20 POINTS!!!! Will give brainliest if right! What are the 3 rules of atoms?

1.


2.


3.

Answer:

Below

Step-by-step explanation:

It is an isosceles right triangle ( the two legs are equal length).

Use Pythagorean Theorem

(7 sqrt2)^2  = L^2 + L^2

98 = 2 L^2

49 = L^2

L = 7

Answer:

I guess the sister picked 20 apples

Step-by-step explanation:

I have no explaination

The decibel measurement for the quiet room is 54 dB.

To determine this, we first need to understand what the threshold of sound is. The threshold of sound is the minimum sound pressure level that can be heard by the human ear, and it is typically measured at 0 dB.

Next, we can use the formula for decibel measurement:

dB = 10 log (I/I0)

where I is the intensity of the sound in the quiet room, and I0 is the threshold of sound.

Since the noise in the quiet room is 500 times as intense as the threshold of sound, we can plug in the values into the formula:

dB = 10 log (500/1)

dB = 10 log (500)

dB = 10 * 2.7

dB = 27

Therefore, the decibel measurement for the quiet room is 27 dB. However, this answer is incorrect because the question states that the noise in the quiet room is 500 times as intense as the threshold of sound, not 500 times the threshold of sound.

To correct this mistake, we need to use the formula for decibel measurement with the correct values:

dB = 10 log (500 * I0/I0)

dB = 10 log (500)

dB = 10 * 2.7

dB = 27

Therefore, the decibel measurement for the quiet room is 27 dB + 27 dB = 54 dB.

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The correct statement regarding the continuity of the function is given as follows:

All three conditions for continuity are true, so f(x) is continuous.

A function f(x) is continuous at x = a if it is defined at x = a, and the lateral limits are equal, that is:

\(\lim_{x \rightarrow a^-} f(x) = \lim_{x \rightarrow a^+} f(x) = f(a)\)

For this problem, we must look at the turning point at x = 3, hence:

Hence all conditions are satisfied and the correct option is given by the fourth option.

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The solutions to the indicated quantities are x = 25, MIK = 25 and KIE = 50 degrees

The value of x

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

Angle MIE = 75

Using the above as a guide, we have the following:

x + 2x = 75

Evaluate

3x = 75

So, we have

x = 25

The angle MIK

From the figure, we have

MIK = x

So, we have

MIK = 1 * 25

MIK = 25

The angle KIE

From the figure, we have

KIE = 2x

So, we have

KIE = 2 * 25

KIE = 50

Hence, the measure of angle KIE is 50 degrees

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Given:

The expression are

(i) \(5x-3\)

(ii) \(11-2y^2\)

(iii) \(2x-1\)

To find:

The terms which are not constants and their numerical coefficients.

Solution:

Constants: The terms which are free from variables.

Numerical coefficient: Number multiplied with a variable.

(i) \(5x-3\)

Constant = -3

Term which is not constant = 5x

Numerical coefficient = 5

(ii) \(11-2y^2\)

Constant = 11

Term which is not constant = \(-2y^2\)

Numerical coefficient = -2

(iii) \(2x-1\)

Constant = -1

Term which is not constant = 2x

Numerical coefficient = 2

Therefore, the terms which are not constants are  \(5x,-2y^2,2x\)  respectively and their numerical coefficients are 5, -2, 2 respectively.

Answer:

45+1/3 (all 1/3 is 1/3 of an hour, so do 60/3 to get 20) meaning that 45+20 is 65 minutes or an hour and 5 minutes

Step-by-step explanation:

Answer:

$25000 * 40% = 100.000

Step-by-step explanation:

Answer: To find area of a rectangle, multiply its base (length) by its height (width). Plug in the base, 7 meters, and the height, 8 meters. So the area of Rectangle DFBE is 56 square meters.

88m

HOPE THIS HELPS

Answer:

The answer is number 2

Answer:

y=1/4x+3/2

Step-by-step explanation:

A perpendicular line will be the reciprocal, or opposite, of itself. So if you have 4, which is actually 4/1, it becomes 1/4.

The requried error in the speed is approximately 5.45 mph, and the relative error is 1.81% when the skid-mark length is 200 feet with a measurement error of ±10 feet.

To find the error and relative error in the speed for the skid-mark length when the error in measuring the length is ±10 feet, we need to calculate the error in the speed and then express it as a percentage relative to the original speed.

