Answer:
3
Step-by-step explanation:
3/4 ÷ 1/4 = ?
Dividing two fractions is the same as multiplying the first fraction by the reciprocal (inverse) of the second fraction.
Take the reciprocal of the second fraction by flipping the numerator and denominator and changing the operation to multiplication. Then the equation becomes
3/4 × 4/1
For fraction multiplication, multiply the numerators and then multiply the denominators to get
3 × 4 / 4 × 1 = 12/4
Since 12 divided by 4 equals 3 then,
12/4 = 3
Therefore 3/4 ÷ 1/4 = 3
Someone help please. (The teacher added an extra question for some reason but please help with all.)
The probability of obtaining tails and the number 5 is 1/12
the probability of obtaining an even number is 1/2
P(heads and prime number) 1/4
How to calculate the probabilitySince the events are independent, the probability of obtaining tails and the number 5 is:
P(tails and 5) = P(tails) * P(5) = (1/2) * (1/6) = 1/12
The coin toss outcome is irrelevant, so the probability of obtaining an even number is:
P(even number) = 1/2
The probability of obtaining heads and a prime number is:
P(heads and prime number) = P(heads) * P(prime number) = (1/2) * (1/2) = 1/4
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A boy had a packet of 320 candies with 2 different flavours. 7/16 were orange flavour and the rest were lemon. He gave his friend 30 orange candies and some lemon ones. As a result, the ratio of the number of orange candies to that of lemon became 11:15. How many lemon candies did he give his friend
30 lemon candies he give his friend.
It is given that a boy had 320 candies. There were 2 flavors. 7/16 were orange flavor and the rest were lemon. He gave his friend 30 orange candies and some lemon ones.
320 (7/16) = 140 were orange
320 - 140 = 180 were lemon
Let x be the number of lemon ones he gave away
So,
[ 140 - 30 ] / [ 180 - x ] = 11/15
110 = (11/15) ( 180 - x )
(15/11) (110) = 180 - x
150 = 180 - x
x = 180 - 150 = 30
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PLEASE HELP ASAP!!
Solve the equation below.
A. 196
B. 198
C. 243
D. 248
Answer:
196
Step-by-step explanation:
I calculated it with my calculator
Estimate to the nearest whole number: 10.25 + 54.3 + 16.8 = ?
Answer: 81
Step-by-step explanation: If you add all of the numbers, then you end up getting 81.35 and 81.35 estimated to the nearest whole number is 81 because that's the closest whole number to 81.35.
Which inequality is represented by this graph?
-5 4 -3 -2 -1 0 1
N
3
4
5
Answer:
x≥0
Step-by-step explanation:
The arrow is moving right, to the larger numbers from the starting point at 0. This means that x has to be greater than 0
Because the point at 0 is an empty white dot, it means that it is a 'greater than or equal to' symbol ( looks like this ≤ or ≥, depending on which side you write the x)
So, the final answer is x is greater than or equal to 0, which in maths terms looks like this x≥0, or this 0≤x.
NOTE:
- filled in dot on the number line = greater than, or less than (>)
- empty dot on number line [like the one on this Q] = greater than or equal to, or less than or equal to (≥)
write 25×10^6 in standard form. Please can someone help me
Answer:
2.5*10^7
Step-by-step explanation:
Standard form is always a number between 1 and 10 (but never exactly 10) multiplied by 10 to the power of something. Just divide the 25 by 10, so it can be used in standard form, and increase the power by 1. Hope this helped! :^)
what’s 17x3-11y2-14y3
Answer:
3x^3-11y^2
Step-by-step explanation:
17x^3 -11y^2 -14x^3
collect like terms
17x^3 -14x^3 =3x^3
3x^3-11y^2
I hope it helps.
Use a triple integral to find the volume of the given solid.
The solid enclosed by the paraboloids
y = x2 + z2
and
y = 72 − x2 − z2.
The volume of the given solid is 2592π.
