Answer: i don't know
Step-by-step explanation:
Answer:
30
Step-by-step explanation: because 3×10 equals 30
The Department of Health plans to test the lead level in a public park. The park will be closed if the average lead level exceeds the allowed limit of 400 parts/million, otherwise, the park will be kept open. The department conducts the test using soil samples gathered at randomly selected locations in the park. You work for the Department of Health and your concern is for public safety and overall health of communities In this situation, would you make alpha or beta as low as possible and why? Beta. This type of error would be that when the test was conducted, it indicated that the lead levels exceeded 400 parts/million, but it really didn't and the park was determined to be unsafe when it really wasn't. Alpha. This type of error would be that when the test was conducted, it indicated that the lead levels exceeded 400 parts/million, but it really didn't and the park was determined to be unsafe when it really wasn't. Alpha. This type of error would be that when the test was conducted, it indicated that the lead levels didn't exceed 400 parts/million, but it really did and the park was left open when it really wasn't. Beta. This type of error would be that when the test was conducted, it indicated that the lead levels didn't exceed 400 parts/million, but it really did and the park was left open when it really wasn't safe.
The correct answer is Beta. In this case, it is more important to make the Beta error as low as possible.
This is due to the Beta error being a false negative, which would suggest that the lead levels did not go above the permitted limit even though they did.
As a result, the park would continue to be open and the general public would be exposed to a potentially dangerous situation.
On the other side, a false positive (also known as an Alpha error) would cause the park to be closed without a need and would prevent the public from accessing a secure park.
Making the Beta error as small as feasible is therefore more crucial in order to protect the public from unwarranted dangers.
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what is the value of 7⁰
Answer
1
Step-by-step explanation:
Any number multiplied to the 0 power is going to equal 1. it is just one of those things that is a rule and it is important to remember.
Represent each of the following sequences as functions. In each case, state a domain, codomain, and rule for determining the outputs of the function. Also, determine if any of the sequences are equal.
(a) 1,14,19,116,…
(b) 13,19,127,181,…
(c) 1,−1,1,−1,1,−1,…
(d)cos(0),cos(π),cos(2π),cos(3π),cos(4π),…
The sequence cos(0),cos(π),cos(2π),cos(3π),cos(4π),… can be represented as a function k: N -> R, where N is the set of natural numbers and R is the set of real numbers. The domain of the function is the set of natural numbers, and the codomain is the set of real numbers. The function l: N -> {-1,1}, where l(n) = (-1)^(n).
The sequence 1,14,19,116,… can be represented as a function f: N -> N, where N is the set of natural numbers. The rule for determining the outputs of the function is as follows: f(1) = 1, f(2) = 14, f(3) = 19, f(4) = 116, and so on.
The sequence 13,19,127,181,… can be represented as a function g: N -> N, where N is the set of natural numbers. The rule for determining the outputs of the function is as follows: g(1) = 13, g(2) = 19, g(3) = 127, g(4) = 181, and so on. The domain of the function is the set of natural numbers, and the codomain is also the set of natural numbers. We can see that this sequence is not equal to any of the other sequences given.
The sequence 1,−1,1,−1,1,−1,… can be represented as a function h: N -> {-1,1}, where N is the set of natural numbers. The rule for determining the outputs of the function is as follows: h(1) = 1, h(2) = -1, h(3) = 1, h(4) = -1, and so on. The domain of the function is the set of natural numbers, and the codomain is the set {-1,1}. We can see that this sequence is equal to the function f: N -> {-1,1}, where f(n) = (-1)^(n+1).
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An object initially at rest at (3,3) moves with acceleration a(t)={2, e^-t}. Where is the object at t=2?
According to the acceleration, the object is at the point (-7, -3e³ + e⁻²) at t = 2.
To find the position of the object at t = 2, we need to integrate the acceleration twice with respect to time to get the position function. The first integration gives us the velocity function v(t) = {2t + c₁, -e⁻ᵃ + c₂}, where c₁ and c₂ are constants of integration.
