Using limits and numeric value, we have that lim x -> 0 f(f(x)) is closest to:
c. 3.
What is f(f(x))?f(f(x)) is a composite function, hence:
For x = a, first we calculate the numeric value at x = a.Then we calculate the numeric value at x = f(a).What is a limit?A limit is the value that a function f(x) tends as x tends to a value. It there are no undetermined values, we can just verify the numeric value from the graph, but with undetermined values, there are multiple things to look at.
For this function, looking at the graph, we have that:
f(0) = 2, as when x = 0, f(x) = 2.Thus, lim x -> 0 f(f(x)) = lim x - > 2 f(x), because f(0) = 2.Both to the left of x = 2 and to the right of x = 3, from the graph, f(x) approaches 3, hence lim x - > 2 f(x) = 3.This means that option c is the closest approximation for the limit of the function.
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Karen wants to estimate the mean number of siblings for each student in her school. She records the number of siblings for each of 200 randomly selected students in the school. What is the sample?
The sample is 200 randomly selected students.
The following things should be considered:
Let us assume the no of siblings for each student be x.Now for determining the mean no of siblings she choose 200 students.So, here the sample should be 200 randomly selected students.
Therefore the other options should be incorrect.
Thus we can conclude that the sample is 200 randomly selected students.
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Can someone give me the answer to this pls?
Answer: x= -3
Step-by-step explanation:
1) Set up the equation with triangle sum
35 + x + 58 + 90 = 180
2) Solve
183 + x = 180
x = -3
Alice went to the movie with 2 of her friends and spent $10.50. 30% of the total wad spent on movie snacks. Which proportion could be used to calculate the total amount that Alice spent on movie snacks?A. 30/100 = x/10.5B. 30/100 = 10.5/ xC. 10.5/100 = 30/xD. x/100 = 10.5/30
Alice spend a total of $10.50, and the 30% of total was spent on snacks.
So, if we call x the money spent on snacks we have that the ratio between x and total spent money is 30%:
\(\frac{x}{10.5}=\frac{30}{100}\)Can someone please help me with this???
Brainlyest if you help me.
Find the value of the following expression:
(28 • 5–5 • 190)–2 • (the image is in the file) • 228 (5 points)
Write your answer in simplified form. Show all of your steps. (5 points)
Answer:
\(\left(\dfrac{5^{-2}}{2^3}\right)^4\)
\(\dfrac{\left(5^{-2}\right)^4}{\left(2^3\right)^4}\)
\(\dfrac{\left(5^{-8}\right)}{\left(2^{12}\right)^}\)
\(\dfrac{\dfrac{1}{390625}}{4096}\)
\(\dfrac{1}{390625} *\dfrac{1}{4096}\)
\(\dfrac{1}{1600000000}\)
\(\left\mathrm{In \ decimal \ or \ standard \ form :\quad }\:6.25E-10\right\)
\(\large\tex\text{Given expression:} \huge\tex\text{[}\dfrac{5^{-2} }{2^{3} } \huge\tex\text{]}^{4}\)
Since the exponents inside the brackets do not have any relation (Not through bases, nor through exponents), we will need to simplify the exponents.
1. Simplifying the exponents inside the bracket:
\(\bullet \ \rightarrow \huge\tex\text{[}\dfrac{5^{-2} }{2^{3} } \huge\tex\text{]}^{4}\)
\(\bullet \ \rightarrow \huge\tex\text{[}\dfrac{\frac{1}{5^{2} } }{2 \times 2 \times 2} \huge\tex\text{]}^{4}\)
\(\bullet \ \rightarrow \huge\tex\text{[}\dfrac{\frac{1}{25 } }{8} \huge\tex\text{]}^{4}\)
2. Opening the brackets:
\(\bullet \ \rightarrow \huge\tex\text{[}\dfrac{\frac{1}{25 } }{8} \huge\tex\text{]}^{4}\)
\(\bullet \ \rightarrow \huge\tex\text{[}\dfrac{\frac{1^{4} }{25^{4} } }{8^{4} } \huge\tex\text{]}\)
\(\bullet \ \rightarrow \dfrac{\frac{1^{4} }{25^{4} } }{8^{4} }\)
3. Simplifying the exponents:
\(\bullet \ \rightarrow \dfrac{\frac{1^{4} }{25^{4} } }{8^{4} }\)
\(\bullet \ \rightarrow \dfrac{\dfrac{1}{390625 } }{4096}\)
\(\bullet \ \rightarrow {\dfrac{1}{390625 } \times \dfrac{1}{4096}\)
\(\bullet \ \rightarrow \boxed{\bold{\dfrac{1}{1600000000} }}\)
9. determine whether the following polynomials span 2 . p1 = 1 − x 2x 2 , p2 = 3 x, p3 = 5 − x 4x 2 , p4 = −2 − 2x 2x 2
Yes, these polynomials span P2. To determine whether the given polynomials span P2, let's begin by defining what P2 is. P2 is a vector space of all polynomials of degree 2 or less. Therefore, for a set of polynomials to span P2, any polynomial of degree 2 or less in P2 should be possible to write as a linear combination of these polynomials.
