ΔABC and ΔDCB would be congruent triangles by the AAS postulate.
What is congruent geometry?In congruent geometry, the shapes that are so identical. can be superimposed on themselves.
Here,
In a square, all sides are equal in length and all angles are right angles (90 degrees). Additionally, the diagonal of a square bisect each other at 90 degrees.
The lengths of AB, BC, CD, and DA are equal.
The angles ABC and CDA are both right angles (90 degrees).
The angles BAC and DCB are both 45 degrees.
So ΔABC and ΔDCB became congruent triangles by the AAS postulate.
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Run tests can reveal non-random patterns in the time-ordered data. Select 4 patterns that might be seen.
- Points outside limits
- Trend
- Scatter Plot
- Cycles
- Too much dispersion
- Bias
If we run tests that can reveal non random patterns in the time ordered data , then the four patterns that might be seen are : Points outside limits , Trend , Cycles and Bias .
The four patterns that might be seen in run tests which can reveal non-random patterns in time-ordered data are:
(i) Points outside limits: This pattern indicates that the data points fall outside of the control limits and suggests that the process is not in statistical control.
(ii) Trend: This pattern indicates that the data points are moving consistently in a particular direction, either increasing or decreasing over time.
(iii) Cycles: This pattern indicates that the data points are oscillating around a central value over time, with a repeated pattern of highs and lows.
(iv) Bias: This pattern indicates that the data points are consistently above or below the centerline over time, indicating a systematic error or shift in the process.
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Which relationship represents an example of mutualism? A a lynx hunting a snowshoe hare B an owl and a snake feeding on rats C a tapeworm absorbing nutrition from the intestines of a host organism D an ant colony living on an acacia tree and not allowing vines to grow on the bark
The scenerio that represents an example of mutualism would be an ant colony living on an acacia tree and not allowing vines to grow on the bark. That is option D.
What is mutualism?Mutualism is defined as the feeding relationship where by the both organisms which are involved work together to benefit from each other.
A typical example of mutualism is the relationship that exists between the ant and the acacia tree.Here, the ant colony living on an acacia tree and not allowing vines to grow on the bark shows that both organisms benefits from each other.
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Find the following probabilities based on a standard normal variable Z. Use Table 1. (Round your answers to 4 decimal places.)
a. P(Z > 0.74) b. P(Z ≤ −1.92) c. P(0 ≤ Z ≤ 1.62) d. P(−0.90 ≤ Z ≤ 2.94)
a. 0.7787; b. 0.0228; c. 0.7453; d. 0.9793. The probabilities are found by looking up the Z-value in Table 1 and finding the corresponding probability.
a. To find the probability that Z is greater than 0.74, we look up 0.74 in Table 1 and find the corresponding probability. The probability that Z is greater than 0.74 is 0.7787, which is the area to the right of the Z-value in the table.
b. To find the probability that Z is less than or equal to −1.92, we look up −1.92 in Table 1 and find the corresponding probability. The probability that Z is less than or equal to −1.92 is 0.0228, which is the area to the left of the Z-value in the table.
c. To find the probability that Z is between 0 and 1.62, we look up 0 and 1.62 in Table 1 and find the corresponding probabilities. The probability that Z is between 0 and 1.62 is 0.7453, which is the area between the two Z-values in the table.
d. To find the probability that Z is between −0.90 and 2.94, we look up −0.90 and 2.94 in Table 1 and find the corresponding probabilities. The probability that Z is between −0.90 and 2.
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For the data in the following sample: 10, 6, 8, 6, 5 find the mean
Answer:
7
Step-by-step explanation:
To find the mean of a set of numbers, we add up all the numbers and divide the sum by the total number of numbers.
For the given sample, we have:
10 + 6 + 8 + 6 + 5 = 35
There are 5 numbers in the sample, so we divide the sum by 5:
35 / 5 = 7
Therefore, the mean of the sample is 7.
Find the distance between A and B
Answer:
[tex]C. \ \sqrt{58}.[/tex]
Step-by-step explanation:
1) coordinates of the given points are: A[-3;2] and B[4;-1];
2) the required distance can be calculated using the next formula:
[tex]d=\sqrt{(X_A-X_B)^2+(Y_A-Y_B)^2} ;[/tex]
3) according to the folmula above the required distance is:
[tex]d=\sqrt{(-3-4)^2+(2--1)^2} =\sqrt{49+9} =\sqrt{58} .[/tex]
Combine like terms: 5x2 - 4x
The collection of the like terms of the equation 5x^2 - 4x + 9x^2 + 2x can be expressed as 14x^2 - 2x .
