Answer:
-22
Step-by-step explanation:
Ok, so, you do -2*-2 because it's m to the power of 2. and that's 4. 4-7= -3
then reverse it. so it is 3-n to the power of 2. n=5 so do, 5*5=25. then do: 3-25. I think you can do solve the rest by your own now, ;p
an insurance company checks police records on 582 accidents selected at random and notes that teenagers were at the wheel in 91 of them. (a) (8 pts) find the 95% confidence interval for , the true proportion of all auto accidents that involve teenage drivers. (note: for full credit, show all your work. no credit
The 95% confidence interval for the true proportion of all auto accidents involving teenage drivers is approximately (0.1205, 0.1927).
To find the 95% confidence interval for the true proportion of all auto accidents involving teenage drivers, we can use the formula for the confidence interval for a proportion.
The formula for the confidence interval is:
CI = p1 ± Z * √((p1 * (1 - p1)) / n)
Where:
CI is the confidence interval,
p1 is the sample proportion (proportion of accidents involving teenage drivers),
Z is the Z-score corresponding to the desired confidence level (95% confidence level corresponds to Z ≈ 1.96),
n is the sample size (number of accidents checked).
Given:
Number of accidents checked (sample size), n = 582
Number of accidents involving teenage drivers, x = 91
First, we calculate the sample proportion:
p1 = x / n = 91 / 582 ≈ 0.1566
Now we can calculate the confidence interval:
CI = 0.1566 ± 1.96 * √((0.1566 * (1 - 0.1566)) / 582)
Calculating the standard error of the proportion:
SE = √((p1 * (1 - p1)) / n) = √((0.1566 * (1 - 0.1566)) / 582) ≈ 0.0184
Substituting the values into the formula:
CI = 0.1566 ± 1.96 * 0.0184
Calculating the values:
CI = 0.1566 ± 0.0361
Finally, we can simplify the confidence interval:
CI = (0.1205, 0.1927)
Therefore, the 95% confidence interval for the true proportion of all auto accidents involving teenage drivers is approximately (0.1205, 0.1927).
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Find the rules for the composite functions f ∘ g and g ∘ f. f(x) = sqrt(x + 6) text( ; ) g(x) = 1/(x - 6)
The rules for the composite functions f ∘ g and g ∘ f are:
f ∘ g(x) = sqrt((1/(x-6))+6) with x≠6
g ∘ f(x) = 1/(sqrt(x+6)-6) with x>-6.
The composite function f ∘ g represents applying the function f to the output of function g. On the other hand, the composite function g ∘ f represents applying the function g to the output of function f.
To find f ∘ g, we first substitute the function g(x) into f(x), giving f(g(x)) = sqrt((1/(x-6))+6). This is the composite function f ∘ g.
To find g ∘ f, we substitute the function f(x) into g(x), giving g(f(x)) = 1/(sqrt(x+6)-6). This is the composite function g ∘ f.
It's important to note that the domains of the composite functions are restricted by the domains of the individual functions, as we cannot take the square root of a negative number or divide by zero.
Therefore, the rules for the composite functions f ∘ g and g ∘ f are:
f ∘ g(x) = sqrt((1/(x-6))+6) with x≠6
g ∘ f(x) = 1/(sqrt(x+6)-6) with x>-6.