We can find these constants by using the initial condition that the object is initially at rest at (3,3). This means that v(0) = {0, 0}, which gives us c₁ = -6 and c₂ = e³.
The second integration gives us the position function r(t) = {t² - 6t + C3, e⁻ᵃ - e³t + C4}, where C3 and C4 are constants of integration.
Again, we can find these constants using the initial condition that the object is initially at rest at (3,3). This means that r(0) = {3, 3}, which gives us C3 = 3 and C4 = 2 - e³.
Finally, we can substitute t = 2 into the position function to find the position of the object at t = 2.
This gives us r(2) = {2² - 6(2) + 3, e⁻² - e³(2) + 2 - e³} = {-7, -3e³ + e⁻²}.
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2 students have vanilla ice cream and 36 students have chocolate ice cream what is the ratio of the number of students who have chocolate to the total number of students
the ratio of the number of students who have chocolate ice cream to the total number of students is 18:19.
To find th ratio of the number of students who have chocolate ice cream to the total number of students,
we first need to add the number of students with vanilla ice cream to the number of students with chocolate ice cream. This will give us the total number of students.Then, we can divide the number of students with chocolate ice cream by the total number of students to get the ratio.
Let's use the given information to find out the number of students who have chocolate ice cream and the number of students who have vanilla ice cream.
Given that,2 students have vanilla ice cream and 36 students have chocolate ice cream.
The total number of students with ice cream is:2 (students with vanilla ice cream) + 36 (students with chocolate ice cream) = 38 (total students with ice cream
)The number of students with chocolate ice cream is 36.
To find the ratio of the number of students who have chocolate ice cream to the total number of students, we need to divide the number of students with chocolate ice cream by the total number of students.
That is,Ratio = Number of students with chocolate ice cream/ Total numberof students= 36/38= 18/19The required ratio of the number of students who have chocolate ice cream to the total number of students is 18:19.
Therefore, the ratio of the number of students who have chocolate ice cream to the total number of students is 18:19.
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( expressions and variables ) i have at least 5 dollars.
Answer:
Hey there!
Let x be the money you have.
Then, we can write x≥5, which shows that you have at least 5 dollars.
Hope this helps :)
Answer:
p-5 where p represents your pay
Step-by-step explanation:
A triangular prism is 12 meters long and has a triangular face with a base of 8 meters and a height of 9 meters. What is the volume of the triangular prism?
The volume of the triangular prism is 216 cubic meters.
To find the volume of a triangular prism, we need to multiply the area of the triangular base by the length of the prism.
Calculate the area of the triangular base.
The base of the triangular face is given as 8 meters, and the height is 9 meters. We can use the formula for the area of a triangle: area = (1/2) * base * height.
Plugging in the values, we get:
Area = (1/2) * 8 meters * 9 meters = 36 square meters.
Multiply the area of the base by the length of the prism.
The length of the prism is given as 12 meters.
Volume = area of base * length of prism = 36 square meters * 12 meters = 432 cubic meters.
Adjust for the shape of the prism.
Since the prism is a triangular prism, we need to divide the volume by 2.
Adjusted Volume = (1/2) * 432 cubic meters = 216 cubic meters.
Therefore, the volume of the triangular prism is 216 cubic meters.
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If CAT ~ MUD and the sides of the triangle are the lengths 9 18 21 and 3 6 7 respectively what is the scale factor of triangle CAT to triangle MUD
Answer: The scale factor of triangle CAT to triangle MUD is the ratio of the corresponding side lengths of the two triangles. In this case, we are told that the sides of triangle CAT are 9, 18, and 21 units long, and the sides of triangle MUD are 3, 6, and 7 units long.
