URGENT
A box without a top is to be made from a rectangular piece of a cardboard with the given dimensions by cutting out square corners with a side length of x. The dimensions of the cardboard are 6m x 12m. What expression represents the volume, V, of the box in terms of x?
Answer:
x45
Step-by-step explanation:
A triangle has two sides of lengths 6 and 9. What value could the length of
the third side be? Check all that apply.
OA. 7
B. 2
C. 4
OD. 15
□E. 10
O F. 12
SUBMIT
B. 2 and OD. 15 are not possible lengths for the third side of the triangle.
To determine the possible values for the length of the third side of a triangle, we need to consider the triangle inequality theorem, which states that the sum of the lengths of any two sides of a triangle must be greater than the length of the third side.
Given that two sides have lengths 6 and 9, we can analyze the possibilities:
6 + 9 > x
x > 15 - The sum of the two known sides is greater than any possible third side.
6 + x > 9
x > 3 - The length of the unknown side must be greater than the difference between the two known sides.
9 + x > 6
x > -3 - Since the length of a side cannot be negative, this inequality is always satisfied.
Based on the analysis, the possible values for the length of the third side are:
A. 7
C. 4
□E. 10
O F. 12
B. 2 and OD. 15 are not possible lengths for the third side of the triangle.
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is 1212 divisible by 3?
Yes, 1212 divided by 3 = 404.
Answer:
YESStep-by-step explanation:
Sum the digits. The result must be divisible by 3.
1+2+1+2=6
6:3=2
YES
A goldsmith mixes 10oz of a 30% gold alloy with 20oz of a 15% gold alloy. What is the percent concentration of the resulting alloy?
Solution
10 oz of a 30 % gold alloy
20 oz of a 15 % gold alloy
\(\begin{gathered} 10.30\text{ \% + 20.15 \% = 30. x} \\ \frac{30}{100}\times10+\frac{15}{100}\times20=30x \end{gathered}\)\(\begin{gathered} 0.3(10)+0.15(20)=30x \\ 3+3=30x \\ 6=30x \\ x=\frac{6}{30} \\ x=0.2 \end{gathered}\)0.2 to percentage
= 0.2 x 100 = 20 %
Hence the percent concentration = 20 %
Therefore the percent concentration of the resulting alloy = 20%
When I do not get a perfect score on my test, I feel __________.
Answer:
When I do not get a perfect score on my test, I feel __dissapointed________.
Step-by-step explanation:
Answer:
Step-by-step explanation:
scared to go home
Plz answer this question
Answer:
y=2x+2
slope intercept of a line:
y= mc+c
In the connectionist model, the weights vary as a function of training, in which feedback as to the correctness or incorrectness leads to a mathematical adjustment of the weights. A commonly used training procedure for this weight adjustment is known as ___.
In the connectionist model, the weights vary as a function of training, in which feedback as to the correctness or incorrectness leads to a mathematical adjustment of the weights. A commonly used training procedure for this weight adjustment is known as the backpropagation algorithm.
The Backpropagation algorithm is a supervised learning method for training artificial neural networks of multi-layer perceptrons.The Backpropagation algorithm has two steps: forward propagation and backpropagation. The forward propagation is the calculation of the outputs of the network neurons and the calculation of the error from the desired output.
The backpropagation is the process of updating the weights and biases of the network. The backpropagation algorithm uses a loss function to calculate the difference between the actual output and the expected output. The objective of the algorithm is to minimize the loss function.
This algorithm is considered as one of the most effective algorithms for training artificial neural networks.
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please help me with my math 68m^2 + 20m + 10 - 30m + 2m^2 -10
Answer:
this is what I got 70m^2-10m
I need help with this it’s geometry this is my 2nd time asking for help
Answer:
The measure of angle WVX is 140°.
Step-by-step explanation:
Let x be the measure of angle WVX.
\( \frac{14}{9} \pi = 2x\)
\( x = \frac{7}{9} \pi( \frac{180}{\pi}) = 140 \: degrees\)
Answer:
angle = arc length/radius
in this case, the arc length is 14/9*\(\pi\) and the radius is 2. Upon multiplying these, you get 140.
so, the answer is 140 degrees.