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For this experiment you have been randomly assigned to a group consisting of you and one other person. You do not know now, nor will you ever know, who this other person is. For this experiment all you have to do is distribute your 10 points into two accounts. One account called KEEP and one account called GIVE. The GIVE account is a group account between you and your group member. For every point that you (or your group member) put in the GIVE account, I will add to it 50% more points and then redistribute these points evenly to you and your group member. The sum of the points you put in KEEP and GIVE must equal the total 10 points. Any points you put in the KEEP account are kept by you and are part of your score on this experiment. Your score on the experiment is the sum of the points from your KEEP account and any amount you get from the GIVE account. For example, suppose that two people are grouped together. Person A and Person B. If A designates 5 points in KEEP and 5 points in GIVE and person B designates 10 points to KEEP and 0 points to GIVE then each person’s experiment grade is calculated in this manner: Person A’s experiment grade = (A’s KEEP) + 1.5(Sum of the two GIVE accounts)/2 = 5 +(1.5)(0+5)/2= 5 + 3.75 = 8.75. Person A’s score then is 8.75 out of 10. Person B’s experiment grade = (B’s KEEP) + 1.5(Sum of the two GIVE accounts)/2 = 10 +(1.5)(0+5)/2 = 10 + 3.75. Person B’s score then is 13.75 out of 10. (you can think of any points over 10 as extra credit) In this module’s activity you were asked to make a decision about how to invest your resources (points). This activity is a classic strategic game where the good of the individual is at odds with the good for the group. These problems are pervasive in risk management. For example, a physician who is trained to treat diseases may be reluctant to discuss alternative treatments with a patient when the physician is sure that a specific treatment is the only truly viable treatment. Nonetheless, you have learned in this course that physicians (or an agent of the physician) must have this discussion and bow to the will of the patient even if, in the physician’s judgment, the patient chooses an alternative treatment which is likely to be superfluous. In this way, informed consent and patient education are nuisances to the physician but are very important to protect the group (maybe a hospital or surgical group) from liability. In light of recent events another example is warranted. Individuals may choose to not get vaccinated since they do not want to bear the risk of any possible adverse side-effects of a vaccine. This is perfectly reasonable to do so. The problem arises when large groups of people choose to not get vaccinated thus making the impact of the disease relatively larger than need be if everyone would choose to take a vaccine (remember our first cost-benefit experiment). This implies that individual’s rights to choose not to vaccinate are at odds with what is good for the group of individuals. These types of problems are common in risk management. Discussion: (If you post your answers to each of the four questions below before the deadline, you will get the full ten points for the discussion. The questions do not need to be answered mathematically or with a calculation. If you feel the need to use mathematics to make a calculation, then you are free to do so but the questions are merely asking you for a number and how you arrived at that number. If you do not do any calculations to arrive at the number, just say how you arrived at the number. (There are no incorrect answers.) 1. In this activity how did you arrive at your decision on the keep-give split? 2. What is the best outcome of this situation for you? 3. What is the best outcome of this situation for the group? 4. Can you see any parallels with this game and how risk management strategies work? Explain.
1. I based my decision on allocating points to maximize my own score, while also considering the potential benefits of contributing to the group fund.
2. The best outcome for me would be allocating the minimum points required to the GIVE account, while putting the majority in the KEEP account. This would ensure I receive the most points for myself.
3. The best outcome for the group would be if both participants maximized their contributions to the GIVE account. This would create the largest group fund, resulting in the most redistributed points and highest average score.
4. There are parallels with risk management strategies. Individuals may act in their own self-interest, but a larger group benefit could be achieved if more participants contributed to "group" risk management strategies like vaccination, safety protocols, insurance policies, etc. However, some individuals may free ride on others' contributions while benefiting from the overall results. Incentivizing group participation can help align individual and group interests.
Please help me with is problem
Answer:
Its A :)
Step-by-step explanation:
You leave an 22% tip on a $54 bill. How much did you pay?
Answer:
You will pay $65.88 in total
Step-by-step explanation:
Bill amount: $54
Tip: 22% = $54 * 0.22 = $11.88
Sum up: $54 + $11.88 = $65.88
y = (x – 3)^2 Vertex? (-3.0) (3.0) (0.3) (0, -3)
In ΔVWX, w = 600 cm,
�
m∠V=26° and
�
m∠W=80°. Find the length of v, to the nearest 10th of a centimeter.
The length of v is given as follows:
v = 267.1 cm.
What is the law of sines?The law of sines is used in the context of this problem as we have two sides and two opposite angles, hence it is the most straightforward way to relate the side lengths.
Each side length is related with the sine of the opposite angle as follows:
sin(A)/a = sin(B)/b = sin(C)/c.
The relation for this problem is given as follows:
sin(26º)/v = sin(80º)/600
Hence we apply cross multiplication to obtain the length v is obtained as follows:
sin(26º)/v = sin(80º)/600
v = 600 x sine of 26 degrees/sine of 80 degrees
v = 267.1 cm.
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What is the y-intercept
Answer:
y-intercept: 3
equation: y = -x + 3
Step-by-step explanation:
For problem #6: (-2,5) and (2,1)
Slope m = (y2 - y1)/(x2 - x1)
=>m = (1 - 5)/(2 - -2) = -4/4 = -1
Slope-intercept form is y = mx + b
Given m = -1, y = 1, x = 2
=> 1 = -1(2) + b
=> 1 = -2 + b
=> b = 1 + 2 = 3
equation: y = -x + 3
since b is the y-intercept => 3
express in simplified exponential notation.
x^3 •x^5=
The simplified exponential notation of the given expression is x⁸.
