Answer:
The table is function but the graph is not
The following rate ratios give the increased rate of disease comparing an exposed group to a nonexposed group. The 95% confidence interval for the rate ratio is given in parentheses.
3.5 (2.0, 6.5)
1.02 (1.01, 1.04)
6.0 (.85, 9.8)
0.97 (0.92, 1.08)
0.15 (.05, 1.05)
Which rate ratios are clinically significant? Choose more than one correct answer. Select one or more:
a. 3.5 (2.0, 6.5)
b. 1.02 (1.01, 1.04)
c. 6.0 (.85, 9.8)
d. 0.97 (0.92, 1.08)
e. 0.15 (.05, 1.05)
The rate ratios that are clinically significant are 3.5 (2.0, 6.5), 1.02 (1.01, 1.04), and 6.0 (.85, 9.8).
A rate ratio gives the ratio of the incidence of a disease or condition in an exposed population versus the incidence in a nonexposed population. The magnitude of the ratio indicates the degree of association between the exposure and the disease or condition. The clinical significance of a rate ratio depends on the context, including the incidence of the disease, the size of the exposed and nonexposed populations, the magnitude of the ratio, and the precision of the estimate.
If the lower bound of the 95% confidence interval for the rate ratio is less than 1.0, then the association between the exposure and the disease is not statistically significant, meaning that the results could be due to chance. The rate ratios 0.97 (0.92, 1.08) and 0.15 (0.05, 1.05) both have confidence intervals that include 1.0, indicating that the association is not statistically significant. Therefore, these rate ratios are not clinically significant.
On the other hand, the rate ratios 3.5 (2.0, 6.5), 1.02 (1.01, 1.04), and 6.0 (0.85, 9.8) have confidence intervals that do not include 1.0, indicating that the association is statistically significant. The rate ratio of 3.5 (2.0, 6.5) suggests that the incidence of the disease is 3.5 times higher in the exposed population than in the nonexposed population.
The rate ratios that are clinically significant are 3.5 (2.0, 6.5), 1.02 (1.01, 1.04), and 6.0 (0.85, 9.8), as they suggest a statistically significant association between the exposure and the disease. The rate ratios 0.97 (0.92, 1.08) and 0.15 (0.05, 1.05) are not clinically significant, as the association is not statistically significant. The clinical significance of a rate ratio depends on the context, including the incidence of the disease, the size of the exposed and nonexposed populations, the magnitude of the ratio, and the precision of the estimate.
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PLEASE HELP IM ON A TIME LIMIT :(
In the similarity
transformation of AACB
to AEFD, AACB was dilated by
a scale factor of [?], reflected
across the [ ], and moved
through the translation[ ].
A. 2
B. 1/2
C. 3
D. 1/3
Answer:
hey hope this helps
Comparing sides AB and DEAB =
\( \sqrt{ {1}^{2} + {1}^{2} } \)
\( = \sqrt{2} \)
DE
\( = \sqrt{ {(3 - 5)}^{2} + {(1 + 1}^{2} } \\ = \sqrt{ {( - 2)}^{2} + {(2)}^{2} } \\ = \sqrt{4 + 4} \\ = \sqrt{8} \\ = 2 \sqrt{2} \)
So DE = 2 × AB
and since the new triangle formed is similar to the original one, their side ratio will be same for all sides.
