1. Null hypothesis H0: μ ≥ 36
2. Alternative hypothesis H1: μ < 36
3. The claim is μ < 36, which is the alternative hypothesis.
How to find the null and alternative hypotheses and note which is the claim?The following are the null and alternative hypotheses for the claim that the mean life of a certain kind of alkaline battery is no more than 36 months. When conducting a hypothesis test, you would begin with the null hypothesis and then determine whether there is enough evidence to reject it or not.
Null hypothesis:H0: μ ≥ 36
Alternative hypothesis:H1: μ < 36
The claim is μ < 36, which is the alternative hypothesis.
The null hypothesis is μ ≥ 36. Thus, we may conclude that the report implies that the mean life of a certain type of alkaline battery is less than or equal to 36 months.
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196 1/12 minus 13 9/12
Answer:
Hello!
___________________-
196 1/12 - 13 9/12 = 547/3
Step-by-step explanation: Isolate the variable by dividing each side by factors that don't contain the variable.
Hope this helped you!
Answer:
547/3 I think :>
Step-by-step explanation:
Express the following in simplest a + bi form.
root 9+ root -36
A. -9i
B. 3-6i
C. 3+6i
D. 9i
ANSWER C
Answer:
there is no real solution
Step-by-step explanation:
There is no number that, when squared, produces a negative value. A negative multiplied by a negative gives a positive, and a positive times a positive gives a positive. You can however have a ± symbol to indicate that the root of 36 could be either positive or negative
Nina drives 0.9 of a mile to the grocery store and Danielle drives 0.09 of a mile to school. Choose the words that correctly complete the sentence.
Danielle’s drive is _____ than that of Nina’s drive.
The complete sentence is
Danielle’s drive is 10 times less than that of Nina’s drive
DistanceFrom the question, we are complete the given sentence
The given sentence is
Danielle’s drive is _____ than that of Nina’s drive.
That is,
We are to determine how many times less or greater Danielle’s drive is to Nina’s drive
From the given information,
Nina drives 0.9 of a mile to the grocery store
and
Danielle drives 0.09 of a mile to school
First, we will divide 0.9 by 0.09
0.9/0.09 = 10
This means 0.9 is 10 times greater than 0.09
OR
0.09 is 10 times lesser than 0.9
Thus,
Danielle’s drive is 10 times less than that of Nina’s drive
Hence, the complete sentence is
Danielle’s drive is 10 times less than that of Nina’s drive
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Consider the following generic C comparison function and its assembly language representation C code: byte compbyte a,byte b)/a in rdi,b in rsi Assembly code cmpb %rsi,%rdi set_inst %a1 ret Your jobs(fill-in blank):now sh given values of a and b g SET instruction and the A.5 points set CI SF OF %al setg 47 23 B.5 points set h SF OF %a setl 23 47 C.5 points ZA SF OF %al set sete 23 23 D.5 points CF ZF SF OF 00%1 set b setne 23 47
The correct answer is D. setne 23 47. Based on the provided information, I understand that you have a comparison function in C code and its corresponding assembly code. You are asked to fill in the blanks by selecting the appropriate instructions based on the given values of a and b and the status flags SF, OF, ZF, and CF. Let's go through the options:
A. setg 47 23: This option is incorrect because setg is used to set a byte to 1 if the Greater flag (ZF=0 and SF=OF) is set, but the given values of a and b are 47 and 23, respectively, so it does not satisfy the condition for setg to be set.
B. setl 23 47: This option is incorrect because setl is used to set a byte to 1 if the Less flag (SF≠OF) is set, but the given values of a and b are 23 and 47, respectively, so it does not satisfy the condition for setl to be set.
C. sete 23 23: This option is incorrect because sete is used to set a byte to 1 if the Zero flag (ZF=1) is set, but the given values of a and b are 23 and 23, respectively, so it does not satisfy the condition for sete to be set.
D. setne 23 47: This option is correct. setne is used to set a byte to 1 if the Zero flag (ZF=0) is not set, which means the values of a and b are not equal. In this case, the given values of a and b are 23 and 47, respectively, so they are not equal, and setne should be used.
