The algebraic expression for the given statement is: 2x² - 3 = y.
How to Write an Algebraic Expression?To wrote an algebraic expression is translate a statement using numbers, variables, and mathematical sign into a mathematical statement.
Square of x is: x²
Product of x² and 2 is: 2x²
Thus, we would have:
2x² - 3 = y
The algebraic expression is: 2x² - 3 = y.
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Label the sides of the right triangle.
*
2 points
Captionless Image
A) Hypotenuse = 8 m, Adjacent = 15 m, Opposite = 17 m
B) Hypotenuse = 17 m, Adjacent = 8 m, Opposite = 15 m
C) Hypotenuse = 15 m, Adjacent = 17 m, Opposite = 8 m
D) Hypotenuse = 17 m, Adjacent = 15 m, Opposite = 8 m
Answer: D) Hypotenuse = 17 m, Adjacent = 15 m, Opposite = 8 m
please please please help i can't do this anymore
Graph the system of inequalities presented here on your own paper, then use your graph to answer the following questions:
y < 4x − 2
y is greater than or equal to negative 5 over 2 times x minus 2
Part A: Describe the graph of the system, including shading and the types of lines graphed. Provide a description of the solution area. (6 points)
Part B: Is the point (−2, −2) included in the solution area for the system? Justify your answer mathematically. (4 points)
(10 points)
if you abuse the amount of points I put on this question I will report you
Answer:
Photo.
Step-by-step explanation:
A: The graph of the system is all points in the graph that suit 4x-2<y</=-5/2x-2
B: The point (-2,-2) is not included in the solution area. While it suits the second equation, it doesn't suit the first, ruling it out as a possible solution. If you plug in -2 as both y and x in the equation 4x-2>y, you'll get -8>-2, which is false. So, it is not a solution.
A deli sells sliced meat and cheese. One customer purchases 4 pounds of meat and 5 pounds of cheese for a total of $30.50. A sandwich shop owner comes in and purchases 11 pounds of meat and 14 pounds of cheese for $84.50. The system of equations below represents the situation.
4x + 5y = 30.50
11x + 14y = 84.50
The variable x represents the
The variable y represents the
The deli charges $
The quantity of meat and cheese sold by the deli according to the description accounts in the task content are; 4.5 and 2.5 pounds respectively.
What is the quantity of meat and cheese sold by the deli?The quantity of meat sold by the deli as represented by the variable X in the task content can be calculated by solving the systems of equations.
The quantity of cheese sold by the deli as represented by the variable y in the task content can be calculated by solving the systems of equations.
Consequently, solving the system of equations by means of substitution, we have;
y = (30.50-4x)/5
Hence, we have;
11x + 14((30.50-4x)/5) = 84.50
x = 4.5 pounds of meat and
y = 2.5 pounds of cheese.
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Answer Correctly Please, I NEED HELP
Answer Choices:
A. - 12,000
B. 12,000
C. 1,200
D. - 1,200
Answer:
C
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
This would be my answer because of the points you can log at 3 5 and 7
OBFW Publishers
The Graduate Record Examinations (GRES) are widely used to help predict the performance of applicants to graduate schools.
The scores on the GRE Chemistry test are approximately normal with mean 694 and standard deviation 112.
(a) About what percent of test takers earn a score less than 500 on the GRE Chemistry test?
(b) What proportion of test takers earn a score greater than or equal to 900 on this test?
(c) Estimate the score at the 99th percentile on the GRE Chemistry test.
a) About 4.16% of test takers earn a score less than 500 on the GRE Chemistry test.
b) About 96.64% of test takers earn a score greater than or equal to 900 on the GRE Chemistry test.
c) The estimated score at the 99th percentile on the GRE Chemistry test is approximately 954.512.
To answer these questions, we'll use the properties of the normal distribution and the given mean and standard deviation.
