The answer is NO REAL SOLUTION.
How to find all real solutions to the equation?The given equation is:
5 + 243 = 0
This equation simplifies to:
248 = 0
This is a contradiction, as no value of the variable x can satisfy this equation. Therefore, there are no real solutions to this equation.
Hence, the answer is NO REAL SOLUTION.
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Suppose a normal distribution has a mean of 98 and a standard deviation of
6. What is P(x292)?
O A. 0.16
B. 0.475
C. 0.84
D. 0.975
The z-score of the value P ( x < 92 ) is given by z = -1 with standard deviation of 6 is P ( x < 92 ) = 0.16
What is a z-score?The relationship between a value and the mean of a set of values is expressed numerically by a Z-score. The Z-score is computed using the standard deviations from the mean. A Z-score of zero indicates that the data point's score and the mean score are identical.
The Z-score is calculated using the formula:
z = (x - μ)/σ
where z: standard score
x: observed value
μ: mean of the sample
σ: standard deviation of the sample
Given data ,
Let the distribution be a normal distribution where
The mean of the data is μ = 98
The standard deviation is σ = 6
Now , the Z-score is determined by z = (x - μ)/σ
On simplifying , we get
when x = 92
P ( x < 92 ) is
z = ( 92 - 96 ) / 6
z = -1
So , the p value of P ( x < 92 ) is 0.1587
On rounding to the nearest value , we get
P ( x < 92 ) = 0.16
Hence , the z-score is solved
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In a Cartesian coordinate system for a three-dimensional space.
Sphere (S) is represented by equation: \((x-1)^2+(y+2)^2+(z-3)^2=25\).
Plane (P) is represented by equation: \(x+2y-2z+1=0\).
Line (d) is parallel to (P), passes through the origin and passes through (S) at two separate points A & B. Find the maximum length of AB.
In a Cartesian coordinate system for a three-dimensional space, let the sphere S be represented by the equation:
(x - a)^2 + (y - b)^2 + (z - c)^2 = r^2
where (a, b, c) are the coordinates of the center of the sphere, and r is the radius.
Let the plane P be represented by the equation:
Ax + By + Cz + D = 0
where (A, B, C) is the normal vector to the plane.
Since the line d is parallel to P and passes through the origin, it can be represented by the equation:
lx + my + nz = 0
where (l, m, n) is a vector parallel to the plane P.
To find the intersection points of the sphere S and the line d, we can substitute the equation of the line into the equation of the sphere, which gives us a quadratic equation in t:
(lt - a)^2 + (mt - b)^2 + (nt - c)^2 = r^2
Expanding this equation and collecting terms, we get:
(l^2 + m^2 + n^2) t^2 - 2(al + bm + cn) t + (a^2 + b^2 + c^2 - r^2) = 0
Since the line d passes through the origin, we have:
l(0 - a) + m(0 - b) + n(0 - c) = 0
which simplifies to:
al + bm + cn = 0
Therefore, the quadratic equation reduces to:
(l^2 + m^2 + n^2) t^2 + (a^2 + b^2 + c^2 - r^2) = 0
This equation has two solutions for t, which correspond to the two intersection points of the line d and the sphere S:
t1 = -(a^2 + b^2 + c^2 - r^2) / (l^2 + m^2 + n^2)
t2 = -t1
The coordinates of the intersection points can be obtained by substituting these values of t into the equation of the line d:
A = lt1, B = mt1, C = nt1
and
D = lt2, E = mt2, F = nt2
To find the distance between A and B, we can use the distance formula:
AB = sqrt((A - D)^2 + (B - E)^2 + (C - F)^2)
To maximize this distance, we can differentiate the distance formula with respect to t1 and set the derivative equal to zero:
d/dt1 (AB)^2 = 2(A - D)l + 2(B - E)m + 2(C - F)n = 0
This equation represents the condition that the direction vector (A - D, B - E, C - F) is orthogonal to the line d. Therefore, the vector (A - D, B - E, C - F) is parallel to the normal vector (l, m, n) of the plane P.
Using this condition, we can find the values of t1 and t2 that correspond to the maximum distance AB. Then we can substitute these values into the distance formula to find the maximum length of AB.
how many zeros in a million
Answer:
There are 6 zeros in one million.