Therefore, the correct answer is D. setne 23 47
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If Jose’s house is at -6,8 Tyrell’s house is at 6,8 the football field is at 6,-5 and Jose went to Tyrell’s house then to the football field how far did Jose travel to football practice
Answer:
25 = units Jose travelled
Jh to Th = x moves 12 across
and y moves 0 is constant (up/down or constant)
Th to FF = x moves 0 stays constant and y moves 13 left
12 + 13 = 25
The purpose of this exercise is concerning parabolas = curve equations
x has two points x = -6 and x = 6
y has two points y = -5 and y = 8
however we cant plot this as ANSWER without using all the coordinates
y has one answer unit at 13 and not shown in an equation if it was the y intercept or curve mid point it would be a straight line and not a curve at 13 we can therefore set y to zero 0 as mid point curve when drawing the curve.
Then to find the each unit change we could prove with straight line upon the parabola by first using the straight line equation formula y-y1 = m(x+x1)
Straight line equation
Plug in Jose's coordinates given in the question.
Therefore y - - 6 = 6 (x + 8 ) = y+6 = 6x + 46 multiply out
= y+6 = 6x + 46 -6 cancel out with -6
= y = 6x+40
the answer therefore becomes y=6x+40
Plug in the same for Tyrell coordinates given in the question.
y - 6 = -6 (x + 8 ) = y-6 = -6x + 46 multiply out
= y-6 = -6x - 46 + 6 cancel out with +6
= y = -6x+52
and is a decrease of 6 i various ways.
Plug in for Football field coordinates given in the question.
y-6 = -6(x -5)
= y -6 = -6x +30
= y = -6x + 30+6
= y = -6x + 36
Shows constant 6 and -6 for m the slope and 46-36 = 10 decrease each side from 0 being the curve mid point on x line. down into the mid curve |
= 10+10 to represent each side = 20 then +5 = 25
As the shift in the curve makes negative positive and positive negative.
= 25 units
suppose that there are on average 16 rats per city block in a small city. if the standard deviation is 4 rats per block, what is the probability a random block has at least one rat?
Given that there are, on average, 16 rats per city block with a standard deviation of 4 rats per block, the probability that a random block has at least one rat can be determined by calculating the complementary probability of having zero rats using the normal distribution.
To calculate the probability of a random block having at least one rat, we can calculate the complementary probability of having zero rats. First, we need to convert the problem into a standard normal distribution by using the formula z = (x - μ) / σ, where x is the value (in this case, zero rats), μ is the mean (16 rats), and σ is the standard deviation (4 rats).
Substituting the values, we have z = (0 - 16) / 4 = -4.
Next, we can find the corresponding cumulative probability associated with a z-score of -4 using the standard normal distribution table or a calculator. The probability of having zero rats is equivalent to the probability of having at least one rat, which is the complement of the probability of having zero rats.
Therefore, the probability of a random block having at least one rat is approximately 1 - P(Z < -4), where P(Z < -4) represents the cumulative probability associated with a z-score of -4. This probability is extremely close to 1, indicating a high likelihood that a random block will have at least one rat.
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Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar(s).
A system of linear equations is given by the tables. One of the tables is represented by the equation y = -x + 7.
y
x
0
3
S
y
51
6
7
8
X
-6
-3
0
The equation that represents the other equation is y =
The solution of the system is (
x+
Reset
Next
The linear equation of the first table is y = 1 / 3 x + 5
The solution to the system of equation is (3, 6)
Since, We know that Point slope equation;
y = mx + b
where
m = slope
b = y-intercept
Therefore, y = - 1 /3 x + 7 is the equation for the second table.
