help me pleaseeeeeeeeee.

Answer:

final answer is 21

Step-by-step explanation:

since x+y=7 and xy=10

2+5=7 and 2(5)=10

so,

(5)3=15  

(2)3=6

15+6= 21

Answer:

39$

Step-by-step explanation:

if the tax is 6 dollars 6 goes into 21 3 times making 18 add 18 to 21 and that is your answer.

Answer:

Step-by-step explanation:

the product will be positive,

remeber, (-)*(-)=+

product =20

Part A: An open circle on a number line represents an excluded value, indicating that the endpoint is not included in the solution set of the inequality. It is used when the inequality includes the symbols < (less than) or > (greater than), which denote strict inequality.

Part B: A closed circle on a number line represents an included value, indicating that the endpoint is part of the solution set of the inequality. It is used when the inequality includes the symbols ≤ (less than or equal to) or ≥ (greater than or equal to), which denote inclusive inequality.

Part C: The shading on the number line represents the range of values that satisfy the given inequality. It indicates which values make the inequality true. Typically, the shading is done to the right or left of the circle(s) depending on whether the inequality is greater than or less than.

Part A:

For example, if we have the inequality x > 2, we would represent it with an open circle at 2 on the number line. This means that 2 itself is not a valid solution, but any value greater than 2 is included.

Part B:

For example, if we have the inequality x ≥ -3, we would represent it with a closed circle at -3 on the number line. This means that -3 itself is a valid solution, as well as any value greater than or equal to -3.

Part C:

For example, if we have the inequality x > 2, we would shade the portion of the number line to the right of the open circle at 2. The shaded region represents all the values greater than 2 that satisfy the inequality. The shading visually illustrates the solution set and helps identify the range of valid values for the variable in the given inequality.

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We introduced three conditions that should be met before we construct a confidence interval for an unknown population proportion: Random, Normal, and Independent.

There are three crucial requirements that must be met in order to establish a confidence interval. These are Independent, Random, and Normal.

Any survey is carried out objectively.

It is required to assure randomness. An independent choice is equally likely to be made in a random sample. Similar to how the confidence interval is built, normal is used to confirm which phenomena are being employed or to correct the approach if necessary. In a similar vein, independent is crucial because it contains the facts to be analyzed. For the purpose of calculating the standard deviation, independent is used.

Therefore, it's crucial to consider the Random, Normal, and Independent criteria while building a confidence interval.

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Answer:

1 and ⅛

Step-by-step explanation:

have a good day :)

The amount of floor required to make the recipe is 2 1/4 then if she wants to make 7/2 times of recipe then the amount of floor required will be 7.87 cups.

The four fundamental operations of arithmetic are addition, subtraction, multiplication, and division of two or even more items.

Included in them is the study of integers, especially the order of operations, which is important for all other areas of mathematics, notably algebra, data management, and geometry.

As per the data provided in the question,

The amount of floor required to make the recipe = 9/4 = 2.25 cups

But, Saron wants to make 3 1/2 times of recipe.

= 7/2 times or 3.5 times.

So, the amount of floor requried for this will be equal to,

3.5 × 2.25 = 7.87 cups of the floor.

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Answer:

5w^3+8w^2-14w-5

Step-by-step explanation:

Hypothesis testing is an important statistical tool that helps us make informed decisions based on data and evidence.

The hypothesis statement h: µ = 25 is an example of a null hypothesis. A null hypothesis is a statement that suggests there is no significant difference between two variables or that any difference is due to chance. It is often denoted as H0 and is used to compare against an alternative hypothesis, which suggests that there is a significant difference between two variables. In this case, the null hypothesis is that the population mean µ is equal to 25, and there is no significant difference between the sample mean and the population mean. If the null hypothesis is rejected, it means that there is enough evidence to suggest that the alternative hypothesis is true. However, if the null hypothesis cannot be rejected, it does not necessarily mean that it is true. It only suggests that there is not enough evidence to support the alternative hypothesis.

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Answer:

B (It isn't in the shaded region)

The greatest possible straight-line distance between any two points on the rectangular  box is approximately 15 inches.

To find the greatest possible straight-line distance between any two points on the rectangular box, we need to use the Pythagorean theorem.
First, we can find the diagonal of the base of the box by using the Pythagorean theorem:
a² + b² = c²
Where a and b are the length and width of the base of the box, and c is the diagonal.
Substituting the given measurements, we get:
10² + 10² = c²
100 + 100 = c²
200 = c²
c ≈ 14.14
Now, we can find the diagonal of the box itself by using the Pythagorean theorem again:
a² + b² + c² = d²
Where a, b, and c are the length, width, and height of the box, and d is the diagonal.
Substituting the given measurements, we get:
10² + 10² + 5² = d²
100 + 100 + 25 = d²
225 = d²
d ≈ 15
Therefore, the greatest possible straight-line distance between any two points on the box is approximately 15 inches.

