help me please I have no clue how to do these

Answer:

not equivalent to meteorologists ratio

Step-by-step explanation:

meteorologists ratio is

rainy days : sunny days = 2 : 5

last months weather is

rainy days : sunny days

= 10 : 20 ( divide both parts by LCM of 10 )

= 1 : 2 ← not equivalent to 2 : 5

Answer:

7.50+14p<60

24 slices

Step-by-step explanation:

Step one: 60-7.50=52.50

Step two: 52.5/14= 3.75 which is 3

Step three: 3 * 8=24

There are 3 cases to consider when determining horizontal asymptotes:

1) Case 1: if: degree of numerator < degree of denominator. then: horizontal asymptote: y = 0 (x-axis)

2) Case 2: if: degree of numerator = degree of denominator.

3) Case 3: if: degree of numerator > degree of denominator.

893.2638

is this what you mean?

a) The range is 14.

b) The sample variance is 20.78.

c) The sample standard deviation is 4.56.

a) Range

The range of a given set of data values is the difference between the maximum and minimum values in the set. In this case, the maximum value is 15 and the minimum value is 1. So, the range is:

Range = maximum value - minimum value

Range = 15 - 1

Range = 14

b) Sample variance

To calculate the sample variance, follow these steps:

1. Calculate the sample mean (X). To do this, add up all of the data values and divide by the total number of values:

n = 9

∑x = 7 + 4 + 6 + 12 + 8 + 15 + 1 + 9 + 13 = 75

X = ∑x/n = 75/9 = 8.33

2. Subtract the sample mean from each data value, square the result, and add up all of the squares:

(7 - 8.33)² + (4 - 8.33)² + (6 - 8.33)² + (12 - 8.33)² + (8 - 8.33)² + (15 - 8.33)² + (1 - 8.33)² + (9 - 8.33)² + (13 - 8.33)² = 166.23

3. Divide the sum of squares by one less than the total number of values to get the sample variance:

s² = ∑(x - X)²/(n - 1) = 166.23/8 = 20.78

Therefore, the sample variance is 20.78 (rounded to two decimal places).

c) Sample standard deviation

To calculate the sample standard deviation, take the square root of the sample variance:

s = √s² = √20.78 = 4.56

Therefore, the sample standard deviation is 4.56 (rounded to two decimal places).

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Answer:

4 people can go

Step-by-step explanation:

Answer:

Equation:  18.75x+5=80

Answer : x= 4

Answer:

10.4

Step-by-step explanation:

with reference angle 60

perpendicular (p)= 18

base(b)= x

tan 60 = p/b

\(\sqrt{3}\)  = 18/b

b = 10.4

Answer:

B. The y-intercept will shift down

Step-by-step explanation:

Answer:

the volume of the prism is VOLUME=BASE*HEIGHT

Step-by-step explanation:

SO it's ,

13*7=91ft

Answer:

591.5 ft^3

Step-by-step explanation:

The proof of "if a | b and b | a, where a and b are integers, then either a = b or a = -b" is shown below .

The representation "a|b and b|a ", means that "a" is a divisor of "b" and "b" is a divisor of "a".

which means , there exists an integer "c" ; such that b=ac    ...equation(1) and an integer "d" such that a = bd    .....equation(2)

Substituting the first equation into the equation(2) , we get:

⇒ a = bd = (ac)d = adc ;

Since a|a, it must be that either a = adc or adc = -a.

But  "c" and "d" are integers, So , "adc" must also be an integer.

Hence, it must be that adc = a.

Thus , a = adc = a. This implies that d = c = 1, and

So ⇒ a = b .....Equation(3) .

Similarly , if adc = -a, then we have: a = -a

Which implies that a = 0, but since "a" and "b" are integers, they cannot both be 0. So , it must be that a = b   ...equation(4) .

Therefore , On combining equation(3) and equation(4)  , we proved that "if a|b and b|a, where a and b are integers, then either a = b or a = -b" .

The given question is incomplete , the complete question is

Prove/show that if a|b and b|a, where a and b are integers, then either a = b or a = -b.

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The minimum number of drivers is 385.

For 95% confidence, z = 1.96

p = q = 0.5 [Since no estimated proportion is given]

E = 0.05

Hence,

Minimum number of drivers needed

n = (0.5) x (0.5) x ((1.96) / (0.05)) ^2

n = 384.16

Hence,

Number of drivers needed = 385    

(Because we can't have number of drivers in decimal so rounded off to next integer)

In data, a population proportion, normally denoted with the aid of P or the Greek letter π, is a parameter that describes a percent value associated with a populace. as an example, the 2010 America Census confirmed that 83.7% of the American population changed into recognized as not being Hispanic or Latino; the price of .837 is a population proportion. In popular, the population percentage and other populace parameters are unknown. A census may be carried out a good way to determine the real cost of a population parameter, but often a census is not realistic because of its fees and time consumption.