The equation for the first table can be solved using (0, 5)(3, 6) from the table. Therefore,
m = 6 - 5 / 3 - 0
m = 1 / 3
let's find b using (0, 5)
5 = 1 / 3(0) + b
b = 5
Therefore, the equation of the first table is as follows:
y = 1 / 3 x + 5
The solution to the system of equation can be calculated as follows:
y + 1 /3 x = 7
y - 1 / 3 x = 5
2y = 12
y = 12 / 2
y = 6
6 - 1 / 3 x = 5
- 1 / 3 x = 5 - 6
- 1 / 3 x = - 1
x = 3
Therefore, the solution to the system of equation is (3, 6)
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How do I do this? How do I get from figure F to figure onto figure G?
Answer:
The answer would be to flip figure F across the y axis then across the x axis. It would then lie on figure G.
Step-by-step explanation:
Choose... states a rule using variables.
Hurry Please
A rule using variables is a mathematical function that relates one quantity to another.
The variables in the rule can be manipulated to find the value of one quantity when given the value of the other.
For example, the rule y = 3x + 2 relates the variable y to the variable x, and can be used to find the value of y when given a value of x.
Another example of a rule using variables is the Pythagorean theorem, which states that a² + b² = c², where a, b, and c are the sides of a right triangle.
This rule can be used to find the length of any side of a right triangle when given the lengths of the other two sides.
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a new table needs to be added to the sports physical therapy database to track which sports the patients are playing. this data will be used to analyze the results of the therapies. assuming that many patients play multiple sports, how would you design the table?
To design the table, you could create a "Sports" table and a "Patient-Sport" table with the following fields:
Sports table: Patient-Sport table:
SportID (primary key) PatientID (foreign key)
SportName SportID (foreign key)
What do you mean by database?A database is a collection of organized data stored and retrieved electronically. It is designed to allow efficient storage, retrieval, manipulation, and management of large amounts of data. Databases can be used to store information such as text, numbers, images, and other media. The data in a database is typically organized into tables, which are made up of rows and columns. Each row represents a single record, and each column represents a field of information within that record. There are many different types of databases, including relational databases, NoSQL databases, and in-memory databases, and they are used in a wide range of applications, such as online retail, finance, healthcare, and more.
The Patient-Sport table is used to connect the patient to the sport they are playing. This allows for multiple sports to be assigned to a single patient. In this way, you can track the sports played by each patient, while still maintaining the relationships between the patient and their data in the other tables.
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12 120° 3 3 Fig. 12.51 Calculate the area of the shaded segment in Fig. 12.51. (Leave your answer in terms of .) [JAMB]
Answer:
\(\text {The \ area \ of \ the \ shaded \ segment, A} = 3 \cdot \pi - \dfrac{9}{4} \cdot \sqrt{3}\)
Step-by-step explanation:
The details of the circle that has the shaded segment, and the segment are;
The radius of the circle, r = 3
The angle of the arc of the segment, θ = 120°
The area of a segment, A, is given as follows;
\(A = \dfrac{\theta}{360^{\circ}} \times \pi \times r^2 - \dfrac{1}{2} \times r^2 \times sin(\theta)\)
The area of the given segment is therefore;
\(A = \dfrac{120^{\circ}}{360^{\circ}} \times \pi \times 3^2 - \dfrac{1}{2} \times 3^2 \times sin(120^{\circ}) = \dfrac{12\cdot \pi-9\cdot \sqrt{3} }{4} = 3\cdot \pi - (9/4)\cdot \sqrt{3}\)
f(x) = x2 − x − ln(x)
(a) Find the interval on which f is increasing. (Enter your answer using interval notation.)
Find the interval on which f is decreasing. (Enter your answer using interval notation.)
(b) Find the local minimum and maximum value of f.
(c) Find the inflection point.
(a) The interval on which f is increasing: (0, ∞)
The interval on which f is decreasing: (0, 1)
(b) Local minimum: At x = 1, f(x) has a local minimum value of -1.
There is no local maximum value.
(c) Inflection point: At x ≈ 0.293, f(x) has an inflection point.
The function f(x) = x^2 - x - ln(x) is a quadratic function combined with a logarithmic function.
To find the interval on which f is increasing, we need to determine where the derivative of f(x) is positive. Taking the derivative of f(x), we get f'(x) = 2x - 1 - 1/x. Setting f'(x) > 0, we solve the inequality 2x - 1 - 1/x > 0. Simplifying it further, we obtain x > 1. Therefore, the interval on which f is increasing is (0, ∞).