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The Additive Inverse of 924 is -924

⇒ The number that, when added to 924, will result in a sum of zero is the additive inverse of 924. The formula to solve the issue where x is the additive inverse of 924 is as follows:

924 + x = 0

⇒ When we solve the preceding equation for x, we obtain x = -924. As a result, the answer to the question "What is the additive inverse of 924?" is -924.

∴Therefore Additive Inverse of 924 = -924

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The radius of the circle having the area of the sector 50π, and the central angle of the radius as 100° is 6√5 units.

An area of a circle with two radii and an arc is referred to as a sector. The minor sector, which is the smaller section of the circle, and the major sector, which is the bigger component of the circle, are the two sectors that make up a circle.

Area of a Sector of a Circle = (θ/360°) πr², where r is the radius of the circle and θ is the sector angle, in degrees, that the arc at the center subtends.

In the question, we are asked to find the radius of the circle in which a sector has a central angle of 100° and the area of the sector is 50π.

From the given information, the area of the sector = 50π, the central angle, θ = 100°, and the radius r is unknown.

Substituting the known values in the formula Area of a Sector of a Circle = (θ/360°) πr², we get:

50π = (100°/360°) πr²,

or, r² = 50*360°/100° = 180,

or, r = √180 = 6√5.

Thus, the radius of the circle having the area of the sector 50π, and the central angle of the radius as 100° is 6√5 units.

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Answer:

C

Step-by-step explanation:

beccause it has four sides

(quad) ,

Answer:

125x125

125=5x5x5

125x125=5x5x5x5x5x5=5 to the power of 6

Answer:

Step-by-step explanation:

\(a = b \times h \\ \\ a = 9 \: \: {yd}^{2} \\ b = 6 \: \: yd \\ \\ 9 = 6 \times h \\ h = \frac{9}{6} \\ h = 1.5 \: \: yd\)

I hope that is useful for you :)

A significance level of 0.10, we have enough evidence to conclude that the new copy machines have a significantly faster mean repair time compared to the older model.

To test if the new copy machines are faster to repair, we can set up the following null and alternative hypotheses:

Null Hypothesis (H₀): The mean repair time for the new copy machines is the same as the mean repair time for the older model.

Alternative Hypothesis (H₁): The mean repair time for the new copy machines is less than the mean repair time for the older model.

Let's perform a one-sample t-test to test these hypotheses. The test statistic is calculated as:

t = (sample mean - population mean) / (sample standard deviation / √(sample size))

Given:

Population mean (μ) = 93 minutes

Sample mean (\(\bar x\)) = 86.8 minutes

Sample standard deviation (s) = 14.6 minutes

Sample size (n) = 18

Significance level (α) = 0.10

Calculating the test statistic:

t = (86.8 - 93) / (14.6 / sqrt(18))

t = -6.2 / (14.6 / 4.24264)

t ≈ -2.677

The degrees of freedom for this test is n - 1 = 18 - 1 = 17.

Now, we need to determine the critical value for the t-distribution with 17 degrees of freedom and a one-tailed test at a significance level of 0.10. Consulting a t-table or using statistical software, the critical value is approximately -1.333.

Since the test statistic (t = -2.677) is less than the critical value (-1.333), we reject the null hypothesis.

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Answer:

Khan Academy

Answer:

khan academy is a great place to go

Step-by-step explanation:

hope this helped!

p.s it would be cool if you gave me brainliest.

Patrick’s August finance charge will be $0.6717 more if it is calculated using the previous balance method.

Previous balance method: Interest charges are based on the amount owed at the beginning of the previous month's billing cycle.

Adjusted balance method: Based on finance charges on the amount(s) owed at the end of the current billing cycle after credits and payments have been posted.

The total amount on which interest will be applied using the previous balance method is;

\(= 1,466.22+28.48+40.00+31.76\\\\ = 1566.46\)

So, interest levied on this is;

\(= 1566.46 \times 15.40 \times \dfrac{30}{360} \times \dfrac{1}{100}\\\\=20.10\)

Now, the total amount on which interest will be applied using the adjusted balance method is;

\(= 1566.46-150.00-115.75\\\\=1300.71\)

So, interest levied on this is;

\(= 1300.71 \times 15.40 \times \dfrac{30}{360} \times \dfrac{1}{100}\\\\=16.69\)

The difference between charges by previous balance method and adjusted balance method is;

= 20.10 - 16.69 = 3.41

Hence, Patrick’s August finance charge will be $0.6717 more if it is calculated using the previous balance method.

