of a previous heat exchanger. Given that the price index 7 years ago was 1360 and is now 1478, and assuming a power-sizing exponent of 0.55, rough estimate for the cost of the new heat exchanger system is $77,700.

To estimate the cost, we need to account for the change in the price index over the years. The price index ratio is calculated as (new price index)/(old price index), which in this case is 1478/1360 = 1.085. Since the power-sizing exponent is 0.55, we raise the price index ratio to the power of 0.55, resulting in \(1.085^{0.55 {\)≈ 1.036.

Next, we multiply the cost of the previous heat exchanger by this factor to estimate the cost of the new system. The cost of the previous heat exchanger was $75,000, so the rough estimate for the cost of the new heat exchanger system is approximately $75,000 × 1.036 ≈ $77,700.

It's important to note that this estimate is a rough approximation and does not account for other factors such as inflation or changes in technology. It serves as a starting point for estimating the cost of the new heat exchanger system based on the given information and assumptions.

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