We need to find the volume of the solid enclosed by the paraboloids
y = x^2 + z^2 and y = 72 − x^2 − z^2.
By symmetry, the solid is symmetric about the y-axis, so we can use cylindrical coordinates to set up the triple integral.
The limits of integration for r are 0 to √(72-y), the limits for θ are 0 to 2π, and the limits for y are 0 to 36.
Thus, the triple integral for the volume of the solid is:
V = ∫∫∫ dV
= ∫∫∫ r dr dθ dy (the integrand is 1 since we are just finding the volume)
= ∫₀³⁶ dy ∫₀²π dθ ∫₀^(√(72-y)) r dr
Evaluating this integral, we get:
V = ∫₀³⁶ dy ∫₀²π dθ ∫₀^(√(72-y)) r dr
= ∫₀³⁶ dy ∫₀²π dθ [(1/2)r^2]₀^(√(72-y))
= ∫₀³⁶ dy ∫₀²π dθ [(1/2)(72-y)]
= ∫₀³⁶ dy [π(72-y)]
= π[72y - (1/2)y^2] from 0 to 36
= π[2592]
Therefore, the volume of the given solid is 2592π.
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Please help me solve number 1. Urgent.
Answer:
x^-(3/2) which is (1)
Step-by-step explanation:
squared root of x³ is basically x^(3/2)
And if the question is 1/x^(3/2), then you can simply answer x^-(3/2) which is (1)
Which of the following statements must be true about this diagram?
Answer:
Options (B), (D) and (E)
Step-by-step explanation:
In the figure attached, a triangle has been given with interior angles x, y and z and exterior angle as w.
By the exterior angle theorem,
"Exterior angle formed by extending one side of a triangle is equal to the opposite two interior angles."
Therefore, x° + y° = w°
Since measure of angle w is equal to the sum of two angles x and y,
So, w° > x°
Similarly, w° > y°
Therefore, Options (B), (D) and (E) are the correct options.
HURRY!! (52 POINTS!!)
The ages of people visiting a senior center one afternoon are recorded in the line plot.
A line plot titled Ages At Senior Center. The horizontal line is numbered in units of 5 from 60 to 115. There is one dot above 80 and 110. There are two dots above 70 and 85. There are three dots above 75.
Does the data contain an outlier? If so, explain its meaning in this situation.
A. No, there is no outlier. This means that the people were all the same age.
B. No, there is no outlier. This means that the people are all around the mean age.
C. Yes, there is an outlier at 110. This means that one person's age was 110, which is 25 years older than the next closest age.
D. Yes, there is an outlier of 110. This means that the average person at the center is 110 years old.
Answer:
C. Yes, there is an outlier at 110. This means that one person's age was 110, which is 25 years older than the next closest age.
Step-by-step explanation:
An outlier is a data point that sticks out like a sore thumb. It's so different from the rest of the data that it makes you wonder if it's a mistake or a miracle. One way to spot an outlier is to use the 1.5IQR rule, where IQR stands for interquartile range. The interquartile range is the gap between the third quartile (Q3) and the first quartile (Q1) of the data. The 1.5IQR rule says that any data point that is more than 1.5*IQR above Q3 or below Q1 is an outlier.
In this case, the first quartile (Q1) is 75, the third quartile (Q3) is 85, and the interquartile range (IQR) is 10. So, any data point that is more than 1.5*10 = 15 above 85 or below 75 is an outlier. The only data point that does this is 110, which is 25 above 85. That means 110 is an outlier.
What does this outlier mean in this situation? It means that one person who came to the senior center that afternoon was way older than the rest of the folks. The average age of the visitors was not changed by this outlier, since it was just one out of 12 data points. But, the outlier does mess up the range and the standard deviation of the data, making them bigger than they would be without the outlier.
Answer:The answer is C
Step-by-step explanation:I did the test.
Please answer question and I will mark you brainliest
Answer:
(7,-1)
Step-by-step explanation:
(x , y) ---> (x - 3, y +4)
(10 , -5) ----> (10-3 , -5 +4) = (7,-1)
Solve the equation.
