Answer:
2/3 did not vote no
Step-by-step explanation:
1/3 voted no
The total is 1
1 - 1/3
3/3 -1/3
2/3 did not vote no
Graph the system of equations. y = 2x y = –x + 6 Two lines on a coordinate plane that intersect at the point 2 comma 4. One line has y intercept 0 and the other has y intercept 6. Two lines on a coordinate plane that intersect at the point negative 2 comma negative 4. One line has y intercept 0 and the other has y intercept negative 6. Two lines on a coordinate plane that intersect at the point 1 comma 2. One line has y intercept 0 and the other has y intercept 3. Two lines on a coordinate plane that intersect at the point 3 comma 3. One line has y intercept 0 and the other has y intercept 6.
The solution to the systems of equations graphically is (2, 4)
Solving the systems of equations graphicallyFrom the question, we have the following parameters that can be used in our computation:
y = 2x
y = -x + 6
Next, we plot the graph of the system of the equations
See attachment for the graph
From the graph, we have solution to the system to be the point of intersection of the lines
This points are located at (2, 4)
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Joan flipped a coin 100 times during a mathematics experiment. The coin landed on tails 36 times. Based on Joan's results, which of these statements is true?
(A)The coin landed on tails more than expected.
(B)The coin landed on heads less than expected.
(C)The coin landed on heads more than tails.
(D)The coin landed on heads less than tails.
value of the 6 in 36,282.563?
Answer:
6,000 or 6 hundredths
Step-by-step explanation:
Find the equation of the line.
Use exact numbers.
Y
Answer:
Y=-1/4X-6
Step-by-step explanation:
y=--1/4X-6
\(y = \frac{ - 1}{4} x - 6\)
A spinner is divided into five sections numbered 1 through 5. Juana records the number the spinner lands on for each of 50 spins. She computes and graphs the relative frequencies for each number. Which of the following describes the probability distribution? A bar graph entitled Relative Frequency of Numbers Spun has x on the x-axis and Probability on the y-axis. The probability of 1 is 0. 5; 2 is 0. 12; 3 is 0. 12; 4 is 0. 12; 5 is 0. 12. Constant symmetric negatively skewed positively skewed.
The distribution of the probability of the given data is a Positive Skewed Probability distribution.
Given to us
A spinner is divided into five sections numbered 1 through 5. Juana records the number the spinner lands on for each of the 50 spins. She computes and graphs the relative frequencies for each number
What is a Probability distribution?It is a type of distribution in which the distribution has a constant probability, therefore, the probability of each event occurring is equal.
What is symmetric distribution?Symmetric distribution is the type of distribution where the left side of the distribution and the right side of the distribution are mirror images to each other, therefore, they are symmetrical.
What is Negatively Skewed Probability distribution?Negatively Skewed Probability distribution is a type of distribution of the probability where the right side(tail) of the distribution is more concentrated than the right side.
What is Positive Skewed Probability distribution?Positive Skewed Probability distribution is a type of distribution of the probability where the left side of the distribution is more concentrated than the right side.
Which of the following describes the probability distribution of the given data?Since in the given graph probability of every number occurring from 2 to 5 is equal to 0.12(12%), while the probability of number 1 occurring is 0.5(50%).
Thus, the distribution of the probability is towards the right end of the graph.
Hence, the distribution of the probability of the given data is a Positive Skewed Probability distribution.
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Answer:b
b b b bb b b b b b b b b b b b b b b b b b b b b b b b b b b b b
Step-by-step explanation:
Which value should she use for X? Round to the nearest hundredth.
0.09
0.20
0.25
0.30
Answer:
A
Step-by-step explanation:
Just took the Semester exam and had this question on it, I got it right
Answer:Person on top is wrong its
Step-by-step explanation:
D =0.30
Making and Interpreting Correlations: Mastery Test
Submit Test
Arrange the graphs in descending order (from highest to lowest) based on the values of their correlation coefficients,
Answer:
Graph D > Graph A > Graph C > Graph B
Step-by-step explanation:
The closer the data points are to each other along the line of best fit, the greater the value of their correlation coefficient, and vice versa.
Therefore, the graphs can be arranged in descending other (from the highest to the lowest) based on the values of their correlation coefficients as follows:
Graph D > Graph A > Graph C > Graph B
Answer:
See image
Step-by-step explanation:
Plato
When we take a census, we attempt to collect data from (a) a stratified random sample. (b) every individual selected in an SRS. (c) every individual in the population. (d) a voluntary response sample. (e) a convenience sample.
Answer:
The answer is "Option C".
Step-by-step explanation:
The census is meant to count a whole population of a nation and the place, where everyone normally lives. It is a statistical method, which analyses all groups or components of its community used then for a specific particular population so not all representatives with this population. It try to collect data from everybody in the community and we're doing a census.