(a) To find the percentage of test takers who earn a score less than 500 on the GRE Chemistry test, we need to calculate the cumulative probability up to the score 500.
z-score = (X - mean) / standard deviation
where X is the score we are interested in.
z-score = (500 - 694) / 112
z-score ≈ -1.732
Now, we look up the cumulative probability for a z-score of -1.732 in the standard normal distribution table or use a calculator to find that the cumulative probability is approximately 0.0416 or 4.16%.
So, about 4.16% of test takers earn a score less than 500 on the GRE Chemistry test.
(b) To find the proportion of test takers who earn a score greater than or equal to 900, we need to calculate the cumulative probability from 900 to positive infinity.
z-score = (X - mean) / standard deviation
where X is the score we are interested in.
z-score = (900 - 694) / 112
z-score ≈ 1.839
Now, we look up the cumulative probability for a z-score of 1.839 in the standard normal distribution table or use a calculator to find that the cumulative probability is approximately 0.9664 or 96.64%.
So, about 96.64% of test takers earn a score greater than or equal to 900 on the GRE Chemistry test.
(c) To estimate the score at the 99th percentile on the GRE Chemistry test, we need to find the value that separates the lowest 99% of the scores from the highest 1%.
We use the z-score formula to find the z-score corresponding to the 99th percentile:
z-score = invNorm(0.99)
z-score ≈ 2.326
Now, we use the z-score to find the score corresponding to the 99th percentile:
X = mean + (z-score * standard deviation)
X = 694 + (2.326 * 112)
X ≈ 694 + 260.512
X ≈ 954.512
So, the estimated score at the 99th percentile on the GRE Chemistry test is approximately 954.512.
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spam: a researcher reported that 71.8% of all email sent in a recent month was spam. a system manager at a large corporation believes that the percentage at his company may be 70% . he examines a random sample of 500 emails received at an email server, and finds that 373 of the messages are spam. can you conclude that the percentage of emails that are spam is greater than 70% ? use both
There is sufficient proof to presume that under 77% of messages are spam.
Explain hypothesis test.A statistical hypothesis test is a technique for measurable induction used to conclude whether the information within reach adequately support a specific theory. Speculation testing permits us to offer probabilistic expressions about populace boundaries.
According to question:Given the information in the inquiry;
Test size n = 500
x = 361
p₀ = 77% = 0.77
q₀ = 1 - p₀ = 1 - 0.77 = 0.23
p = x/n = 361/500 = 0.722
Speculation;
Null hypothesis H₀ : p ≥ 77% or 0.77
Alternative hypothesis Hₐ : p ≥ 77% or 0.77
Test Measurement
z = ( p - p₀ )/√( ( p₀ × q₀ )/n )
so we substitute
z = ( 0.722 - 0.77 )/√( ( 0.77 × 0.23 )/500 )
z = - 0.048/√( 0.1771/500 )
z = - 0.048/√0.0003542
z = - 0.048/0.01882
z = - 2.55
so our p-worth will be;
p-value = p( z < - 2.55 ) {from table }
p-value = 0.0054
at 0.05 degree of importance ∝
p-value ( 0.0054 ) is not as much as importance level ∝ ( 0.05 )
Accordingly we Reject Null hypothesis H₀
Thus, there is sufficient proof to presume that under 77% of messages are spam.
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in a certain company 120 of the employees are men. what is the total number of employees if 5 out of every 8 employees are men?
Answer:
There are 192 employees in the company.
Step-by-step explanation:
Let x be the total number of employees
Use ratio and proportion
\(\frac{120}{x} =\frac{5}{8} \\5x = 120(8)\\5x = 960\\\frac{5x}{5} = \frac{960}{5} \\x = 192\)
x = 192
Exercise b: in this figure m 3=110 m 10=95 find the measure of each angle
Greetings from Brasil...
Here we will use our knowledge of parallel lines....
