Find the volume of the solid enclosed by the paraboloids z=25(x2+y2) and z=8?25(x2+y2).

A measure that results in drastically different ratings over time lacks test-retest reliability.

Test-retest reliability refers to the consistency of measurements taken over time. If a measure results in drastically different ratings over time, it indicates a lack of consistency and therefore, a lack of test-retest reliability. This means that the measure is not dependable or accurate in measuring what it intends to measure. For example, if a survey measuring job satisfaction is administered to the same group of employees at two different time points, and the results show a significant difference, it may be due to a lack of test-retest reliability. In this case, the survey may need to be revised or replaced with a more reliable measure.

Test-retest reliability is crucial in ensuring the accuracy and dependability of a measure. A lack of test-retest reliability can lead to inaccurate results and can undermine the validity of the measure.

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Answer:

16/20

Step-by-step explanation:

4 is the common factor. 16 % 4 = 4, 20 % 4 = 5. therefore, 16/20 = 4/5

The answer is 16/20 I think.

Step-by-step explanation:

To find the area of a regular polygon, all you have to do is follow this simple formula: area = 1/2 x perimeter x apothem. Here is what it means: Perimeter = the sum of the lengths of all the sides.

...

Here is what it will look like:

area = 1/2 x 120 x 10√3.

area = 60 x 10√3.

area = 600√3.

hope this helps

To calculate the monthly principal + interest payments for a house with a down payment and a mortgage using an Excel formula, you can use the PMT function. Here's how:

Calculate the loan amount by subtracting the down payment from the house cost. In this case, the down payment is 25% of $300,000, so it would be $75,000.
  Loan Amount = $300,000 - $75,000 = $225,000    

Determine the monthly interest rate by dividing the annual interest rate by 12. In this case, the annual interest rate is 2.75%, so the monthly interest rate would be 2.75% / 12 = 0.00229.

Determine the loan term in months. Since it's a 30-year mortgage, the loan term would be 30 * 12 = 360 months.

Use the PMT function in Excel to calculate the monthly principal + interest payment.
  Monthly Payment = -PMT(0.00229, 360, 225000)

The negative sign is used because the payment is an outgoing cash flow.

By using this formula in Excel, you can find the monthly principal + interest payments for your mortgage. Remember to adjust the interest rate, loan amount, and loan term if they differ from the example provided.

To calculate the monthly principal + interest payments using an Excel formula, you can use the PMT function by inputting the appropriate parameters: the monthly interest rate, loan term in months, and loan amount.

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So on solving the provided question we can say that we know that all angles of  Quadrilateral is 90, 4x - 2 = 90; x = 22

A quadrilateral is a four-sided polygon in geometry that has four edges and four corners. The word is a derivative of the Latin words quadri and latus (meaning "side"). Having four sides, four vertices, and four corners, a rectangle is a two-dimensional form. Concave and convex come in primarily two varieties. Additionally, there are several subclasses of convex quadrilaterals, including trapezoids, parallelograms, rectangles, rhombuses, and squares. Four straight sides make up a rectangle, which is a two-dimensional form. There are several different types of quadrilaterals, including parallelograms, trapezoids, rectangles, kites, squares, and rhombuses.

we know that all angles of  Quadrilateral is 90

4x - 2 = 90

4x = 88

x = 22

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Answer:

231

Step-by-step explanation:

The pattern is add 6. But it is more easier to use the linear function: 6x+9. Since this starts with 0, we plug in 37 for x instead of 38.

Answer:

1 cookie costs $1.04

Step-by-step explanation:

7/7.28 = 1.04

The open intervals on which the graph of \(f(x) = x^4 - 3x^3\) is concave upward are (-∞, 0) and (3/2, ∞), and the open interval on which the graph of f(x) is concave downward is (0, 3/2).

A graph is a visual representation of data, information, or functions. In mathematics, a graph typically refers to a set of points and lines or curves connecting them, which can be used to represent mathematical relationships and functions.

To determine the intervals where the function \(f(x) = x^4 - 3x^3\) is concave upward or concave downward, we need to find the second derivative of the function, which gives us the concavity of the function.

\(f(x) = x^4 - 3x^3\\\\f'(x) = 4x^3 - 9x^2\\\\f''(x) = 12x^2 - 18x\)

For the function f(x) to be concave upward, f''(x) > 0, and for f(x) to be concave downward, f''(x) < 0.

So, we need to solve the inequality f''(x) > 0 and f''(x) < 0:

\(f''(x) > 0:\\\\12x^2 - 18x > 0\\\\6x(2x - 3) > 0\)

The critical points are x = 0 and x = 3/2. We can test each interval:

Interval (-∞, 0):

\(f''(-1) = 12(-1)^2 - 18(-1) = 30 > 0\), so f(x) is concave upward on this interval.