Oliver is 6 more than twice as old as Sam. If Oliver is 21 how old is Sam?
Answer:
Sam is 7 and 1/2 years old.
Step-by-step explanation:
Let Sam be x years old. Then we have the equation:
2x + 6 = 21
2x = 21-6 = 15
x = 7.5.
7½yrs
Step-by-step explanation:
Sam = x
Oliver = 6 + 2x
Sam = (21-6) ÷2
Sam=15÷2
Sam=7½yrs
Are the binary structures U5 and U6(consisting of fifth and sixth roots of unity, re-spectively) isomorphic?
The order of the U5 and U6 is not equal hence isomorphic.
U5 fifth root of unit
U6 sixth root of unit
U5 = { z E c : Z^5 =1 }
= {e ^2ikx : k=0,1,2,,,,n}
U6 = { z E c : Z^6 =1 }
= {e ^2ikx : k=0,1,2,,,,n-1}
U5 = Z5
U6 = Z6
In mathematics, an isomorphism is a structure-preserving mapping between two similar structures that can be reversed by inverse mapping. Two mathematical structures are isomorphic if there is an isomorphism between them.
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which statesmen describes the association between variable X and variable Y?
perfect negative association
perfect positive association
moderate positive association
moderate negative association
Answer:
perfect positive association.
Step-by-step explanation:
A perfect positive association means that a relationship appears to exist between two variables, and that relationship is positive 100% of the time. In statistics, a perfect positive association is represented by the value +1.00, while a 0.00 indicates no association
Work out the surface area of this triangular prism
Answer:
1008 \(cm^2\)
Step-by-step explanation:
Given:
Triangular prism with
Base of triangle = 5 + 9 = 14 cm
Height of triangle = 12 cm
Here, we have 3 faces of the prism as a rectangle, all have width = 20 cm
Lengths of faces = 13cm ,14cm and 15 cm respectively
To find:
Total surface area = ?
Solution:
3 faces are rectangular shape and 2 faces are triangular shape.
\(Area\ of\ rectangle = Length \times Width\)
The formula for Total Surface Area of a triangular prism is given as:
\(TSA = 2 \times \text{Area of triangular base}+{\text{Area of rectangular faces}}\\\Rightarrow TSA = 2 \times \dfrac{1}{2}\times Base \times Height+{\text{Area of rectangular faces}}\\\Rightarrow TSA = 14 \times 12 + 15 \times 20+ 13 \times 20+ 14 \times 20\\\Rightarrow TSA = 168 + 840\\\Rightarrow TSA = 1008\ cm^2\)
So, the total surface area of the given triangular prism is 1008 \(cm^2\).
Solve each equation by completing the square.
x²+8 x+6=0
The solutions to the equation x² + 8x + 6 = 0 are x = -4 + √10 and x = -4 - √10.
To solve the equation by completing the square, we follow these steps:
Move the constant term (6) to the other side of the equation:
x² + 8x = -6
Take half of the coefficient of the x term (8), square it, and add it to both sides of the equation:
x² + 8x + (8/2)² = -6 + (8/2)²
x² + 8x + 16 = -6 + 16
x² + 8x + 16 = 10
Rewrite the left side of the equation as a perfect square trinomial:
(x + 4)² = 10
Take the square root of both sides of the equation:
x + 4 = ±√10
Solve for x by subtracting 4 from both sides:
x = -4 ±√10
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10. Two planes are flying one directly behind the other. Both planes are at an alttude of 1.7 miles. The angle
of depression to the airport from the plane closer to the airport is 58. The angle of depression to the
airport from the plane farther from the airport is 37. What is the distance between the two planes to the
nearest tenth of a mile?
A 1.0
B 23 -
C 12
D Not here
Solve for z:
-21 = 0.07z
z=?
Answer:
z=-300
Step-by-step explanation:
How many solutions does the nonlinear system of equations graphed below have?
Answer:
two
Step-by-step explanation:
solutions are where lines cross
the solutions for this system are (2,0) and (-6,8)
Answer:
2 solutions
Step-by-step explanation:
The solutions are the point(s) of intersection.
By inspection of the graph we can see that line (blue) intersects the parabola (red) at 2 points.
Therefore, the system of equations has 2 solutions.
The sum of twice a number and five is greater than three times the number minus three.
Answer:
x<8
Step-by-step explanation:
2x+5>3x-3
2x+8>3x
8>x
Answer:
n < 8
Step-by-step explanation:
Let n represent the unknown number. Then:
2n + 5 > 3n - 3
Collecting like terms:
8 > n or n < 8
Which function has a domain of {x | x > 8}? f(x) = 1 f(x) = – 1 f(x) = 8 f(x) = – 8
The function that has a domain of {x | x > 8} is f(x) = 1. A domain is the set of all possible input values for a function. In this case, the domain is {x | x > 8}, which means that x can be any number greater than 8.