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The volume of a prism is V = Bh = πr2h, therefore the volume of a cylinder is also V = Bh = πr2h. Where, B is the area of ​​the base, h is the height, and r is the radius of the base.

A prism is a polyhedron all of whose faces are flat and whose bases are parallel to each other. It is a solid object with flat surfaces, identical ends, identical diameter and length. The volume of a prism is defined as the total space occupied by a three-dimensional object. Mathematically, it is defined as the product of the area of ​​the base and the length.

Therefore, the volume of the prism = base area × length

Volume of Cylinder:

The volume of a cylinder is the number of unit cubes (cubes per unit length) that can fit in it. It is the space occupied by the cylinder, because the volume of any three-dimensional shape is the space it occupies. The volume of a cylinder is measured in cubic units, such as cm³, m³, in³, etc.

The volume of cylinder is :

V = πr2h

where

'r' is the radius of the cylinder

'h' is the height of the cylinder

And, π is a constant whose value

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\(m\angle E=\sin \dfrac{\sqrt{10}}{2\sqrt5}=\sin \dfrac{\sqrt2}{2}=45^{\circ}\)

The triangle DEF's section EF measures 24 units in length.

As per the data given in the above question are as bellow,

The provided details are as follow,

Procedure: Calculating the length that results from distorting a triangle by a scale factor

The triangle mentioned in the previous sentence is summarised in the diagram below. Using a trigonometric relationship, we discover that the following formula best describes the length of the section EF:

\($\sin a^{\circ}=\frac{E F}{D E}$\)

If we know that DE=30 and \($\sin a^{\circ}=\frac{4}{5}$\), then the length of the segment EF is:

\(E F=D E \cdot \sin a^{\circ} \\& E F=30 \cdot\left(\frac{4}{5}\right) \\\)

EF=24

Sine (sin), cosine (cos), and tangent (tan), which are defined in terms of the ratios of the sides of a right triangle, are the fundamental trigonometric functions.

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Note: The correct question would be as bellow,

A triangle was dilated by a scale factor of 6. If sin a° = four fifths and segment DE measures 30 units, how long is segment EF?triangle DEF in which angle F is a right angle, angle D measures a degrees, and angle E measures b degrees

15.5 units

24 units

30 units

37.5 units

The first partial derivative with respect to x is 4x^3 + 4y^9, and the first partial derivative with respect to y is 36xy^8.

To find the first partial derivatives of the function f(x, y) = x^4 + 4xy^9, we differentiate the function with respect to each variable separately.

Taking the partial derivative with respect to x (denoted as ∂f/∂x):

∂f/∂x = 4x^3 + 4y^9

Taking the partial derivative with respect to y (denoted as ∂f/∂y):

∂f/∂y = 36xy^8

Therefore, the first partial derivative with respect to x is 4x^3 + 4y^9, and the first partial derivative with respect to y is 36xy^8.

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Answer:

you have to calculate 30 by6

Step-by-step explanation:

30 x 6=57

The expression representing the difference between the areas of the two circles is π[(r₁)² - (r₂)²], where the subscripts (₁ and ₂) indicate the specific radii of the circles.

In the given question, we are asked to find the difference between the areas of two circles with radii denoted as r₁ and r₂.

To calculate the area of a circle, we use the formula A = πr², where A represents the area and r represents the radius of the circle.

In this case, we can calculate the area of the first circle as A₁ = π(r₁)² and the area of the second circle as A₂ = π(r₂)².

To find the difference between the areas, we subtract the area of the second circle from the area of the first circle:

Area difference = A₁ - A₂ = π(r₁)² - π(r₂)²

Factoring out π, we can rewrite it as:

Area difference = π[(r₁)² - (r₂)²]

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Step-by-step explanation:

that means we need to transform the equation, so that it is in the form of

b = ...

b - c + d/8 = a | add c to both sides

b + d/8 = a + c | subtract d/8 from both sides

b = a + c - d/8

that's it.

The total cost of repayment over 5 years is $23,300.

A loan repayment refers to the act of paying back money previously borrowed from a lender.

To get total cost of repayment, we must principal amount, the interest rate and the duration of the loan.

The formula to get total cost of repayment is given by \(Total Cost of Repayment = Principal + Interest\)

Interest = Principal * Interest Rate * Time

Given:

Principal amount is $20,000

Interest rate is 3.3%

Duration is 5 years.

Interest = $20,000 * 0.033 * 5

Interest = $3,300

Total Cost of Repayment = Principal + Interest

= $20,000 + $3,300

= $23,300.

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Answer:

x = 9

Step-by-step explanation:

23x + 24*8 + 25*1 + 26*6 = 580

23x + 192 + 25 + 156 = 580

23x + 373 = 580

23x = 580 - 373

23x = 207

x = 207/23

x = 9