Now, let's see if the given set of polynomials p1, p2, p3, and p4 span P2. We need to check if any polynomial of degree 2 or less can be expressed as a linear combination of these polynomials. That is, suppose we have a polynomial p(x) of degree 2 or less in P2, and we want to express it as a linear combination of p1, p2, p3, and p4.
Then, we need to find scalars a, b, c, and d such that:p(x) = a*p1(x) + b*p2(x) + c*p3(x) + d*p4(x)If we can find such scalars for any polynomial of degree 2 or less, then p1, p2, p3, and p4 span P2. Otherwise, they do not.
Let's start by substituting each of the given polynomials into the above equation:p(x) = a*(1-x^2-2x^2) + b*(3x) + c*(5-x-4x^2) + d*(-2-2x^2)Simplifying this expression gives p(x) = (a-2d)*x^2 + (-c+b)*x + (a+5c-2d). We now have a polynomial of degree 2 or less that can be expressed as a linear combination of p1, p2, p3, and p4.
Therefore, these polynomials span P2.
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calculate the expected value of the sample mean of mpg derived from a random sample of four passengers
The expected value of the sample mean of mpg derived from a random sample of four passengers is 30.5 mpg.
The expected value of the sample mean can be calculated using the formula
E(x) = μ
where x is the sample mean, and μ is the population mean.
In this case, the population mean is given as 30.5 mpg. The standard deviation of the population is also given as 4.1 mpg.
The standard deviation of the sample mean can be calculated using the formula
σx = σ/√n
where σ is the population standard deviation and n is the sample size.
Substituting the given values, we get:
σx = 4.1/√4 = 2.05
So the expected value of the sample mean is
E(x) = μ = 30.5 mpg.
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The question in the image
Please help me
Step-by-step explanation:
10+X = 5+14
So,
10+X=19
X=19-10
X= 9
Use the drawing tools to form the correct answer on the number line.
Graph the solution to this inequality on the number line.
20 - 6 > -16 and 3.0 -10 < 8
Answer:
-19Step-by-step explanation:
34. What is the smallest subset containing 100 ?
A. Irrational Numbers
B. Whole Numbers
C. Natural Numbers
D. Rational Numbers
2. Suppose you have a data set of 7 numbers. If the constant 5 is added to each value in the set, what happens to the mean? What happens to the standard deviation?
3. There is a chowder eating contest in a small New England town. The distribution of the amount of chowder consumed is bell-shaped with mean 32 ounces and variance 64 ounces. If two hundred people participated in the contest, find the following.
a. The number of people who consumed between 24 and 40 ounces of chowder.
b. The number of people who consumed between 16 and 40 ounces of chowder.
If the constant 5 is added to each value in a data set, the mean of the data set increases by 5, and the standard deviation remains the same. This is because adding a constant to each value in the data set shifts the distribution of the data to the right, but it does not change the spread of the data.
What are the responses to other questions?(a) The number of people who consumed between 24 and 40 ounces of chowder can be found by finding the area under the standard normal curve that corresponds to these values and multiplying it by the number of people. To find this area, we need to find the standard scores (z-scores) corresponding to 24 and 40 ounces and then use a table of the standard normal distribution to find the area.
The mean and standard deviation of the distribution are 32 ounces and 8 ounces, respectively. The standard score corresponding to 24 ounces is (24-32)/8 = -1, and the standard score corresponding to 40 ounces is (40-32)/8 = 1. The area under the standard normal curve between -1 and 1 is approximately 0.6826. So, approximately 68.26% of the people consumed between 24 and 40 ounces of chowder.
So, the number of people who consumed between 24 and 40 ounces of chowder is 200 * 0.6826 = 136.52, or approximately 136 people.
(b) To find the number of people who consumed between 16 and 40 ounces of chowder, we can repeat the same process. The standard score corresponding to 16 ounces is (16-32)/8 = -2, and the standard score corresponding to 40 ounces is (40-32)/8 = 1. The area under the standard normal curve between -2 and 1 is approximately 0.8365. So, approximately 83.65% of the people consumed between 16 and 40 ounces of chowder.