Step-by-step explanation:
1000000 (one million)
6 zeros
An hour before show time, only 342 people are seated for a rock fest. According to ticket sales, 91% of the people have yet to arrive. How many tickets were sold for the rock fest? Explain your thinking.
Answer:
3800
Step-by-step explanation:
342 is the 9 percent that have shown up. If you divide that by nine you would get on percent of the total which comes out to be 38. so you multiply 38 by 100 and get 3800 which is 100% of the tickets sold.
A coat costs $47. George has enough money to pay the exact price without using coins. If George has just one $20 bill and no $2 bills, what is the smallest total number of bills he could have?
Answer:
The smallest number of bills he could have is 5 bills.
Step-by-step explanation:
He could have two 20's, one 5, and two 1's. 20+20+5+1+1=47
Hope this helped :)
Answer:
5 bills.
Step-by-step explanation:
Smallest number of bills he can have is 5.
$20+$20+$5+$1+$1=$47
What expression
can be used to add 1/2 + 5/6
Answer:
(4/3)
Step-by-step explanation:
1 5
--------- + --------
2 6
1 (3) 5
--------- + --------
2(3) 6
3 5 8
------- + ------- = -------
6 6 6
8 ÷ 2 4
------- = -------
6 ÷ 2 3
I hope this helps!
determina el dominio y el rango de las funciones representadas en cada grafica
Find 95% confidence interval for the average number of sick days an employee will take per year, given the employee is 47 .
For sample of employee’s age and the number of sick days the employee takes per year, the 95% confidence interval for the average number of sick days an employee will take per year, the 47 employee is equals to the (0.81, 6.81).
The estimated regression line for model of number of sick days the employee takes per year days is Sick Days = 14.310162 − 0.2369(Age)
Prediction for avg no. of sick days for employee aged 47, \(\bar X = 14.310162 - 0.2369 × Age\)
= 14.310162 - 0.2369 × 47
= 3.175862 = 3
Sample size, n = 10
Sample error, SE = 1.682207
So, standard deviations, s =
\(SE× \sqrt{n} = 1.682207 × \sqrt{10}\) = 5.31960
Number of degree of freedom, df = 10 - 1 = 9
Level of significance, α = 0.05 and α/2 = 0.025
Based on the provided information, the critical value for α = 0.05 and df = 9 ( degree of freedom) is equals to the 2.262. Now, the 95% confidence interval is written as, \(CI = \bar X ± \frac{ t_c × s}{\sqrt{n}}\).
Substitutes all known values in above formula, \(CI = 3 ± \frac{ 2.262 × 5.31960}{\sqrt{10}}\)
= 3 ± 3.805152234
=> CI = (0.81, 6.81)
Hence, required confidence interval is (0.81, 6.81).
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Complete question:
The above figure complete the question.
The personnel director of a large hospital is interested in determining the relationship (if any) between an employee’s age and the number of sick days the employee takes per year. The director randomly selects ten employees and records their age and the number of sick days which they took in the previous year. The estimated regression line and the standard error are given.
Sick Days=14.310162−0.2369(Age)
se = 1.682207
Find the 95% confidence interval for the average number of sick days an employee will take per year, given the employee is 47. Round your answer to two decimal places
What is 11/12 of a minute?
Answer:
55 seconds
Step-by-step explanation:
Okay so, 1/12 of a minute would be 5 seconds. 10/12 would be 50 seconds. You go up 5 continuously.
A survey was conducted of 250 pediatricians on the average age of their patients. A sample mean of 8. 3 years was determined, with a standard deviation of 1. 8 years. Assuming a 90% confidence level, which of the following statements holds true? A. As the sample size is too small, the margin of error cannot be trusted. B. As the sample size is too small, the margin of error is ±1. 29. C. As the sample size is appropriately large, the margin of error is ±0. 187. D. As the sample size is appropriately large, the margin of error is ±0. 14.
9. The scatterplot shows the value of a stock that Leslie bought
Based on the scatterplot, about how much will the stock be worth at 6 months?
A. $30
B. $40
C. $50
D. $60
Mariana is starting a business selling handmade necklaces. She has decided to invest an initial amount of $78 for advertising, and materials cost $6 for each necklace she makes. Mariana can sell her creations for $9 per necklace. Once she makes and sells a certain number of necklaces, she will break even, with identical expenses and sales. What would the total expenses and sales be then? How many necklaces would that take?
