help please will mark brainliest

Answer:

A triangle  ABC has 3 sides and they have to satisfy the following.

     | a - b |  <  c < (a+b) 

 length of a side must be less the sum of the other two and more than the difference between the other two.

Hence,  the third side,  has to be more than  (15-12) = 3 cm.   Also it has to be less than (15+12) = 27 cm.     It is in between  3 cm and 27 cm

Answer:

7 or 12

Step-by-step explanation:

Since we're dealing with a triangle, there are two pairs of sides that are going to be equal to each other.

The left and right would be 7 by 7, and the top and bottom would be 12 by 12.

Step-by-step explanation:

2+2=4

4+3+5+4=16

That's the answer hope you understand

Answer:

3+4+5

Step-by-step explanation:

its write answer

Answer:

A = 4 in²

Step-by-step explanation:

Given 2 similar figures with sides in ratio a : b , then

ratio of areas = a² : b²

here ratio of sides = 3.5 : 14 = 1 : 4 , then

ratio of areas = 1² : 4² = 1 : 16

That is the area of the larger pentagon is 16 times the area of smaller , so

area of smaller A = 64 ÷ 16 = 4 in²

Answer:

B. Homeowners pay additional property taxes

Step-by-step explanation:

Answer:

x = -12

Step-by-step explanation:

−10x + 1 + 7x = 37

Combine like terms

-3x+1 = 37

Subtract 1 from each side

−3x + 1 -1 = 37-1

-3x = 36

Divide each side by -3

-3x/-3 = 36/-3

x = -12

Answer:

D) \(1 < x\leq 4\)

Step-by-step explanation:

1 is not included, but 4 is included, so we can say \(1 < x\leq 4\)

In the back-propagation example from page 137, the weights W0B, W1B, W2B, and W3B need to be adjusted. The learning rate is mentioned as 0.1, which contradicts a possible typo stating 0.01.

Explanation: In back-propagation, the learning rate determines the step size for weight adjustments during training. In this example, assuming the learning rate is 0.1, we need to update the weights W0B, W1B, W2B, and W3B accordingly. The learning rate of 0.1 means that each weight update will be 10% of the gradient, leading to larger updates compared to a learning rate of 0.01.

To adjust the weights, we can follow the back-propagation algorithm, which involves calculating the gradients of the loss with respect to each weight and then updating the weights accordingly. Since the specific details of the example on page 137 are not provided, it's challenging to give precise instructions on adjusting the weights. However, we can assume that the weights mentioned (W0B, W1B, W2B, and W3B) are associated with a neural network's biases. In that case, we would update the weights using the formula: new_weight = old_weight - learning_rate * gradient. By substituting the learning rate as 0.1, we can adjust the weights to update them with larger steps compared to a learning rate of 0.01, leading to potentially faster convergence during training.

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Answer: what type of math is that?

Step-by-step explanation:

The probability that one or fewer workers will leave within the first year is 0.472

To calculate the probability, we sum up the probabilities of exactly 0 and exactly 1 employee leaving within the first year.

P(X ≤ 1) = P(X = 0) + P(X = 1)

Using the binomial probability formula, we can calculate each term:

P(X = 0) = (36 choose 0) * (0.18^0) * (0.82^36)

P(X = 1) = (36 choose 1) * (0.18^1) * (0.82^35)

Let's calculate these probabilities:

P(X = 0) = (1) * (1) * (0.82^36) = 0.155

P(X = 1) = (36) * (0.18) * (0.82^35) = 0.317

Now, we can sum up these probabilities:

P(X ≤ 1) = P(X = 0) + P(X = 1) = 0.155 + 0.317 = 0.472

Therefore, the probability that one or fewer workers will leave within the first year is 0.472 (rounded to three decimal places).