Given that, simplified exponential notation, x³·x⁵,
x³·x⁵ we need to simplify it,
We know that,
mᵃ × mᵇ = mᵃ⁺ᵇ
x³·x⁵ = x³⁺⁵
x³·x⁵ = x⁸
Hence, the simplified exponential notation of the given expression is x⁸.
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Consider the following parametric curve. Answer parts a and b. X= -1 + 3t, y = 5 + 6t; t = 3 a. Determine dy/dt in terms of t and evaluate it at the given value of t. Dy/dx = ____
Dy/dx for the given parametric curve is 2..
to determine dy/dt in terms of t for the given parametric curve x = -1 + 3t and y = 5 + 6t, we can differentiate the equation for y with respect to t using the chain rule:
dy/dt = d/dt (5 + 6t) = 6
this means that the rate of change of y with respect to t is a constant value of 6, which is not dependent on the value of t.
to find dy/dx, we can use the chain rule to express dy/dx in terms of t:
dy/dx = (dy/dt) / (dx/dt)
= 6 / 3 = 2
parametric curve. Answer parts a and b. X= -1 + 3t, y = 5 + 6t; t = 3 a. Determine dy/dt in terms of t and evaluate it at the given value of t. Dy/dx =
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HELP ASAP
Points $A(-1, -2)$ and $B(3, 2)$ are the endpoints of a diameter of a circle graphed in a coordinate plane. How many square units are in the area of the circle? Express your answer in terms of $\pi$.
Answer:
8π units²
Step-by-step explanation:
center=((-1+3)/2,(-2+2)/2)=(1,0)
\(radius~r=\sqrt{(3-1)^2+(2-0)^2} =\sqrt{4+4} =\sqrt{8} \\area~of~circle=\pi r^2=\pi \times (\sqrt{8} )^2=8\pi ~square~units.\)
Need help with this,30 points, please help very soon, thanks
A small airplane makes a 2400 kilometer trip in 7.30 hours and makes the returned trip in six hours. If the plane travels at a constant speed wind blows at a constant rate, find the airplanes airspeed and the speed of the wind.
The speed of the airplane is 360 km/h while the speed of the wind is 40 km/h.
What is an equation?An equation is an expression that shows the relationship between two or more variables and numbers.
Let a represent the speed of the airplane and b represent the speed of the wind, hence:
(a + b)6 = 2400
a + b = 400 (1)
Also:
(a - b)7.5 = 2400
a - b = 320 (2)
From eqn 1 and 2:
a = 360 km/h, b = 40 km/h
The speed of the airplane is 360 km/h while the speed of the wind is 40 km/h.
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Can I get 10 comments in 10 minutes
Answer: Welp, here it is.
Step-by-step explanation:
I clicked the keyboard :)
hhhhhhhhhhhhhhhhhhhhhhhhh
How much is 3 nines?
Answer:
to the third power ?
Step-by-step explanation:
Answer:
The answer is 27!
Step-by-step explanation:
9 plus 9 equals 18 plus 9 equals 27!
Select the correct answer from each drop-down menu. Consider function f, where B is a real number. Complete the statement describing the transformations to function f as the value of B is changed. As the value of B increases, the period of the function , and the frequency of the function . When the value of B is negative, the graph of the function .
The answer through which all the value of the given relation satisfied the relation is period decreases, frequency increases and reflected in y - axis.
What about frequency?
In mathematics, frequency is a term used in statistics to describe how often a particular value or set of values appears in a dataset. Specifically, frequency refers to the number of times a particular data point or value occurs in a dataset.
For example, consider a dataset of test scores for a class of students. The frequency of a particular score (e.g., 80%) would be the number of students who received that score. The frequencies can be used to create a frequency distribution, which is a table that shows the frequency of each value or group of values in a dataset.
According to the given information:
In the given condition as the value of B increases, the periodic function decreases and the frequency of the function increases where as, when the value of B is negative, the graph of the function reflected in y-axis.
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Allison was left an inheritance from her great aunt on her 12 birthday. However, she , she not able to touch it until she is 21 years old. She inherited $$50,000 that was put into an account with 2% interest
Answer:
18% intrest
Step-by-step explanation:
Experimentally Verify That The Base Angles Of An Isosceles Triangle Are Equal. (two figures of different measurements are necessary)
Answer:
To experimentally verify that the base angles of an isosceles triangle are equal, we will need two isosceles triangles of different sizes.
