I need help finding the decimal for these equations.

The given expression is

Replacing the given values, we have

Answer:

y = 4

Step-by-step explanation:

The maximum value occurs at the vertex

vertex = (2, 4 )

when x = 2 the maximum value is y = 4

Answer: $364

Step-by-step explanation:

\(\displaystyle\\ \$260+\frac{40\%(\$260)}{100\%} =\\\\ \$260+\frac{\$10400}{100}=\\\\ \$260+\$104=\\\\\$364\)

The sampling method used in this scenario is a) Random sampling. The teacher selects the new lunch line leader using a random number program on her computer, which implies that each kindergarten student has an equal chance of being chosen for the role.

In the given situation, each kindergarten student is assigned a number based on a seating chart. The teacher then uses a random number program on her computer to select the new lunch line leader. By using a random number program, the selection process is unbiased and ensures that each student has an equal opportunity to be chosen for the role. This randomness helps minimize potential biases and allows for a representative sample of the kindergarten students to be considered for the lunch line leader position.

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Answer:

c

Step-by-step explanation:

$376.35 / 4 does equal to $94.0875 but when it comes to money, it should be rounded to the nearest cent being $94 and .08 cents.

A higher R-squared value indicates a better fit of the regression model to the data.

R-squared is a statistical measure that is commonly used to evaluate the goodness of fit of a regression model.

To understand how R-squared works, let's first review the concept of regression. Regression analysis is a statistical technique used to explore the relationship between two or more variables.

In a simple linear regression, we have a dependent variable (Y) and an independent variable (X), and we are trying to find a line of best fit that can predict the value of Y based on X.

Now, let's assume that we have a set of data points for Y and X. We can use regression analysis to find the line of best fit that minimizes the distance between the predicted values and the actual values of Y. The sum of the squared errors between the predicted and actual values of Y is called the regression sum of squares (SSR).

SSR is an important component in calculating R-squared. To find R-squared, we divide SSR by the total sum of squares (SST), which is the sum of the squared differences between the actual values of Y and the mean of Y. The resulting value of R-squared ranges from 0 to 1, with higher values indicating a better fit of the regression model to the data.

In mathematical terms, R-squared can be expressed as:

R-squared = SSR / SST

Therefore, to find the value of R-squared, we first need to calculate SSR using the formula within it. Once we have SSR and SST, we can divide SSR by SST to obtain the value of R-squared.

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The value of cos(Z) is 12/13.

Since both triangles are similar, △ABC ~ △XYZ, the corresponding angles are congruent. It means:

m∠C = m∠Z, and

cos C = cos Z

The ratio for cosine is adjacent/hypotenuse. In a right triangle, the hypotenuse is the longest side, while an opposite side is the one across from a given angle, and an adjacent side is the one next to a given angle.

Since the side marked 12 is adjacent to angle C and 13 is the hypotenuse of this triangle; so, we know that:

cos C = 12/13

Thus, because of the angles and cosines for C and Z will be the same, it makes:

cos Z = cos C = 12/13

Hence, the value of cos(Z) is 12/13.

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Answer:

use microsoft maths solver

Answer:

D. +3.82

Step-by-step explanation:

The computation of the test static for this test is shown below:

Data provided in the question

\(\bar x\)= $8,745

\(\mu\) = $8,500

\(\sigma\) = $1,200 and n = 350

Now based on the above information, the test static for this test is

\(z = \frac{\bar x - \mu}{\frac{\sigma}{\sqrt{n} } }\)

\(z = \frac{\$8,745 - \$8,500}{\frac{\$1,200}{\sqrt{350} } } \\\)

= 3.82

= +3.82

Hence, the test static for this test is +3.82

We simply applied the above formula so that the correct value could come

And, the same is to be considered  

Answer:

12

Step-by-step explanation:

Ella has two 8 feet long boards, so in total, she has 16 feet of the boards.

Convert these 16 feet to inches. There are 12 inches in a foot, so multiply 16 by 12:

16(12)

= 192

So, there are 192 inches in the boards. Divide this by 15 to see how many 15 inch pieces she can cut:

192/15

= 12.8

We can only have a whole number answer, because the boards need to be a full 15 inches. So, round this down:

= 12

Ella can cut twelve 15 inch pieces.

Hey there!