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Answer:

             \(\underline{\,\underline{\bold{(x+2)^2-13}}\,}\)

Step-by-step explanation:

You can do it by completing the square:

\(x^2+4x-9\\\\\underbrace{x^2+4x+4}-4-9\)

We add 4 to complete the square but we also subtract 4 because we don't  want to change the equation (+4-4=0 so it doesn't change anything in equation)

\(x^2+4x+4=x^2+2\cdot x\cdot2+2^2\)

so we get:

\(\underbrace{x^2+4x+4}-4-9\\\\{}\quad (x+2)^2-13\)

The vertex is:  (-2, -13)

(because x+2=x-h  ⇒h=-2 and  +q=-13 ⇒ q=-13)

We can also use that:

\(ax^2+bx+c=a(x-h)^2+k\)   for   \(h=\frac{-b}{2a}\,,\quad k=ah^2+bh+c\)

\(x^2+4x-9\quad\implies\quad a=1\,,\ b=4\\\\h=\frac{-4}{2\cdot1}=-\frac42=-2\\\\k=(-2)^2+4(-2)-9=4-8-9=-13\\\\a(x-h)^2+k\\\\1(x-(-2))^2+(-13)\\\\(x+2)^2-13\)

Answer:

fist bubble i am pretty sure

Step-by-step explanation:

The 98% confidence interval for the average age of all students at this college is an option (C) which is (24.301, 25.699)

Confidence interval:

A range of values such that the population parameter can be expected to contain for the given confidence level is termed the confidence interval. In other words, it can be defined as an interval estimate of the population parameter which is calculated for the given data based on a point estimate and for the given confidence level.

Moreover, the confidence level indicates the possibility that the confidence interval can contain the population parameter. Usually, the confidence level is denoted by . The value is chosen by the researcher. Some of the most common confidence levels are 90%, 95%, and 99%.

The Confidence interval for the mean is:

x ± \(z_{a/2}\) (s/√n)

Step: 1

Here, the confidence level is 0.98.

For (1-α) = 0.98

α = 0.02

From the Standard Normal Table, the required

\(Z_{0.02}\)

The value is obtained below:

That is,

P(Z≤z) = 0.02

The procedure for finding the z-value is listed below:

From the table of standard normal distribution, locate the probability value of 0.02.

Move left until the first column is reached. Note the value as 2.3.

Move upward until the top row is reached. Note the value as 0.03.

The intersection of the row and column values gives the area to the two tails of z.

That is,

P(Z≤2.33) = 0.02

From the standard normal table, the required value for a 98% confidence level is 2.33.

Locate the probability of 0.02 in the standard normal table and identify the corresponding row and column values to obtain the value of

\(Z_{0.02}\)

Thus, the 98% confidence interval for the average age of all students at this college is (24.301, 25.699).

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The two numbers  which satisfy the given conditions are 35 and 39.

Let's assume the larger number to be x and the smaller number to be y.

According to the question,The larger of two numbers is four more than the smaller number,

x = y + 4

The sum of the number is 74.

x + y = 74

Now we can solve the above equations:

We can substitute x in the second equation:

x + y = 74

y + 4 + y = 74

Combine like terms

2y = 70

Divide by 2 on both sides

y = 35

Now we can find x by substituting y into the first equation:

x = y + 4x

= 35 + 4x

= 39

Thus, the two numbers are 35 and 39.

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Answer:

Step-by-step explanation:

a) Complete the table

                          Monday             Tuesday            Wednesday             Total

Female       21-14=7                 38-13-7= 18                 13                          38

Male              14                       33-18= 15                 26-13 =13            80-38=42

Total        80-33-26= 21                 33                          26                      80

b) P(the student is a female) = 38/80= 0.475

c) P(the student visited the library on Tuesday) = 33/80= 0.4125

Answer:

a) Monday Total: 21.

Monday Female: 7.

Tuesday Female: 18.

Tuesday Male: 15

Wednesday Male: 13

Male Total: 42.

b) 47.5% probability that the student is a female.

Step-by-step explanation:

a) How to find Monday Total: We have the totals for Tuesday and Wednesday, and we know the total of all three days is 80. So, we need to find the difference between Tuesday + Wednesday & all 3 days, to find the total of Monday. What we do is add 33 + 26 which equals to 59. Then, we remove 59 from 80 (80-59). The answer we get is 21, which is the difference between the two. That's Monday's total.