The total expenses and sales at this point is $234
When she breaks even, the number of necklaces is 26
What would the total expenses and sales be?From the question, we have the following parameters that can be used in our computation:
Initial amount for advertising and materials = $78
Necklace = $6
Selling price = $9
Represent the total expense with f(x) and the total sales with g(x)
Where the number of necklace is x
So, we have the following representation
f(x) = 78 + 6x
g(x) = 9x
When she breaks even, we have
f(x) = g(x)
Substitute the known values in the above equation, so, we have the following representation
9x = 78 + 6x
This gives
3x = 78
Divide
x = 26
Substitute x = 26 in g(x) = 9x
g(x) = 9 * 26
Evaluate
g(x) = 234
How many necklaces would that take?In (a), we have
x = 26
This means that the number of necklaces is 26
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Does anyone know the awnser pls tell me
Using pythagoras' theorem in the right angled triangle, x = 2√10 in simplest radical form
What is a right angled triangle?A right angled triangle is a triangle in which one of the angles is 90 degrees.
To find the value of x in the figure, we proceed as follows
First we notice that the top right angled triangle has its hypotenuse side as the side length of the rectnagle.
So, using Pythagoras' theorem, we find the side length, L of the rectangle.
By Pythagoras' theorem L = √(4² + 2²)
= √(16 + 4)
= √20
= 2√5
Now in the rectangle, he diagonal of length 10 units divides the rectangle into two right angled triangles of sides L and x
So, by Pythagoras' theorem 10² = L² + x²
So, making x subject of the formula, we have that
x = √(10² - L²)
= √(10² - (√20)²)
= √(100 - 20)
= √80
= √(10 × 4)
= √10 × √4
= 2√10
So, the value of x = 2√10
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he area of a rectangle is 63 yd^2, and the length of the rectangle is more than twice the width. Find the dimensions of the rectangle.
The rectangle's dimensions are 9 yards in width and 14 yards in length.
Let's assume the width of the rectangle is "x" yards. According to the given information, the length of the rectangle is more than twice the width. Thus, the length can be expressed as 2x + y, where y represents the additional length.
The area of a rectangle is calculated by multiplying its length and width. In this case, we have the equation: (2x + y) * x = 63 yd².
Expanding the equation, we get: 2x² + xy = 63.
Since we know the area is 63 yd², we can find two factors that multiply to give 63 and solve for x. The factors of 63 are 1 and 63, 3 and 21, and 7 and 9. Since the length is more than twice the width, the factor pair that satisfies this condition is 7 and 9.
Therefore, x = 7 and 2x + y = 9. Solving for y, we find that y = 2.
Thus, the dimensions of the rectangle are 7 yards in width and 9 yards in length.
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How do you translate an entire triangle?
To translate an entire triangle, find the coordinates of each of the triangle's vertices, add the horizontal translation then plot the three translated points
Whenever an object is moved from one location to the next without changing its size, shape, or orientation, a translation takes place. If we know which way and how far the figure to be moved, we can draw the translation in the coordinate plane.
There are some steps of translating the triangle:
Step 1: Find the coordinates of each of the triangle's vertices in step one.
Step 2: Add the horizontal translation value to each vertex's x-coordinate and the vertical translation value to each point's y-coordinate to translate each point. If the horizontal translation is to the left or the vertical translation is downward for these translations, add a negative number.
Step 3: Plot the three translated points and draw the triangle by drawing a straight line between each pair of points.
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Graph the sine function on the interval [0, 2pi] . The lowest point on the graph occurs at (____,-1 ).
The lowest point on the graph occurs at point (3π/2, -1)
What is sine function graph?One of the three fundamental functions in trigonometry, along with cosine and tan functions, is the sine function.
The ratio of the opposite side of a right triangle to its hypotenuse is known as the sine x or sine theta.
The sine function graph is sinusoidal in nature. This is a sim=ne wave that have smooth periodic oscillation
The attached graph shows sine function graph plotted with the interval [0, 2pi]
The lowest point is observed to occur at (3π/2, -1)
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g a pharmaceutical company receives large shipments of ibuprofen tablets and uses an acceptance sampling plan. this plan randomly selects and tests 29 tablets, then accepts the whole batch if there is at most one that doesn't meet the required specifications. what is the probability that this whole shipment will be accepted if a particular shipment of thousands of ibuprofen tablets actually has a 4% rate of defects? (report answer as a decimal value accurate to four decimal places.)
