Answer:
4
Step-by-step explanation:
because 25% times 4 makes 100 so it is 4
What numbers fill the boxes in this equation?
By algebra properties, the complete algebraic equation is now described:
a · x · (x + 3) + 7 · x · (2 · x + 1) = 5 · x · (a · x + 5), where a = 7 / 2.
How to complete an algebraic equation by comparing the terms
An algebraic equation is shown herein, this expression must completed by filling the blanks. This can be done by clearing a variable through algebra properties:
a · x · (x + 3) + 7 · x · (2 · x + 1) = 5 · x · (a · x + 5)
a · x² + 3 · a + 14 · x² + 7 · x = 5 · a · x² + 25 · x
(a + 14) · x² + 7 · x + 3 · a = 5 · a · x² + 25 · x
Then, by comparing terms:
a + 14 = 5 · a
14 = 4 · a
a = 14 / 4
a = 7 / 2
The complete expression is introduced below:
(7 / 2) · x · (x + 3) + 7 · x · (2 · x + 1) = 5 · x · [(7 / 2) · x + 5]
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g etween two variables may be explained away by the presence of another variable that accounts for the original correlation. These relationships are known as
A spurious correlation is a correlation between two variables that appears to be causally linked but is actually due to the influence of a third variable that is not considered. The correct answer is spurious correlation.
Spurious correlations are correlations that exist between two variables, but they are not actually causally related to one another, despite the fact that they appear to be causally related at first glance. The relationship between two variables may be accounted for by a third variable that was previously overlooked or not considered, causing the original correlation to be explained away. Spurious correlations are commonly found in science and research, and they can lead to misleading results if not properly identified and accounted for. It is critical to account for all potential confounding variables in order to establish causal links between variables and avoid spurious correlations. Therefore, researchers must carefully consider all variables that might influence the relationship between two variables to avoid drawing inaccurate conclusions.
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The 30 members of a choir are trying to raise at least $1,500 to cover travel costs to a singing camp. They have already raised $600. Which inequality could you solve to find the average amounts each member can raise that will at least meet the goal?
Answer:
30x + 600 is greater than or equal to 1,500
x is the amount each member would have to raise.
x = 30
Each member needs to raise at least $30
Which is a better deal 20 oz soda bottle for $1.80 or 12 oz for $1.25
20 oz soda bottle for $1.80
Explanation
to solve this , find the unit rate and compare
Step 1
unit rate 1
\(\text{unit rate=}\frac{total\text{ cost}}{N\nu\text{mber of oz}}\)then
Let
total cost=$1.80
number of ounces=20
replace
\(\begin{gathered} \text{unit rate=}\frac{total\text{ cost}}{N\nu\text{mber of oz}} \\ \text{unit rate=}\frac{1.8\text{ dollars}}{20\text{ ounces}}=0.09\text{ dollars per oz=0.090}\frac{dol}{oz} \end{gathered}\)Step 2
now, for option 2
Let
cost=1.25 dollars
number of ounces=12
replace
\(\begin{gathered} \text{unit rate=}\frac{total\text{ cost}}{N\nu\text{mber of oz}} \\ \text{unit rate=}\frac{1.25}{12}=0.104\text{ dollars per ounce=0.104}\frac{dol}{oz} \end{gathered}\)the better deal is teh cheapest option,
Hence, the better deal is option one
20 oz soda bottle for $1.80
I hope this helps you
Think of a real-life situation, different from the situations already described in this activity, where knowing the percent
error would be helpful.
In a short paragraph, describe the situation and include the percent error. Explain why knowing the percent error is
helpful.
Answer:
Suppose the next case.
You want to buy an object from another state or country, you know that the cost of this object is C, and for bringing it from another place, you need to pay a tax, such that you do not know the exact value of the tax, you know that this can be between 3% and 9%.
Then the tax can be written as:
6% ± 3%
then the error is 3%, this means that the percent error is:
(3%/6%)*100% = 50%
Then you know that there is an error of 50% in the tax.
This can be helpful so you can estimate the maximum and minimum cost of tax that you will pay for this purchase.
