helppppppppppppppppppppppppppppppppppppppppppppppp

Answer:

1st Triangle

Step-by-step explanation:

Answer:

I think it's 12+2h

Step-by-step explanation:

In algebra, when you are solving a question where you are expressing a phrase into a mathematical expression. There needs to be few things in the mind of yours:-

-Whenever there is a use of “and” we must think of addition.

-Twice, thrice etc. means 2 times 3 times respectively. Or mathematically 2x or 3x.

Here, it is given that “the sum of 12” and “twice a number h”.This means that the addition of the number “12” and two times an unknown variable ‘h’.Which can be easily written in the algebraic form as:- 12+2h

Note: You need to remember one thing while solving these types of sums that, you must not in any case forget the chronology in which the processes are done. Suppose, if a number ‘w’ is divided with number ‘e’ then you must divide ‘w’ with ‘e’ only and not ‘e’ with ‘w’ as this would make your answer completely wrong. Therefore, always remember the order.

Hint:

Add first part to twice the unknown variable mentioned.Here, the question has given us the following statement, the sum of 12 and twice a number h. The first step we need to do is divide the phrase into 2 parts. 1st is the “sum of 12” and 2nd is the “twice a number h”. Solving the first part, we can say that it is asking us to sum or add 12 with some other number. Whereas, the second part is asking us to multiply an unknown variable 2 times. And these two separate lines are connected by the word “and” which when combined with both the two statements say to sum 12 and 2h. Therefore the answer to the above question is 12+2h.

585 miles per 9 hours

Step-by-step explanation:

715miles per 11 hours

/11 to determine miles per hour

65 miles per 1 hour

× 9 to determine miles per 9 hours

585 miles per 9 hours

Answer:

I really don't know i need the answer as well

Step-by-step explanation:

Mean (m): 2.978

Variance (s²): 2.389

Standard deviation (s): 1.544

Mean (m):

The mean can be calculated as follows:

Mean = Σ(x * p(x))

where Σ is the summation operator, x is the value of the random variable, and p(x) is the probability of x.

In this case, the mean is calculated as follows:

Mean = (0 * 0.022) + (1 * 0.113) + (2 * 0.144) + (3 * 0.273) + (4 * 0.201) + (5 * 0.193) + (6 * 0.054) = 2.978

Variance (s²):

The variance can be calculated as follows:

Variance = Σ(x² * p(x)) - m²

where Σ is the summation operator, x² is the square of the value of the random variable, p(x) is the probability of x, and m is the mean.

In this case, the variance is calculated as follows:

Variance = (0² * 0.022) + (1² * 0.113) + (2² * 0.144) + (3² * 0.273) + (4² * 0.201) + (5² * 0.193) + (6² * 0.054) - 2.978² = 2.389

Standard deviation (s):

The standard deviation can be calculated as follows:

Standard deviation = √Variance

In this case, the standard deviation is calculated as follows:

Standard deviation = √2.389 = 1.544

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Answer:

Step-by-step explanation:

3 x 2 = 6

Matt can make 6 different outfits with these clothes.

Combinations are the procedures used in mathematics to pick k things from n different items without replacement.

The following formula computes the combinations of k items from n:

(n, k) = n! / k!×(n-k)!

Given that Matt has 3 different colored T-shirts and 2 different colored shorts.

Matt can make 3 x 2 = 6 different outfits with these clothes.

This is because for each T-shirt color, he has 2 options for shorts, and he has 3 different T-shirt colors.

So for each T-shirt color, the number of outfit combinations is 2. And since he has 3 T-shirt colors, the total number of outfits is 3 x 2 = 6.

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Answer:

helllo friend

Step-by-step explanation:

i dont know how to do it

Answer:

1: x

A variable is a letter in an equation that represents an unknown value or a value that can change.

2: 2

A coefficient for a variable is the leading number in front of the variable. It tells you how many times the variable happens

3: 2x

A term is a multiplication or division statement separated by a +/- sign.

Hope that helps

Answer:

Proportional relationships are relationships between two variables where their ratios are equivalent. Another way to think about them is that, in a proportional relationship, one variable is always a constant value times the other. That constant is know as the "constant of proportionality". Ratios are proportional if they represent the same relationship. One way to see if two ratios are proportional is to write them as fractions and then reduce them. If the reduced fractions are the same, your ratios are proportional.

Answer: weight

Step-by-step explanation:

Answer:

8/37

Step-by-step explanation:

First subtract 450 - 370.

450 - 370 = 80

Then put it into fraction form where the increase is the numerator and the cost from last year is the denominator.

80/370

Then, simply the fraction (if possible).

8/37

Answer:

i think you have to subtract 450-370 and remember that number (80) then i think you add 370+450 (820) and then see how many 80s can go into 820 (10.2 i believe) and then that's it

Step-by-step explanation:

i believe thats it, sorry if wrong but im trying

Answer:

32

Step-by-step explanation:

Answer: i think 3900

Step-by-step explanation:

Answer:

I think No

Explanation:

We say two figures are similar if they have the same shape, but not necessarily the same size. If they also have the same size, we say they are congruent.