\(\huge\boxed{(6 + 4)^3 - 1^8}\)

\(\huge\boxed{= 10^3 - 1^8}\)

\(\huge\boxed{10^3}\)

\(\huge\boxed{= 10\times10\times10}\)

\(\huge\boxed{= 100\times10 }\)

\(\huge\boxed{= 1,000}\)

\(\huge\boxed{1^{8}}\)

\(\huge\boxed{= 1\times1\times1 \times 1 \times 1 \times 1 \times 1 \times 1}\)

\(\huge\boxed{= 1 \times 1 \times 1 \times 1}\)

\(\huge\boxed{= 1\times1}\)

\(\huge\boxed{= 1}\)

\(\huge\boxed{1,000 - 1}\)

\(\huge\boxed{= 999}\)

\(\huge\text{Answer: \textsf{999}}\)

\(\huge\text{Good luck on your assignment \& enjoy your day!}\)

~\(\huge\boxed{\frak{Amphitrite1040:)}}\)

Answer:

16

Step-by-step explanation:

Answer:

b/w 19 & 55

Step-by-step explanation:

average of four equally weighted 100-point tests,

mark has scored 90, 86, and 85 on the first three.

C average = 70 and 79

90+86+85+x = 4*70 = 280, so x=19

90+86+85+x = 4*79 = 316, so x=55

The absolute minimum and maximum of the function f = x^2 / (4y^2 - x + y) on the elliptical region x^2 + 4y^2 ≤ 1 are found as follows: The absolute maximum of f within the region is 1, which occurs at the critical points (1, 0) and (-1, 0) on the boundary.

To find the absolute minimum and maximum of the function f within the given elliptical region, we need to consider the critical points and the boundary of the region. First, we find the critical points by taking the partial derivatives of f with respect to x and y and setting them equal to zero. Solving these equations, we obtain the critical point (x, y) = (0, 0). Next, we evaluate the function f at the critical point and calculate its value as f(0, 0) = 0.

To consider the boundary of the elliptical region, we use the method of Lagrange multipliers. We set up the equation ∇f = λ∇g, where g represents the constraint equation x^2 + 4y^2 = 1. Solving this equation along with the constraint equation, we find the additional critical points (x, y) = (±1, 0) and (x, y) = (0, ±1/2). We evaluate the function f at these points and find the corresponding values: f(1, 0) = 1, f(-1, 0) = 1, f(0, 1/2) = 0.25, and f(0, -1/2) = 0.25.

Finally, we compare the values of f at the critical points and the boundary points. The absolute minimum of f within the given region is 0, which occurs at the critical point (0, 0) and the points (0, 1/2) and (0, -1/2) on the boundary. The absolute maximum of f within the region is 1, which occurs at the critical points (1, 0) and (-1, 0) on the boundary.


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Answer:

Top left triangle has the greatest area

Step-by-step explanation:

Area of a triangle:

area = base × height / 2

a = bh/2

Top Left Triangle:

a = 6 × 5.2 / 2

a = 31.2 / 2

a = 15.6

Top Right Triangle:

a = 8 × 2.9 / 2

a = 23.2 / 2

a = 11.6

Bottom Left Triangle:

a = 2 × 7.9 / 2

a = 15.8 / 2

a = 7.9

Compare areas:

15.6 > 11.6 > 7.9

When we roll three fair coins, there are two possible outcomes for each coin - either it lands heads up or tails up. There are 8 elementary events in the sample space of the experiment of rolling three fair coins.

The sample space of this experiment consists of all possible combinations of three outcomes, which can be calculated by multiplying the number of outcomes for each coin: 2 x 2 x 2 = 8.
Each of these combinations is called an elementary event, which means that there are 8 elementary events in the sample space of the experiment of rolling three fair coins. We can list them as follows:
1. HHH (all three coins land heads up)
2. HHT (two coins land heads up, one lands tails up)
3. HTH (two coins land heads up, one lands tails up)
4. THH (two coins land heads up, one lands tails up)
5. HTT (one coin lands heads up, two land tails up)
6. THT (one coin lands heads up, two land tails up)
7. TTH (one coin lands heads up, two land tails up)
8. TTT (all three coins land tails up)

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The value of x that makes the equation true is x = 9.

To solve the equation 12/X = 8/6 we can cross-multiply to eliminate the fractions.

By multiplying both sides of the equation by x, we get: 12= 8/6 x

Simplifying the right side of the equation, we have: 12= 4/3 x

To isolate x, we can multiply both sides of the equation by 3/4

3/4 × 12 = 3/4 × 4/3 × x

The 4 and 3 cancel out on the right side, resulting in: 9=x.

Therefore, the value of x that makes the equation true is x=9.

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Answer:

7/20

Step-by-step explanation:

Answer:7/10

Step-by-step explanation:

Here is the way that I think is the simplest method of changing a percentage a fraction. This percentage has two digits in it, so put it over a 1 and two zeros and then simplify. 35/100 is simplified to 7/20.