Also there are a lot of situations where the percent error give us a lot of information.
"a measure of 10 cm with an error of 1 cm"
The percent error is: (1cm/10cm)*100% = 10%
And in a measure of 3cm with an error of 1cm we have:
(1cm/3cm) = 33.33%
In both cases we have the came error, but different percent error.
Then the percent error also tell us how much the error affects our measure.
How was triangle A translated?
O four units left
O four units right
O six units left
O six units right
Answer:
six units rights
Step-by-step explanation:
I don't have one but I know because I've had kt
the product 2√3 and 3√12 in simplified form is
The product of 2√3 and 3√12 in simplified form is 6√36. To simplify this expression, we can first multiply 2 and 3 to get 6. Then, we can simplify the square root of 3 and the square root of 12 by finding their prime factorizations:
√3 = √(3 * 1) = √3
√12 = √(12 * 1) = √(2^2 * 3) = 2√3
So, 2√3 = 2 * √3 = 2 * √3
And, 3√12 = 3 * 2√3 = 6√3
Finally, the product of 2√3 and 3√12 is 6 * 6√3 = 6√36.
when a positive integer is expressed in base 7, it is $ab 7$, and when it is expressed in base 5, it is $ba 5$. what is the positive integer in decimal?
17 is the integer expressed in base 10.
Given that,
The base 7 representation of a positive integer is AB and its base 5 representation is BA, where A and B are digits from 1 to 4, inclusive.
We have to find what is the integer expressed in base 10.
We know that,
Base 7 representation of a positive integer AB.
Can be written as 7A+B in base 10.
Base 5 representation of BA can be written as 5B+A in base 10.
So, 7A+B= 5B+A
6A=4B
A=2/3B
Now, A and B must be in 1 to 4.
The digits between 1 and 4 who are 2/3 of another is 2 and 3.
A=2 and B=3
So,
Base 7 is 23
And Base 5 is 32
Base 7 is 23 is 17 of base 10.
And Base 5 is 32 is 17 of base 10.
A=17
Therefore, 17 is the integer expressed in base 10.
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In a right triangle, cosine a = 0.352 and sine a = 0.936. what is the approximate value of tangent a? 0.329 0.376 1.288 2.659
The value of tangent a in the right triangle in which , cosine a = 0.352 and sine a = 0.936 is 2.659.
What are the trigonometric ratios?Trigonometric ratios for a right angled triangle are from the perspective of a particular non-right angle. The value of tangent of angle is equal to the ratio of sine of that angle to the cosine of that angle.
\(\tan\theta=\dfrac{\sin\theta}{\cos\theta}\)
Here, θ is the angle.
The value of angle given in the problem are,
Cosine a = 0.352 Sine a = 0.936.Put these values in the above fromula as,
\(\tan (a)=\dfrac{\sin(a)}{\cos(a)}\\\tan (a)=\dfrac{0.936}{0.352}\\\tan(a)=2.659\)
Hence, the value of tangent a in the right triangle in which , cosine a = 0.352 and sine a = 0.936 is 2.659.
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Answer:
D(2.659)
Step-by-step explanation:
got it right on edg
a three-digit number is chosen among all three-digit numbers. what is the probability that it will have distinct even digits?
The probability that it will have distinct even digits is 6/1000.
The first digit can take on 5 values (0,2,4,6,8).
The second digit could take on 4 values (one less than 5 to be unique).
The third digit could take on 3 values (two less than 5 to be unique).
So that makes,
N=5.4.3
N=60
P= 60/1000
P=3/50
So there are 60 unique three digit even numbers.
There are 1000 possible outcomes.
ABOUT PROBABILITYProbability and statistics are two fundamental concepts in mathematics. Probability is about the probability of an event, whereas statistics are about how different techniques are used to process different data.
Probability and statistics allow us to process complex data in a very understandable way.
Probability is one of the most popular topics in statistics. The reason is that this one theory is often used when trying to predict something. For example, figuring out what comes out of a random series of events. For simplicity, probability is also called chance or probability.