To find the scale factor, we divide the length of each side of triangle CAT by the length of the corresponding side of triangle MUD:
Scale factor = (9/3), (18/6), (21/7) =3,3,3
So the scale factor of triangle CAT to triangle MUD is 3. This means that triangle CAT is 3 times larger than triangle MUD.
It's worth noting that the scale factor is the same for all three sides, this means that the two triangles are similar.
Step-by-step explanation:
Aunt Andrea decided to help with decorations for Rachel’s party. Aunt Andrea created a table to find the amount of balloons she will need.
A 2-column table with 4 rows. Column 1 is labeled Tables, x with entries 3, 4, 5, 6. Column 2 is labeled Balloons, y with entries 15, 20, 25, 30.
What is the equation that represents the scenario?
Answer:
y=5x
Step-by-step explanation:
Answer:
b
Step-by-step explanation:
15. 3x-5=3
16. 3(x-2) = 4(x + 3)
17. +3=
18. 2==
19. 4-2-3
X+2
20.-2-3-3
21. 쭉 = 큭
22. 2x-5-1=3-x
3. 2x + ==3(x-1)
4. 10x-1=x+4
5. k=8k-2
6. -x + 2 = 3x-27
4
7. 1-6x = -x +
B.
9. 2-(x + 1) = 2 + 5x
D. 2(1-x) = 10 - (x + 2)
. 9x - (4x - 5) = 3x - 11
x-9=3(x + 1)
-xx-2)-4=x+6▸
+ 2x
6(5-4x) = -4(5x + 11)
Answer:
tgnjfgznjE XVNJ
Step-by-step explanation:
rtjtejWEJAREfnndzjt
Answer:
15. 2.66
16. - 18
17. Impossible
18. Impossible
19. - 1
20. - 8
21.
The angle of the roof on a shed is 23 degrees. the shed is 8 metres wide and the walls are 3 metres high. Find the length, y, of one side of the roof
According to the question and after using the Pythagorean theorem the length of one side of the roof is 7.416 metres.
What is Pythagorean theorem?The Pythagorean Theorem is a mathematical formula used to determine the length of the sides of a right triangle. It is named after the Greek mathematician Pythagoras, who is credited with discovering the formula in the 6th century BC. The theorem states that the sum of the squares of the two shorter sides of the triangle is equal to the square of the hypotenuse (the longest side of the triangle). In equation form, it is expressed as a² + b² = c², where a and b are the lengths of the two shorter sides of the triangle and c is the length of the hypotenuse.
We know that the hypotenuse is 8 metres (the width of the shed) and the two shorter sides are 3 metres (the height of the walls) and y (the length of the side of the roof).
Therefore, using the Pythagorean theorem, we have:
3² + y² = 8²
9 + y² = 64
y² = 55
y = √55
y = 7.416 metres
Therefore, the length of one side of the roof is 7.416 metres.
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What is SSS congruence rules?
SSS congruence rules states that if three sides of one triangle are equal to the three sides of another triangle, then the two triangles are congruent.
The SSS (Side-Side-Side) congruence rule states that if three sides of one triangle are equal to the three sides of another triangle, equal, and the two triangles share the same dimensions then the two triangles are congruent. This means that all of the angles and sides of the two triangles are In order for two triangles to be congruent according to the SSS congruence rule, the lengths of the three corresponding sides of the two triangles must be equal. If all three of these conditions are met, then the two triangles are congruent and can be used to solve a variety of geometric problems.
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The SSS congruence rule is rule that is used to prove two triangles congruent . Its full form is Side-Side-Side Congruence .
The Two Triangles can be called as Congruent Triangles if their sides have same length and the angles also have the same measure.
One of the 4 rules in proving the triangles congruent is SSS .
The SSS Congruence Rules also called as (Side-Side-Side) Rule means that if all the three sides of one triangle are equal to the corresponding three sides in the other triangle ,
then we can say that the two triangles are congruent by SSS (Side-Side-Side) Rule .
Therefore , The SSS Congruence rule means Side-Side-Side Congruence .