The probability that this whole shipment will be accepted if a particular shipment of thousands of ibuprofen tablets actually has a 4% rate of defects is 0.9660
This problem can be solved by permutations and combinations. This can also be solved using binomial probability experiment.
Let, then we could reasonably assume that follows a binomial distribution.
Given P = 0.01 and n = 29
P(x) = nCx.px.(1-p)^(n-x)
nCx = n! [x!-(n-x)!]
P = P(X<=1).
X<=1, if X = 0 and X = 1,
P(0) + P(1)
P(0) = 1.(0.01)^(0).(0.99)^(29) = 0.74717
P(1) = 29C1.(0.01)^(1).(1-0.01)^(29-1)
P(1) = 0.21887
P = P(0) + P(1)
P = 0.74717+0.21887 = 0.9660
So, therefore the probability that this whole shipment will be accepted if a particular shipment of thousands of ibuprofen tablets actually has a 4% rate of defects is 0.9660
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7. Express the vector u
= ⎝
⎛
1
2
−1
0
3
⎠
⎞
as a linear combination of the vectors v 1
= ⎝
⎛
1
1
1
1
1
⎠
⎞
, v 2
= ⎝
⎛
0
1
0
1
0
⎠
⎞
v 3
= ⎝
⎛
1
0
1
0
1
⎠
⎞
or prove that such an expression is impossible.
It is possible to express the vector u as a linear combination of the vectors v₁, v₂, and v₃. The coefficients for the linear combination are 4, -1, and 3, respectively.
To express the vector u as a linear combination of v₁, v₂, and v₃, we need to find coefficients (a, b, c) such that u = a*v₁ + b*v₂ + c*v₃. Let's solve this system of equations:
12 = a + b + c (Equation 1)
-10 = a + c (Equation 2)
3 = a + b + c (Equation 3)
We can solve this system of equations by eliminating variables. Subtracting Equation 2 from Equation 1, we get:
12 - (-10) = a + b + c - (a + c)
22 = b
Substituting this value of b into Equation 1, we have:
12 = a + 22 + c
-10 = a + c
Solving this new system of equations, we find:
a = -7
c = -3
Finally, substituting these values back into Equation 1, we can find b:
12 = -7 + b - 3
22 = b
Therefore, the coefficients for the linear combination are a = -7, b = 22, and c = -3. Hence, we can express the vector u as a linear combination of v₁, v₂, and v₃ as follows:
u = -7*v₁ + 22*v₂ - 3*v₃
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help...me...plz..!!.....?
Answer:
\(\huge\boxed{-1}\)
Step-by-step explanation:
\(\frac{-5^2}{(-5)^2}\)
=> \(\frac{-25}{25}\)
=> -1
Answer:
-1
Step-by-step explanation:
-5^2 is -25 because you have to do exponents first, so 5^2 is 25. Add a negative symbol there, it becomes -25.
For the denominator, we do the exact same process, except a little different. Since there are parentheses around the negative five, we have to apply the negative symbol on the 5 before we do the exponents. After, we do -5^2 which is 25 because when you are multiplying negative, you always get a positive.
When we are all done with that, we put the numerator over the denominator to get -25/25, which is equivalent to -1.
the volume V of any cube with a side length s can be determined using the formula V=s3 what is the volume in cubic centimeters of the cube with a side length of 2.3 centimeters
Answer:
12.167
Step-by-step explanation:
1. 2.3 * 2.3 = 5.29
2. 5.29*2.3 =12.167
What type of number is 3pie plus one
Answer:
it is irrational number
Question 37 1 pts Which of the following is a solution to the differential equation: t². d^2y/dt^2 - 6t dy,dt + 12 = 0
a.y=t² + 1 b.y=t³+2t^4
c.no solution d.y = t-1 Question 38 1 pts Newton's law of cooliing states that the rate of change of the temperature T of an object is proportional to the temperature difference between the temperature S of the surroundings and the temperature T. Write down the differential equation. A cup of tea is prepared from boiling water at 100 degrees and cools to 50 degrees in 3 minutes. The temperature in the room is 20 degrees. What will the tea temperature be after a very long time? a.dT/dt=k(S-T); T≈ 20 degrees after a very long time b.dt/dT =k(ST); T≈ 30 degrees after a very long time c.dt/dT =K(S-T); T≈ 0 degrees after a very long time d.dt/dT = K (S+T); T≈ 30 degrees after a very long time
Question 37: The following is a solution to the differential equation y = t - 1. d.
