Ok Ik yall might see me again, but I really need help on this question

Answer:

The independent variable is the number of weeks

The dependent variable is the number of website she makes

N = 3w

Step-by-step explanation:

Number of website per week = 3

The independent variable is the number of weeks

The dependent variable is the number of website she makes

Let number of websites she can design when given any number of weeks = N

N = 3 * w

N = 3w

Where,

w = number of weeks

The equation is N = 3w

Answer:

No

Step-by-step explanation:

image hopefully explains

Answer:

5:3

Step-by-step explanation:

20:12

10:6

5:3

diving speed:surface speer, so u put them side by side and simplest form it

Answer: x^2 + bx/a + c/a = 0

Step-by-step explanation:

the step simplifies the division of a:

0 divided by anything is still zero, so you can remove the a denominator

a/a = 1, and is therefore irrelevant, so ax^2 / a = x^2

the rest can stay

Answer:

-20x       87y

Step-by-step explanation:

Marissa's shape is classified as a scalene and obtuse triangle, considering it's concepts presented in this problem.

The triangle has three sides of unequal length, as the opposite angle measures are different, hence it is classified as an scalene triangle.

(it would be equilateral if all had the same length, and isosceles if two sides have the same length).

The triangle has one angle larger than 90º, hence it is classified as an obtuse triangle.

(acute with no angles of 90º or greater, right with one angle of exactly 90º).

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Answer:

positive 12/5

Step-by-step explanation:

First distribute: -12m - 20 = -2m + 4

Add like terms: 10m - 20 = 4

Isolate variable: 10m = 24

Divide: 2.4 or 12/5

Answer:

125% correct

3/5 correct

2/3 correct

Step-by-step explanation:

Here, we want to pick the appropriate conversion from percentage to fraction:

To convert from percentage to fraction, we simply divide by 100

125% = 125/100 = 1.25 correct

30% = 30/100 = 0.3 not 0.03 wrong

1% = 1/100 = 0.01 not 0.001 wrong

60% = 60/100 = 3/5 correct

50% = 50/100 = 1/2 not 1/4 wrong

2/3 = 2/3 * 100 = 200/3 = 66.66667% correct

Answer:

B.C,D

Step-by-step explanation:

The prime factorization of the number 21 is:

21 = 3*7

We want to write the prime factorization of 21.

To do so, we just need to divide the number by prime numbers.

The first prime number we can try is 2, if we divide by 2 we get:

21/2 = 10.5

This is not an integer, so 2 is not a factor.

The next one is 3:

21/3 = 7

Now we can rewrite:

21 = 3*7

Where 3 and 7 are prime numbers, so that is the prime factorization.

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Answer:

  a) 48 gigabytes

  b) 250 minutes, or 4 hours 10 minutes

Step-by-step explanation:

For D(t) = 75 -0.3t modeling the number of remaining gigabytes to download after t minutes, you want to find D(90) and t such that D(t) = 0.

  D(90) = 75 -0.3·90 = 48

After 90 minutes, 48 gigabytes are left to download.

The time required to complete the entire download is given by ...

  0 = 75 - 0.3t

  0 = 250 -t . . . . . divide by 0.3

  t = 250 . . . . . . add t

It will take 250 minutes, or 4 hours 10 minutes to download the entire game.

__

Additional comment

The attached calculator screen shows conversion to hours and minutes. Hours, minutes, seconds are computed "base-60" the same way that Degrees, minutes, seconds are computed "base-60". 250 minutes is converted to hours by dividing by 60 min/hour. We can use the →DMS function of the calculator to show decimal or fractional hours in hours : minutes : seconds. In this use of that function, degrees represents hours.

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The statistical measure of the strength of a linear relationship between two metric variables is called the correlation coefficient.

The correlation coefficient is a numerical value that ranges between -1 and +1, where -1 represents a perfect negative linear relationship, +1 represents a perfect positive linear relationship, and 0 represents no linear relationship between the variables.

The correlation coefficient is a useful tool in understanding the relationship between two metric variables because it provides a quantitative measure of how closely the variables are related. It is particularly useful in identifying whether there is a strong or weak relationship between the variables and can help to explain why certain patterns or trends are observed in the data. Overall, the correlation coefficient is an important statistical measure that helps to provide insight into the nature of the relationship between two metric variables.

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The important to consider the time frame when averaging data and examining the correlation between variables.