8-2x = -8x + 14
O x=-1
0 x = -3/5
0 x = 3/5
O x = 1
Answer:
8-2x = -8x + 14
Add 8x to both sides:
8x - 2x = 14 + 8x
Simplify:
6x = 14 + 8x
Subtract 8x from both sides:
6x - 8x = 14
Simplify:
-2x = 14
Divide both sides by -2:
x = -7
Therefore, the solution is x = -7.
Answer:
x = 1Step-by-step explanation:
Subtract 8 from both sides to get - 2x = -8x + 6Add 8x on both sides, you get 6x = 6Divide by 6 into both sides to get x = 18 - 2x = -8x + 14
-8 = -8
- 2x = -8x + 6
+8x = +8x
6x = 6
x = 1
How would you suggest that managers avoid the quick-fix mentality that makes management by best-seller so tempting?
You can suggest that managers should avoid the quick-fix mentality that makes management by best-seller so tempting by implementing the following strategies:
1. Understand the Unique Nature of Your Business: Managers should take the time to understand the unique nature of their business. They should realize that what worked for another company may not work for their own company.
2. Avoid Short-Term Solutions: Managers should avoid short-term solutions that provide quick results. They should focus on long-term solutions that will benefit the organization in the long run.
3. Develop a Comprehensive Strategy: Managers should develop a comprehensive strategy that includes long-term goals and objectives. They should also have a plan in place to achieve those goals.
4. Invest in Employee Development: Managers should invest in employee development by providing training and development opportunities. This will help to build a strong workforce that is capable of handling complex challenges.
5. Encourage Collaboration: Managers should encourage collaboration among team members. This will help to create a culture of teamwork and cooperation.
6. Monitor Progress: Managers should monitor progress and adjust strategies as necessary. This will help to ensure that the organization is on track to achieving its goals.
By following these strategies, managers can avoid the quick-fix mentality that makes management by best-seller so tempting. They can focus on long-term solutions that will benefit the organization in the long run.
Hope this helped you...
how to factor 3x^2-9x-84
To solve a question like this, you will need to factorise the first term of the expression out.
So, our expression becomes
\(3(x^2\text{ }-3x-28)\text{ }\)
Now, you will need to find the factors of 28 whose sum will give you -3
Always remember to express it in terms of x.
The answer to that is -7x and +4x. Thus we can rewrite the expression as;
\(\begin{gathered} 3(x^2-7x+4x-28) \\ 3\left\lbrace x(x-7)+4(x-7)\right\rbrace \text{ }\Longrightarrow\text{ By factorizing the terms of the expression } \\ 3\left\lbrace x(x-7)+4(x-7)\right\rbrace \text{ }\Longrightarrow\text{which can further be factorized as} \\ 3(x-4)(x-7) \end{gathered}\)In summary 3x^2-9x-84 can be factorized as
\(3(x-4)(x-7)\)Pocahontas weighs 8.5 kg. Her brother is 3 times as heavy. How
31
4
much does her brother weigh?
Your answer is in bold below!
8.5 x 3 = 25.5
Answer: Her brother is 25.5 kg.
Step-by-step explanation:
If her brother is 3 times as heavy, we need to multiply 8.5 kg by 3.
8.5 kg times 3 is 25.5 kg.
find an equation of the plane. the plane through the points (0, 5, 5), (5, 0, 5), and (5, 5, 0)
An equation of the plane through the points (0, 5, 5), (5, 0, 5), and (5, 5, 0) is x+y+z=10.
To find the equation of a plane (say A) that passes through three given points, we first find two vectors parallel to the plane A using the three points we know lie in the plane.
The cross-product of the two vectors found above provides a normal to the plane A.
Two vectors parallel to the plane A can be calculated by taking the difference between pairs of the given points:
(0, 5, 5) - (5, 0, 5) = <0, 5, -5> and (5, 0, 5) - (0, 5, 5) = <5, -5, 0>.