Answer:The noun 'animal' is usually a common noun, not a proper noun. It is not the name of a specific animal.

Step-by-step explanation:

When an inequality is multiplied or divided by a negative number, the inequality sign will flip, meaning it will change its direction. For example, if you have a > b and you multiply or divide both sides by a negative number, the inequality will become a < b. This is because the relationship between the values reverses when multiplied or divided by a negative number.

Explanation:

When an inequality is multiplied or divided by a negative number, the direction of the inequality sign is flipped. This is because multiplication or division by a negative number, results in a reversal of the order of the numbers on the number line.

To see why this happens, consider the following example:

Suppose we have the inequality x < 5. If we multiply both sides of this inequality by -1, we get -x > -5. Notice that we have flipped the inequality sign from "<" to ">". This is because multiplying by -1 changes the sign of x to its opposite, and also changes the sign of 5 to its opposite, resulting in a reversal of the order of the numbers on the number line.

Similarly, if we divide both sides of the inequality x > 3 by -2, we get (-1/2)x < (-3/2). Here, we have again flipped the inequality sign from ">" to "<". This is because dividing by a negative number also changes the order of the numbers on the number line.

In general, if we have an inequality of the form a < b or a > b, where a and b are real numbers, and we multiply or divide both sides by a negative number, we obtain:

If we multiply by a negative number, the inequality sign is flipped. For example, if a < b and c < 0, then ac > bc.

If we divide by a negative number, the inequality sign is also flipped. For example, if a > b and c < 0, then a/c < b/c.

Therefore, it is important to be mindful of the signs of the numbers involved when performing operations on inequalities. If we multiply or divide by a negative number, we must flip the direction of the inequality sign accordingly.

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Answer:

1.55

Step-by-step explanation:

you just change the fractions to decimals

Answer:

The median is 33.5

Step-by-step explanation:

In order to solve for a median it would either be the middle or it would be the average of the middle if there are even amount of numbers. First you would put them in order. 12 17 28 31 36 54 55 and 71. This would mean the the middle number would be 31 and 36. Since you can't have two medians you would find the average of the two so add 31 and 36 which would be equal to 67 then divide by 2 which would equal to 33.5.

The median of numbers 17, 12, 54, 36, 71, 28, 31, 55 is 33.5.

The median of a set of numbers is the middle value when the numbers are arranged in ascending or descending order.

To find the median of the given numbers, we first need to arrange them in ascending order:

12 17 28 31 36 54 55 71

Since there are an even number of numbers (8), the median will be the average of the two middle values, which are 31 and 36.

To find the average, we add the two numbers and divide by 2:

(31 + 36) / 2 = 67 / 2 = 33.5

Therefore, the median of the given numbers is 33.5.

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Answer: (24)-2+8=6

Step-by-step explanation: good luck

Answer:

8.4 Gallons

Step-by-step explanation:

15.54 divided by 1.85 is 8.4

The probability that a basketball player makes all four of his free throws when the probability of making one is 80% is 0.4096.

This is calculated using the binomial probability formula, which states that the probability of k successes in n trials is given by the following:

P(k successes in n trials) = \((n!/(k!(n-k)!))\timespk(1-p)(n-k)\)

In this case, the probability of making a single free throw is 80% (0.8),

so we can plug this into the formula.

We know that the player is taking 4 free throws, so k is 4 and n is also 4.

Plugging these values into the formula, we get:

P(4 successes in 4 trials) = \((4!/(4!(4-4)!))\times 0.84(1-0.8)(4-4) = 0.4096\)

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Let's first write the vector equation of the two lines r1​ and r2​. r1​(t)=⟨3t+5,−3t−5,2t−2⟩r2​(t)=⟨11−6t,6t−11,2−4t⟩

​The direction vector for r1​ will be (3,-3,2) and the direction vector for r2​ will be (-6,6,-4).If the dot product of two direction vectors is zero, then the lines are orthogonal or perpendicular. But here, the dot product of the direction vectors is -18 which is not equal to 0.

Therefore, the lines are not perpendicular or orthogonal. If the lines are not perpendicular, then we can tell if the lines are distinct parallel lines or skew lines by comparing their direction vectors. Here, we see that the direction vectors are not multiples of each other.So, the lines are skew lines. Choice: The lines are skew.

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Answer:

-32

Step-by-step explanation:

Answer:

-32

Step-by-step explanation:

(7x(6))-(5x(-2))=-32

Answer:

what chart

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

The reason it is A is because it is a geometric sequence,and also in fraction after 2 the next fractional number is 4 then 6 and so on.