Answer:
Not a function
Step-by-step explanation:
If we use the vertical line test, we can get an answer quite easily. If a vertical line is moved across the graph and, at any time, touches the graph at only one point, then the graph is a function.
If we were to move a vertical line across the above graph, it would touch two places, so therefore it is not a function.
Student A has one more than three times as many absences as Student B. Student A has seven absences. Which equation will help us find the number of absences that Student B has?
3 a – 1 = 7
3 a + 1 = 7
a/3 -1 =7
a/3+1=7
The equation for the number of absences of student B is:
7 = 1 + 3b
And the solution is b = 2.
How many absences does student B has?We know that student A has one more than 3 times as many absences as student B.
So if we define the variables:
a = absences of student A
b = absences of student B.
Then we can write the equation:
a = 1 + 3b
Now we know that student A has 7 absences, then:
a = 7
Replacing that in the linear equation we get:
7 = 1 + 3b
solving this for b we get:
7 - 1 = 3b
6/3 = b
2 = b
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In 2012 there were approximately 8950 public libraries in the United States. A survey found that 76% of those libraries offered free access to electronic books. Based on this information, how many public libraries offered free access to electronic books in 2012?
Answer:
6802 libraries
Step-by-step explanation:
8950 x 0.76
hope this helps
Find the value of x in the isosceles triangle shown below
Answer:
the value of x is 8
x=8
HOPE IT'S HELP
PLEASE HELPP SORRY ABT THE WRITING
Using relevant theorems the measures are:
1. x = 61°; y = 61° 2. x = 12; y = 7 3. x = 5; y = 13
4. x = 97°; 5. x = 6 6. x = 9
How to Find the Values of x and y Using Theorems?1. x = 61° [based on the vertical angles theorem]
y = 61° [based on the corresponding angles theorem]
2. 8x = 96 [based on the corresponding angles theorem]
x = 96/8
x = 12
8x = 11y + 19 [based on the vertical angles theorem]
Plug in the value of x:
8(12) = 11y + 19
96 = 11y + 19
96 - 19 = 11y
77 = 11y
77/11 = y
y = 7
3. 8x + 2 = 42 [based on the alternate interior angles theorem]
8x = 42 - 2
8x = 40
x = 40/8
x = 5
8x + 2 + [6(2y - 3)] = 180 [based on the linear angles theorem]
8(5) + 2 + 12y - 18 = 180
40 + 12y - 16 = 180
24 + 12y = 180
12y = 180 - 24
12y = 156
y = 156/12
y = 13
4. x = 97° [corresponding angles theorem]
5. 8x = 4x + 24 [based on the alternate exterior angles theorem]
8x - 4x = 24
4x = 24
x = 6
6. 11x + 33 + 6x - 6 = 180
17x + 27 = 180
17x = 180 - 27
17x = 153
x = 9
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Find the Distance between points A and B: A (8, 12) B: (2, 4)
what element is defined by the following information? p = 17 n° = 20 e- = 17
The element defined by the given information p = 17 n° = 20 e- = 17 is Chlorine (Cl).
An atom consists of protons, neutrons, and electrons. The atomic number of an element corresponds to the number of protons present in the nucleus of an atom. Hence, the atomic number (p) of the given element is 17. A neutral atom contains an equal number of protons and electrons.
Therefore, the number of electrons (e-) of the given element is 17 as well. The number of neutrons (n°) can be calculated as the difference between the atomic mass number (A) and the atomic number (p).
In the case of the given element, the atomic number is 17, and the atomic mass number is 37 (as chlorine has two stable isotopes of mass numbers 35 and 37). Hence, n° = 37 - 17 = 20. Therefore, the element defined by the given information p = 17 n° = 20 e- = 17 is Chlorine (Cl).
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Help please ASAP
9) The shape is made up of a three-quarter-circle
and a square. Find its perimeter.
a. 46.73 cm
b. 47.82 cm
c. 48.91 cm
d. 49.00 cm
3.2.PS-10
Investors buy a studio apartment for 240,000. Of this amount, they have a down payment of 60,000. Their down payment is what percent of the purchase price? What percent of the purchase price would a $84,000 down payment be?
Answer: 5
Step-by-step explanation:
I need help with this please help me i got it wrong
It's a glitch I believe (screenshot and contact your teacher)
find the hypotenuse: c =
Indian River State Collge has stated in the 2019-2020 academic year 44% of its students were first
generation college students.