To find the interval on which f is decreasing, we need to determine where the derivative of f(x) is negative. Solving the inequality 2x - 1 - 1/x < 0, we get 0 < x < 1. Thus, the interval on which f is decreasing is (0, 1).
The local minimum is found by locating the critical point where f'(x) changes from negative to positive. In this case, it occurs at x = 1. Evaluating f(1), we find that the local minimum value is -1.
There is no local maximum in this function since the derivative does not change from positive to negative.
The inflection point is the point where the concavity of the function changes. To find it, we need to determine where the second derivative of f(x) changes sign. Taking the second derivative, we get f''(x) = 2 + 1/x^2. Setting f''(x) = 0, we find x = 0. Taking the sign of f''(x) for values less than and greater than x = 0, we observe that the concavity changes at x ≈ 0.293. Therefore, this is the inflection point of the function.
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An architect planned to construct two similar stone pyramid structures in a park. The
figure below shows the front view of the pyramids in her plan, but there is an error in
the dimensions:
Which of the following changes should she make to the length of side AB to correct
her error? (6 points)
1) Change the length of side AB to 2 feet
2) Change the length of side AB to 8 feet
3) Change the length of side AB to 1 foot
4) Change the length of side AB to 4 feet
Answer:
1) Change the length of side AB to 2 feet
Step-by-step explanation:
Given that both structures are similar, it follows that the ratio of their corresponding lengths are equal.
To find out what should be the correct length of AB that she should change to, set up the proportion showing the ratio of 2 corresponding lengths of both structures. Thus:
\( \frac{PR}{AC} = \frac{PQ}{AB} \)
We will assume AB is unknown.
PR = 7.5 ft
AC = 2.5 ft
PQ = 6 ft
Plug in the values into the equation
\( \frac{7.5}{2.5} = \frac{6}{AB} \)
Cross multiply
\( AB*7.5 = 6*2.5 \)
\( AB*7.5 = 15 \)
Divide both sides by 7.5
\( AB = 2 \)
The architect should change the length of AB to 2 ft
Anyone help on this problem will be much appreciated! The population of a culture of the bacterium Pseudomonas aeruginosa is given by p(t) = -1698t^2 + 85,000t + 10,000 where t is the time in hours since the culture was started.
a. The time at which the population is at a maximum is 25 hours. b. The maximum population is 1,182,500.
What is quadratic function?A polynomial function of degree 2 is a quadratic function, while one of degree 1 is a linear function. The formula for a quadratic function is f(x) = ax² + bx + c, where a, b, and c are constants and an is not equal to 0. A parabola, a U-shaped curve, is the graph of a quadratic function. Depending on the sign of the leading coefficient, the function's minimum or maximum value is located at the parabola's vertex.
a) The highest value of the population function, which is a quadratic function with a negative leading coefficient, occurs near the parabola's vertex.
Thus, t = -b/2a.
Substituting the values a = -1698, b = 85,000, and c = 10,000 we have:
t = -85000 / 2(-1698) = 25
Therefore, the time at which the population is at a maximum is 25 hours.
b) To determine the maximum population we substitute the value of t = 25.
p(25) = -1698(25)² + 85,000(25) + 10,000 = 1,182,500
Therefore, the maximum population is 1,182,500.
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Which equation is graphed? y = one-half cosine (2 x) minus 1 y = one-half sine (4 x) minus 1 y = one-half cosine (2 x) + 1
Answer:
The equation that is graphed is y = one-half cosine (2 x) minus 1.
What is 115 lbs in kg?
Answer:
115 lbs = 52.16 kilograms
Step-by-step explanation:
115 pounds is a little over 52kg
Determine the slope of
the line between each
pair of points.
1. (0, 10) and (3, 12)
Answer:
(1.5, 11)
Step-by-step explanation:
In a softball league, the male to female ratio is 5:6. If there are 165 members in the league, how many females are in the league?