Given the formula for speed in terms of skid-mark length:

\(S = 9.4L^{0.37\\\)

Where S is the speed in mph, and L is the length of skid marks in feet.

Let's first find the speed (S) for the original skid-mark length (L = 200 feet):

\(S_{original} = 9.4 * 200^{0.37}\)

Now, we'll calculate the speed for the increased skid-mark length (L = 200 + 10 = 210 feet):

\(S_{increased} = 9.4 * 210^{0.37}\)

Next, calculate the speed for the decreased skid-mark length (L = 200 - 10 = 190 feet):

\(S_{decreased} = 9.4 * 190^{0.37}\)

Now, find the error in the speed:

\(Error = |S_{original} - S_{increased|}\)

\(Error = |(9.4 * 200^{0.37}) - (9.4 * 210^{0.37})|\)

Calculate the value:

Error ≈ |(9.4 * 21.522) - (9.4 * 22.223)|

Error ≈ |202.9008 - 208.3512|

Error ≈ 1.21

Now, find the relative error in the speed as a percentage:

Relative Error (%) = (Error / S{original} * 100

                            \(= (1.21 / (9.4 * 200^{0.37})) * 100\)

Relative Error (%) ≈ 1.81%

So, the error in the speed is approximately 5.45 mph, and the relative error is approximately 1.81% when the skid-mark length is 200 feet with a measurement error of ±10 feet.

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Step-by-step explanation:

a) is true

b) is true

c) is false

d) is false

e) is true

Answer:

.75

Step-by-step explanation:

$12 / 16 = $0.75

Answer:

c.

$14,000

Step-by-step explanation:

Let x be the value of the home

We can use a ratio to solve

.27         insurance

------ = -----------

100            x

.27         683.10

------ = -----------

100            x

Using cross products

.27x = 100 *683.10

.27x=68310

Divide by .27

x = 68310/.27

x = 253000

This is the original value of the home

Now using the new premium

.27         720.90

------ = -----------

100            x

.27x = 720.90*100

.27x = 72090

Dividing by .27

x = 72090/.27

x =267000

The increase is the new value minus the original value

267000-253000

14000

9514 1404 393

Answer:

  c.  $14,000

Step-by-step explanation:

The increase in Sam's premium was ...

  $720.90 -683.10 = $37.80

The home value increase this corresponds to can be found using the proportion ...

  (value increase)/(premium increase) = value/premium

  (value increase)/37.80 = 100/0.27 . . . . . . . . . . . . fill in known quantities

  value increase = 37.80×100/0.27 = 14,000 . . . . .multiply by 37.80

Sam's home increased in value by $14,000.

Speed is represented by the following expression:

She drove her car for 1.6 hours.

Answer:

3

Step-by-step explanation:

Syop doing homework and gdt a life

Answer:

your answer is √7/3

Step-by-step explanation:

your answer is √7/3

The expressions that are equivalent to the expression 8x + 32y are:

4(4 ⁢x + 8y) − 2⁢(4x)

8(x + 4y)

Equivalent expressions are expressions that work the same even though they look different.

If two algebraic expressions are equivalent, then the two expressions have the same value when we substitute the same value(s) for the variable(s).

Let's simply the options to see if they are equivalent to the expression 8x + 32y:

4(4 ⁢x + 8y) − 2⁢(4x)   = 16x + 32y - 8x

                               = 8x + 32y

8(x + 4y)  = 8x  + 32y

(2x + 12y) + (6x + 18y) = 2x + 6x + 12y + 18y

                                   = 8x + 30y

Therefore, only 4(4 ⁢x + 8y) − 2⁢(4x) and 8(x + 4y)  are equivalent to the expression below.

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Complete Question

Which of the following expressions are equivalent to the expression below?

8x + 32y

4(4 ⁢x + 8y) − 2⁢(4x)

8(x + 4y)

(2x + 12y) + (6x + 18y)

The perimeter of the square is 16√5 mm, and the area of the square is 80 mm².

To calculate the perimeter and area of the square, we can use the formulas:

Perimeter = 4 * side length

Area = side length * side length

Substituting the given side length of 4√5mm into the formulas, we have:

Perimeter = 4 * 4√5mm = 16√5mm

Area = (4√5mm) * (4√5mm) = 16 * 5mm = 80mm²

Therefore, the perimeter of the square is 16√5mm, and the area of the square is 80mm².

Please note that the values are based on the provided side length of 4√5mm. If there are any changes to the side length, the perimeter and area will differ accordingly.