Suppose you take a random sample of 5 IRSC students and ask if they are first generation college student
or not, counting the number of first generation students. Use this experiment to answer the following
questions. Round solutions to four decimal places, if necessary
a. The binomial probability distribution table is: x P(x) 0 0.4415 1 0.4215 2 0.1209 3 0.0159 4 0.0009 5 0.0000. b. The mean of the binomial distribution is 0.7 and c. the standard deviation of the binomial distribution is 0.887.
a. To create a binomial probability distribution table, we need to identify the values of n, p, and x.
n = 5 (since we are taking a sample of 5 students)
p = 0.14 (the probability of a student being first-generation)
x = 0, 1, 2, 3, 4, 5 (the number of first-generation students in the sample)
Using the formula for the probability mass function of a binomial distribution, P(x) = nCx * p^x * (1-p)^(n-x), we can calculate the probabilities for each value of x:
x P(x)
0 0.4415
1 0.4215
2 0.1209
3 0.0159
4 0.0009
5 0.0000
So, the binomial probability distribution table is:
x P(x)
0 0.4415
1 0.4215
2 0.1209
3 0.0159
4 0.0009
5 0.0000
b. The mean of a binomial distribution is given by the formula:
μ = n * p
Substituting the values, we get:
μ = 5 * 0.14 = 0.7
So, the mean of the binomial distribution is 0.7.
c. The standard deviation of a binomial distribution is given by the formula:
σ = sqrt(n * p * (1-p))
Substituting the values, we get:
σ = sqrt(5 * 0.14 * (1-0.14)) = 0.887
So, the standard deviation of the binomial distribution is 0.887
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Complete question:
Indian River State Collge has stated in the 2019-2020 academic year 14% of its students were first-generation college students.
Suppose you take a random sample of 5 IRSC students and ask if they are first-generation college students or not, counting the number of first-generation students. Use this experiment to answer the following questions. Round solutions to four decimal places, if necessary.
a. Create a binomial probability distribution (table) for this experiment.
b. Calculate the mean of the binomial distribution.
c. Calculate the standard deviation of this binomial distribution.
Given the geometric sequence 42,16.8,6.72 find the next term
Answer:
I don't know
Step-by-step explanation:
because I don't understand which value it T1, T2, T4 etc
equation y = (2x)/(x-1), how do I get -0.5 as the x intercept ???
Answer:
( 0,0) is the x intercept
Step-by-step explanation:
y = (2x)/(x-1),
To find the x intercept set y = 0 and solve for x
0 = (2x)/(x-1)
Multiply by x-1 on each side assuming x does not equal 1
0 = 2x
x = 0
The x intercept is 0
( 0,0) is the x intercept
show that if λ is an eigenvalue of a and x is an eigenvector belonging to λ. show that for m ≥ 1, λ m is an eigenvalue of am and x is an eigenvector of am belonging to λ m.
If λ is an eigenvalue of matrix A and x is the corresponding eigenvector, then for any positive integer m, λ^m is an eigenvalue of A^m, and x is the corresponding eigenvector of A^m.
Let λ be an eigenvalue of matrix A with eigenvector x. This means that Ax = λx. Now, consider the matrix A^m, where m is a positive integer. By multiplying both sides of the eigenvector equation by A^(m-1), we have A^(m-1)Ax = A^(m-1)(λx), which simplifies to A^mx = λA^(m-1)x.
Since A^mx = (A^m)x and A^(m-1)x = λ^(m-1)x, we can rewrite the equation as (A^m)x = λ^(m-1)(Ax). Using the initial eigenvector equation Ax = λx, we have (A^m)x = λ^(m-1)(λx), which further simplifies to (A^m)x = λ^m x.
Therefore, we have shown that if λ is an eigenvalue of A with eigenvector x, then for any positive integer m, λ^m is an eigenvalue of A^m with the same eigenvector x. This result demonstrates the relationship between eigenvalues and matrix powers, illustrating that raising the matrix to a power corresponds to raising the eigenvalue to the same power while keeping the eigenvector unchanged.
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Which graph has a domain that is All Real Numbers?
Answer:
First option (the parabola)
Step-by-step explanation:
Notice that in a circle, ellipse, or hyperbola, there are restricted domains and ranges. Therefore, it has to be the parabola.
Please help me I don’t understand this
Find the unit rate of the following:
(miles per hour)
22.75 miles in 3.5 hours =
Answer:
The unit rate is 6.5mph or 6.5 miles per hour.
Step-by-step explanation:
22.75/3.5 = 6.5
What is the zero of r(x) = 8/3x - 16
Answer:
x=1/6
Step-by-step explanation:
Plug in 0 for r(x)0 = 8/3x - 1616 = 8/3x16(3x)=83x=8/163x=1/2x=1/6The midday temperature, in Celsius degrees (°C), on four successive days is 1.5, -2.6, – 3.4 and 0.5. Calculate the mean temperature.
thanks for anyone who helped <3
Answer:
-1 C
Step-by-step explanation:
Mean = Average
To find the mean simply add all the values and then divide that by the number of given values
So first add the 4 values together
1.5 + -2.6 + -3.4 + .5 = -4
Then divide the sum by the number of values ( there are 4 values )
-4 / 4 = -1
The mean temperature is -1
You combine 12 ounce of the mix with 36 ounces of water. What is a unit rate that describes your juice?
The unit rate that describes the juice mixture is 1 part mix to 3 parts water. This means that for every 1 ounce of the mix, 3 ounces of water are added.