scale factor = AB/DE
= 2
It's been reflected across the Y-axis
moved thru the translation of 3 units towards the right of positive x- axis
for this let's compare the location of points B and D
For both the y coordinate is same while the x coordinate of B is 0 and that of D is 3
so the triangle has been shifted by 3 units across the positive x axis
3/6 is simplest form 12/24 1/2 1/3 Choose the pair of equivalent fractions. 1/2=2/4 3/6=15/24 1/3=3/6 Choose the pair of equivalent fractions. 6/12= 1/4 3/5=6/15 3/12=1/4 Choose the pair of equivalent fractions. 1/2= 12/18 5/3=1/3 1/2=5/10 Which is the correct mixed number for this improper fraction: 36/10 3 6/10 3 3/5 3 1/3 Which one is the correct mixed number for this improper fraction: 10/3 1 7/3 2 4/3 3 1/3 Which improper fraction matches this mixed number: 2 5/8 21/8 15/8 18/8 Which improper fraction matches this mixed number: 4 1/2 7/2 9/2 6/2
Answer:
1/2 is the simplest form of 3/6
1/2 and 2/4 are equivalent fractions
3/12 and 1/4 are equivalent fractions
1/2 and 5/10 are equivalent fractions
i am not completely sure about the improper fractions. sorry
Step-by-step explanation:
Answer:
3 5/6
Step-by-step explanation:
i took the test hope you pass
Explain why the vertical line does not represent a linear function.
y
5
G C
1
2 2
4 5 r
The vertical line has
for the input I
> EMERGENCY
Answer:
Its my first answer but may i have a brainlist please im new
Step-by-step explanation:
help me i im not good in math
Number of shirts = dependent variable
Cost of the purchases = independent variable
OF 100 students 65 are members of a mathematics club and 40 are members of a physics club if 10 are members of neither club how many students are members os a)both clubs b) maths only c)physics only
Answer:
C. physics only
\(\it 100-10=90\ students\ are\ members\ of\ the \ clubs\\ \\ 65+40-90=15\ students\ are\ members\ of\ both \ clubs\\ \\ 64-15=50 \ students\ are\ members\ of\ the \ math\ only\\ \\ 40-15=25\ students\ are\ members\ of\ the \ physics\ only\)
Determine the explicit formula for the sequence 4, 7, 14, 25
Step-by-step explanation:
You already know that we use tn=an²+bn+c for these kinds of sequences:
4, 7, 14, 25, ...
7–4=314–7=7now
7–3=4
So 2a=4===> a=2
\( a_{1} = 4 = = > n = 1 \\ 4 = 2 \times {1}^{2} + b + c = = = = > \\ b + c = 2\)
\( a_{2} = 7 = = > n = 2 = = = > \\ 7 = 2 \times {2}^{2} + 2 \times b + c = = = > \\ - 1 = 2b + c\)
b+c=22b+c=–1b=–3, c=5
So the final result is:
\( t_{n} = 2 {n}^{2} - 3n + 5\)
What Linear equation represents the graph?
y =3x + 6
y=3x - 6
y = -3x + 6
y = -3x -6
Answer:
y=-3x-6
Step-by-step explanation:
PLEASE HELP??!!
What is the end behavior of the function f(z)
2c2
1?
O As approaches infinity, f(r) approaches negative infinity. As I approaches
negative infinity, f(x) approaches infinity.
O As I approaches infinity, f(x) approaches infinity. As approaches negative
infinity, f(x) approaches negative infinity.
As I approaches infinity, f(x) approaches negative infinity. As I approaches
negative infinity, f(x) approaches negative infinity.
As I
approaches infinity. f(a) approaches infinity. As 2 approaches negative infinity, f(x) approaches infinity.
Answer:
d
Step-by-step explanation:
!!!!TIMEDD!!!!!!!HELP AS FAST AS POSSIBLE!!!The net of a square pyramid is shown below with dimensions given in
centimeters (cm).
What is the total surface area of this pyramid?
A.120
B.180
C.260
D.420
The total surface area of the pyramid is equal to 260 suqare centimeters. (Correct choice: C)
How to determine the total surface area of a pyramid
In this problem we get the case of a pyramid with a square base, whose surface area is the sum of the areas of the square base and four triangles. The area formulas for the square and the triangles are introduced below:
Square
A = b · h
Triangle
A = 0.5 · b · h
Where:
b - Base length, in centimeters.h - Height, in centimeters.Finally, we get the total surface area of the pyramid:
A = (10 cm)² + 4 · 0.5 · (10 cm) · (8 cm)
A = 100 cm² + 160 cm²
A = 260 cm²
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Solve for x please!!!!!nowwww
Answer:
x = 37
Step-by-step explanation: Every angle in a triangle adds up to 180, so we can set up an equation where (x + 48) + (x + 58) = 180. From here, we can combine like terms to get 2x + 106 = 180. 180-106 is 74. 74 divided by 2 is 37. So, x = 37.