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The perimeter of the square is 16√5 mm, and the area of the square is 80 mm².

I took the test on plato.

Answer and explanation:

Given that there is 45% off original price of outdoor furniture and price is represented by p

Discount on original price of outdoor furniture = 45% of p=0.45×p=0.45p

Therefore post sale price(after discount) of outdoor furniture can be represented by (1-0.45)p=0.55p

Answer:

f(x)=x^3-4x^2+5x-2

Step-by-step explanation:

This question is a "working backwards" question. They give you the solutions and then you work backwards to find the function that those are the solutions to. Zeros are solutions (also x-intercepts)

"a zero of multiplicity 2" means that that answer was the solution twice. So we put that factor in twice.

Multiply all the factors together to find the function.

see image.

The length of the real life plane is 8000 centimetres.

The scale model as a ratio is  1:2000.

A model of a plane has a length of  4 cm. The real life plane has a model of 80 m.

The length of the real life plane in centimetres is as follows:

1 metre = 100 centimetres

80 metres = ?

cross multiply

length of the real life plane in cm = 80 × 100

length of the real life plane in cm = 8000 centimetres

The scale model can be calculated as follows;

scale model = 4 / 8000

scale model = 1 / 2000 = 1:2000

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Answer:

20%

step-by-step way

The drawing of the 3 different ways (obtained by writing the equation related to the information in the question) to arrange the panels that gives the 3 playpens different dimensions created with MS Word is attached.

An equation is a mathematical (representation) of a statement that connects two expressions with an equals sign.

The number panels on the playpen = 12

Length of each panel = 2 feet long

The number of ways to arrange the panel = 3 ways

The number of panels on each side of the playpen can be found using the equation;

2·a + 2·b = 12

Where;

a and b are natural numbers (integers larger than zero)

a and b are the number of panels on a width and the adjacent length of the playpen

Therefore;

(2·a + 2·b)/2 = 12/2 = 6

2·(a + b)/2 = 6

a + b = 6

b = 6 - a

Fist configuration

When a = 1, b = 6 - 1 = 5

a = 1, b = 5

Second configuration

When a = 2, b = 6 - 2 = 4

a = 2, b = 4

Third configuration

When a = 3, b = 6 - 3 = 3

Please find attached the shape of the three playpens based on the three possible arrangements created with MS Word

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Answer:

.4 is in the 10th place in a number so .4 is one tenth of 1

The given decimal is equivalent to the one tenth of 4.

A decimal number is the representation of a number in whole and a part. The whole is represented by an integer while the part is equivalent to a number divided by the order of 10.

The given number in decimal form is 0.4.

In order to convert it in fraction, it can be written in the form of p/q as follows,

0.4 = 0.4/1

Multiply the numerator and denominator by 10 to obtain,

(0.4 × 10)/(1 × 10) = 4/10      

Hence, the given number is one tenth of 4.

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The sampling method used by the restaurant manager allows for efficient data collection and a representative sample, it may introduce bias and lacks randomization.

Based on the information provided, we can identify the following statements that are true about the sampling method used by the restaurant manager to evaluate customer satisfaction with the new smoothie:

1. The manager uses systematic sampling: The manager surveys every other customer who orders the new smoothie. This systematic approach involves selecting every second customer, providing a consistent and organized sampling method.

2. The sample is representative: By surveying every other customer who orders the new smoothie, the manager ensures that the sample includes a variety of customers, reflecting the customer population as a whole.

3. The sample size may be smaller than the total customer base: Since the manager surveys every other customer, the sample size may be smaller compared to surveying every customer. This allows for efficient data collection and analysis.

4.The sampling method may introduce bias: The manager may inadvertently introduce bias by only surveying every other customer. Customers who are skipped in the survey may have different preferences or opinions, leading to a potential bias in the results.

5. The sampling method lacks randomization: Randomization is not employed in this sampling method, as the manager systematically selects customers. This could potentially introduce bias or exclude certain types of customers from the sample.

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In a hypothetical situation, an incorrect dosage calculation due to an error in metric system to Imperial System conversion could lead to potential harm to the patient. To avoid such errors, it is crucial to ensure accurate and precise conversions between the metric and Imperial systems. As a nurse, I will double-check my calculations, use reliable conversion charts or tools, and consult with colleagues or supervisors when in doubt. Additionally, ongoing education and training on dosage calculations and metric system conversions will be important to maintain proficiency and prevent errors in the future.

~~~Harsha~~~