No, if two polygons are similar, it does not necessarily mean that they are congruent.

We have,

Similar polygons have the same shape but can have different sizes. This means that their corresponding angles are equal, and the ratios of their corresponding side lengths are equal.

However, the lengths of the sides themselves may be different.

On the other hand, congruent polygons have both the same shape and the same size.

This means that all corresponding angles and side lengths are equal.

So, while all congruent polygons are similar, not all similar polygons are congruent.

Similar polygons can be scaled versions of each other, but they can have different sizes.

Thus,

No, if two polygons are similar, it does not necessarily mean that they are congruent.

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The recommended rule to sequence the jobs for minimum flow time is the EDD (Earliest Due Date) rule.

The EDD rule prioritizes jobs based on their due dates, where jobs with earlier due dates are given higher priority. By sequencing the jobs in order of their due dates, the goal is to minimize the total flow time, which is the sum of the time it takes to complete each job.

In this case, applying the EDD rule, the sequence of jobs would be as follows:

D (Due on Friday 10th June)

F (Due on Tuesday 14th June)

E (Due on Wednesday 15th June)

C (Due on Friday 17th June)

G (Due on Thursday 16th June)

H (Due on Saturday 18th June)

A (Due on Monday 13th June)

B (Due on Monday 20th June)

By following the EDD rule, we aim to complete the jobs with earlier due dates first, minimizing the flow time and ensuring timely delivery of the orders.

Therefore, the recommended rule for sequencing the jobs in this scenario is the EDD (Earliest Due Date) rule.

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Statistical methods are excellent for capturing quantitative data, which is numerical data that can be measured and analyzed using mathematical calculations.

These methods are commonly used in fields such as economics, psychology, and social sciences to collect, analyze, and interpret data.

In contrast, qualitative data such as opinions, attitudes, and beliefs are better captured using methods such as interviews, focus groups, and case studies.

Which two primary data kinds are there?

Data may be categorized into two main probability : quantitative and qualitative, and both are equally significant.

Why are primary and secondary data different?

Data may be obtained by social and health scientists by speaking with the subjects that interest them directly. These data they gather are referred to as primary data.

The information that has previously been obtained by someone else is another sort of data that might be useful to researchers. Secondary data is what this is.

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ab^2 = 15^2 + 8^2
ab^2 = 289
ab = 17

The Demonstration Concep, two

Step-by-step explanation:A lo largo del texto nuestro enfoque a la geometría es en su mayor parte visual, como debe ser para que el libro sea efectivo

Answer:

2.3333333333333333333333333333333 sec

A line chart is a type of graph used to show the relationship between two variables.

It is used for plotting data points that are connected by a straight line. The two variables can be either continuous or categorical. The line chart is useful for visualizing the relationship between the two variables and how they change over time. Line charts can be used to display data over a period of time, such as stock prices, or to compare different categories of data.

A pyramid chart is a type of graph used to compare different groups of data. It is usually used to show the relative sizes of different categories within a data set. The pyramid chart is generally preferred over the column chart because it is easier to compare the relative sizes of the different categories.

Pie charts are a type of graph used to show the relative size of different categories in a data set. They are useful for visualizing the proportions of the different categories. Pie charts can generally be used instead of bar charts, but they are not as useful for comparing the relative sizes of different categories or for displaying data over a period of time.

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There are 54,912 different combinations for a three of a kind hand in poker.

To calculate the number of combinations for a three of a kind hand in poker, we need to consider the following:

Choose the rank of the three-of-a-kind: There are 13 ranks in a standard deck of cards, so we have 13 options.

Choose the three cards of the chosen rank: There are 4 cards of each rank in a deck, so we can choose 3 cards from the 4 available. This can be calculated as a combination, denoted as "4 choose 3," which is equal to C(4, 3) = 4.

Choose the ranks for the remaining two cards: We have 12 remaining ranks to choose from, excluding the rank of the three-of-a-kind. We need two different ranks, so this can be calculated as a combination, denoted as "12 choose 2," which is equal to C(12, 2) = 66.

Choose the two cards of the chosen ranks: For each of the chosen ranks, there are 4 cards available. So, we can choose 1 card from each rank, resulting in 4 × 4 = 16 possible combinations.

To find the total number of combinations, we multiply the individual choices:

Total combinations = 13 × 4 × 66 × 16 = 54,912 combinations.

Therefore, there are 54,912 different combinations for a three of a kind hand in poker.

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Answer:2/16

Step-by-step explanation:

Answer:

= 64

do u need the working out?

The equation Start Fraction one-half End Fraction x - 7 + 11 = Start Fraction one-half End Fraction x - x + 4 leads to the conclusion that the value of x can be any real number.

Based on the given information, let's analyze the steps taken by Karissa and determine the value of x.

We start with the equation:

Start Fraction one-half End Fraction left-parenthesis x - 14 right-parenthesis + 11 = Start Fraction one-half End Fraction x - left-parenthesis x - 4 right-parenthesis.