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3^2 + 2^3
It’s looks so easy but I can’t figure it outttt
Answer:
9 plus 8 = 17
Step-by-step explanation:
3^2 plus 2^3
Answer:
Hi
Step-by-step explanation:
So, 3 to the second power.
Let me put it this way and maybe it will be easier for you to understand :)
so we have 3 to the second power. You would take the 3 and multiply it by itself because it has a 2. (or to the second power) So, 3^2 = 9 because 3 times 3 is 9.
2^3 is the same thing. You would multiply the 2 by itself 3 times. It would look like this-
2x2x2 = 8
So, after you figure this out, you just add the two numbers you get!
So, your answer would look like this:
3^2 or 3 x 3 = 9
2^3 or 2 x 2 x 2 = 8
So to simplify the equation,
9 + 8 = 17
(Thus, the answer is 17)
I hope you read at least part of it so you can maybe understand it! Thank you! If you need any more help with this I can further explain it too :) :D Thanks!
asap please!!!! there is pictue below. please make explanation easy to understand to show work
Answer:
48 plastic bandages
Step-by-step explanation:
3/9 = 16/x Set up proportion
3x = 144 Cross multiply
x = 48. Solve for x
If three standard, six-faced dice are rolled, what is the probability that the sum of the three numbers rolled is 9
When three standard six-faced dice are rolled, the probability that the sum of the three numbers rolled is 9 is equal to 10/216 or 5/108.
Total number of ways three dice can be rolled = 6 × 6 × 6 = 216.
Each dice can have any number from 1 to 6. The probability of rolling a particular number on a dice = 1/6.
The probability of rolling a particular number on three dice = (1/6) × (1/6) × (1/6) = 1/216.
In order to get a sum of 9, there are four combinations that can be rolled:
3 + 3 + 3 = 9
3 + 4 + 2 = 9
3 + 5 + 1 = 9
4 + 3 + 2 = 9
The probability of rolling any of these combinations = probability of rolling 3-3-3 + probability of rolling 3-4-2 + probability of rolling 3-5-1 + probability of rolling 4-3-2
= (1/216) + (3/216) + (3/216) + (3/216)
= 10/216 or 5/108.
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I really need help with this integral
Answer:
\(enjoy \: \\ it \\ \\ \)
Need Help! Unit Activity: Inferences and Decision-Making from Data
Answer:
Part B
This statement means that we are 95% confident that our confidence interval and our point estimate of our results from this sample contains the true proportion of national adults who fulfill a certain condition. The margin of error is plus or minus 4 percentage points in our survey, so we are fairly accurate / close to our point estimate.
Part C
Personally, I think that the minimum quota should be different, because nowadays very few people have landlines, and most people have cell phones. I would put it at 80% cell phones, 20% landlines, for the most representative survey possible.
Part D
Unfortunately, there isn't enough information to explain this one, because I can't see the link or view the responses and trends. I would give you the advice that you might want to include all variables and survey conditions: what type of survey was it? how many adults were sampled? what are your hypotheses or preconceived notions? what is the standard error? This should help; if not, please clarify.
What is debris flow? What are the characteristics of flow and
deposition of a debris flow? How to monitor and reduce the risk of
a stream with potential debris flow?
Debris flow refers to a type of fast-moving landslide or mass movement that involves a mixture of water, soil, rocks, and other debris. It typically occurs in mountainous or hilly regions, especially after heavy rainfall or during periods of intense snowmelt.
The characteristics of debris flow include high velocity, thick consistency, and destructive power. They often exhibit a turbulent, surging flow pattern and can transport large volumes of material downstream. Debris flows have the ability to erode and carry away sediment, rocks, and vegetation, causing significant damage to infrastructure, property, and natural environments.
To monitor and reduce the risk of a stream with potential debris flow, various measures can be implemented. Monitoring techniques may include the installation of gauges and sensors to measure rainfall, water levels, and ground movement. Early warning systems can be established to alert residents and authorities of potential debris flow events.