A population proportion is usually anticipated via an independent sample statistic acquired from an observational observe or experiment. for instance, the countrywide Technological Literacy convention performed a country wide survey of 2,000 adults to determine the share of adults who're economically illiterate. The take a look at showed that 72% of the two,000 adults sampled did not recognize what a gross domestic product is. The value of 72% is a pattern percentage. The sample proportion is commonly denoted by and in some textbooks with the aid of p.

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Answer:

Step-by-step explanation:

Lateral Surface Area of the Cylindrical Part

Slant height of cone

Surface Area of Conical Portion

Total Surface Area :

Volume

Hope it helps.

If you have any query, feel free to ask.

Answer:

y = 2x + 2

Explanation:

We can use the following equation to write an equation in slope-intercept form.

Where (x1, y1) is a point in the line and m is the slope. Additionally, the slope can be calculated as:

Where (x2, y2) is another point in the line.

So, replacing (x1, y1) by (0, 2) and (x2, y2) by (3, 8), we get that the slope is equal to:

Finally, replacing m by 2 and (x1, y1) by (0, 2), we get:

Therefore, the equation in slope-intercept form is:

y = 2x + 2

Time taken by Matilda on each project is \(5\frac{7}{12}\) hours.

According to the question we have been given that,

Total time taken by Matilda to complete the consulting projects = \(16\frac{3}{4}\) hours

First we will convert it into simple fraction which is

         \(16\frac{3}{4} = \frac{67}{4} \\\) hours

Number of consulting projects = 3

And Matilda spends same amount of time to each of the project.

To find the time she spend on each project is by using unitary method

that is,            3 projects = \(\frac{67}{4}\) hours

                      1 project = \(\frac{67}{4} / 3\)

                                     = 67/12

                                     = \(5\frac{7}{12}\) hours

Hence time taken by Matilda on each project is \(5\frac{7}{12}\) hours.

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The area οf the shaded regiοn is  24 square units

The amοunt οf space οccupied by a twο-dimensiοnaI figure is referred tο as its area. In οther wοrds, it is the quantity that cοunts hοw many unit squares cοver the surface οf a cIοsed figure.

The area οf the shaded regiοn is equaI tο the subtractiοn οf the tοtaI area tο the area οf the twο smaII squares and οne big square.

AII οf the quadriIateraIs in the shape beIοw are squares.

Then the area οf the shaded regiοn wiII be

The area οf the shaded regiοn is equaI tο the subtractiοn οf the tοtaI area tο the area οf the twο smaII squares and οne big square.

Area = 9 ×9  - 7 × 7 - 2 × 2 - 2× 2

= 81-49-4-4

= 24

The area οf the shaded regiοn is  24 square units

Tο Iearn mοre abοut the area frοm the given Iink

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Answer:

Z = 20

Step-by-step explanation:

3 x 20 = 60

60 - 12 = 48

The predicted acceleration would be approximately 0.333 m/s² / 2 = 0.1665 m/s².

Based on the provided table, we can calculate the acceleration of the car using the formula:

acceleration = (v₂ - v₁) / (t₂ - t₁)

Given the values in the table:

v₁ = 0.13 m/s

v₂ = 0.36 m/s

t₁ = 1.92 s

t₂ = 2.61 s

Substituting these values into the formula, we can find the acceleration:

acceleration = (0.36 - 0.13) / (2.61 - 1.92)

acceleration = 0.23 / 0.69

acceleration ≈ 0.333 m/s²

Therefore, the acceleration of the car, based on the given data, is approximately 0.333 m/s².

Now, let's consider what would happen if the applied force were cut in half. In this scenario, if we assume the force and mass of the car remain constant, Newton's second law of motion states that the acceleration of the car would also be halved. This is because the force and acceleration are directly proportional when mass is constant.

Therefore, if the applied force were cut in half, we would predict that the acceleration of the car would be halved as well. So, the predicted acceleration would be approximately 0.333 m/s² / 2 = 0.1665 m/s².

In conclusion, if the applied force were cut in half, we predict that the acceleration of the car, based on the given data, would be approximately 0.1665 m/s².

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The situation that would NOT have a solution if you wanted to know how many pieces of candy each person would receive is b) Four pieces of candy split among zero people.

When you divide a quantity (in this case, the four pieces of candy) among a group of people, you need to have a non-zero number of people. Dividing by zero is undefined in mathematics, so if there are zero people, there is no way to distribute the candy equally among them.

what is numbers?