→ Angles opposite the vertices are equal, so
1 = 6
2 = 5
3 = 8
4 = 7
9 = 14
10 = 13
11 = 16
12 = 15
→ Corresponding angles are equal, so
1 = 9
2 = 10
3 = 11
4 = 12
Given the information above we can write:
1 = 6 = 9 = 14
2 = 5 = 10 = 13
3 = 8 = 11 = 16
4 = 7 = 12 = 15
from the statement of the question it is said that: 3 = 110° and 10 = 95°, so
2 = 5 = 10 = 13 = 95°
3 = 8 = 11 = 16 = 110°
→ from internal/external collateral angles OR supplementary angles:
1 + 2 = 180°
1 + 95° = 180°
1 = 180° - 95°
1 = 85°
3 + 4 = 180°
110° + 4 = 180°
4 = 180° - 110°
4 = 70°
Now we can say that:
1 = 6 = 9 = 14 = 85°2 = 5 = 10 = 13 = 95°3 = 8 = 11 = 16 = 110°4 = 7 = 12 = 15 = 70°I need answers to Percent Change & Percent Error for 7th-grade math, please
Answ160
Step-by-step explanation:
For each problem, find the equation of the line tangent to the function at the given point. Your answer should be in slope-intercept form.
the equation of the line tangent to the function at (3, 6) is y = 11x - 21.
1. f(x) = x^2 + 5x - 6, at (3, 6)
Answer: y = 8x - 21
f'(x) = 2x + 5
f'(3) = 2(3) + 5 = 11
The equation of the line tangent to the function at (3, 6) is y = 11x - b.
Substitute 6 for y and 3 for x to get 6 = 11(3) - b
Solve for b to get b = 21
Therefore, the equation of the line tangent to the function at (3, 6) is y = 11x - 21.
The equation of the line tangent to the function at (3, 6) is y = 8x - 21. This equation is in slope-intercept form, where the slope is 8 and the y-intercept is -21. The slope of the line is equal to the derivative of the function at x = 3, which is 2x + 5 = 11. Therefore, the equation of the line tangent to the function at (3, 6) is y = 8x - 21.
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write an equation of the line that passes through the given point with the given slope. (-1,4) m=-3
Answer:
y - 4 = -3(x + 1)
Step-by-step explanation:
Let's use the point-slope formula y - k = m(x - h):
y - 4 = -3(x + 1)
In a recent survey, 60% of those surveyed indicated that they preferred walking to running.
a. If 540 people preferred walking, how many people were surveyed?
b. How many people preferred running?
Got this answer from another Brainly user:
To solve this problem, let's set up a proportion.
60% = 6/10
Let x represent the total amount of people surveyed (or what we are trying to find)
6/10 = 540/x
To solve this proportion, let's use cross products, or the multiplication of the numerator of one fraction times the denominator of the other fraction and setting them equal to one another.
10(540) = x(6)
Now, let's simplify the resulting equation.
5400 = 6x
Now, let's divide both sides by 6, or the coefficient of x, to get it alone on the right side of the equation.
x= 900
Therefore, if 540 people preferred walking, then 900 people were surveyed.
And I'm guessing that 40% preferred running
I need help on math plz no bots
From population of size 500. random sample of 50 items is selected. The mode of the sample
a. can be larger. smaller Or equal to the mode of the population:
b. must be equal to the mode of population; if the sample is truly random;
c. must be equal to the mean of the population, if the sample is truly random:
d. must be 500
The correct statement regarding the mode of the sample is given as follows:
a. can be larger, smaller or equal to the mode of the population.
What is the mode of a data-set?The mode of a data-set is the observation that appears the most often in the data-set.
The mode of the sample is simply the most frequently occurring value in the sample. It is not necessarily expected to be the same as the mode of the population, which is the most frequently occurring value in the entire population.
As a sample is a group taken from an entire population, the observation that appears the most in the sample can be different from the more common observation in the population,
Hence, option (a) is correct.
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what region R in the xy-plane minimizes the value of ! r (x^2 y^2 − 9) dA ?
To minimize our double integral, we want to find the region over which the function we are integrating has negative values
x^2 +y^2 − 9</= 0
Solving the inequality
x^2 +y^2 </= 9
We can verify this solution by graphing. f(x,y) = x^2 +y^2 − 9
Our function is a paraboloid. Only the negative values of f(x, y) are graphed here.