To reduce the risk, structural measures such as the construction of debris flow barriers or channels can be implemented to divert or contain the flow. Land-use planning and zoning regulations can help restrict development in high-risk areas.
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Franchising is a popular way to grow. Subway has about 42,000 franchisees that pay 12. 5% of their annual store revenue ($417,000 average) to subway. About how much does subway collect in franchise fees?.
Total amount that Subway collect in franchise fees = $2,189,250,000
Total number of subway franchisees = 42,000
Average annual store revenue = $417,000
Total paying percentage of franchisees = 12.5%
12.5% of average revenue = (417000×12.5)÷100
= $52,125
Total subway collection in franchise fee= total number of franchisees×amount of fees per franchisees
= 42,000×52,125
= $2,189,250,000
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Since subways has about 42000 franchisees and about $417000 average revenue is earned. Therefore, the total amount that Subway collect in franchise fees is $2,189,250,000.
Subways Franchise operate 16 submarine sandwich shop and they expanded quickly with its long time slogan "East Fresh".
Franchisor gives a franchisee the authority to do business in the franchisor's trade name using its business system it is called franchising.
Subways franchises pay 12.5% every week (gross sales minus the sales tax), 8% goes toward the franchise royalties and 45% gores towards advertising.
The company has the lowest start-up costs compared to many other fast food franchises but does take more royalty and advertising money.
The franchise fee:
A franchise owner pay 12.5% of gross sales minus tax every week. They must pay even if they are losing money.8% of that 12.5% goes toward the franchise royalties and 4.5% is for advertising.Now, according to the question:
Total number of subway franchisees = 42,000
Average annual store revenue = $417,000
Total paying percentage of franchisees = 12.5%
∴ At 12.5% of average revenue = (417000 × 12.5) ÷ 100
= $52,125
Total subway collection in franchise fee
= total number of franchisees × amount of fees per franchises
= 42,000×52,125
= $2,189,250,000
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Add or Subtract to simplify
Answer:
-5x^5 + 2x^3 - 6x should be your answer
what is 2345678900098765445678 times 23456788853456 have to answer unless you are her
Answer:
\(5.50220947\) × \(10^{34}\)
Step-by-step explanation:
Mark as Brainliest
Help please if you don’t mind!!
Thankyou so much
Answer:
Step-by-step explanation:
\(F = \frac{9}{5}C+32\)
Subtract 32 from both sides
\(F-32= \frac{9}{5}C\\\)
Multiply both side by 5/9
\(\frac{5}{9}(F-32)=( \frac{5}{9})* \frac{9}{5}C\\\\ \frac{5}{9}(F-32)=C\\\)
F= 41
\(\frac{5(41-32)}{9}=C\\\\ \frac{5*9}{9}=C\\\\ \frac{45}{9}=C\\\\C = 5\\\\\)
41° F = 5° C
-34, -21, -8.5 Complete the recursively defined function to describe this sequence.
The recursive definition of the arithmetic sequence -34, -21, -8 is:
f(1) = -34.f(n + 1) = f(n) + 13.What is an arithmetic sequence?It is a sequence of values in which the difference between consecutive terms is constant and is called common difference d.
The nth term of an arithmetic sequence is given by the rule presented as follows:
\(a_n = a_1 + (n - 1)d\)
In which \(a_1\) is the first term of the sequence.
An arithmetic sequence can also be defined recursively, as follows:
\(f(1) = a_1\)f(n + 1) = f(n) + d.In this problem, the sequence is given as follows:
-34, -21, -8.
Hence the first term and the common ratio are given as follows:
First term: -34.Common ratio: 13, as each term is the previous term added to 13.Hence the recursive definition of the sequence is:
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what is the slope of the line that passes through the points (10, 3) and (7, 0) write your answer in simplest form
a bag contains 12 yellow and 8 purple marbles. joe pays $2 for the opportunity to pick a marble from the bag. if he picks a yellow marble, he does not get anything. if he picks a purple marble, he gets $k. the game is fair. find the value of k. give an exact answer. do not include the dollar sign in your answer.