Interval (0, 3/2):

\(f''(1) = 12(1)^2 - 18(1) = -6 < 0,\) so f(x) is concave downward on this interval.

Interval (3/2, ∞):

\(f''(2) = 12(2)^2 - 18(2) = 12 > 0\), so f(x) is concave upward on this interval.

Therefore, the open intervals on which the graph of \(f(x) = x^4 - 3x^3\) is concave upward are (-∞, 0) and (3/2, ∞), and the open interval on which the graph of f(x) is concave downward is (0, 3/2).

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Answer:

So this is an inequality and can be easily solved if its opposite number is done with both the sides. There are some inequality rules which are:

1. when absolute values removed; the number in the oppostite side becomes negative and if negative then positive. And the signs are changed to its opposite sign. Like greater than to less than or vise versa.

2. When both the sides are divided or multiplied by a negative number the signs are changed.

I - 7b + 5 I ≤ 33

- 7b + 5 ≥ -33

- 7b + 5 - 5 ≥ - 33 - 5

- 7b ≥  - 38

-7b/-7 ≥ -38/-7

b ≤ 5.428

Brainliest pls if it was correct!

The line of the best fit would pass through (a) (1,9) and (9,5)

From the question, we have the following parameters that can be used in our computation:

The graph

A good line of best fit would have equal number of points on either sides

To plot the graph, we draw a line that divides the points on the graph evenly

This line when drawn on the scattered points divided the points approximately evenly

The line of the best fit when drawn using the above properties would pass through (a) (1,9) and (9,5)

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Answer:

hope you can understand

Answer:

B. The title, every chart first starts with the title, then data recording.

Step-by-step explanation:

The given equation has one solution which is x = 6 (which is a REAL number).

Linear Equation Solutions are the values of a variables in linear equations that give all possible solutions. Linear equations represent real-world problems by involving unknown quantities with in form with one or more variables.

Some key concepts regarding the solution of linear equation are-

Now, for the given question;

The linear equation is -

4x + 9 = 33

Solving this;

4x = 33 - 9

4x = 24

x = 24/4

x = 6

Therefore, the solution of the given linear equation is (x=6), where 6 is the real number.

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The complete question is-

The given equation is either linear or equivalent to a linear equation. Solve the equation. (If there is no solution, enter NO SOLUTION. If all real numbers are solutions, enter REALS.)

4x + 9 = 33

Answer:

3 34/45

Step-by-step explanation:

The common denominator of these is 45.

13/15 = 39/45

8/3 = 120/45

2/9 = 10/45

Add that up and that is 169/45

Simplify as a mixed number, and it would be 3 34/45

Answer:

169/45

Step-by-step explanation:

First lets do 13/15 + 8/3.

We can multiply 8/3 by 5 to both num and denom for a ration, with the denominator being 15: 40/15.

Then add 13/15 to 40/15 to get 53/15

Now multiply that by 3 to both num and denom to get 159/45. This is to get the least common factor with 9.

2/9 can be multiplied by 5 to both num and denom to get the least common factor with 15: 10/45

Now add 159/45 with 10/45 = 169/45

169/45 is the least it can be simplified so that is the answer.

%, a relative figure signifying hundredths of any amount. Before the raise, I was making $45,000.

A percentage that represents a tenth of a quantity. In essence, percentages are fractions with a denominator of 100. The percent symbol (%) is placed next to a number to indicate that it is a percentage. For instance, you would have received a 75% on the examination if you correctly answered 75 out of 100 questions (75/100).

Calculating a percentage involves dividing an item by its sum and multiplying the result by 100.

Considering the query

It was $52,200 after a 16% raise in my pay.

In light of the conditions stated, come up with

\($=\frac{52200}{1+16 \%}$$=\frac{52200}{1+0.16}$$=\frac{52200}{1.16}$$=\frac{5220000}{116}$\)

= $45000

Before the raise, I was making $45,000.

Therefore, the answer is $45,000.

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S = 25x + 250 is the equation models the food truck's average sales in dollars, S, in terms of the price for taco, x.

Equation is a declaration that two expressions with variables or integers are equal. In essence, equations are questions, and attempts to systematically identify the solutions to these questions have been the driving forces behind the creation of mathematics. Simple algebraic equations with merely addition or multiplication to differential equations, exponential equations with exponential expressions, and integral equations are examples of different types of equations. They are employed to represent a number of physics laws. also see equation system.

Given

A food truck vendor averages 150 tacos sold when the price per taco is $1.

A study shows that the average number of tacos sold will increase by 25

tacos for every $1 that the price per taco is lowered.