Looking at the given options, we can see that only the function f(x) = 1 satisfies this condition. For any value of x greater than 8, f(x) will always be equal to 1.
To further illustrate this, let's consider a few examples:
- If x = 9, then f(x) = 1
- If x = 10, then f(x) = 1
- If x = 100, then f(x) = 1
In each case, no matter how large x is as long as it is greater than 8, the function f(x) will always return 1.
Therefore, the function that has a domain of {x | x > 8} is f(x) = 1.
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solve for x 9×(3÷x)=26
The solution to the equation 9 × (3 ÷ x) = 26 is x = 1.038.
To solve the equation 9 × (3 ÷ x) = 26 for x, we can follow these steps:
Simplify the expression on the left side of the equation:
9 × (3 ÷ x) = 26
27 ÷ x = 26
Multiply both sides of the equation by x to eliminate the division:
(27 ÷ x) × x = 26 × x
27 = 26x
Divide both sides of the equation by 26 to solve for x:
27 ÷ 26 = (26x) ÷ 26
1.038 = x
As a result, x = 1.038 is the answer to the equation 9 (3 x) = 26.
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Write this word sentence as an inequality.
A number y is greater than –8 and is at most –7.
Pleaseeee!!! Someone hurry!!!
Answer:
-8<y≤-7
.Step-by-step explanation:
7.99, -7.567854, -7.1, -7, but it COULD NOT be -8.
A length of a ribbon is 3 1/2 ya long. How many pieces 1 5/9 yd long can joy cut from the length of ribbon
Answer:
It’s B)2
Step-by-step explanation:
Because if you divide 3 1/2 x 1 5/9 you get 2.25 so you can cut 2 ribbons to the measurement 1 5/9 and you will have 0.25 of the ribbon left.
A total of 2 pieces of length \($1\frac{5}{9}\) yards can be cut from the ribbon of \($3\frac{1}{2}\) yards long.
What is Division?
Division in maths is the process of breaking a number up into equal parts, and finding out how many equal parts can be made.
Total length of Ribbon = \($3\frac{1}{2}\) = 7/2 yards long.
Length of one piece to be cut = \($1\frac{5}{9}\) = 14/9 yards long
Assume that the total number of pieces that can be cut be x. Then, we can write -
x = Total length / Length of one piece
x = 7/2 ÷ 14/9
x = 7/2 x 9/14
x = 9/4
x = 2.25
x = 2 [for a perfect piece]
Therefore, a total of 2 pieces of length \($1\frac{5}{9}\) yards can be cut from the ribbon of \($3\frac{1}{2}\) yards long.
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help please i don’t understand
Answer:
20/29
Step-by-step explanation:
I hope that this 3 will help you understand easily.
What is the volume of a right prism with height h=14 cm if the base of that prism is △ABC with side AB = 9 cm and the length of the altitude to that side is ha=6 cm
The volume of this right prism is equal to 378 cm³.
Given the following data:
Height = 14 cm.
Altitude (HA) = 6 cm.
Length of side AB = 9 cm.
The volume of a right prism.
Volume = base area × height
Next, we would determine the area of the triangle (∆ABC) at the base of the right prism as follows:
Base area = 1/2 × (9 × 6)
Base area = 1/2 × 54
Base area = 27 cm².
Now, we can calculate the volume of this right prism:
Volume = base area × height
Volume = 27 × 14
Volume = 378 cm³.
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Answer:
The volume of the prism is 378cm^3
Step-by-step explanation:
14x9x6/2 = 378
Jason Pawloski is married and claims 2 allowances. How much is withheld from his weekly paycheck of $550 for the last week of December for social security and Medicare taxes?
The ratio of the distance around a circle, the circumference, to the distance across a circle, the diameter, is represented by the Greek letter a. If the circumference of a circle is 6.28 inches and the diameter of the same circle is 2 inches, what is the approximate value of a to two decimal places?
Answer:
3.14 inches
Step-by-step explanation:
diameter=2inches radius =1
The formula for circumference of a circle with radius r is 2πr.
The formula for the area of a circle with radius r is πr²
π≈3.14
So the radius of our circle is
6.28/2π
≈6.28/2×3.14=1
its area is πr²
≈3.14×1²=3.14
Please help I forgot how to do it :P
Answer:
25%
Step-by-step explanation:
$115 - $92 = $23 (first blank)
To do the fraction it is the new amount/the original amount
23/92
divide 23 and 92
23/92 = 0.25 (second and third blank)
0.25 x 100% = 25%
the average number of phone inquiries per day at the emergency center is four. find the probability that it will receive five calls on a given day.
the probability that the emergency center will receive five calls on a given day is approximately 0.156, or 15.6%.