The value of k will be $0.8 with a probability of 40%.
What is probability?Probability is a number that indicates the likelihood of an event occurring. Probability is defined as the ratio of favorable outcomes to all outcomes.
Probability = Number of favorable outcomes / Number of samples
Given that a bag contains 12 yellow and 8 purple marbles. joe pays $2 for the opportunity to pick a marble from the bag. If he picks a yellow marble, he does not get anything. if he picks a purple marble, he gets $k.
The probability of getting purple marbles will be,
Probability = 8 / 20
Probability = 2 / 5
Probability = 0.4 or 40%
The value of k will be,
K = $22 x 0.4
k = $0.8
Therefore, the value of k will be $0.8 with a probability of 40%.
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A 90 digit number 9999. Is divided by 89, what is the remainder?
The remainder when a 90-digit number 9999 is divided by 89 is 0, as the result of applying the divisibility rule of 89, which involves reversing the digits of the number and subtracting the smaller from the larger.
To find the remainder when a 90-digit number 9999 is divided by 89, we can use the divisibility rule of 89. The rule states that for any integer n, the number obtained by reversing the digits of n and subtracting the smaller from the larger is divisible by 89.
In this case, we reverse the digits of 9999 to get 9999 again, and subtract the smaller from the larger to get 0. Since 0 is divisible by any number, including 89, the remainder when 9999 is divided by 89 is 0.
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Obtuse triangle. Step 1: Suppose angle A is the largest angle of an obtuse triangle. Why is cosA negative? Step 2: Consider the law of cosines expression for a 2and show that a 2>b2+c2Step 3: Use Step 2 to show that a>b and a>c Step 4: Use Step 3 to explain what triangle ABC satisfies A=103 ∘,a=25, and c=30
CosA is negative for the largest angle in an obtuse triangle. Using the law of cosines, a²>b²+c², a>b, and a>c are derived.
Step 1: As the obtuse triangle has the largest angle A (more than 90 degrees), the cosine function's value is negative.
Step 2: By applying the Law of Cosines in the triangle, a²>b²+c², which is derived from a²=b²+c²-2bccosA, and hence a>b and a>c can be derived.
Step 3: From the previously derived inequality a²>b²+c², we can conclude that a>b and a>c as a²-b²>c². The value of a² is greater than both b² and c² when a>b and a>c.
Therefore, the largest angle of an obtuse triangle is opposite the longest side.
Step 4: In triangle ABC, A=103°, a=25, and c=30.
a² = b² + c² - 2bccos(A),
a² = b² + 900 - 900 cos(103),
a² = b² + 900 + 900 cos(77),
a² > b² + 900, so a > b.
Similarly, a² > c² + 900, so a > c.
Therefore, triangle ABC satisfies a>b and a>c.
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Brandon bought 3 hot dogs and 2 sodas for $14.50 Carson bought 4 hot dogs and 1 soda for $16 how much did each cost?
What is the sum of 7x^2 − 3x + 5 and 8x + 2?
Answer: 7x^2 +5x+7
Step-by-step explanation:
Answer:
= 7x² + 5x + 7
Step-by-step explanation:
(7x² - 3x + 5) + (8x + 2)
= 7x² + 8x - 3x + 5 + 2
= 7x² + 5x + 7
I need help ASAP , State whether set of ordered pairs represent a function
{(-13,4) , (7,-15), (-13,9) (6,-12) (-18,0)
Answer:
No, the given set of pairs does not represent a function
Step-by-step explanation:
For a set of values to be a function, each input must have one and only one output value
Now, for the given set, we can note that:
The input -13 has two output values; 4 and 9
Therefore, this set is not a function
Hope this helps :)