So, the number of people who consumed between 16 and 40 ounces of chowder is 200 * 0.8365 = 167.3, or approximately 167 people.
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Which of the following is not a solution to the inequality
4x + 1 ≤ 18
A. 4
B. 4.23
C. 4.25
D. 4.27
Answer: A 4
step by step explmationn
Answer:
C. 4.25
Step-by-step explanation:
You would want to subtract the one so you could subtract it to 18 then divide 4 by 17 to get 4.25
There are 24 red roses and 36 white roses in the bouquet. what is the ratio of red roses to white roses
Answer:
the required ratio is :
24 : 34 = 2 : 3
Answer:
2 : 3
Step-by-step explanation:
The ratio
red roses : white roses
= 24 : 36 ← divide both parts of the ratio by 12
= 2 : 3 ← in simplest form
Does someone mind helping me with this problem? Thank you!
Based on the use of substitution, The answer will be: (x, y) = (1, -2)
What is the substitution about?3x - 4y = 11
y + 3x = 1
Step 1: Solve one of the equations for one of the variables.
Let's solve the second equation for y:
y = -3x + 1
Step 2: Substitute this expression for y into the first equation:
3x - 4(-3x + 1) = 11
3x - (-12x + 4) = 11
3x + 12x = 15
15x = 15
x = 1
Step 3: Substitute this value of x back into one of the original equations to find the value of y:
y = -3(1) + 1 = -2
The solution is (x, y) = (1, -2)
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See transcribed text below
Solve the system using substitution.
3x-4y = 11 y + 3x = 1
([?], [_])
Enter
PLZ HELP 1000 POINTS AND BRAINLIEST
Not letting me add the answer pls refer to the attachment
Answer:
lol
Step-by-step explanation:
A cylinder has a base radius of 7 in and a height of 20 in. What is its volume in cubic
in, to the nearest tenths place?
Answer: 3078.8
Step-by-step explanation:
if a cylinder has a base radius of 7 in and a height of 20 in then the volume is 3077.2 cubic inches.
What is Three dimensional shape?a three dimensional shape can be defined as a solid figure or an object or shape that has three dimensions—length, width, and height.
Given that cylinder has a base radius of 7 in and a height of 20 in
We have to find the volume of the cylinder
V=πr²h
Radius = 7
Height =20
Volume =3.14×7²×20
=3.14×49×20
=3077.2 cubic inches.
Hence, if a cylinder has a base radius of 7 in and a height of 20 in then the volume is 3077.2 cubic inches.
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What is the slope of the line that contains these points? (-7,21) (-6,17) (-5,13) (-4,9)
Answer:
-4
any more help just ask :)
what is summer academy help fr fr ☝️
Answer:
Summer school (or summer university) is a school, or a program generally sponsored by a school or a school district, or provided by a private company, that provides lessons and activities during the summer vacation.
Step-by-step explanation:
Answer:
Step-by-step explanation:
are and homogeneous coordinates for the same point in ? why or why not?
No, Euclidean coordinates and homogeneous coordinates are not the same thing for the same point in space. Let's see how are they different in this brief discussion below. What are homogeneous coordinates? Homogeneous coordinates are utilized to explain geometry in projective space. Homogeneous coordinates are often used since they can express points at infinity. Homogeneous coordinates are three-dimensional coordinates used to extend projective space to include points at infinity. How are homogeneous coordinates and Euclidean coordinates different?Homogeneous coordinates utilize four variables to define a point in space while Euclidean coordinates use three variables. Points in Euclidean geometry have no "weights" or "scales," while points in projective geometry can be "scaled" to make them homogeneous. Hence, Euclidean coordinates and homogeneous coordinates are not the same thing for the same point in space.
Homogeneous coordinates and Cartesian coordinates are not the same point.
The following are the reasons behind it:
Homogeneous coordinates :Homogeneous coordinates are a set of coordinates in which the value of any point in space is represented by three coordinates in a ratio, which means that the first two coordinates can be increased or decreased in size, but the third coordinate should also be changed proportionally.
So, in short, these are different representations of the same point. Homogeneous coordinates are used in 3D modeling, computer vision, and other applications.
Cartesian coordinates: Cartesian coordinates, also known as rectangular coordinates, are the usual (x, y) coordinates.
These coordinates are widely used in mathematics to explain the relationship between geometric shapes and points. These are the coordinate points that we use in our daily lives, such as identifying the location of a particular spot on a map or finding the shortest path between two points on a coordinate plane.