The calculation needed to determine which equation best represents the food truck's average sales in dollars, s, in terms of the price per taco, x, is as follows:

S = 25x + 250

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Answer:

44 cubic meters

Step-by-step explanation

9 + 4 + 6 = 19

9/19 of the patio will be cement

4/19 of the patio will be gravel

6/19 of the patio will be stones

Work out the amount of gravel - 4/19 * 209 = 44 cubic meters

:)

Answer:

16m + 12m - 8a + 32

Step-by-step explanation:

16m + 4(3m) - 4(2a) + 32. distribute the number (4) among the numbers inside of the parenthesis

16m + 12m -8a + 32. multiply

The answer is (b) getting 50 twos after 600 separate rolls of a single die. The law of large numbers states that as the sample size increases, the sample mean approaches the population mean.

In other words, the more times you roll the die, the closer you should get to the expected value of each number on the die (which is 1/6 for a fair die). Option (a) of getting 200 threes and option (c) of getting 100 sixes are both too far away from the expected value to be consistent with the law of large numbers. Option (b) of getting 50 twos is closer to the expected value and thus consistent with the law of large numbers.

Therefore, the  law of large numbers predicts that over a large number of trials, the frequency of an event should approach its probability of occurrence. In this case, the probability of rolling a two on a fair die is 1/6, so getting 50 twos after 600 rolls is consistent with the law of large numbers.

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Answer:

b) y= 3x - 5

Step-by-step explanation:

9x-15 ÷3 = 3x - 5

3y ÷ 3 = y

Answer:29% or 30% rounded up

Step-by-step explanation:

Answer:

4.0 x 10^-5

Step-by-step explanation:

Answer:

4*10^-5

Step-by-step explanation:

0.00004 has 4 zeros. Add 1 = 5

The power on 10 becomes negative (-5)

4 is a number between 1 and 9 inclusive.

4 * 10^-5

The value of X is 13 .

the measure of RSM is 99°.

the measure of PTU is 99 °.

The angles congruent to∠ RSM are ∠STP , ∠OTU and ∠NST.

The angles congruent to ∠PTU are ∠STQ , ∠RSN and ∠MST.

When two lines do not cross at any point in a plane, they are said to be parallel. A pair of lines that never cross paths and do not have a common junction point are said to be parallel. Parallel lines are represented by the symbol "||".

Any two parallel lines can be separated by a consistent amount of perpendicular space.

Lines that run parallel to one another do not intersect. Parallel lines intersect at infinity is another way of putting it.

Pairs of angles are created when a transversal connects two parallel lines, for example:

Two lines are said to cross at a point in a plane when they do so, which is referred to as an intersection of lines.

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Answer:

- 8

Step-by-step explanation:

Step 1:

- 50 - c = 5c - 2     Equation

Step 2:

- 50 = 6c - 2    Add c on both sides

Step 3:

- 48 = 6c   Add 2 on both sides

Step 4:

- 48 ÷ 6     Divide

Answer:

c = - 8

Hope This Helps :)

Answer:

c=-8

Step-by-step explanation:

-50-c=5c-2

-c-5c=-2+50

-6c=48

c=48/-6

c=-8

hope it helps you

6×+8=14 5×+2=7 14×7=98 ∆m=4.66

Answer:

Step-by-step explanation:

in place of x function place value and wallah answer

Making the equations equal shows that both companies have the same cost for 6 mousepads.

Equations are mathematical statements claiming the equality of two or more mathematical expressions.

Equations are depicted by the equation symbol (=).  On the other hand, algebraic or mathematical expressions do not go with the equation symbol.

                      T-Shirts Shop   Mousepads Plus

Fixed charge         $12                   $6

Variable charge     $2                   $3

Let the number of mousepads = x

Let the total cost = y

T-Shirts Shop (Equation 1): y = 12 + 2x

Mousepads Plus (Equation 2): y = 6 + 3x

For the two companies' costs to be the same, both equations will be equal:

12 + 2x = 6 + 3x

2x - 3x = 6 - 12

-x = -6

x = 6

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Answer:

10,000,000

Step-by-step explanation:

log10 x = 7

10^7 = 10,000,000

The volume of a stack of 9 books is 1368.75 cubic inches.

To find the volume of a stack of 9 books, we first need to find the height of the stack. Since each book is 3/4 inch thick, the height of the stack is 9 times 3/4 inch, which is 6 3/4 inches.

Now we need to find the area of the base of the rectangular prism formed by the stack of books. Since each book has an area of 22 1/2 square inches, the total area of the base of the stack is 9 times 22 1/2 square inches, which is 202 1/2 square inches.

Therefore, the volume of the stack of 9 books is:

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When we make inferences about the difference of two independent population proportions, we assume that it is a random sample, and the number of successes and failures are at least 15 in each group.

Two independent proportions tests involve comparing the proportions of two unrelated datasets.

For these two datasets to be regarded as an independent population, the following must be true or assumed to be true

Hence, the above highlights are the assumptions of two independent population proportions.

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