We can see that f(x, y) is negative below the circle in the x-y plane given by the formula x^2 + y^2 <= 9. If we were to include any points outside of this region in our integral, we would add positive values of f(x, y) to our double integral and the integral wouldn't be minimized
therefore, R : x^2 +y^2 </= 9
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You have 59 total coins for a total of $12.05. You have only quarters and dimes. How many of each coin do you have?
Answer:
Quantity:: d + q = 59 coins
Value:: 10d+25q = 1205 cents
Step-by-step explanation:
Choose the graph that represents the following set.
the whole numbers greater than 3
Answer:
The last graph or
Graph C
Step-by-step explanation:
BRAINLIEST ASAP!!!!!!!!!! Please someone help
What is the coordinate of B' after a reflection across the given line?
Answer:
the coordinates of the B after reflection....
(6,5)
(4x+5)(4x−5)
I'm stuck can someone please help me
Answer:6small2−25
Step-by-step explanation:
Answer:
16x² - 25
Step-by-step explanation:
(4x+5)(4x−5)
16x² - 20x + 20x - 25
16x² - 25
Tres maquinas (A,B,C) producen el 40 % , 35% y 25 % respectivamente , del total de las piezas manufacturadas en una fabrica .Los porcentajes de produccion defectuosa de estas maquinas son del 3% 4 % y 5 % respectivamente
Answer:
La probabilidad de que la pieza elegida sea defectuosa, P(D), 0.0385
La máquina con mayor probabilidad de haber producido la pieza defectuosa es A
Step-by-step explanation:
Sea D= "la pieza es defectuosa" y N= "la pieza no es defectuosa". La información del problema puede expresarse en el diagrama de árbol adjunto.
Para calcular la probabilidad de que la pieza elegida sea defectuosa, P(D), por la propiedad de la probabilidad total,
P(D) = P(A) · P(D/A) + P(B) · P(D/B) + P(C) · P(D/C) =
= 0.40 · 0.03 + 0.35 · 0.04 + 0.25 · 0.05 = 0.0385
Debemos calcular P(B/D). Por el teorema de Bayes,
P(B/D)= P(B) x P(D/B) / P(A) x P(D/A) + P(B) x P(D/B) +P(C) x P(D/C)
= 0.35 · 0.04 / 0.40 · 0.03 + 0.35 · 0.04 + 0.25 · 0.05
Calculamos P(A/D) y P(C/D), comparándolas con el valor de P(B/D) ya calculado. Aplicando el teorema de Bayes, obtenemos:
0.012
0.0385
P(A/D)= 0.311
0.014
0.0385
P(B(D)=0.363
0.0125
0.0385
P(C/D)=0.324
La máquina con mayor probabilidad de haber producido la pieza defectuosa es A
In an arithmetic sequence, the first term, a_1,a
1
, is equal to 2,2, and the fifth term, a_{5},a
5
, is equal to 38.38. Which number represents the common difference of the arithmetic sequence?
Therefore, the common difference of the arithmetic sequence is 9.
To find the common difference of an arithmetic sequence, we can use the formula:
a_n = a_1 + (n - 1) * d,
where:
a_n is the nth term of the sequence,
a_1 is the first term of the sequence,
n is the position of the term in the sequence, and
d is the common difference.
Given that a_1 = 2 and a_5 = 38, we can substitute these values into the formula:
a_5 = a_1 + (5 - 1) * d
38 = 2 + 4d
Now we can solve for d:
38 - 2 = 4d
36 = 4d
d = 36 / 4
d = 9
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you guys can do at least 2 sentences or 3
thank you
How do I solve this question?
Answer:
p = \(\frac{3}{2}\) , q = 9
Step-by-step explanation:
4x² + 12x ( factor out 4 from each term )
= 4(x² + 3x)
Using the method of completing the square
add/subtract ( half the coefficient of the x- term)² to x² + 3x
= 4(x² + 2(\(\frac{3}{2}\) )x + \(\frac{9}{4}\) - \(\frac{9}{4}\) )
= 4(x + \(\frac{3}{2}\) )² - 4 × \(\frac{9}{4}\)
= 4(x + \(\frac{3}{2}\) )² - 9
2 of 10
x
Colin buys a car for £27900.