Look at the factors of 24 and 32.
Factors of 24: 1, 2, 3, 4, 6, 8, 12, 24
Factors of 32: 1, 2, 4, 8, 16, 32
Answer:
The answer is 8 The GCF of 24 and 32 is 8
Step-by-step explanation:
Hope this helps
Answer:
the answer is 8
Step-by-step explanation:
Please help me answer these 3 questions
The scale of the blue print is 1 inch to 4 yards, and the scale of the map is 1 inch to 25 miles.
How to find the scale lengths?First, we know that ;ary's room is 6 yards, while on the blue print it is 1.5 inches, to get the scale we can write the relation:
1.5 inches = 6 yards.
Now we can divide both sides by 1.5 to get:
(1.5 in)/1.5 = (6 yd)/1.5
1 in = 4 yd.
Each inch on the blue print represents 4 real yards.
b) Now we know that the real distance is 125 miles, while the distance on the map is 2.5 inches, so the scale of the map is:
2.5 in = 125 mi
1 in = (125 mi)/2.5
1 in = 25 mi
That is the scale of the map
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Ignore the stuff I have wrote down but answer please??
Answer:
x=4
Step-by-step explanation:
7x-2=12x-22
7x-12x=-22+2
-5x=-20
x=20÷5
=4
QUIZ 4-2: PARALLEL LINES & TRANSVERSALS
Identify each angle pair, and tell whether each set is congruent or
supplementary.
1. Type:
or
2. Type:
or
3. Type:
supplementary?
supplementary?
or supplementary?
21 and 27
21 and 23
22 and 2
1. <1 and <7 are supplementary.
2. <1 and <3 are supplementary.
3. <2 and <6 are congruent angles.
What are Supplementary Angles and Congruent Angles?Supplementary angles are two angles that add up to 180 degrees. In other words, they are angles that "complete" each other, forming a straight line. If two angles are supplementary, they are said to be "supplementary to each other."
Congruent angles are angles that have the same measure. They are written with the symbol "≅" and are read as "is congruent to." Two angles are congruent if they have the same degree measure.
1. Angles 1 and 7 add up to 180 degrees, therefore, they are supplementary.
2. Also, angles 1 and 3 are supplementary.
3. Angles 2 and 6 are corresponding angles, therefore, they are congruent angles.
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prov
1. In the farm of Mr. Alvarez there are 12 chickens, 15 carabaos, 6 ducks and
8 cows. What is the ratio between the number of ducks and chickens?
a 12.15
b. 6 is to 12
d. 15.6
Answer:
B
Step-by-step explanation:
Answer:
The answer is 6 to 12
Step-by-step explanation:
There are 6 ducks, and 12 chickens so therefore the ratio of ducks to chickens is 6:12. Hope this helps! (Brainliest pleasee I need one more!!) <3
what is the probability of obtaining a z value less than 1.5?
Answer:
About .9332
Step-by-step
This tells us that the probability that a z value is less than or equal to 1.5 is about .9332. Thus, the shaded region is about 93.32% of the entire curve. Let's try another example.
Hello help me answer this please ?
Answer: 26.35mm^2
Step-by-step explanation:
The equation for area of a triangle is (base x height) divided by two.
Add. (-x + 6) + (-5x + 8)
Rob says -3(x-2) is equivalent to -3x-6. What was his error?
A) heshould have written -3x-2 which would have given him the right answer.
B) hedid not multiply 3 with x to get 3x, and instead put -3x.
C) he had no error.
D) he did not multiply -3 with -2 to get +6 instead of -6
Answer:
D) he did not multiply -3 with -2 to get +6 instead of -6
Step-by-step explanation:
-3(x - 2)
-3x + 6
Compare the two
-3x + 6 ≠ -3x - 6
They are not equal! Looking at the options, D is the answer.
Answer:
The correct answer is D) he did not multiply -3 with -2 to get +6 instead of -6.