To find the probability of receiving five calls on a given day at the emergency center, we need to use the Poisson distribution formula:
\(P(x = 5) = (e^{-4})*\frac{(4^5)}{(5!)}\)
Where:
- x = number of phone inquiries
- e = Euler's number (approximately 2.71828)
- ! = factorial (i.e. 5! = 5*4*3*2*1)
Given that the average number of phone inquiries per day is four, we can use that as our lambda (λ) value in the Poisson distribution formula, since lambda represents the mean number of events in a specific time interval:
λ = 4
Now we can substitute these values into the formula and solve:
P(x = 5) = (e^-4)*(4^5)/(5!) = (2.71828^-4)*(1024)/(120) ≈ 0.156
Therefore, the probability that the emergency center will receive five calls on a given day is approximately 0.156, or 15.6%.
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The probability that the emergency center will receive five calls on a given day is approximately 0.1755 or 17.55%.
To find the probability that the emergency center will receive five calls on a given day, given that the average number of phone inquiries per day is four, we can use the Poisson distribution formula.
Identify the average rate (λ): In this case, λ = 4 calls per day.
Identify the desired number of events (k): In this case, k = 5 calls.
Use the Poisson distribution formula: \(P(X = k) = (e^(-λ) \times (λ^k)) / k!\)
e is the base of the natural logarithm (approximately 2.71828)
λ is the average rate
k is the desired number of events
k! is the factorial of k
Plug in the values and calculate the probability:
\(P(X = 5) = (e^{(-4)} \TIMES (4^5)) / 5!\)
\(P(X = 5) = (0.0183 \times 1024) / 120\)
P(X = 5) ≈ 0.1755
So, the probability that the emergency center will receive five calls on a given day is approximately 0.1755 or 17.55%.
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il. Write whether each number is an expression or an equation
11.9k + 8 = 53
12. Op + 4
13. 8w - 5 = 43
14.9 - 3x
15. 7b + 9 2
16. - (0 + 5) = 7 0
17. (5 x 7) - 13
18.6 x 5 = 30
19. (b 15) - 10 = 30
20. 93 - (d xe)
FAKE ANSWER=REPORT
GOOD ANSWER=BRAINLEIST,HEART,LIKE 5
Answer:
An equation is expressed or defined by an equals to sign (i.e. =).
Thus,
11 - is an equation.
12 - is an expression.
13 - is an equation.
14 - is an expression.
15 - is an expression.
16 - is an equation.
17 - is an expression.
18 - is an equation.
19 - is an equation.
20 - is an expression
Consider a shipment of 10 bags of cement, which are supposed to weigh 200lb each. The sample average weight of the 10 bags is 198.5lb with a sample standard deviation 1.65lb. (a) Suppose that the 10 weighs can be viewed as a realization of a random sample from a normal distribution with unknown parameters. Construct a two-sided 95% CI for the expected weight of a bag. (b) Based on these data, how many bags would you need to sample to make a two-sided 90% CI that is 0.45lb wide? (c) Suppose that you actually do obtain the required number of bags calculated in part (b) and construct a new CI. Is it guaranteed to be at most 0.45lb wide?
(a) A two-sided 95% confidence interval for the expected weight of a bag is (195.9lb, 201.1lb). (b) To make a two-sided 90% CI that is 0.45lb wide, we would need to sample 15 bags.
(a) The standard error of the mean is given by the sample standard deviation divided by the square root of the sample size, i.e. 1.65lb / sqrt(10) = 0.521lb.
A two-sided 95% confidence interval is given by the sample mean plus or minus 1.96 times the standard error, i.e. 198.5lb +/- 1.96 * 0.521lb. This gives a confidence interval of (195.9lb, 201.1lb).
(b) A two-sided 90% confidence interval that is 0.45lb wide has a margin of error of 0.225lb. To find the sample size needed to achieve this margin of error, we use the formula
n = (z * s / E)^2
where z is the appropriate z-score for the desired confidence level (1.645 for 90%), s is the sample standard deviation, and E is the desired margin of error. Plugging in the numbers, we get n = (1.645 * 1.65lb / 0.45lb)^2 = 15.
(c) The width of a confidence interval depends on both the sample size and the variability of the data. While sampling 15 bags is expected to result in a 90% confidence interval that is 0.45lb wide, there is no guarantee that the interval will be exactly this width.
It is possible that the sample standard deviation could be larger or smaller than the one observed in the original sample, which would affect the width of the interval. However, the larger sample size does increase the likelihood that the interval will be close to the desired width.
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I need help on this asap!
1. What information do you need to classify Quadrilateral EFGH as a square?
2. On Quadrilateral EFGH, draw a Right Triangle EFR such that EF is the
hypotenuse. Use the Pythagorean Theorem to determine the length
of EF.