How to find Male Wednesday: We already have Wednesday Female, and the total for Wednesday. But now we're finding the Wednesday Male. Find the difference between Wednesday Total and Female (26-13). The answer is 13! The Wednesday Male is therefore 13.

How to find Male Total: We have to find the difference between the complete total (80) and the Female total (38). Subtract: (80-38). The answer you get is 42!

How to find Tuesday Male: Now that we have the Wednesday Male, and the Male Total, we can easily find the Tuesday Male! The Male Total is 42, and we know the Male Monday is 14, along with the Male Wednesday being  13. Add Male Monday and Male Wednesday together. (13+14=27). Now take that and remove it from 42. (42-27). The answer we get is 15. 15 is our Tuesday Male.

How to find Monday Female: We already know what the Monday Total is from previous calculations(21), so all we have to do now is find the difference from the Monday Total and the Male Monday to find the Female Monday. Subtract: (21-14) The answer we will get is 7. The Monday female is 7.

How to find Tuesday Female: We already have Tuesday Male, and the Tuesday Total, so we subtract the Tuesday Male from the Tuesday Total. (33-15). The answer we get is 18.

b) The answer would be 47.5% because 38 is 47.5% of 80. How? Divide 38 by 80. The answer would be 0.475. Now, multiply that answer by 100. You get 47.5! That's the percentage.

This is my first question that I've answered, I'm sorry if there are any mistakes!

Answer:

its 63

Step-by-step explanation:

Answer:

\( \frac{15.75}{0.25} = \frac{1575}{25} \\ = 63\)

...............................

Answer:

Step-by-step explanation:

SOLVING

================================================================

6=-2(7-c)

Use distribution to multiply -2 by parenthesis

6=-14+2c

Add to both sides 14

20=2c

Divide 2 into both sides

10=c

5(h-4)=8

Use distribution to multiply 5 by the parenthesis

5h-20=8

Add to both sides 20

5h=28

Divide 5 into both sides

\(h=\frac{28}{5}\)

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Answer:

Primer número = x = 9

Segundo número = y = 5

Step-by-step explanation:

La suma de dos números es 14 y el doble del primer número sumado con el segundo es 23 ¿cuáles son los números?

Representamos:

Primer número = x

Segundo número = y

La suma de dos números es 14

x + y = 14 ..... Ecuación 1

x = 14 - y

El doble del primer número sumado al segundo es 23

2x + y = 23

Sustituimos 14 - y por x

Por eso:

2 (14 - y) + y = 23

28 - 2 años + y = 23

-y = 23 - 28

-y = -5

y = 5

Resolviendo para x

x = 14 - y

x = 14 - 5

x = 9

Por lo tanto,

Primer número = x = 9

Segundo número = y = 5

Answer:

I could be wrong on this BUT

Step-by-step explanation:

4x+10=30

-10=-10

4x = 20

x= 5

Answer:  1. Using the word "to." Using the colon between the numbers (Ex. 6:3) Fraction Notation. (Ex. 6/3)

2. Fraction: 7/10  Colon: 7:3  To: 7 to 10

3. Fraction: 9/2   Colon: 9:2  To: 9 to 2

4. Total marbles are 17.

A. 10:7

B. 7:17

C. 17:10

Answer:

time = 70 minutes

Answer:

2/3+2/3+2/3+2/3+2/3

Step-by-step explanation:

The probability distribution of the sample mean is approximately normal, with mean of 24.4 points and standard deviation of 1.175 points.

By the Central Limit Theorem, the sampling distribution of sample means of size n has standard deviation given by the equation presented as follows: \(s = \frac{\sigma}{\sqrt{n}}\).

The mean is the same as the population mean, of 24.4 points, while the shape is approximately normal.

The standard error is given as follows:

\(s = \frac{4.7}{\sqrt{16}} = 1.175\)

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There are 144 possible sequences of chip colors.