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a statistics professor receives an average of five e-mail messages per day from students. assume the number of messages approximates a poisson distribution. what is the probability that on a randomly selected day she will have no messages? multiple choice 0.0335 0.0000 it is impossible to have no me
The correct option is A: 0.0335. The probability that the professor will have no messages on a randomly selected day ,
can be calculated using the Poisson distribution formula, where the mean is given as 5. The formula is P(X=0) = e^(-λ) * λ^0 / 0!, where λ is the mean. Substituting the values, we get P(X=0) = e^(-5) * 5^0 / 0! = e^(-5) ≈ 0.0067 or 0.67%. Therefore, the answer is option A: 0.0335.
This means that on average, the professor is expected to receive 5 emails per day, but there is a small chance that she will receive no emails on any given day.
In this case, the probability is quite low, only 0.67%. However, it is not impossible to have no messages, even though it is unlikely.
It is important to note that the Poisson distribution is a probability model used to describe the occurrence of rare events over time or space, and it assumes that the events are independent of each other and occur randomly.
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NEED HELP IN NEED THE ANSWER BY TO NIGHT PLE.
A deli sells small, medium, and large sack lunches. Each bottle of water costs $1, and each apple costs $1. Each sandwich costs s dollars. Some customers buy sack lunches, and some customers buy items separately.
Amy buys 8 sandwiches and 12 waters. Her total cost is 8s + 12.
Bob buys 8 small sack lunches. These sack lunches include 1 sandwich, 1 water, and 1 apple. His total cost is 8(s + 2).
Cathy buys 4 medium sack lunches. These sack lunches do not include water. Her total cost is 4(2s + 3).
Part C
Dave buys 5 sandwiches for $31.25. Write an expression that can be used to find the cost of x sandwiches. Show your work or explain your answer.
Fill in the missing values in this table.
Part D
How much did Amy pay? How much did Bob pay? How much did Cathy pay? Show your work or explain your answer.
Answer:
Step-by-step explanation:
1 sandwich is 6.25 (because 31.25/5)
2 sandwiches is 12.5
3 sandwiches are 18.75
4 sandwiches are 25
5 sandwiches are 31.25
6 sandwiches are 37.5
Amy - 8s + 12
8(6.25) +12 = 62
Amy paid $62.
Bob - 8(s + 2)
8(6.25 + 2) = 66
Bob pays $66.
Cathy - 4(2s + 3)
4(2 x 6.25 + 3) = 62
Cathy paid $62.
plz help look at the pic below
Answer:
You can use the exponential rule where
\((n^x)^y=n^{xy}\)
Therefore,
\((a^3)^{-2}=a^{3*(-2)}=a^{-6}\)
\(\\ \rm\leadsto (a^3)^{-2}\)
(a^m)^n=a^mn\(\\ \rm\leadsto a^{-6}\)
\(\\ \rm\leadsto \dfrac{1}{a^6}\)
Translation of a PointWhat is the image point of (5,-5) after a translation right 2 units and up 3 units?Submit Answer
ANSWER
(7, -2)
EXPLANATION
We want to know the image point after a translation.
A translation is basically a shift in the position of the object.
The object point is (5, -5) and it translates 2 units right and 3 units up.
That means there is a shift +2 units on the x axis and +3 units on the y axis.
Therefore, the image point is:
(5 + 2, -5 + 3)
= (7, -2)
That is the image point.
NEED HELP IMMEDIATELY!
Simplify 10√2y + 5√2y + 3√2y.
A. 18√6y
B. 18√2y
C. 12√2y
D. 18√6y^3
(ANSWER IS NOT A)
18 root
2
Step-by-step explanation:
In this question imagine there is no y
It will be 10 root2 +5 root2 +3 root 2 it will be 18 root 2
what is 0.476 as a fraction?
0.47619047619- is the whole number.
\( \frac{5}{7} \times \frac{2}{3} \)
= 0.47619047619
what is the number as a fraction.
Answer:
\(\frac{5}{7} *\frac{2}{3} \\\frac{10}{21}\)
Step-by-step explanation:
Hence 10/21 is the fraction of 0.47619047619
The whole number 0.476 as a fraction is 119/250.