A vector perpendicular to the plane A should be the cross-product of <5, -5, 0> and <0, 5, -5>, so we have
\(\left[\begin{array}{ccc}i&j&k\\5&-5&0\\0&5&-5\end{array}\right]\)
= i(25-0)-j(-25-0)-k(25-0)
Here, d=(25×5+25×5+25×0)=250
So, the equation can be 25x+25y+25z=250
x+y+z=10
Therefore, an equation of the plane through the points (0, 5, 5), (5, 0, 5), and (5, 5, 0) is x+y+z=10.
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Opportunity to get Brainliest! I will put various questions and will mark BRAINLIEST!
Answer:
parallel
Step-by-step explanation:
Parallel lines have equal slopes.
Calculate the slopes m using the slope formula
m = \(\frac{y_{2}-y_{1} }{x_{2}-x_{1} }\)
with (x₁, y₁ ) = (- 1, 2) and (x₂, y₂ ) = (2, 3)
m = \(\frac{3-2}{2+1}\) = \(\frac{1}{3}\)
Repeat with (x₁, y₁ ) = (0, 0) and (x₂, y₂ ) = (3, 1)
m = \(\frac{1-0}{3-0}\) = \(\frac{1}{3}\)
Since slopes are equal then parallel
What is an example of slope-intercept form?.
Answer:
y = 3x + 1
Step-by-step explanation:
The equation for slope-intercept form is y=mx+b, where m is the slope and b is the y-intercept.
we are worried that is measured with error in our survey. let tvhours denote the reported hours of television viewing per week. what do the classical errors-in-variables (cev) assumptions require in this application? do you think the cev assumptions are likely to hold? explain.
The classical errors-in-variables (CEV) assumptions require that the measurement error in tv hours is not related to the true value of television viewing.In other words, the error should be random and not correlated with the actual amount of time spent watching TV.
Additionally, the CEV assumptions require that the measurement error has a mean of zero and a constant variance. Whether or not the CEV assumptions are likely to hold in this application depends on several factors. One important consideration is the accuracy of the survey instrument used to collect data on tv hours.
If the survey is poorly designed or administered, it may introduce systematic measurement error that is correlated with the true value of television viewing.
Another important factor is the population being surveyed. If the population is highly diverse with respect to television viewing habits, it may be difficult to ensure that the CEV assumptions hold for all subgroups.
Overall, while it is possible that the CEV assumptions hold in this application, it is also possible that they do not. Researchers should carefully consider the potential sources of measurement error and take steps to minimize them if possible.
Additionally, sensitivity analyses can be conducted to explore the robustness of study results to violations of the CEV assumptions.
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Which number like inequality represents n<-1?
A culture of bacterial triples in size every four hours. If the bacteria population is estimated to be three million now, what will it be one day from now?
A principal of $3200 is invested at 7.75% interest, compounded annually. How much will the investment be worth after 13 years?
\(~~~~~~ \textit{Compound Interest Earned Amount} \\\\ A=P\left(1+\frac{r}{n}\right)^{nt} \quad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{original amount deposited}\dotfill &\$3200\\ r=rate\to 7.75\%\to \frac{7.75}{100}\dotfill &0.0775\\ n= \begin{array}{llll} \textit{times it compounds per year}\\ \textit{annually, thus once} \end{array}\dotfill &1\\ t=years\dotfill &13 \end{cases} \\\\\\ A=3200\left(1+\frac{0.0775}{1}\right)^{1\cdot 13}\implies A=3200(1.0775)^{13}\implies A\approx 8444.51\)
What is the answer to x - 5 > 12?
Answer:
x > 17
Step-by-step explanation:
x - 5 > 12 ( isolate x by adding 5 to both sides )
x > 17
-------------- from your comment
x - (- 5) > 12 , that is
x + 5 > 12 ( subtract 5 from both sides )
x > 7
pls helpppp me
i shall give brainliest
Answer:
B
Step-by-step explanation:
A) -4
B) results in a non-terminating, non-repeating decimal, which is irrational
C) 2
D) 4
the daily scrum is an event that happens every day. what would be three concerns if the frequency were to be lowered to every two or three days
Three problems would arise if the frequency of scrum was lowered to every two or three days.