The two-dimensional (2D) or three-dimensional (3D) points are represented by Cartesian coordinates.
Hence, it can be concluded that Homogeneous coordinates and Cartesian coordinates are not the same point, and these are different representations of the same point.
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Hitler traveled 75 kilometers in 90 minutes. If he travels at the same speed, how
many kilometers would Hitler cover in 30 minutes?
A.20
B.24
C.25
D.30
Step-by-step explanation:
You can make a ratio. Put the first part of the question together and put the second part together.
\( \frac{75}{90} = \frac{x}{30} \)
Next we cross multiply
\((75)(30) = 90x\)
\(2250 = 90x\)
Lastly we divide by 90
\(x = 25\)
Two television stations are running the same advertisement. One television stations runs the advertisement eveey 24 minutes and the other television station runs the advertisement every 18 minutes. Both stations have the advertisement on right now. How many minutes until both stations will have the advertisement on again at the same time?
Answer:
72 minutes
Step-by-step explanation:
Given that:
Advert runs on :
Station 1 : every 24 minutes
Station 2 : every 18 minutes
Both have the advert running presently ; How many minutes until both stations will have the advertisement on again at the same time?
To obtain the time the advert will run again at the same time on both stations, we find the Lowest common factor of 24 and 18
_2__24 ____18
_2__12_____9
_2__6_____ 9
_3__3 _____9
_3__1_____ 3
____1_____1
2 * 2 * 2 * 3 * 3 = 72
After 72 minutes
numeric prefixes are used to name select one compounds. they are not used for select one compounds, but the charges must select one .
Greek number prefixes are employed in the naming of molecular (covalent) substances.
Greek number prefixes are employed in the naming of molecular (covalent) substances. Prefixes are always combined in order of size (left-to-right in the table below). For instance, "heptadecatetracta" (7 + 10 + 400) would be the prefix for the number 417.
We utilise prefixes (mono-, di-, tri-, etc.) at the beginning of each element in molecular compounds to denote the element's subscript, but we only use the prefix mono- for the compound's second element.
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what is the equation of the line that passes through the point (7,-3)
Answer:
Step-by-step explanation:
Im not sure dowload the app caculator online its free and it does ur homework
no need for explanation just answer
Answer:
19
Step-by-step explanation:
Ciara measured the length, x, of each of the insects she found underneath a rock. She recorded the lengths in the table below. Calculate an estimate of the mean length of the insects she found. Give your answer in millimetres (mm). Length (mm) 0≤x≤10 10≤x≤20 20≤x≤30 Frequency 5 6 9
The estimate of the mean length of the insects Ciara found is 17 millimeters (mm).
To calculate an estimate of the mean length of the insects Ciara found, we need to find the weighted average of the lengths using the given frequencies.
Let's denote the lower limits of the length intervals as L1 = 0, L2 = 10, and L3 = 20.
Similarly, denote the upper limits as U1 = 10, U2 = 20, and U3 = 30.
Next, we calculate the midpoints of each interval by taking the average of the lower and upper limits.
The midpoints are M1 = (L1 + U1) / 2 = 5, M2 = (L2 + U2) / 2 = 15, and M3 = (L3 + U3) / 2 = 25.
Now, we can calculate the sum of the products of the frequencies and the corresponding midpoints.
This gives us (5 \(\times\) 5) + (6 \(\times\) 15) + (9 \(\times\) 25) = 25 + 90 + 225 = 340.
Next, we calculate the sum of the frequencies, which is 5 + 6 + 9 = 20.
Finally, we divide the sum of the products by the sum of the frequencies to find the weighted average, which is 340 / 20 = 17.
Therefore, the estimate of the mean length of the insects Ciara found is 17 millimeters (mm).
Thus, the mean length of the insects Ciara found is approximately 17 millimeters (mm).
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What is the measure of angle B, m
Answer:
70 degrees
Opposite angles are equal to each other
discrete math Work Problem Work Problem (15 pts) Let S(n) be
1/1.4 + 1/4.7 + + 1/(3n-2) (3n+1) = n/(3n+1)
Verify S(3)
The value of S(3) can be determined by substituting n = 3 into the equation S(n) = n/(3n+1). By doing so, we obtain S(3) = 3/(3*3+1) = 3/10.
To verify the equation S(n) = n/(3n+1), we need to evaluate S(3).
In the given equation, S(n) represents the sum of a series of fractions. The general term of the series is 1/[(3n-2)(3n+1)].