Materials needed:
Two sheets of paper
Ruler
Pencil
Protractor
Scissors
Experiment:
Draw a large isosceles triangle on one sheet of paper by drawing a straight line at least 20 cm long. Then draw two additional lines from each end of the first line to meet at the top, forming an isosceles triangle. Label the base as "AB" and the other two sides as "AC" and "BC."
Measure and mark the midpoint of the base "AB."
Using a ruler, draw a perpendicular bisector through the midpoint of the base. This line should create two congruent segments.
Measure each angle formed by the intersection of the perpendicular bisector and the two sides of the triangle. Use a protractor to measure these angles.
Repeat steps 1-4 with a smaller isosceles triangle on the second sheet of paper. The smaller triangle should have a base of at least 10 cm and two sides of equal length.
Compare the measurements of the angles of both triangles. If the triangles are truly isosceles, then the two angles opposite the base (ACB) should measure the same in both triangles.
Cut out both isosceles triangles along their outlines.
Fold each triangle along the perpendicular bisector line drawn in step 3 so that the two congruent segments come together.
If the angles opposite the base are indeed equal, then the two sides of each triangle should match up perfectly when folded along the perpendicular bisector. If they do not match up, then the triangles are not truly isosceles.
By repeating this experiment with different sized isosceles triangles, we can verify that the base angles of any isosceles triangle are always equal.
As seen in the simulations, when a population is extremely skewed (for ex., exponential), the sampling distribution of xbar for random samples of 40 observations Group of answer choices is a triangle. is strongly skewed. is roughly normal.
As seen in the simulations, when a population is extremely skewed, such as in the case of an exponential distribution, the sampling distribution of x (the sample mean) for random samples of 40 observations is roughly normal.
The Central Limit Theorem states that as the sample size increases, the sampling distribution of the sample mean approaches a normal distribution, regardless of the shape of the population distribution. Therefore, even if the population distribution is extremely skewed, the sampling distribution of x tends to become approximately normal as the sample size increases. This is observed in the simulations, where the sampling distribution of x becomes more symmetric and bell-shaped as the sample size increases.
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There are 25 students in Ms. Jackson's fifth-grade class. The students want to go on a field trip to a museum. The cost of admission to the museum for the 25 students is $625. The cost of the bus is $250.
The students plan to sell raffle tickets to pay for the trip. Each raffle ticket is sold for $5. How many tickets will each student in the class have to sell?
Answer:
175 tickets
Step-by-step explanation:
The total cost is 875
y = mx
The y is the total cost. The m is the cost of a ticket and x is the number of tickets that need to be sold
875 = 5x Divide both sides by 5
175 = x
Helping in the name of Jesus.
Answer:7 tickets
because 625+250 is 875 ..875/25=35
each ticket is $5 and 35/5 is 7
Your friends have locked themselves out of the house, and they need your help to get back in. They have a 20 foot long ladder, and there is an open window 16 feet above the ground. How far from the wall should you hold the base of the ladder while they climb back in?
Solution:
Given:
where;
\(\begin{gathered} l=20ft \\ h=16ft \end{gathered}\)A right triangle can be extracted from the image above,
Applying the Pythagoras theorem to the right triangle,
\(\begin{gathered} \text{hypotenuse}^2=\text{opposite}^2+\text{adjacent}^2 \\ \\ \text{Thus,} \\ l^2=h^2+w^2 \end{gathered}\)To find w, substitute the known values into the formula,
\(\begin{gathered} l^2=h^2+w^2 \\ 20^2=16^2+w^2 \\ 400=256+w^2 \\ 400-256=w^2 \\ 144=w^2 \\ w=\sqrt[]{144} \\ w=\pm12 \\ Si\text{nce the problem is on the distance to hold the base of the ladder, we pick the positive value only.} \\ \text{Thus,} \\ w=12ft \end{gathered}\)Therefore, the distance from the wall that the base of the ladder should be while they climb back in is 12 feet.
Hence, option D is the correct answer.
(ANSWER ASAP) Solve the inequality.
Answer:
a>6
Step-by-step explanation:
add 2 to both sides
Answer:
a>6
Step-by-step explanation:
First, you would add 2 to each side to cancel out the -2 after the a. Now, you have a>6.
What is the volume of a sphere with a radius of 34.2 m, rounded to the nearest tenth
of a cubic meter?