What is the fraction?Fractions are the numerical values that are a part of the whole. A whole can be an object or a group of objects.
A fraction is represented as;
\(\rm Fraction =\dfrac{Numerator}{Denominator}\)
The given number is;
0.476
The number in the form of the fraction is;
\(=0.476\\\\=\dfrac{476}{1000}\\\\=\dfrac{238}{500}\\\\= \dfrac{119}{250}\)
Hence, the whole number 0.476 as a fraction is 119/250.
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If you take the opposite of the product of 8 and -2, will the answer be less than -5, between -5 and 5 and 10, or greater than 10?
Answer: Greater than 10.
2 5. 8 11 X 2 -4 8 у 14 What is the equation of the given table?
Answer:
8-6+-2
Step-by-step explanation:
A six faced dice is rolled 6 times. Find the probability of getting at LEAST one 3.
Answer:
it's a 1/6 chance because it's a 6 faced dice
the national average.
If the national average for a gallon of gas is $2.59, how much
should you expect to pay for gas in Philadelphia versus
Cleveland?
A. $3.03 / $2.75
B. $1.95 / $2.59
C. $2.34 / $2.75
D. $2.75 / $3.24
Philadelphia Clevland
Overall 92 78
Food 106 106
Housing 56 27
Utilities 130 126
Transportation 117 106
Health 102 113
The correct answer is D. $2.75 / $3.24
To determine how much you should expect to pay for gas in Philadelphia versus Cleveland, we need to compare the transportation expenses in both cities. Based on the given data, the transportation expenses are as follows:
Philadelphia: $117
Cleveland: $106
To calculate the expected gas prices, we need to consider the transportation expenses relative to the national average. The formula to find the expected gas price is:
Expected Gas Price = National Average * (Transportation Expense / National Average)
National Average for gas = $2.59
For Philadelphia:
Expected Gas Price in Philadelphia = $2.59 * ($117 / 92) ≈ $3.30
For Cleveland:
Expected Gas Price in Cleveland = $2.59 * ($106 / 78) ≈ $3.51
Comparing the expected gas prices, we find that:
A. $3.03 / $2.75: This option does not match the expected gas prices in Philadelphia and Cleveland.
B. $1.95 / $2.59: This option does not match the expected gas prices in Philadelphia and Cleveland.
C. $2.34 / $2.75: This option does not match the expected gas prices in Philadelphia and Cleveland.
D. $2.75 / $3.24: This option matches the expected gas prices in Philadelphia and Cleveland.
Therefore, the correct answer is:
D. $2.75 / $3.24
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convert the following ratios into percentages 25:36
Answer:
69.444% is percentage of 25:36
The manager of Gabriella's furniture store is trying to figure out how much to charge for a bookshelf that just arrived the bookshelf was bought at a wholesale price of $147 and Gabriella's furniture store marked up all furniture by 60% at what price should the manager sell the bookshelf
Answer:
2.45
Step-by-step explanati
You build a taser-net that you can use to stun and catch drones, before tagging them and re-releasing them into the wild. Working for a week, you manage to tag 400 drones, releasing them back into the wild. After waiting a week, you start catching drones again. Catching another 400 drones, you find that 270 of the drones you’ve caught are tagged, meaning you’d caught them before. 130 of your new catch are untagged, meaning this is the first time that you’ve caught them.Assume drones were equally likely to be caught at all times. Before catching the second batch of drones, there were 400 tagged drones in the wild, the rest were untagged.1) After catching the second batch of drones, what is the smallest number of drones N that might be in the wild, in total?2) What was the sample space of possible sets of 400 drones that you might catch in the second batch? How many possible outcomes is this?3) What was the probability of catching exactly 270 tagged drones and 130 untagged drones, in the second batch?4) What number of drones N makes your second batch results as likely as possible?5) Assuming again that the probability that N = n is proportional to the probability of catching these second batch results with n total drones in the air, find again the smallest nmax so that P(N ≤ nmax) = 0.95.
The answer to the question is 530, C(N, 400), C(400, 270) * C(N - 400, 130) / C (N, 400), 0.95 respectively.