Answer:
197.1
Step-by-step explanation:
a^2 - b^2
simply if a=6 and b = -3
Answer: 27
Step-by-step explanation:
a^2 - b^2
6^2 - (-3^2)
36 - (9)
36 - 9= 27
0.003/19.43 what is the answer
Answer:
0.000154
Step-by-step explanation:
Your company wants to purchase some equipment for recycling metals. Machine A costs $323,000 and has a useful life of 10 years. Its operating costs are $2.40 per ton of metal processed. Machine B costs $178,000 and has a useful life of 6 years. Its operating costs are $8.00 per ton of metal processed. How many tons of metal per year must your company process to favor Machine A over Machine B? Assume an MARR of 18% per year.
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To determine the number of tons of metal per year needed for Machine A to be favored over Machine B, we compare their costs. Machine A costs $323,000 with an annual operating cost of $2.40/ton, while Machine B costs $178,000 with an annual operating cost of $8.00/ton. The machines have useful lives of 10 years and 6 years, respectively, and the minimum attractive rate of return (MARR) is 18% per year.
By calculating the equivalent annual costs (EAC) for each machine using the given formula and comparing them, we can determine the point at which Machine A becomes more favorable. However, specific values for the discounting factors and the tons per year needed are missing, making it impossible to provide an exact answer.
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using the clausius‐clapeyron equation determine what variables related to the measured values would be graphed on the x and y axes, along with what m and b would represent.
In the Clausius-Clapeyron equation, the variables related to the measured values that would typically be graphed on the x and y axes depend on the specific application.
Generally, the natural logarithm of the vapor pressure (ln P) is plotted on the y-axis, while the reciprocal of the absolute temperature (1/T) is plotted on the x-axis. The slope (m) and y-intercept (b) of the resulting linear graph have specific interpretations in the context of the equation.
The Clausius-Clapeyron equation relates the vapor pressure of a substance to its temperature. It is expressed as ln(P) = -ΔHvap/R * (1/T) + C, where P is the vapor pressure, ΔHvap is the enthalpy of vaporization, R is the gas constant, T is the temperature, and C is a constant. When graphing this equation, we often plot ln(P) on the y-axis and 1/T on the x-axis.
The graph obtained from plotting these variables follows a linear relationship. The slope of the resulting line, denoted as m, is equal to -ΔHvap/R. This slope provides valuable information about the enthalpy of vaporization, which is a measure of the energy required to convert a substance from its liquid phase to its gas phase. The y-intercept, denoted as b, represents the constant C in the equation, which accounts for any initial conditions or deviations from the ideal gas behavior.
By plotting ln(P) against 1/T, we can determine the slope and y-intercept of the linear graph. These parameters have specific physical interpretations and can provide insights into the thermodynamic properties of the substance under investigation. Analyzing the slope and y-intercept values can help in quantifying the enthalpy of vaporization and understanding the behavior of the substance as its temperature changes.
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Simon set up his tent in his backyard last night. His tent is 6 feet tall. To secure it to the ground, he attached a rope from the top of the tent to the ground 8 feet away from the bottom of the tent as shown below. How many feet long, R, is the rope?
Length of Simon's tent = 6 feet
Distance from the bottom of the tent to the tent's base = 8 feet
Let the length of rope be R.
The tent and the rope forms a right angle triangle where the rope is the hypotenuse.
We know that :
\(\color{hotpink} \tt{hypotenuse}^{2} \color{plum}= {base}^{2} + {height}^{2} \)
Which means :
\( = \tt {R}^{2} = {6}^{2} + {8}^{2} \)
\( =\tt {R}^{2} = 36 + 64\)
\( = \tt {R}^{2} = 100\)
\( =\tt R = \sqrt{100} \)
\(\hookrightarrow\color{plum}\tt \bold{R = 10 \: feet}\)
Thus, the hypotenuse of this triangle = 10 feet
▪︎Therefore, the length of the rope = 10 feet
2. Which equation represents a line that is perpendicular to the line
represented by y = 2/3 + 1
Let x(t)= [[x_{1}(t)], [x_{2}(t)]] | be an unknown vector-valued function. The system of linear differential equations
x' * (t) = [[2, 1], [1, 1]] * x(t)
subject to the condition x(0) = [[1], [- 1]] has unique solution of the form
x(t) = e ^ (d_{1}*t) * v_{1} + e ^ (d_{2}*t) * v_{2}
where d_{1} <= d_{2}
Find the vectors
[[d_{1}], [d_{2}]], v_{L}
and V_{2} You may use a calculator.