It depreciates at a rate of 3% per year.
How much will it be worth in 2 years?
Give your answer to the nearest penny where appropriate.
Answer:
Below
Step-by-step explanation:
3% loss means 97% (.97 in decimal ) remains
after 2 years :
27 900 ( .97)^2 = £ 26251 .11
Which expression is equivalent to Start root80 ?
O ^4start root2end root•√5
0 start root2^4•start root5
0 start root2end root•start root2end root•start root5end root
0 start root2^2end root•start root2^2end root•start root5^2end root
Answer:
I believe your answer is C
Hope this helps!
Answer:
It's B
Step-by-step explanation:
the concept of hedonistic calculus is associated with
The concept of hedonistic calculus is associated with utilitarianism and the philosophy of maximizing pleasure and minimizing pain. It is a method for calculating the overall happiness or utility of actions based on the intensity, duration, certainty, propinquity, fecundity, purity, and extent of pleasure or pain they produce.
Hedonistic calculus is a term coined by the philosopher Jeremy Bentham, who was a proponent of utilitarianism. Utilitarianism is an ethical theory that states that the right action is the one that maximizes overall happiness or utility for the greatest number of people. The goal of hedonistic calculus is to measure and compare the happiness or pleasure derived from different actions or situations.
According to Bentham, pleasure and pain are the only relevant factors in determining the moral value of an action. Hedonistic calculus involves quantifying these pleasures and pains in order to assess their overall impact. Bentham proposed seven criteria to evaluate the intensity, duration, certainty, propinquity (nearness in time), fecundity (likelihood of leading to more pleasure or pain), purity (absence of pain mixed with pleasure), and extent of the pleasure or pain produced by an action.
By assigning values to each of these criteria, hedonistic calculus aims to determine the net amount of happiness or utility generated by a particular action or decision. The idea is to maximize pleasure and minimize pain, with the ultimate goal of promoting the greatest happiness for the greatest number of individuals.
Overall, hedonistic calculus provides a systematic approach to assess and compare the consequences of actions based on their impact on pleasure and pain. It serves as a framework for utilitarians to make ethical judgments and decisions by considering the net balance of happiness produced by different choices.
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If you were to eat 1/3 of a roll of Smarties every ¼ of an hour, how long would it take you to eat 10 rolls? Justify your answer.
The time taken to eat 10 rolls is 7.58 hours.
How to illustrate the information?The person is to eat 1/3 of a roll of Smarties every 0.25 hour.
Let the number of hours to eat 10 roll be x.
This will be illustrated thus:
1/3 / 10 = 0.25 / x
Cross multiply
0.33x = 10 × 0.25
0.33x = 2.5
Divide
x = 2.5 / 0.33
x = 7.58 hours.
The method that was used in this case is the calculation for fractions.
This represents the time taken.
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A cylindrical barrel has a radius of 5.7 ft and a height of 8.4 ft. Tripling which dimension(s) will triple the volume of the barrel?
Answer:
tripling the height (8.4 ft) will triple the volume of the barrel (from 857.39 to 2,572.17)
Step-by-step explanation:
By Tripling the height we can triple the volume of the barrel.
What is the volume of a cylinder?In geometry, a cylinder's volume is referred to as its capacity, which aids in determining how much material it can carry.
Given, A cylindrical barrel has a radius of 5.7 ft and a height of 8.4 ft.
From the general formula of volume of cylinder = πr²*h
The volume of the given cylinder = π * (5.7)² 8.4
The volume of the given cylinder = 856.95 ft³
As we can see that the volume of a cylinder is directly proportional to its height of the cylinder.
Therefore, The barrel's volume can be tripled by tripling the height.
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Solve for z…. Z - 1/5=7/10