How can the factorization be performed?The concept here is collecting the like terms, Algebraic expressions can be made simpler by combining like terms. Combining similar phrases is another name for it. In order to accomplish this, we locate similar terms in an algebraic equation and combine them by either adding or subtracting.
To collect like terms, add up the quantities of the same thing. The sales of various sizes of the same article of clothing, such as a jumper, will be added up by a buyer.
5x^2 - 4x + 9x^2 + 2x
=5x^2 + 9x^2 - 4x + 2x
=14x^2 - 2x
Therefore, option C is correct.
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Two buckets, each with a different volume of water, start leaking water at the same time, but at different rates. Assume the volumes are changing linearly.
The difference between the starting volumes is 200 milliliters, the first bucket has the larger volume.
What is the difference between the starting volumes?We know that the volumes can be modeled by linear equations, and remember that a general linear equation is:
y = a*x + b
Where a is the slope and b is the initial value.
If the line passes through two points (x₁, y₁) and (x₂, y₂), then the slope is:
a = (y₂ - y₁)/(x₂ - x₁)
For the first bucket we have the points (1, 2900), (10, 2000), then the slope is:
a = (2000 - 2900)/(10 - 1) = -900/9 = -100
So we can write:
y = -100*x + b
To find the value of b, we can replace the value of one of the points in the equation. I will use the first point (1, 2900)
2900 = -100*1 + b
2900 + 100 = b
3000 = b
Now for the other bucket, we have the points (1, 2725) and (10, 2050), so the slope is:
a = (2725 - 2050)/(10 - 1) = -75
So this line is:
y = -75*x + b
Again, replacing the values of one of the points we will get:
2725 = -75*1 + b
2725 + 75 = b
2800 = b
Then the difference in the starting volumes is:
3000 - 2800 = 200
The first bucket has 200 milliliters more.
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A potato head comes with 12 noses, 20 sets of eyes, 5 lips, and 30 accessories. How many arrangements can be made with 1 of each piece?
The number of different arrangements is 36,000
How many arrangements can be made with 1 of each piece?This is equivalent to the total number of combinations, it is given by the product between the numbers of options.
The numbers of options are:
12 for the noses
20 for the eyes
5 for the lips
30 accessories.
Then the number of different arrangements is:
N = 12*20*5*30 = 36,000
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- A local college will construct a 2-floor building next
year. Each of the 5 classrooms on the 1st floor will
have 20 seats, and each of the 8 classrooms on the
2nd floor will have 35 seats. To comply with the 2010
ADA standard, what is the fewest total number of
wheelchair spaces needed in the 13 classrooms?
F. 4
G. 6
H. 11
J. 13
K. 21
Answer:
According to the 2010 ADA standard, the number of wheelchair spaces required in a classroom depends on the total number of seats in the classroom. Specifically, 1 wheelchair space is required for the first 25 seats, and an additional wheelchair space is required for each 25 seats thereafter.
For the 5 classrooms on the 1st floor, there are a total of 5 x 20 = 100 seats. Therefore, we need 1 wheelchair space for the first 25 seats, and 1 additional wheelchair space for the next 25 seats. So in total, we need 2 wheelchair spaces for the 1st floor classrooms.
For the 8 classrooms on the 2nd floor, there are a total of 8 x 35 = 280 seats. Therefore, we need 1 wheelchair space for the first 25 seats in each classroom, and an additional wheelchair space for the next 25 seats. This means that each classroom needs 2 wheelchair spaces. So in total, we need 8 x 2 = 16 wheelchair spaces for the 2nd floor classrooms.
Therefore, the total number of wheelchair spaces needed in all 13 classrooms is 2 + 16 = 18.
However, it's important to note that the question asks for the "fewest total number" of wheelchair spaces needed. Since we can't have a fraction of a wheelchair space, we need to round up to the nearest whole number. Therefore, the answer is 18 rounded up to the nearest whole number, which is 19.
So the correct answer is not one of the options given. The closest option is K. 21, but that is too high.