Please help school is ending soon!Two days later, Kelly surveyed the same 13 classmates and found that none of them had been given math homework since she last surveyed them. By how much does the mean of Kelly’s second data set change in comparison with the mean of the data set in her original survey? Explain how to determine the change in the means without calculating the mean of either data set.
Since none of the 13 classmates had been given math homework between the original survey and Kelly's second survey, the sum of the values in the second data set is the same as the sum of the values in the original data set. Therefore, the change in the means can be determined without calculating the mean of either data set by considering the number of data points in each set.
Since both data sets have the same number of data points, the change in the means will be zero. This is because the mean is calculated by dividing the sum of the values by the number of data points, and since the sum of the values is the same in both data sets, the means will also be the same.
In other words, the change in the mean is calculated as follows:
Change in mean = Mean of second data set - Mean of first data set
Since none of the values in the second data set have changed, the mean of the second data set is the same as the mean of the first data set. Therefore, the change in the mean is:
Change in mean = Mean of second data set - Mean of first data set
= Mean of first data set - Mean of first data set
= 0
Thus, the change in the means between Kelly's original survey and her second survey is zero.
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Consider the relation schema R(A,B,C,D,E) with the following functional dependencies F= {A->B, C->B, D->ABC, AC->D, D->E} Compute the candidate key for the given relation Compute the minimal cover of F.
The candidate key for the relation schema R(A,B,C,D,E): A→B, C→B, D→A, D→B, D→C, C→D, D→E.
Candidate key for the given relation: To find the candidate key for the relation schema R(A,B,C,D,E), we need to follow the below steps:
Here, we have the following functional dependencies: A→B, C→B, D→ABC, AC→D, D→E.
Step 1: To normalize the given dependencies, we have the following dependencies:
A→B, C→B, D→ABC, AC→D, D→E becomes
A→B, C→B, D→A, D→B, D→C, D→E.
Step 2: To check for the minimal dependency, we can eliminate the redundancy by eliminating D→ABC. Therefore, we have the following dependency:
A→B, C→B, D→A, D→B, D→C, D→E.
Step 3: Find the closure on each attribute, which is as follows:
1. A+ = {A,B}
2. B+ = {B}
3. C+ = {B}
4. D+ = {A,B,C,D,E}
5. E+ = {E}
Step 4: The combination of attributes that have all attributes of the relation schema, and it will be a candidate key is AD. Therefore, the candidate key is AD.
Compute the minimal cover of F:
Minimal Cover: The minimal set of dependencies that is equivalent to the given set of dependencies is the minimal cover.
We have the following functional dependencies:
A→B, C→B, D→ABC, AC→D, D→E.
The process to compute the minimal cover of F is as follows:
Step 1: To find the redundant dependencies, we need to split the dependencies. We have the following dependencies:
A→B, C→B, D→ABC, AC→D, D→E becomes
A→B, C→B, D→A, D→B, D→C, D→E.
Step 2: To eliminate the dependencies with three attributes, we can use the following steps:
If X→YZ, then X→Y and X→Z.
Therefore, we have the following dependency:
D→A, D→B, D→C.
Step 3: To eliminate the dependency with two attributes, we can use the following steps:
If X→Y and Y→Z, then X→Z.
We have the following dependency: AC→D, C→D.
Step 4: Therefore, the minimal cover of F is A→B, C→B, D→A, D→B, D→C, C→D, D→E.
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Determine whether the equation has One Solution, No Solution, or Infinitely Many Solutions. −3+3x=3x−1−3
Answer:
No solutions (Maybe)
Step-by-step explanation:
If you input 0 into the equation you get -3=-4, which means it has no solutions.