To expand -3(x-2), we need to distribute -3 to both terms inside the parentheses, which gives us:
-3(x-2) = -3x + (-3(-2)) = -3x + 6
Therefore, the correct equivalent expression is -3x + 6, not -3x - 6 as Rob wrote. He made a mistake in multiplying -3 and -2, which should have given him +6 instead of -6.
(please mark my answer as brainliest)
1. school a's graduation rate is 10 points higher than school b's. how much higher do we expect a's giving rate to be? 2. how does the answer to question 1 change if we learn that a and b have identical student-to-faculty ratio? why would the answer to question 1 change? 3. which of the 123 schools has the most (least) giving rate? please elaborate on your finding as to what other variables (s) might have contributed to the differences in giving rates? 4. consider a school similar to ours. we have a 67% graduation rate and a student-to-faculty ratio of 17:1, 34% of the classes have fewer than 20 students, 23% of the classes have more than 50 students, and we have a freshman retention rate of 77%. should this school's giving rate be greater than or less than 8%?
To estimate the difference between the giving rates of school A and school B, we must first identify the missing value. It is not given in the statement.
1. However, it can be assumed that the giving rate of school B is 0%, as the difference between the two figures should be expressed as a percentage.
If school A has a graduation rate of 90%, we can estimate its giving rate as follows: Given that school A's graduation rate is 10 points higher than school B's graduation rate, the Giving rate of school A = (90 + 10)% = 100%Thus, school A's giving rate is expected to be 100%.2. If we learn that schools A and B have identical student-to-faculty ratios, the answer to the previous question would not change. The student-to-faculty ratio has no bearing on the graduation and giving rates of the school.
The student-to-faculty ratio is a measure of class size and may be used to determine how well the school is prepared to manage the educational needs of its students.3. The question does not provide a list of 123 schools to choose from. It is not possible to determine the school with the highest or lowest giving rate without this information.
4. To calculate whether the school's giving rate is greater or lesser than 8%, we must first estimate the value of the giving rate. The problem statement does not provide a clue to the school's giving rate.
Nonetheless, we can estimate that the giving rate of a school with a 67% graduation rate and a freshman retention rate of 77% would be relatively lower than 8%. Schools with a higher graduation rate are more likely to have a higher giving rate because their alumni are more inclined to contribute to the institution.Therefore, it is not possible to calculate the school's giving rate without more information.
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There are four candidates for homecoming queen and three candidates for king. How many king-queen pairs are possible?
The number of possible king-queen pairs can be determined by multiplying the number of candidates for king by the number of candidates for queen.
To calculate the number of king-queen pairs, we multiply the number of candidates for king by the number of candidates for queen. In this case, there are four candidates for homecoming queen and three candidates for king. Therefore, the total number of king-queen pairs would be 4 multiplied by 3, which equals 12.
Each candidate for king can be paired with each candidate for queen, resulting in multiple possible combinations. By multiplying the number of candidates for each position, we account for all possible pairings. In this scenario, there are three potential kings and four potential queens. For each king, there are four possible queens he can be paired with. Since there are three kings, we multiply 3 by 4 to get the total number of 12 king-queen pairs.
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Can anyone please solve this quadratic equation
X=-1/2( y-2)2 +3
Find axis of symmetry
Focus
Directrix
Vertex
Answer:
could this be it
Step-by-step explanation:
3. If x and y vary directly, and x = 60 when y = 5, what is the value of у when x = 36 ?
Answer:
y = 3
Step-by-step explanation:
Use the direct variation equation, y = kx
Plug in 60 as x and 5 as y, and solve for k
y = kx
5 = k(60)
1/12 = k
So, the equation is y = 1/12x
Plug in 36 as x and solve for y
y = 1/12x
y = 1/12(36)
y = 3
So, when x = 36, y = 3
Which of the following search algorithms should be used on large arrays if speed if important?
BinaryascendingBubble sortAll of the above
If speed is important and the array is large, the a. Binary search algorithm should be used. This algorithm is designed to efficiently search through sorted arrays by repeatedly dividing the search interval in half.
It has a time complexity of O(log n), which means that as the size of the array increases, the time it takes to search for an item will not increase at the same rate.