We can solve this problem by counting the number of possible sequences of chip colors that can be drawn from the bag until the total value of the chips is at least $7.

Let's consider all the possible sequences of chips that can be drawn from the bag. The first chip can be any of the 6 chips in the bag. For each chip color, there are different scenarios that can happen after drawing the first chip:

Therefore, the total number of possible sequences of chip colors that can be drawn from the bag until the total value of the chips is at least $7 is: 2 x 32 + 1 x 32 + 3 x 16 = 144

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If r is < 0, then lambda must be:  Less than 0, Less than 1, Greater than 1  and Greater than 0. The correct answers are: A), B), C), and D).

Recall that the exponential growth or decay model is given by the function:

\(y = y0 * e^(rt)\)

where y0 is the initial value of the function, r is the rate of change (growth or decay), t is the time, and e is the mathematical constant approximately equal to 2.71828.

If r < 0, then the function represents exponential decay, and we have:

\(y = y0 * e^(rt)\)

y/y0 = e^(rt)

Taking the natural logarithm of both sides, we get:

ln(y/y0) = rt

r = (1/t) * ln(y/y0)

Since ln(y/y0) is the natural logarithm of a ratio, it can take any real value. Therefore, r can take any negative value, and there is no restriction on the value of lambda (which is\(e^r\)).

So, the correct answers are: A), B), C), and D).

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Answer:

A. Ariel wants to find the difference of a number and 13.

Step-by-step explanation:

Just took the test

Answer:

A

Step-by-step explanation:

A EDGE 2021

The fraction 1/18 has the following decimal expansion :\($0.0556=\frac{0}{10}+\frac{5}{100}+\frac{5}{1000}+\frac{6}{10000}$\) . The fraction 1/18 is 0.05 .

The fraction 1/18 has the following decimal expansion:

\($0.0556=\frac{0}{10}+\frac{5}{100}+\frac{5}{1000}+\frac{6}{10000}$\)

A number's representation in base-10 is known as its decimal expansion (i.e., in the decimal system). Each "decimal place" in this system is made up of a digit from 0 to 9, arranged so that each digit is multiplied by a power of 10, decreasing from left to right, and with a decimal place designating the s place.

The real or inferred decimal point of a number is represented in its expanded form, or decimal form. 10.2 and 0.0084 are examples of decimal values that have actual decimal places. The entire number 17, which is really represented by the decimal point 17.000000000000, is an illustration of a number with inferred decimal points. It is a number in algebra that is irrational.

Therefore the correct answer is option C ) 0.05 .

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According to the question Approximately 60% of Americans are in the working class and 80% of the people in the U.S. are lower middle class. The correct answer is D. \(\(60\%\)\) and \(\(10\%\)\).

The working class typically comprises individuals involved in manual labor, skilled trades, or service-oriented jobs. They often earn wages and may have lower income levels compared to other classes.

The percentage of Americans in the working class can vary based on factors such as economic conditions, industry trends, and societal changes. The lower middle class generally includes individuals who have achieved some level of education beyond high school and hold white-collar or technical jobs.

They often have moderate incomes and may have attained some level of financial stability. The percentage of people in the U.S. who fall into the lower middle class can also fluctuate based on economic factors and social dynamics.

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Answer:4 and 8?

Step-by-step explanation:

Answer:

12

Step-by-step explanation:

All the denominators are factors of 12.

Answer:

To the lump sum needed to be invested to receive $10,000 in 10 years at 6.6% interest compounded daily, we can use the present value formula:

PV = FV / (1 + r/n)^(n*t)

where PV is the present value or the initial investment, FV is the future value or the amount we want to end up with, r is the annual interest rate in decimal form, n is the number of times the interest is compounded per year, and t is the time in years.

Plugging in the numbers, we get:

PV = 10000 / (1 + 0.066/365)^(365*10)

= 4874.49

Therefore, the lump sum needed to be invested is about $4,874.49.