(A) There may be missed opportunities to examine and amend the sprint backlog.
(B) The Sprint strategy deteriorates; barriers are raised and taken down more slowly.
(C) Too much time is spent updating the scrum board prior to meetings.
What is a scrum?
Scrum is a project management framework that was initially focused on software development, while it has now been applied to other areas such as research, sales, marketing, and cutting-edge technology.
It is intended for groups with ten or fewer members who divide their work into tasks that can be finished in sprints, which are time-boxed iterations that can be done in as little as one month and most frequently two weeks.
If the frequency was reduced to every two or three days, there would be three issues.
(A) The chances to review and modify the Sprint Backlog may be missed.
(B) The Sprint plan becomes imprecise; obstacles are raised and removed more slowly.
(C) Too much time is spent before meetings updating the scrum board.
Therefore, three problems would arise if the frequency was lowered to every two or three days.
(A) There may be missed opportunities to examine and amend the sprint backlog.
(B) The Sprint strategy deteriorates; barriers are raised and taken down more slowly.
(C) Too much time is spent updating the scrum board prior to meetings.
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a bag contains a collection of distinguishable marbles. the bag has 5 red marbles, 3 green ones, and 6 blue ones. shelby grabs a handful at random of 6 marbles. what is the probability that exactly three of the marbles are red?
The probability that exactly three of the marbles Shelby grabs are red is approximately 27.97%.
To find the probability that exactly three of the marbles Shelby grabs are red, we can use the formula for combinations and probability. The probability can be calculated as follows:
Probability = (Number of favorable outcomes) / (Total possible outcomes)
First, we'll find the total possible outcomes by using the combination formula, which is C(n, k) = n! / (k! (n-k)!) where n is the total number of marbles, and k is the number of marbles being grabbed.
Total marbles = 5 red + 3 green + 6 blue = 14 marbles
Total possible outcomes = C(14, 6) = 14! / (6! * (14-6)!) = 3003
Next, we'll find the number of favorable outcomes. To get exactly three red marbles, Shelby must grab 3 red marbles, 2 non-red marbles (green or blue), and 1 more non-red marble (green or blue). We'll find the combinations for each case and multiply them together.
Favorable outcomes = (C(5, 3) * C(9, 3)) = (5! / (3! * (5-3)!)) * (9! / (3! * (9-3)!)) = 10 * 84 = 840
Finally, we'll calculate the probability:
Probability = Favorable outcomes / Total possible outcomes = 840 / 3003 ≈ 0.2797 or 27.97%
So, the probability that exactly three of the marbles Shelby grabs are red is approximately 27.97%.
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$60/year is equivalent to $_____/month.
Answer:
5 dollars a month
Step-by-step explanation:
There are 12 months in a year, so we divide the yearly amount by 12
60/12 = 5
5 dollars a month
you and 9 friends are playing a game of basketball. after the game is overall, everyone shakes hands. how many distinct handshakes took place if every player shook hands with everyone who played?
45 Distinct handshakes took place when every player shook hands with everyone who played.
To find out how many distinct handshakes took place if every player shook hands with everyone who played, we will
use the concept of combinations.
Identify the number of players involved, which is 10 (you plus 9 friends).
Use the formula for combinations: C(n, k) = n! / [k! × (n-k)!],
where n is the total number of players and k is the number of players in each handshake (which is 2).
Plug in the values: C(10, 2) = 10! / [2! × (10-2)!].
Calculate the factorial values: 10! = 3,628,800, 2! = 2, and 8! = 40,320.
Plug in the factorial values and calculate: C(10, 2) = 3,628,800 / (2 × 40,320) = 3,628,800 / 80,640 = 45.
So, 45 distinct handshakes took place when every player shook hands with everyone who played.
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Write 51/7 in radical form