On the other hand, ascending bubble sort and other sorting algorithms such as selection sort and insertion sort have a time complexity of O(n^2), which means that as the size of the array increases, the time it takes to sort the array will increase exponentially. Therefore, these algorithms are not efficient for large arrays and should not be used if speed is important.
In summary, when dealing with large arrays and speed is important, binary search is the best algorithm to use for searching, while ascending bubble sort and other sorting algorithms with a time complexity of O(n^2) should be avoided.
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find the zeros of the function in the interval (-2pi 2pi) f(x)=1/2cos2x
The zeros of the function f(x) = 1/2cos(2x) in the interval (-2π, 2π) are: x = π/4, 3π/4.
To find the zeros of the function f(x) = 1/2cos(2x) in the interval (-2π, 2π), we need to solve the equation f(x) = 0.
We know that the cosine function has zeros at x = π/2, 3π/2, 5π/2, etc. So we need to find all values of x in the interval (-2π, 2π) that satisfy the equation cos(2x) = 0.
Using the double angle formula for cosine, we have:
cos(2x) = 2cos²(x) - 1 = 0
Solving for cos(x), we get:
cos(x) = ±sqrt(1/2)
So the solutions for cos(2x) = 0 are:
x = π/4, 3π/4, 5π/4, 7π/4
However, we need to check which of these solutions are within the interval (-2π, 2π).
Since π/4 and 3π/4 are both between -2π and 2π, they are valid solutions. But 5π/4 and 7π/4 are not within the interval, so we can discard them.
Therefore, the zeros of the function f(x) = 1/2cos(2x) in the interval (-2π, 2π) are: x = π/4, 3π/4.
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FIND THE DUARATION OF TIME IN HOURS AND MINUTES.
A)0930 HOURS AND 2245 HOURS = WHAT IS THE ANSWER??
Answer:
here's your answer hope it helps you
Step-by-step explanation:
a. 0930 hrs= 9:30 am
b. 2245 hrs= 22:45pm(10:45 pm).
Sarah rides her bike three days a week. She rides for 10 minutes a day. How many minutes does Sarah spend riding her bike after two weeks?
Answer:
1 hour after 2 weeks
Step-by-step explanation:
She rides 3 days a week, and 10 minutes a day. Multiplying 3 and 10 gets you 30 minutes a week. Over a 2 week period, that is 60 minutes (1 hour)
Answer:
140 mins
Step-by-step explanation:
add 70+20
como se escribe la cantidad en letra de 855672019
La cantidad 855672019 descrita en palabras es Ochocientos cincuenta y cinco millones seiscientos setenta y dos mil diecinueve.
¿Cómo representar una cantidad mediante una frase?
En este ejercicio debemos representar en palabras la cantidad asociada al conjunto de dígitos descritos en el enunciado. Para leer y describir un número se lee de izquierda a derecha, en donde un dígito a la derecha tiene más magnitud que un dígito a la izquierda, de modo que se comienza con el dígito de mayor magnitud hasta alcanzar el de menor magnitud.
8 - Ochocientos millones
5 - Cincuenta millones
5 - Cinco millones
6 - Seiscientos mil
7 - Setenta mil
2 - Dos mil
01 - Diez
9 - Nueve
En consecuencia, la cantidad 855672019 es Ochocientos cincuenta y cinco millones seiscientos setenta y dos mil diecinueve.