1) After catching the second batch of drones, the smallest number of drones N that might be in the wild, in total, is 530.
This is because we know that there are 400 tagged drones in the wild, and 130 untagged drones that we caught in the second batch.
Therefore, the smallest possible number of drones in the wild is 400 + 130 = 530.
2) The sample space of possible sets of 400 drones that you might catch in the second batch is the set of all possible combinations of 400 drones from the total number of drones in the wild.
The number of possible outcomes is given by the binomial coefficient C(N, 400), where N is the total number of drones in the wild.
3) The probability of catching exactly 270 tagged drones and 130 untagged drones, in the second batch, is given by the hypergeometric distribution:
P(X = 270) = C (400, 270) * C(N - 400, 130) / C(N, 400)
where N is the total number of drones in the wild, and C(n, k) is the binomial coefficient.
4) The number of drones N that makes your second batch results as likely as possible is the number that maximizes the probability of catching exactly 270 tagged drones and 130 untagged drones.
This can be found by taking the derivative of the probability with respect to N and setting it equal to zero, and solving for N.
This will give you the value of N that maximizes the probability.
5) To find the smallest nmax so that P(N ≤ nmax) = 0.95, we need to find the value of nmax that satisfies the equation:
P(N ≤ nmax) = C(400, 270) * C(nmax - 400, 130) / C(nmax, 400) = 0.95
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create a frequency distribution, this time separating results for sex categories. include in your analysis the appropriate measure of central tendency. are there any differences in their measures? explain.
a) Median will be an appropriate measure for the distribution. b) Mean will be an approprate measure for the distribution.
Here we already have the data available to us. From the data, we can clearly see that
Mode < Mean < Median
Hence this is a negatively skewed distribution.
Therefore the appropriate measure of central tendency for this distribution will be the median. The median will tell us the point at which the frequency is divided by 50%.
Hence we can say that the median will a more appropriate measure.
Now if the data has another aspect of sex included, then the frequency column would be divided into separate columns with each gender identity taking up its own column.
Since now this will become multivariate data, the best measure of central tendency will be Mean.
The difference in the measure of central tendency will depend upon how skewed the data for every sex will be. For example, if in a country, men preferred to be educated over women, then the mean for men will be a lot higher than that of women. On the other hand, the EDUC for women will be a lot lower.
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Alejandra is packing a bag for a flight. The airline has a baggage weight limit, and Alejandra has already packed her bag with some essentials. All she has left is her outfits and shoes, which must weigh less than 30 pounds total. what is written equation for this situation?
So its X \(\leq\) 30
Step-by-step explain
The x equals the unknown amount or weight of her luggage.
It has can only be 30 at most
This equation shows that
A number has to be less then or equal to 30
-2x-y=0
-6x+y=10
What is my solution for this ? (Eliminations)
Is this equation linear or nonlinear? *
y = x2 - 9
Answer: The answer is Linear
Step-by-step explanation:
can i have brainliest
Answer:
It is non linear..
As highest power is 2
Step-by-step explanation:
You can see in Detail in attachment i had given..
hey yes...i am not sure if it's 2x or x^2
If it's 2x then answer is linear..
If it's x^2 then answer is non linear
Hope it helps you
Have a nice day
Which expression represents the prime factorization of 325? A. 5 x 5 x 13 B. 5 x 5 x 5 x 3 C. 5 x 5 x 5 x 13 D. 3 x 3 x 5 x 5 x 5
Answer:
a
Step-by-step explanation:
Answer:
A
I know this is a year later lol
What is the answer to 6x-8=22
Answer:
x=5
Step-by-step explanation:
1) Isolate x
To do this you have to get rid of the 8 by adding 8 to both sides
6x-8+8=6x
22+8=30
6x=30
2) Get rid of 6 from both sides
To do this you have to divide 6 both from sides
6x÷6=x
30÷6=5
x=5
Hope this helps, have a great day!!!
3x + 45= 60 solve for x
Answer:
x=5
Step-by-step explanation:
3x + 45 = 60
-45 -45
3x = 15
15 ÷ 3= 5
x= 5
-I hope this helps have a great day!