Answer:
167558.7
Step-by-step explanation:
i got it right
7 part answer pls!!
The consumption of disel in truck A in one day is 102/208 ml and the consumption of truck B is 105/196 ml. Which truck consumed more disel and by how much?
Truck B consumed 0.045 mL more diesel than Truck A.
How to obtain the consumptions of each truck?The fuel consumption for each truck is obtained applying the proportions in the context of the problem.
A proportion is applied as we are converting a fraction to decimal, dividing the numerator by the denominator, as follows:
102/208 ml = 0.49 mL -> divide 102 by 208.105/196 ml = 0.535 mL -> divide 105 by 196. -> consumed more.Hence the difference is given as follows:
0.535 - 0.49 = 0.045 mL.
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According to the product structure tree for Bell laptops on p. 4
of the lecture materials on Master Scheduling and Bill of
Materials, how many hard drives (01-hdrive) are required to produce
250 Bell
If 250 Bell laptops are to be produced, then 250 hard drives will be required.
According to the product structure tree for Bell laptops on page 4 of the lecture materials on Master Scheduling and Bill of Materials, the total number of hard drives (01-hdrive) required to produce 250 Bell laptops is 250.Each Bell laptop requires one hard drive to be produced.
Therefore, if 250 Bell laptops are to be produced, then 250 hard drives will be required.
This can be seen in the product structure tree where the hard drive is a sub-assembly of the Bell laptop, and each Bell laptop requires exactly one hard drive. The product structure tree also shows that each hard drive requires a number of components to be produced, such as a hard drive case, a circuit board, and a motor.
These components are also shown as sub-assemblies of the hard drive.
Overall, the product structure tree is a useful tool for understanding the relationships between the components and sub-assemblies that are required to produce a finished product. It provides a detailed breakdown of the product structure, which is essential for effective production planning and scheduling.
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suppose we select every fifth invoice in a file. what type of sampling is this? cluster random systematic stratified
We select every fifth invoice in a file is systematic sampling.
'What is systemic sampling?'Systematic sampling is a probability sampling technique where researchers choose individuals from the population at predetermined intervals (or k).
This method will provide you with a representative sample that can be utilized to make inferences about your community of interest if the population order is random or random-looking (for example, alphabetical).
This type of sampling is most suitable when we want to conduct a sampling method similar to simple random sampling but the list of population is unknown to us. However, this can also be used when the list of the same is available to us.
Another important condition is the order or the population, i.e. ow it is spread must be random and not in some particular order or sample. Else the result obtained will lose its credibility.
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Find the missing side lengths. Leave your answer as radicals in simplest form.
The values of the sides are;
41. x = 18√3. Option D
42. x = 6√3. Option A
How to determine the valuesUsing the different trigonometric identities, we have;
41. Using the tangent identity, we have;
tan 60 = 9√2/y
cross multiply the values
y =9√2 ×√3
y = 9√6
Using the sine identity;
sin 45 = y/x
1/√2 = 9√6/x
cross multiply the values, we have;
x = 9√2 ×√3 ×√2
x = 18√3
42. Using the cosine identity
cos 60 = 3√3 /x
cross multiply, we have;
x = 6√3
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What is the coefficient in the following expression
A small publishing company is planning to publish a new book. The production costs will include one-time fixed costs (such as editing) and variable costs (such as printing). The one-time fixed costs will total $50,386. The variable costs will be $9.25 per book. The publisher will sell the finished product to bookstores at a price of $24.50 per book. How many books must the publisher produce and sell so that the production costs will equal the money from sales?
Answer:
The answer to this problem is 2056 books
Step-by-step explanation:
First you have to add the one-time fixed costs of $50,386 to the variable costs of $9.25 per book. The divide the sum of 50,386 and 9.25 to get your answer of 2056.
Share $50 among Terry, Leroy and Johnson in the ratio 1:3:6. How much money does Terry get?
Answer:
$30
Step-by-step explanation:
Terry's ratio =6
Total ratio = 1+3+6 =10
Terry's share
\(= \frac{6}{10} * 50\\\\ \\ = 6 * 5\\\\= $30\\\)
$30
Need the question answered asap
Step-by-step explanation:
First find the area of the rectangle with the variables.
\((x + 5) \times x = {x}^{2} + 5x\)
Now the areas are equal, so we have to solve the equation
\( {x}^{2} + 5x = 36 \\ x + \sqrt{5x} = 6 \\ 3.236x = 6 \\ x = 1.854\)