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What
is the value of In e^4
Answer:
\(\displaystyle lne^4 = 4\)
General Formulas and Concepts:
Algebra II
Natural Logarithms ln and Euler's number e
Logarithmic Property [Exponential]: \(\displaystyle log(a^b) = b \cdot log(a)\)Step-by-step explanation:
Step 1: Define
Identify
\(\displaystyle lne^4\)
Step 2: Evaluate
Rewrite [Logarithmic Property - Exponential]: \(\displaystyle 4lne\)Simplify: \(\displaystyle 4(1)\)Assume that the recovery time for an individual from an infectious disease can be modeled as a normal distribution. (a) Calculate the time, d, in days for an individual to recover from being initially infected, with a 95% confidence level, assuming that the likelihood of recovering at any time is modeled as a normal distribution with a mean of 5 days and a standard deviation of 0.5 days. (b) Use the SIR model that you constructed previously. Assume that a city of 10 million people is confronted with a potential infectious epidemic. A ship arrives at the international airport carrying 100 individuals who are infected, but are unaware that they are infected. While contagious, infected individuals come into transmission contact with another individual once every 2 days. The recovery process is modeled using the Poisson process from Part (a). Assume that recovered individuals that survive develop immunity to the disease. Plot the fraction of susceptible individuals, infected individuals, and recovered individuals as a function of time throughout the epidemic. (c) What fraction of the total population will have ultimately come down with the infectious disease once the epidemic is over? How many days after the ship docking did this number finally reach steady state (i.e.,the epidemic is completely over). (d) What is the basis for this structured model (i.e.,scale, time, etc.)? What is/are the major assumptions associated with the structure?
Upper
daysThe(a) The time for an individual to recover from an infectious disease, is estimated to be between 4.02 and 5.98 days. (d) The structured SIR model assumes homogeneous mixing, constant population, recovered immunity.
(a) To calculate the time for an individual to recover with a 95% confidence level, we can use the properties of the normal distribution. The 95% confidence interval corresponds to approximately 1.96 standard deviations from the mean in both directions.
Given:
Mean (μ) = 5 days
Standard deviation (σ) = 0.5 days
The confidence interval can be calculated as follows:
Lower limit = Mean - (1.96 * Standard deviation)
Upper limit = Mean + (1.96 * Standard deviation)
Lower limit = 5 - (1.96 * 0.5)
= 5 - 0.98
= 4.02 days
Upper limit = 5 + (1.96 * 0.5)
= 5 + 0.98
= 5.98 days
Therefore, the time for an individual to recover from the infectious disease with a 95% confidence level is between approximately 4.02 and 5.98 days.
(b) To simulate the epidemic using the SIR model, we need additional information about the transmission rate and the duration of infectivity.
(c) Without the transmission rate and duration of infectivity, we cannot determine the fraction of the total population that will have come down with the infectious disease once the epidemic is over.
(d) The structured model in this case is the SIR (Susceptible-Infectious-Recovered) model, which is commonly used to study the dynamics of infectious diseases. The major assumptions associated with the SIR model include:
Homogeneous mixing: The model assumes that individuals in the population mix randomly, and each individual has an equal probability of coming into contact with any other individual.
Constant population: The model assumes a constant population size, without accounting for birth, death, or migration rates.
Recovered individuals develop immunity: The model assumes that individuals who recover from the infectious disease gain permanent immunity and cannot be reinfected.
No vaccination or intervention: The basic SIR model does not incorporate vaccination or other intervention measures.
These assumptions simplify the model and allow for mathematical analysis of disease spread dynamics. However, they may not fully capture the complexities of real-world scenarios, and more sophisticated models can be developed to address specific contexts and factors.
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PROBLEM SOLVING WITH TREND LINES
2. 75
2. 50
Part I: The scatter plot at the left shows the
cost of gas per gallon during certain years.
Use the scatter plot to answer questions 1-5.
2. 25
2. 00
2017-1970 = ?
1. 75
1. 50
PRICE OF GAS PER GALLON ($)
1. 25
Y=0. 05(?) +0. 25
1. 00
. 75
. 50
. 25
5
10
15 20 25 30 35 40 45 50
YEARS (SINCE 1970)
The trend line equation y = 0.05x + 0.25 can be used to accurately predict the cost of gas per gallon for any year since 1970.
The equation of the trend line in the scatter plot is given by y = 0.05x + 0.25, where x is the number of years since 1970 and y is the price of gas per gallon in dollars. This equation can be used to calculate the price of gas in a given year since 1970. For example, if we want to calculate the price of gas in 2017, we can plug in x = 47 (the number of years since 1970) into the equation to get y = 0.05(47) + 0.25 = 2.85. This means that in 2017, the price of gas per gallon was approximately 2.85 dollars. This equation can be used to accurately predict the cost of gas for any given year since 1970.
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