Suppose you are given a rectangular prism with dimensions a, b, and c. Which of the following corresponds to the quantity 2a 2c? A. the rate of change of the volume with respect to a B. the rate of change of the volume with respect to b C. the rate of change of the surface area with respect to a D. the rate of change of the surface area with respect to b E. the rate of change of the surface area with respect to c
The quantity 2a 2c corresponds to the rate of change of the surface area with respect to a. So, Correct option is C.
When considering a rectangular prism with dimensions a, b, and c, there are three different measures that we can associate with the dimensions: the length, width, and height. These measures are important in determining both the volume and the surface area of the prism.
In this problem, we are given a quantity 2a 2c and asked to determine which measure of the rectangular prism it corresponds to. We can do this by considering the formulas for the volume and surface area of the prism, and taking the partial derivatives with respect to each of the three dimensions.
The volume of a rectangular prism is given by:
V = abc
Taking the partial derivative of this expression with respect to a, we get:
[tex]\frac {\partial v} {\partial a}[/tex] = bc
This is not equal to 2a 2c, so we can eliminate the possibility of the quantity corresponding to the rate of change of the volume with respect to a.
Taking the partial derivative of the volume with respect to b and c gives:
[tex]\frac {\partial v} {\partial b}[/tex] = ac
[tex]\frac {\partial v} {\partial c}[/tex] = ab
Again, neither of these expressions is equal to 2a 2c, so we can eliminate the possibilities of the quantity corresponding to the rate of change of the volume with respect to b or c.
Next, we can consider the surface area of the prism, which is given by:
A = 2ab + 2ac + 2bc
Taking the partial derivative of this expression with respect to a, we get:
[tex]\frac {\partial v} {\partial a}[/tex] = 2b + 2c
Substituting 2a 2c for 2b + 2c, we get:
[tex]\frac {\partial A} {\partial a}[/tex] = 2a 2c
This is the same expression as the given quantity, so we can conclude that the quantity 2a 2c corresponds to the rate of change of the surface area with respect to a.
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When simplifying an expression like (x2yz4)5 , what should you do with the little 5 on the outside is the parentheses?
Question 3 options:
Distribute it to all variables by dividing their exponents
Distribute it to all variables by multiplying their exponents
Distribute it to all variables by adding their exponents
Distribute it to all variables by subtracting their exponents
Answer:
B
Step-by-step explanation:
Answer:
B: Distribute it to all variables by multiplying their exponents
Step-by-step explanation:
Use what you know about zeros of a function and end behavior of a graph to choose the graph that matches the function f(x)=(x-3)(x-1)(x+1).
The graph of the function f(x)=(x-3)(x-1)(x+1) is given by the image presented at the end of the answer.
How to construct the graph of the function?The function for this problem is defined as follows:
f(x)=(x-3)(x-1)(x+1).
The product is written as a product of it's linear factors, hence the x-intercepts are given as follows:
x = 3.x = 1.x = -1.The y-intercept of the function is given as follows:
f(0) = -3(-1)(1) = 3.
The end behavior is given as follows:
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he probability distribution of x, the number of defective tires on a randomly selected automobile checked at a certain inspection station, is given in the following table.
x 0 1 2 3 4
p(x) .55 .16 .07 .06 .16
(a) Calculate the mean value of x.
?x =
(b) What is the probability that x exceeds its mean value?
P (x > ?x) =
(A) The mean value of x is 1.12.
(B) The probability that x exceeds its mean value is 0.22.
The first answer is:
(a) To calculate the mean value of x, we multiply each possible value of x by its corresponding probability and add up the products. Mathematically, we can write:
x = (0 * 0.55) + (1 * 0.16) + (2 * 0.07) + (3 * 0.06) + (4 * 0.16)
x = 0 + 0.16 + 0.14 + 0.18 + 0.64
x = 1.12
Therefore, the mean value of x is 1.12.
(b). P (x >? x) = P (x > 1.12)
To find this probability, we need to add up the probabilities of all values of x that are greater than 1.12. From the table, we can see that the probabilities for x = 3 and x = 4 are both greater than 1.12. Therefore, we can write:
P (x > 1.12) = P (x = 3) + P (x = 4)
P (x > 1.12) = 0.06 + 0.16
P (x > 1.12) = 0.22
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If a trend line has equation y = 0.0001x + 12, what could you say about the data?