False, it does matter whether or not you average the data over every month versus every year; the correlation may not be the same. When you average the data over a longer period of time, such as a year, you are smoothing out any fluctuations that may occur within that time frame. This can result in a different correlation than if you were to average the data over a shorter period of time, such as a month.
For example, if you were looking at the correlation between temperature and ice cream sales, you may find a strong positive correlation when averaging the data over every month, as higher temperatures typically lead to higher ice cream sales. However, if you were to average the data over every year, you may find a weaker correlation, as there may be other variables, such as seasonal changes, that impact ice cream sales.
In conclusion, it is important to consider the time frame when averaging data and examining the correlation between variables.

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Answer:

the angle itself is 39

Step-by-step explanation:

first the angle 132 is apart of line segment jer so 180-132=48

48+93=141

180-141=39

Answer:

39º

Step-by-step explanation:

Once the angle 132º and angle ∠BER are supplementary angles (add up to 180 degrees), ∠BER = 48º.

Also, once the sum of a triangle's interior angles is 180º:

∠BER + 93º + (9x+3)º = 180º

48º + 93º + 9x + 3º = 180º

144º + 9x = 180º

9x = 36º

x = 4º

Therefore, the angle ∠EBR (green) is equal to 39º

At the end of 2018, the world population was approximately 7.53 billion people. This figure is calculated by taking the total population at the end of 2017, 7.4 billion people, and multiplying it by the population growth rate of 1.07%..

This means that the world population increased by approximately 130 million people in 2018. This population growth rate is consistent with the average growth rate of the world population over the last decade. While the population growth rate has been decreasing over the past few decades, it is still relatively high at 1.07%.

The high population growth rate is primarily due to high fertility rates in developing countries and a longer life expectancy in developed countries. This means that more people are born and fewer people die each year. As a result, the total population of the world increases each year.

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The question is incomplete, the complete question is;

A grocer has 18 kg of black tea worth $3.5 per kg. She wants to mix it with green tea worth $2.6 per kg to sell the mixture at $2.9 per kg. How much of green tea should she use?

Answer:

36

Step-by-step explanation:

Let the weight of the green tea used be x kg.

From the question:

We have:

18 kg of black tea at $ 3.5 per kg. Thus total cost of black tea is 18 x 3.5 = $ 63

Cost of green tea is $2.6 per kg. Total cost of green tea is 2.6 * x = $2.6x

Total weight of the mixture is 18 + x kg.

Total cost of the mixture is = $2.9 (18 + x)

Thus,

Total cost of black tea + total cost of green tea = Total cost of the mixture

$63 + $2.6 x = $2.9 (18 + x)

$63 + $2.6x = $52.2 + $2.9x

63 – 52.2 = 0.3 x

10.8 = 0.3 x

x = 10.8/0.3

x = 36

36 kg of green tea is needed

To prove the quotient rule using the product rule and chain rule, we can express the quotient as a product with the reciprocal of the denominator. By applying the product rule and chain rule to this expression, we can derive the quotient rule.

Let's consider the function f(x) = h(x)/g(x), where g(x) ≠ 0.

We can rewrite f(x) as f(x) = h(x)⋅[g(x)]^(-1).

Now, using the product rule, we differentiate f(x) with respect to x:

f'(x) = [h(x)⋅[g(x)]^(-1)]' = h(x)⋅[g(x)]^(-1)' + [h(x)]'⋅[g(x)]^(-1).

The derivative of [g(x)]^(-1) can be found using the chain rule:

[g(x)]^(-1)' = -[g(x)]^(-2)⋅[g(x)]'.

Substituting this into the previous expression, we have:

f'(x) = h(x)⋅(-[g(x)]^(-2)⋅[g(x)]') + [h(x)]'⋅[g(x)]^(-1).

Simplifying further, we obtain:

f'(x) = -h(x)⋅[g(x)]^(-2)⋅[g(x)]' + [h(x)]'⋅[g(x)]^(-1).

To express the derivative in terms of the original function, we multiply by g(x)/g(x):

f'(x) = -h(x)⋅[g(x)]^(-2)⋅[g(x)]'⋅g(x)/g(x) + [h(x)]'⋅[g(x)]^(-1)⋅g(x)/g(x).

Simplifying further, we have:

f'(x) = [-h(x)⋅[g(x)]'⋅g(x) + [h(x)]'⋅g(x)]/[g(x)]^2.