What is the approximate radius of a sphere with a surface area of 65π inches
\(\textit{volume of a sphere}\\\\ V=\cfrac{4\pi r^3}{3}~~ \begin{cases} r=radius\\[-0.5em] \hrulefill\\ V=65\pi \end{cases}\implies 65\pi =\cfrac{4\pi r^3}{3}\implies \cfrac{3}{4\pi}\cdot 65\pi =r^3 \\\\\\ \cfrac{195}{4}=r^3\implies \sqrt[3]{\cfrac{195}{4}}=r\implies 3.65\approx r\)
A tank initially contained 9 liters of water when Emily began to fill the tank with a water hose. The linear relationship between the number of liters of water in the tank and the time in minutes Emily has been filling the tank is represented in the table.
Which description of the slope of this relationship is true?
A.
The slope is 4 and represents the rate at which the water flows into the tank in minutes per liter.
B.
The slope is 4 and represents the rate at which the water flows into the tank in liters per minute.
C.
The slope is
11
2
and represents the rate at which the water flows into the tank in minutes per liter.
D.
The slope is
11
2
and represents the rate at which the water flows into the tank in liters per minute.
Slope is 4 and represents the rate at which the water flows into the tank in liters per minute.
The correct option is B.
What is linear equation?A linear equation is an equation in which the highest power of the variable is always 1. It is also known as a one-degree equation.
Given,
Tank has 9 liters water already
By the table
Amount of water is 17 liters in 2 minutes
But there was 9 liters of water already
So, the tank filled in 2 minutes = 17 - 9 = 8 liters
Tank filled per minute = 8/2 = 4 liters
Amount of water in the tank can be written as
y = 4x + 9
where x is number of minutes
comparing it with slope form of equation
y = m x + c
slope m = 4
Hence, 4 is the slope that represents rate of the flow of water into the tank in liters per minute.
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Select the statement that shows equivalent measurements.
5.2 meters = 0.52 centimeters
5.2 meters = 52 decameters
52 meters = 520 decimeters
5.2 meters = 5,200 kilometers
The statement that shows equivalent measurements is "52 meters = 520 decimeters." Option C.
To determine the equivalent measurements, we need to understand the relationship between different metric units.
In the metric system, each unit is related to others by factors of 10, where prefixes indicate the magnitude. For example, "deci-" represents one-tenth (1/10), "centi-" represents one-hundredth (1/100), and "kilo-" represents one thousand (1,000).
Let's analyze each statement:
5.2 meters = 0.52 centimeters: This statement is incorrect. One meter is equal to 100 centimeters, so 5.2 meters would be equal to 520 centimeters, not 0.52 centimeters.
5.2 meters = 52 decameters: This statement is incorrect. "Deca-" represents ten, so 52 decameters would be equal to 520 meters, not 5.2 meters.
52 meters = 520 decimeters: This statement is correct. "Deci-" represents one-tenth, so 520 decimeters is equal to 52 meters.
5.2 meters = 5,200 kilometers: This statement is incorrect. "Kilo-" represents one thousand, so 5.2 kilometers would be equal to 5,200 meters, not 5.2 meters.
Based on the analysis, the statement "52 meters = 520 decimeters" shows equivalent measurements. So Option C is correct.
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Note the correct and the complete question is
Select the statement that shows equivalent measurements.
A.) 5.2 meters = 0.52 centimeters
B.) 5.2 meters = 52 decameters
C.) 52 meters = 520 decimeters
D.) 5.2 meters = 5,200 kilometers
What list shows these in order from least to greatest?
Square W: A= √325 in.2
Square X: A= 3π/.5 in.2
Square Y: A= 5.5π in.2
Square Z: A= 17.92 in.2
1. Z, Y, W, X
2. X, W, Z, Y
3. Y, Z, W, X
4. W, X, Y, Z
Answer:
4 i am not sure for this answer guess
Instructions: Determine whether the following polygons aresimilar. If yes, type 'yes' in the Similar box and type in the similaritystatement and scale factor. If no, type 'None' in the blanks. For thescale factor, please enter a fraction. Use the forward dash (i.e. /)to create a fraction (e.g. 1/2 is the same as 플CD68°21BA15U112⁰TS5
We need to determine if the polygons are similar or not.