To determine the unit rate, we consider the ratio of the mix to the water. In this case, we combine 12 ounces of the mix with 36 ounces of water. The ratio of the mix to the water is 12:36.
To simplify the ratio, we divide both the numerator and denominator by their greatest common factor, which is 12. Dividing 12 by 12 gives 1, and dividing 36 by 12 gives 3.
Therefore, the simplified ratio is 1:3. This means that for every 1 ounce of the mix, 3 ounces of water are added, resulting in a unit rate of 1 part mix to 3 parts water.
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One tub of dried cranberries costs $4. How many tubs can you buy for $12?
Answer:
3
Step-by-step explanation:
girl honestly how does this question even come up
anyways you do 12 divided by 4 to get 3
t/f) the estimated p-hat is a random variable. with different samples, we will get slightly different p-hats. true false
True, the estimated p-hat is a random variable and will vary slightly with different samples.
The estimated p-hat is the proportion of successes in a sample, used to estimate the population proportion. As it is calculated based on a sample, the p-hat will vary slightly with different samples. This is because each sample is unique and may not perfectly represent the population. Therefore, the estimated p-hat is considered a random variable. However, as the sample size increases, the variability in the p-hat decreases, leading to a more accurate estimate of the population proportion.
In summary, the estimated p-hat is a random variable and will vary slightly with different samples. It is important to consider the sample size when interpreting the variability of the p-hat and its accuracy in estimating the population proportion.
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Noah drew a pentagon with sides of length 1 inches. He wants to increase the length of each side by x inches so the pentagon is still a pentagon and has a perimeter of 25 inches.
The value of x that will give a perimeter of 25 inches is 4 inches
How to find the value of x that will give a perimeter of 25 inches?
The perimeter of a pentagon is the sum of the lengths of all its sides. The formula to calculate the perimeter of a pentagon is:
P = 5L
where is the side length
Initially, the sides of length, L is 1 inches
Now, we increase L by x and perimeter is 25 inches. Thus, can write:
25 = 5(1 + x)
25 = 5 + 5x
5x = 25 - 5
5x = 20
x = 20/5
x = 4 inches
Therefore, the value of x is 4 inches
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Given that 32 √ 2 = 2ª, find the value of a.
The value of 'a' in the given expression is 11/2.
Elaborate about the square root.The square root formula can be used to calculate the square root of any number. The square root of any number is the value that, when multiplied by itself, yields the original number. Each number has two square roots, one positive and the other negative. For example, the number four has two square roots, -2 and 2.
Given \($32 \sqrt{2}=2^a$\)
We can write 32 as:
32 = 2 × 2 × 2 × 2 × 2
32 = \(2^{5}\)
We can write \($\sqrt{2}=2^{1 / 2}$\).
Now,
\($$\begin{array}{r}32 \sqrt{2}=2^a \\2^5 \cdot 2^{1 / 2}=2^a \\2^{5+1 / 2}=2^a \\2^{1 / 2}=2^a \\\end{array}$$\)
Therefore, the value of a = 11/2.
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kyle has a deck of cards numbered 1-10. He randomly picks one card, replaces it and then shuffles the cards. He repeats this two more times. What is the probability kyle picks the cards 5,5, and 5
No Links
Can someone explain how to do these thx
Answer:
i have made it in above picture
hope it helps
4x−3/2 - 5-2x/3 - 3x-4/3 = 5
Answer:
Simplify the expression.
2x-47
=6
Step-by-step explanation:
Answer:
x= -8.5
Step-by-step explanation:
combine like terms1/3x - 47/6 =5
2. Get x onone side
1/3x = -17/6
3. Multiply for x
x= -8.5
What value of y satisfies the system of equations below?
2x - y = 6
2x + 3y = 14
Answer: y=2
Step-by-step explanation:
2x+3y=14 - 2x-y=6 = 4y=8
y=2
If you need x, just insert y into the equation and work out x from there
2x-2=6
2x=8
x=4
A survey asked 1,200 students which movie genre was their favorite. The results of the survey are shown in the circle graph.
Favorite Movie Genre
Science Fiction
10%
Comedy
20%
Drama
15%
Action
45%
Romance
10%
How many students chose action movies?
Answer:
Step-by-step explanation:
The number of the students chose action movies, is 4
What is survey?A survey is a list of questions aimed for extracting specific data from a particular group of people. Surveys may be conducted by phone, mail, via the internet, and also at street corners or in malls
Given that, a survey asked 1,200 students which movie genre was their favorite.
We need to find that how many students chose action movies,
There are 45 % of the students watched the same genre,
Therefore, the number of the students chose action movies, =
45 / 1200 x 100
= 3.75
≈ 4
Hence, the number of the students chose action movies, is 4
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Find the area of hexagon DEFGHI.
Step-by-step explanation:
Break it up into two trapezoids as shown
area = trap1 + trap2
= 2 * (7+3) / 2 + 3 * ( 7 + 3) / 2 = 10 + 15 = 25 units^2