To find S(3), we substitute n = 3 into the equation:
S(3) = 1/[(33-2)(33+1)] + 1/[(34-2)(34+1)] + 1/[(35-2)(35+1)]
Simplifying the denominators:
S(3) = 1/(710) + 1/(1013) + 1/(13*16)
Finding the common denominator:
S(3) = [(1013)(1316) + (710)(1316) + (710)(1013)] / [(710)(1013)(13*16)]
Calculating the numerator:
S(3) = (130208) + (70208) + (70130) / (71010131316)
Simplifying the numerator:
S(3) = 27040 + 14560 + 9100 / (710101313*16)
Adding the numerator:
S(3) = 50600 / (710101313*16)
Calculating the denominator:
S(3) = 50600 / 2872800
Reducing the fraction:
S(3) = 3/10
Therefore, S(3) = 3/10, confirming the equation S(n) = n/(3n+1) for n = 3.
the process of verifying the equation by substituting the given value into the series and simplifying the expression.
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Shania bought a $1,972 drum set on the installment plan. The installment agreement included a 20% down payment and 36 monthly payments of $52. 04 each. What is the finance charge?.
Shania bought a $1,972 drum set on the installment plan. The installment agreement included a 20% down payment and 36 monthly payments of $52.04 each. So the finance charge is $295.84.
In the given question, Shania bought a $1,972 drum set on the installment plan.
The installment agreement included a 20% down payment and 36 monthly payments of $52.04 each.
We have to find the finance charge.
Down payment = 20% of drum value
Down payment = $1972 * 20%
Down payment = $394.4
Total amount of monthly payments = one month payment * Number of months
Total amount of monthly payments = $52.04 * 36
Total amount of monthly payments = $1873.44
Amount Shania will pay for drum set = down payment + total monthly payments
Amount Shania will pay for drum set = $394.4 + $1873.44
Amount Shania will pay for drum set = $2267.84
Finance charge = Total payment under installment plan - cost of drum set Finance charge = $2267.84 - $1972
Finance charge = $295.84
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this is what truthfully struggle with can someone explain how i do this please then imma try it on my own
4 EZ GEOMETRY QUESTIONS FOR 20 POINTS!
Answer:
1. use the formula
\((n-2)180\)
\((20 - 2)180\\18 * 180 = 3240\)
2. use the formula
\(360/n\\360/12\\n = 30\)
3. There is only one at 360 degrees
4. there are 6 rotational symmetries and the number of reflectional symmetries would be 6 as you can see:
ons belo Situation Cone Diagrams 6 in need to be placed on the boxes. 1. Dylan used a styrofoam cone to make a floral arrangement. The cone had a radius of 4.5 Inches and a height of 6 inches. What is the volume of this cone? 4.5 in Shane used day to make a cone with a height of 6 inches and a diameter of 4.5 inches for a sculpture. What is the volume of this cone? 4.5 in 6 in. Jake made a wooden cone with a diameter of 6 inches and a height of 4.5 inches. What is the volume of this cone? Grace made a cone for her sand castle with a radius of 6 inches and a height of 4.5 Inches. What is the volume of this cone? 6 in Type here to search ה 7 4:27 PM 10/6/2020
Answer
Check Explanation
Explanation
The volume of cone is given as
Volume of a cone = ⅓ (πr²h)
where
r = radius of the cone
h = height of the cone
also note that radius of a cone = ½ (Diameter of the cone)
1) Dylan's cone
Radius = 4.5 inches
Height = 6 inches
Volume = ⅓ (πr²h)
= ⅓ (π × 4.5² × 6)
= ⅓ (381.7035)
= 127.23 in³
2) Shane's cone
Radius = ½ (Diameter of the cone)
Diameter of the cone = 4.5 inches
Radius = ½ (4.5) = 2.25 inches
Height = 6 inches
Volume = ⅓ (πr²h)
= ⅓ (π × 2.25² × 6)
= ⅓ (95.426)
= 31.81 in³
3) Jake's cone
Radius = ½ (Diameter of the cone)
Diameter of the cone = 6 inches
Radius = ½ (6) = 3 inches
Height = 4.5 inches
Volume = ⅓ (πr²h)
= ⅓ (π × 3² × 4.5)
= ⅓ (127.2345)
= 42.41 in³
4) Grace's cone
Radius = 6 inches
Height = 4.5 inches
Volume = ⅓ (πr²h)
= ⅓ (π × 6² × 4.5)
= ⅓ (508.938)
= 169.65 in³
Hope this Helps!!!