Question 38: The tea temperature be after a very long time is dT/dt = k(S - T); T ≈ 20 degrees after a very long time. a.
To determine the solution to the given differential equation: t²(d²y/dt²) - 6t(dy/dt) + 12 = 0, we can solve the equation by assuming a solution in the form of y = tⁿ, where n is a constant.
By differentiating y with respect to t, we can substitute the derivatives into the differential equation to determine the value of n.
Let's differentiate y = tⁿ with respect to t:
dy/dt = n × tⁿ⁻¹
d²y/dt² = n(n-1) × tⁿ⁻²
Substituting these derivatives into the differential equation:
t²(n(n-1)tⁿ⁻²) - 6t(ntⁿ⁻¹) + 12 = 0
Simplifying the equation:
n(n-1)tⁿ - 6ntⁿ + 12 = 0
n(n-1)tⁿ - 6ntⁿ = -12
Since this equation must hold for all values of t, the coefficients of the tⁿ terms on both sides of the equation must be equal.
We can equate the coefficients:
n(n-1) = 0
n = 0 or n = 1
The general solution to the differential equation is y = c₁ + c₂ × t, where c₁ and c₂ are constants.
According to Newton's law of cooling, the rate of change of the temperature T of an object is proportional to the temperature difference between the object's temperature T and the surroundings' temperature S.
We can write the differential equation as follows:
dT/dt = k(S - T)
dT/dt represents the rate of change of temperature, k is the proportionality constant, and (S - T) represents the temperature difference between the object and the surroundings.
The cup of tea starts at 100 degrees and cools to 50 degrees in 3 minutes, with the room temperature at 20 degrees.
We can assume that the temperature of the tea will tend toward the room temperature as time goes to infinity.
This option correctly represents that as time goes to infinity, the temperature T of the tea will approach the temperature S of the surroundings, which is approximately 20 degrees.
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xavier writes the expression y+7x2\5 which expression is equivalent to the one xavier writes
Answer:
bhkhbkb bkhjgjvbhbhhhtfdik gfjkbfg
Step-by-step explanation:
In the Venn Diagram for an EIO - 2 Categorical Syllogism, there is an X in number 6.
Group of answer choices
True
False
The answer is True. In the Venn Diagram for an EIO - 2 Categorical Syllogism, X represents the area of the diagram where the subject of the conclusion statement (the term in the predicate of the minor premise) overlaps with the complement of the predicate of the major premise.
In a EIO syllogism, the conclusion statement is negative and particular, meaning that it denies the existence of some members of the subject class. This area of the diagram is represented by number 6. Therefore, there should be an X in number 6 of the Venn Diagram for an EIO - 2 Categorical Syllogism.
In the Venn Diagram for an EIO-2 Categorical Syllogism, there is an X in number 6. The statement is true. An EIO-2 Categorical Syllogism consists of a negative major premise, a negative minor premise, and a negative conclusion. In a Venn Diagram, an "X" represents an instance where the two categories overlap, and number 6 is the area where the two categories overlap negatively. So, in this case, the presence of an X in number 6 indicates the truth of the EIO-2 Categorical Syllogism.
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Definition: An event that is made up of two or more outcomes is called
Example: Rolling a 5 on a die and flipping heads on a coin.
A boutique sold $127.50 worth of purses. How many purses did they sell?
$7.50
Answer:
They sold 17 purses
Step-by-step explanation:
A dolphin swam7 1/2 miles in 3/8 hour. what is its average speed in miles per hour?
Answer:
20 mph
Step-by-step explanation:
To find miles per hour you divide the number of miles by the number of hours
(7 1/2)/(3/8) = (15/2)(8/3) = 20 mph
There were 425 guests at a hotel. 170 guests ordered food. What percentage of the guests ordered food?
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Two pedestrians begin to walk toward each other at dawn, each walking at a constant speed. They meet at noon, and continue along their separate routes. The pedestrian walking from point A to point B reaches point B at 4:00 pm, and the pedestrian walking from point B to point A reaches point A at 9:00 pm. At what time was dawn?
Edit: Please mark brainliest!!!!
Answer:
6:00 am
Heeeeyyyyyy, so i had the same problem from rsm, but like anyways, here it is
Let the distance between