If we notice something we can deduce the following
\(\begin{gathered} length(AD)=3length(VS)\text{ and} \\ length(AB)=3length(ST) \end{gathered}\)Moreover as both figures are parallelograms then
\(\begin{gathered} length(DC)=3length(VU)\text{ and} \\ length(BC)=3length(UT) \end{gathered}\)Finally for construction, both parallelograms have exactly the same angles, in the following way, by geometry we have that
we have that purple angles are equal and for the other side green angles are equal. So in our case,
Since the parallelograms have length of their sides related by a factor of 1/3 and the angles are the same, then, the parallelograms are similar as required.
Similar: YES, scale factor: 1/3
Hudson and Knox are in a race. Hudson is running at a speed of 8. 8 feet per second. Knox got a 30-foot head start and is running at a speed of 6. 3 feet per second. How many seconds will it take until Hudson and Knox have run the same number of feet? Write the equation
It will take 12 seconds until Hudson and Knox have run the same number of feet.
Let's denote the time it takes until Hudson and Knox have run the same number of feet as "t" (in seconds).
The distance Hudson runs can be calculated by multiplying his speed (8.8 feet/second) by the time "t". Thus, the distance Hudson covers is 8.8t feet.
Knox, on the other hand, had a head start of 30 feet. So the distance Knox covers can be calculated by multiplying his speed (6.3 feet/second) by the time "t" and adding the head start of 30 feet. Thus, the distance Knox covers is 6.3t + 30 feet.
To find the time when both runners have covered the same distance, we set their distances equal to each other:
8.8t = 6.3t + 30
Simplifying the equation:
2.5t = 30
Dividing both sides by 2.5:
t = 30 / 2.5
t = 12
Therefore, it will take 12 seconds until Hudson and Knox have run the same number of feet.
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Rearrange 4x+2y=8 to make y the subject.
Step-by-step explanation:
y=(8-4x)/2
y=4-2x
I hope it helps
Answer:
y = 4 - 2x
Step-by-step explanation:
4x + 2y = 8
Subtract 4x on both sides,
2y = 8 - 4x
Divide 2 on both sides,
y = ( 8 - 4x ) / 2
y = 4 - 2x
HELPPPPP PLSSSS I ONLY HAVE A FEW MINUTES LEFT
Answer:
6
Step-by-step explanation:
The second rational number equals 2 1/3.
Adding the mixed numbers:
\(3 \frac{2}{3} + 2 \frac{1}{3} = 5 \frac{3}{3} = 6 \)
Mrs. Brooks brought 1 3/4 batches of cookies to school to share with her friends. At the end of the day, 1/2 of the cookies had been eaten. What percent of the cookies were left?
Question 1 of 25
Which is an equation of the line through (0, 0) and (-3,-7)?
OA. y=-7x
O B. y = x
OC. y=-3x
OD. y = x
SUBMIT
The equation of the line with points (0.0) and (-3,-7) is y = 7/3 * x
What is Coordinate Geometry ?A coordinate system is a method for determining how to position points or other geometrical objects on a manifold, such as Euclidean space, uniquely using one or more integers, or coordinates.
The study of geometry using coordinate points is known as coordinate geometry (also known as analytical geometry). Finding the distance between two points, breaking lines into m:n segments, locating a line's midpoint, computing a triangle's area in the Cartesian plane, and other operations are all feasible using coordinate geometry.
The points are (0,0) and (-3, - 7)
The equation of the line will be
y - 0 = (-7 - 0)/(-3-0) * (x - 0)
⇒y = 7/3 * x
The equation of the line with points (0.0) and (-3,-7) is y = 7/3 * x
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What is 0.35714285714 as a fraction?