The statement about the data the points appear to be on a straight line
How to determine the statement about the dataFrom the question, we have the following parameters that can be used in our computation:
Equation of a trend line: y = 0.0001x + 12
The above equation is a linear equation
This implies that the data points represented by the equation would appear to be on a straight line
Note that: The points may or may not be on a perfect straight line depending on the correlation value
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Yall please help fast Veronica went on three hikes. On each hike, she saw the following numbers of animals:
Hike Length of hike
(
km
)
(km)left parenthesis, start text, k, m, end text, right parenthesis Number of animals seen
Rivers Edge
3
33
8
88
Wooded Marsh
8
88
24
2424
Canyon Creek
15
1515
35
3535
Veronica tried to order the hikes from least to greatest by the number of animals seen per kilometer, but she made a mistake. Here's her work:
Choose 1 answer:
WILL GIVE ALL MY PONITS
Answer:
Veronica's attempt at ordering the hikes from least to greatest by the number of animals seen per kilometer is not correct.
To order the hikes by the number of animals seen per kilometer, we need to calculate the number of animals seen per kilometer for each hike. We can do this by dividing the number of animals seen by the length of the hike in kilometers.
Using this method, we can calculate the number of animals seen per kilometer for each hike as follows:
Rivers Edge: 8/3 = 2.67 animals/km
Wooded Marsh: 24/8 = 3 animals/km
Canyon Creek: 35/15 = 2.33 animals/km
Based on these calculations, the correct order of the hikes from least to greatest by the number of animals seen per kilometer is Rivers Edge, Canyon Creek, Wooded Marsh.
Veronica's mistake appears to be that she simply ordered the number of animals seen in each hike from least to greatest, rather than calculating the number of animals seen per kilometer.
ASAV ANSWER PLAZ HELP
Answer:
man female women man women male female measurement measurement master mysteries milkman milkmaid monk non Mr Mrs nephew nice papa
Sketch line where slope should intercept.
The graph of the linear equation is on the image at the end.
How to sketch the linear equation?Here we have the following linear equation:
y = (7/3)*x + 5
To graph that line we need to find two points on the line, to get them, we need to evaluate the line in two different values of x.
if x = 0
y = (7/3)*0 + 5 = 5
if x = 3
y = (7/3)*3 + 5 = 12
Then we have the points (0, 5) and (3, 12)
Now just graph these points and connect them with a line.
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Find the indicated IQ score. The graph to the right depicts IQ scores of adults, and those scores are normally distributed with a deviation of 15.
The shaded area is 0.2525
The IQ score of the adult is 110.05.
What is Normal Distribution?A normal distribution in statistics is defined as the type of continuous probability distribution where the data are arranged in a symmetrical bell shaped graph.
Given that,
Area to the right of a normally distributed graph is 0.2525.
From the standard table, z score for the area given is 0.67.
z = 0.67
We have the formula,
z = (x - μ) / σ
Given Mean, μ = 100 and standard deviation, σ = 15
0.67 = (x - 100) / 15
x - 100 = 10.05
x = 110.05
Hence the indicated IQ score is 110.05.
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Nick can invest $10,000 in either one of two annuities. Annuity A has a 6% annual interest rate and requires a starting principal of $9,000, plus annual $100 deposits for the next 10 years. Annuity B has a 12% annual interest rate and requires a starting principal of $9,000, plus annual $200 deposits for the next 5 years.
What is the difference between the final balances of the two annuities?
Answer:
7.95%
An annuity due is an annuity whose payment is due immediately at the beginning of each period. A common example of an annuity due payment is rent, as landlords often require payment upon the start of a new month as opposed to collecting it after the renter has enjoyed the benefits of the apartment for an entire month.
Answer:
$313.57
Step-by-step explanation:
Compound interests and and compound numbers need:
A base number (starting amount) Multiplier (percentage) And power (time period)This means the original amount is multiplied in the first example by 106%, and the product of that is multiplied by 106%, until its done 10 times for 10 years.
Bank À is best
1.
A worker uses 4 gray tiles for every 5 blue tiles that he uses.
If he uses 60 gray tiles, how many blue tiles does he use?
b. If he uses 540 tiles altogether, how many gray tiles does he use?
Answer:
240
Step-by-step explanation:
60/ 4=15
15×5=75
b) 4+5=9
540/9=60
4×60=240
The sum of the series
1+7+3+10+5+13+7+16+..... to 30 terms is :
Answer:
please type your questions well
A total of 3 ft falls over 3 days. On the first day, 1/6 of the total rain falls. On the second day, 7/12 of the total rain falls. How much rain falls each day in inches? Show your work. Please help.