The given system of linear differential equations x' * (t) = [[2, 1], [1, 1]] * x(t) can be written as x' * (t) = A * x(t), where A is the matrix [[2, 1], [1, 1]]. We need to find the eigenvalues and eigenvectors of A.
First, let's find the eigenvalues. We solve the characteristic equation det(A - λI) = 0, where I is the identity matrix: det([[2, 1], [1, 1]] - λ[[1, 0], [0, 1]]) = 0
Expanding the determinant, we get:
(2 - λ)(1 - λ) - 1 = 0
λ² - 3λ + 1 = 0
Using the quadratic formula, we find the eigenvalues:
λ₁ = (3 + sqrt(5))/2
λ₂ = (3 - sqrt(5))/2
Next, we find the corresponding eigenvectors. For each eigenvalue, we solve the equation (A - λI)v = 0:
For λ₁ = (3 + sqrt(5))/2:
[[2 - (3 + sqrt(5))/2, 1], [1, 1 - (3 + sqrt(5))/2]] * [[v₁₁], [v₁₂]] = [[0], [0]]
Simplifying the matrix equation, we get:
[[(1 - sqrt(5))/2, 1], [1, (1 - sqrt(5))/2]] * [[v₁₁], [v₁₂]] = [[0], [0]]
Solving this system of equations, we find the eigenvector [[v₁₁], [v₁₂]].
Similarly, for λ₂ = (3 - sqrt(5))/2, we solve the equation:
[[(1 + sqrt(5))/2, 1], [1, (1 + sqrt(5))/2]] * [[v₂₁], [v₂₂]] = [[0], [0]]
Solving this system of equations, we find the eigenvector [[v₂₁], [v₂₂]].
Finally, we have found the vectors [[d₁], [d₂]] = [[(3 - sqrt(5))/2], [(3 + sqrt(5))/2]], [[v₁₁], [v₁₂]], and [[v₂₁], [v₂₂]].
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Jim had three more than twice the number of doughnuts as Jane. Jim had 15 doughnuts. What is the equation to find out how many doughnuts Jane had?
Answer:
x = 15 * 2 + 3
Step-by-step explanation:
hope this helps!
A can of paint will cover 100 square feet. How many cans of paint will Hannah need to buy to paint all six surfaces of her room?
Answer:
need to know the dimentions of the room
Step-by-step explanation:
As an estimation we are told £3 is €4 convert £13.50 to euros
Answer:
€18 is the answer
If you’ve been given an estimate, use that to determine how much £13.50 would be by cross multiplying
Hey! Can I get some help with this?
Answer: A 27√2
Step-by-step explanation:
You first need to simplify the roots
3√50+4√18
= \(3\sqrt{2*25} +4\sqrt{9*2}\) break up what is under the root into factors of 50 and 18, make perfect squares is best.
For the first term, You can take the √25 =5 so 5 comes out and is multiplied by the 3 but the 2 stays unders the root
For the second term, you can take √9 =3 so 3 comes out and is multipled by the 4 but the 2 stays under the root.
=5*3√2 +4*3√2
=15√2 +12√2 now they are same terms so you can add
=27√2
Jessica paid $25.50 for 3.4 pounds of shrimp. How much would it cost her to buy 8 pounds?
Answer: The answer would be $60
Step-by-step explanation: You would first wanna solve for how much one pound of shrimp costs, which is $7.5 (you divide 25.50 by 3.4) Then you would want to multiply 7.5 by 8 to get how much 8 pounds of shrimp costs.