In mathematics, a number is a mathematical object used to represent quantity, value, or measurement. Numbers can be classified into different types, such as natural numbers (1, 2, 3, ...), integers (..., -2, -1, 0, 1, 2, ...), rational numbers (fractions), real numbers (including irrational numbers), and complex numbers (numbers of the form a + bi, where a and b are real numbers and i is the imaginary unit). Numbers are fundamental in mathematical operations such as addition, subtraction, multiplication, and division, and they play a central role in various branches of mathematics.

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Answer:

Zero Slope

Step-by-step explanation:

Hope this helps!

f(x) = 4. 8x² function can be used to compute the approximate area, in square inches, of a stop sign if it has a side length of x inches.

A function, which produces single output from either a single input, is an illustration of a rule. Alex Federspiel was contacted to collect the image. An illustration of this is the equation y=x2. For each input of x, there is simply one output of y. Considering that x is actually the input value, we would claim that y is just a rational number.

area = (# of sides * side length^2) / [4 * tan (180/n)]

area = (8 * x^2) / 4 * tan (22.5)

area = 8 x^2 / (4 * 0.41421)

area = 8 x^2 / 1.65684

area = 4.8 x^2

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Bailey and Elena's race times are given below;

Bailey's time = 1 minute, 34.87 seconds

Elena's time = 1 minute, 38.22 seconds

To round each time to the nearest whole second, we consider only the digits in the ones place. The digit in the tens place will increase by one if the digit in the ones place is five or greater.

Therefore, we can round Bailey's time as follows;

Bailey's time = 1 minute, 34.87 seconds

                     ≈1 minute, 35 seconds

                     = 60 seconds + 35 seconds  

                     = 95 seconds

Similarly, we can round Elena's time as follows;

Elena's time = 1 minute, 38.22 seconds

                     ≈1 minute, 38 seconds

                     = 60 seconds + 38 seconds

                     = 98 seconds

Therefore, Bailey's time was 95 seconds, and Elena's time was 98 seconds. Bailey won the race by 3 seconds (98 - 95).

Bailey won the race by 3 seconds.

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Answer:

Answer:

D. y= 0.3x2

Step-by-step explanation:

In quadratic functions, the value of a affects the wideness of the graph. The smaller the absolute value of a, the wider the graph. In these choices, 1/3 and 0.3 are the smallest. To understand which is smaller convert both to decimals; 1/3 is 0.3333 repeating. Therefore, 0.3 is slightly smaller and wider.

Answer:

127.5

Step-by-step explanation:

(153/6) x 5 = 127.5

The solutions to the quadratic equation 22p² + 16p - 5 = 6p² are give as follows:

p = -5/4 and p = 1/4.

A quadratic equation is defined according to the rule presented as follows:

y = ax² + bx + c.

The solutions are given by the equation presented as follows:

They depend on the discriminant given by:

\(\Delta = b^{2} - 4ac\)

In this problem, the equation is given as follows:

22p² + 16p - 5 = 6p².

In standard format, it is given by:

16p² + 16p - 5 = 0.

Hence the coefficients are given as follows:

a = 16, b = 16, c = -5.

Then the discriminant is:

\(\Delta = 16^{2} - 4(16)(-5) = 576\)

The solutions are given as follows:

As fractions in simplest form, they are given as follows:

p = -5/4 and p = 1/4.

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Answer:

there are 45.3592 kilograms in 100 pounds

Step-by-step explanation:

for approximate result divide the mass value by 2.205

45.3592  is 100 pounds in kg  by unit conversion.

What is  unit conversion ?

The same feature is expressed in a different unit of measurement through a unit conversion. For instance, time can be expressed in minutes rather than hours, and distance can be expressed in kilometers, feet, or any other measurement unit instead of miles. The units of a measured quantity can be changed without changing the value using a conversion factor, which is an expression representing the connection between units.

                              The numerator and denominator of a conversion ratio (also known as a unit factor) have the same value whether represented in various units, and the ratio itself always equals one (1).

1 pounds  =  0.453592 kg

100 pounds  = 45.3592 kg

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According to the information, the 95% confidence interval for the proportion of Americans who drink tea daily is approximately (0.2485, 0.2766). The margin of error is approximately 0.0140.

To construct a confidence interval for the proportion of Americans who drink tea daily, we can use the formula:

Where,

p = the sample proportion

Z = the critical value corresponding to the desired confidence level

n = the sample size

Given:

Now, let's calculate the confidence interval and margin of error:

According to the information, the 95% confidence interval for the proportion of Americans who drink tea daily is approximately (0.2485, 0.2766), with a margin of error of approximately 0.0140.

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