Finally, noticing that -h(x)⋅[g(x)]'⋅g(x) + [h(x)]'⋅g(x) can be expressed as [h(x)]'⋅g(x) - h(x)⋅[g(x)]' (by rearranging terms), we obtain the quotient rule:

f'(x) = [h(x)]'⋅g(x) - h(x)⋅[g(x)]'/[g(x)]^2.

Therefore, we have proven the quotient rule using the product rule and chain rule.

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Answer:

Below

Step-by-step explanation:

1:50000  means 1 cm on the map is 50 000 cm in the real world

 so   1 cm on the map = 500 m   in the real world   (100cm = 1m)

           500 m IS  .5 km      

                so 1 cm on the map =  .5  km  

Answer:   1 cm

Step-by-step explanation: convert 50000 cm into km. This will give you 0.5 km. This means that 1 cm represents 0.5km

Answer:

There are 3 of them

Step-by-step explanation:

Answer:

it's in the hundredths and tens and thousandths and it's a 9 aka an upsidedown 6

Step-by-step explanation:

Answer:

Their ages are 38,39 and 40.

Step by step explanation:

If they were all the same age, then their ages would be:

But, they are consecutive integers. So, you can make Elsa 40 and Edna 38.

If the inflation rate is 180%, the average prices will double in less than one year.

This is because inflation measures the increase in the prices of goods and services over a period of time. Therefore, the formula for calculating how many years it will take for average prices to double at a given inflation rate is:Years to double = 70/inflation rate

In this case, the inflation rate is 180%.

Therefore:Years to double = 70/180%

Years to double = 0.389 years

This means that average prices will double in approximately 4.67 months (0.389 years multiplied by 12 months per year).

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Answer:

90

Step-by-step explanation:

Answer:

9

Step-by-step explanation: 3x4= 12  -3=9

Answer:

what's nelly's age

Step-by-step explanation:

4x divided by 3?

Answer: 1550/3

Step-by-step explanation:  it is logically posiblie

Answer:

If you follow c²=a²+b² you can find your solution or you can do it with the cosinus rule/ sinus rule. But i don't see the side a remarked in your picture so i don't know which one you want to calculate.

Step-by-step explanation:

Answer:

-2.2

Step-by-step explanation:

Answer:

-19.04 + 38.08 = 19.04

The confidence interval about the given mean age is (40.7, 34.3). Since the given mean age of 38.8 years is in the obtained interval, there is no sufficient evidence to conclude that the mean age had changed.

The formula for the confidence interval is

C.I = \(\bar x\) ± z(σ/√n)

Where \(\bar x\) - sample mean; z or z(α/2) - test value; σ - standard deviation of the sample; n - sample size;

Consider the hypothesis,

null hypothesis H0: μ = 38.8

alternate hypothesis Ha: μ ≠ 38.8

It is given that,

sample size n = 32

sample mean \(\bar x\) = 37.5

standard deviation σ = 9.2

Constructing a 95% confidence interval about the mean age:

a) Finding the significance level:

= 1 - (95/100)

= 1 - 0.95

∴ α = 0.05

b) Finding the z-value for the obtained significance level:

z(α/2) = z(0.05/2)

∴ z = 1.96 (From the distribution table)

c) Calculating the lower and upper bounds:

C.I = \(\bar x\)  ± z(σ/√n)

On substituting,

C.I = 37.5 ± (1.96)(9.2/√32)

⇒ 37.5 ± (1.96)(1.626)

⇒ 37.5 ± 3.186(≅3.2)

Upper bound = 37.5 + 3.2 = 40.7

Lower bound = 37.5 - 3.2 = 34.3

Thus, the interval is from 34.3 years to 40.7 years.

Hence the given mean age of 38.8 is included in the interval, the evidence is insufficient to conclude that there is a change in the mean age.

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In the given regression equation, the slope of the line is - 1.23.

Regression equation:

in statistics, regression equation means the mathematical expression of the relationship between a dependent variable and one or more independent variables that results from conducting a regression analysis.

Given,

The average August temperatures (y) and geographic latitudes (x) of 12 cities in the United States were studied. The regression equation for these data is Temperature 90.4 -1.23*(latitude)

Here we need to the slope of the line.

While we looking into the given regression equation,

Temperature = 90.4 - 1.23x(latitude)

While we compare this one with the general slope of the line equation,

y = mx + c

where m refers the slope of the line.

Then we get the value of slope as -1.23.

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