Answer:
0.35714285714 as a fraction equals 35714285714/100000000000
Step-by-step explanation:
To write 0.35714285714 as a fraction you have to write 0.35714285714 as numerator and put 1 as the denominator.
Now you multiply numerator and denominator by 10 as long as you get in numerator the whole number.
0.35714285714 = 0.35714285714/1 = 3.5714285714/10 = 35.714285714/100 = 357.14285714/1000 = 3571.4285714/10000 = 35714.285714/100000 = 357142.85714/1000000 = 3571428.5714/10000000 = 35714285.714/100000000 = 357142857.14/1000000000 = 3571428571.4/10000000000 = 35714285714/100000000000
I hope this helps :)
Arlene buys a phone case and charging cord for 15% off. The original price of the charging cord, x. enter the correct answers in the boxes. remember to multiply by the discounted percentage as a decimal. the discount is applied to the sum of the cord and the phone case.
Arlene buys a phone case and charging cord for 15% off
Discount on case and cord = 15%
Original cost of case = $18
Total discount amount = $4.20
Let the original cost of charging cord = x
So, Arlene buys a phone case and charging cord for 15% off = 15% of cost of cord and case
15% of cord and case = 15% of (x + 18)
as the discount amonut ins $18
15% of cord and case = 15% of (x + 18)
15% of cord and case = 4.20
15% of (x + 18) = 4.20
\(\begin{gathered} \text{ 15\% of (x +18) = 4.20} \\ \text{ }\frac{15\times(x+18)}{100}=4.20 \\ 15(x+18)=4.20\times100 \\ 15(x+18)=420 \end{gathered}\)So, the expression is : 15(x + 18) = 420
Simplify the expression for x :
15(x + 18) = 420
15x + 270 = 420
15x = 420 - 270
15x = 150
x = 150/15
x = 10
So, the cost of charging cord is $10
Answer : equation : 15(x + 18) = 420
$10
if a plane is traveling 900km in 3 hours what is its ratio
Answer:
300:1Step-by-step explanation:
900:3 = 300:1
plz follow me
Answer: 300 per hour
Step-by-step explanation:
If 900 is for 3 hours than you got to find the ratio for 1. So just divide 900 by 3 and you get the answer 300. To check your answer multiply 300 by 3 and you get 900. :)
What will be the value stored in the variable x after the execution of the following code snippet?
int a = 10;
int b = 20;
int c = 2;
int x = b / a /*c*/;
a) 1
b) 2
c) 4
d) The code has a syntax error
The value stored in the variable x after the execution of the following code snippet will be b) 2.
The right-click context menu option or a combination of hotkeys can be used to add code snippets, which are compact chunks of reusable code, to a code file. Although try-finally and if-else blocks, for example, are frequently used code blocks found in code snippets, you can also use them to add whole classes or methods.
Learn more about using the templates tool to create reusable emails. Applications and web pages use snippets. Snippets are made to be reusable and to add functionality, like connecting various parts of a program.
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what do you need to add to 3 5/7 to make 6
Assume we have a machine that uses 1 byte for a short int and 2 bytes for an int. What's the decimal value of z after running the following code. short int x = -36; // binary sequence is 11011100 int y = x; unsigned int z = y;
The decimal value of 'z' after running the given code is 220.
The code initializes a short integer 'x' with the value -36, which is represented in binary as 11011100. Since the machine uses 1 byte for a short integer, 'x' is stored using 1 byte.
Then, 'x' is assigned to an integer 'y'. Since 'y' is an int, it uses 2 bytes to store the value. However, the binary representation of -36 (11011100) can be accommodated within the 2 bytes.
Finally, 'y' is cast to an unsigned int 'z'. The cast discards the sign bit, converting the value to its unsigned representation. Since 'z' is unsigned, it also uses 2 bytes to store the value. Therefore, the binary representation of -36 (11011100) is interpreted as a positive value, resulting in the decimal value 220.
In summary, the decimal value of 'z' is 220 because the negative value -36 is represented in binary as 11011100, which is interpreted as a positive value when cast to an unsigned int.
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