Karissa's first step is to distribute the fractions on both sides of the equation:

Start Fraction one-half End Fraction x - 7 + 11 = Start Fraction one-half End Fraction x - x + 4.

Simplifying further, we combine like terms:

Start Fraction one-half End Fraction x + 4 = Start Fraction one-half End Fraction -x + 4.

The next step is to subtract x from both sides of the equation:

Start Fraction one-half End Fraction x + 4 - x = Start Fraction one-half End Fraction -x + 4 - x.

Simplifying gives us:

Start Fraction one-half End Fraction x - x + 4 = Start Fraction one-half End Fraction -2x + 4.

Now, let's subtract 4 from both sides of the equation:

Start Fraction one-half End Fraction x - x = Start Fraction one-half End Fraction -2x.

Simplifying further:

Start Fraction one-half End Fraction x = - Start Fraction one-half End Fraction x.

From this step, we can observe that the variable x cancels out on both sides of the equation.

This means that no matter what value we assign to x, the equation remains true.

Therefore, the value of x can be any real number.

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Answer:

Yes

Step-by-step explanation:

The correct ranking of the spheres according to the magnitude of the electric field they produce at point P (greatest first) is: 1 > 2 > 3. The answer is option C.

Since all three spheres have the same charge Q and radius, the magnitude of the electric field at point P due to each sphere is proportional to 1/d^2, where d is the distance between the center of the sphere and point P. Therefore, the sphere closest to point P will produce the greatest electric field at that point.

Assuming that the three spheres are arranged in a straight line with sphere 1 being the closest to point P and sphere 3 being the farthest, we can rank the spheres according to the magnitude of the electric field they produce at point P as follows:

Sphere 1 produces the greatest electric field at point P since it is the closest to it.

Sphere 2 produces the second greatest electric field at point P since it is farther away from point P than sphere 1 but closer than sphere 3.

Sphere 3 produces the smallest electric field at point P since it is the farthest from it.

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The number of socks for Hailey will be 163.

The Percentage is defined as representing any number with respect to the 100. It is denoted by the sign %.

Given that:-

The number of Haley's socks will be calculated as=

Socks = 777 x 21/100

Socks = 777 x 0.21

Socks = 163

Therefore the number of socks for Hailey will be 163.

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The NPV is positive, it is worth taking the Investment.

Net Present Value (NPV) is an assessment method that determines the attractiveness of an investment. It is a technique that determines whether an investment has a positive or negative present value.

This method involves determining the future cash inflows and outflows and adjusting them to their present value. This helps determine the profitability of the investment, taking into account the time value of money and inflation.The formula for calculating NPV is:

NPV = Σ [CFt / (1 + r)t] – CIWhere CFt = the expected cash flow in period t, r = the discount rate, and CI = the initial investment.

The given problem can be solved by using the following steps:

Calculate the present value (PV) of the expected cash inflows:

Year 1: $28,000 / (1 + 0.08)¹ = $25,925.93Year 2: $28,000 / (1 + 0.08)² = $24,009.11Year 3: $28,000 / (1 + 0.08)³ = $22,173.78Total PV = $72,108.82

Calculate the PV of the initial investment: CI = $7,000 / (1 + 0.08)¹ + $35,000 / (1 + 0.08)²CI = $37,287.43Calculate the NPV by subtracting the initial investment from the total PV: NPV = $72,108.82 – $37,287.43 = $34,821.39

Since the NPV is positive, it is worth taking the investment.

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a. The null hypothesis (H0): The population mean weight of HKUST students is 58kg    The alternative hypothesis (H1): The population mean weight of HKUST students is not 58kg.

b. We should use a two-sided test because the alternative hypothesis is not specific about the direction of the difference.

c. We should use a t-test because the population standard deviation is not known and we are working with a small sample size (n = 16).

To find the t-statistic, we can use the formula:

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

In this case, the sample mean is 60kg, the population mean is 58kg, the population standard deviation is 3.3kg, and the sample size is 16.

d. Using the given values, we can calculate the t-statistic as follows:

t = (60 - 58) / (3.3 / √16)

 = 2 / (3.3 / 4)

 = 2 / 0.825

 = 2.42

To find the p-value, we need to compare the t-statistic to the critical value associated with the 1% level of significance and the degrees of freedom (n - 1 = 16 - 1 = 15). Using a t-table or statistical software, we find that the critical value for a two-sided test at 1% level of significance is approximately 2.947.

e. Since the absolute value of the t-statistic (2.42) is less than the critical value (2.947), we fail to reject the null hypothesis. This means that there is not enough evidence to support the claim that the population mean weight of HKUST students is not 58kg.

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Answer:

D

Step-by-step explanation:

(8x)² is the area of a square with a side length 8x,

because we want to find out how much space is inside a square that has two dimensions 8x length and 8x width.

Answer:

C.) 60

Step-by-step explanation:

120 + 60 = 180, each line segment = 180 unless it's a circle making it 360