Answer:
Day 1: 6 inches
Day 2: 21 inches
Day 3: 9 inches
Step-by-step explanation:
First, we need to convert the total rainfall from feet to inches. Since 1 foot is equal to 12 inches, 3 feet is equal to 36 inches.
On the first day, 1/6 of the total rainfall falls, so:
(1/6) * 36 = 6 inches
On the second day, 7/12 of the total rainfall falls, so:
(7/12) * 36 = 21 inches
To find the rainfall on the third day, we can subtract the rainfall on the first and second days from the total rainfall:
36 - 6 - 21 = 9 inches
Therefore, the amount of rainfall on each day, in inches, is:
Day 1: 6 inches
Day 2: 21 inches
Day 3: 9 inches
anthony goes to the library every 4th day, and giovani goes to the library every 6th day . when will they go on the same day? (from applepie's little brother)
Anthony and Giovani will both go to the library on the same day every 12th day.
What is ratio?The ratio can be defined as the number that can be used to represent one quantity as a percentage of another. Only when the two numbers in a ratio have the same unit can they be compared. Ratios are used to compare two objects.
To find out when both Anthony and Giovani will go to the library on the same day, we need to find the smallest number that is divisible by both 4 and 6.
We can start by listing the multiples of 4 and 6 until we find a common multiple:
Multiples of 4: 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, ...
Multiples of 6: 6, 12, 18, 24, 30, 36, 42, ...
We see that 12 is the smallest common multiple of 4 and 6.
Therefore, Anthony and Giovani will both go to the library on the same day every 12th day.
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The heights of the 228 men who filled out Survey 1 last semester follow the normal curve fairly closely with an average of about 70.5" and a SD of about 2.5 ".
What percent of the students are over 71.5 "?
Do the problem in steps
First convert 71.5 " to a z score.0.40 tries 0/5In the problem above you were given the height and asked to find the percentile. Now, you'll be going in the opposite direction-- you'll be given the percentile (placement on the normal curve) and asked to find the height. In both cases the first step is to find the z-score.
If someone is in the 92 th percentile in height (i.e., is taller than 92 % of the other males in the class), let's work on finding his height. First we'll find the z score.
(Do NOT look up the z score for Area= 92 % on the table b/c the Areas given on the table are MIDDLE areas. 92 th percentile means 92 % to the LEFT, and 8 % in the right tail.)
What is the Z-score corresponding to the middle area?(If the middle area falls between two lines on the table, you may use the closest one. Put Z-score in blank below.)
Now change the z score to a height. (Remember the z score tells how many SD's the value is from the average. So a z score of 2 means the person is 2 SDs above average which would be 2*(2.5") + 70.5".)
What is his height?
The male in the 92nd percentile in height would be 73.75 inches tall.
To find the z-score corresponding to the 92nd percentile, we need to find the value on the standard normal curve such that 92% of the area is to the left of that value.
Using the standard normal table, we can find the z-score closest to 0.92 which is 1.75.
Now that we have the z-score, we can use the following formula to find the height:
height = z-score * standard deviation + average height
So, using the given values of average height (70.5") and standard deviation (2.5"):
height = 1.75 * 2.5 + 70.5
height = 73.75"
Therefore, a male in the 92nd percentile in height would be 73.75 inches tall.
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suppose you throw five dice and all outcomes are equally likely. (a) what is the probability that all dice are the same? (in the game of yahtzee, this is known as a yahtzee.) 1/6^5
The probability of getting the same outcome on all five dice is (1/6) x (1/6) x (1/6) x (1/6) x (1/6) = 1/6^5, or approximately 0.00077.
The probability that every one of the five dice show a similar result is equivalent to the probability of obtain a particular result on one pass on, increased by the probability of come by similar result on every one of the leftover four dice.
The probability of obtain a particular result on one pass on is 1/6, since there are six potential results (1, 2, 3, 4, 5, or 6) and they are similarly probable.
In this manner, the probability of obtain similar result on each of the five dice is (1/6) x (1/6) x (1/6) x (1/6) x (1/6) = 1/6^5, or roughly 0.00077.
This is the probability of moving a Yahtzee in a solitary throw of five dice, it are similarly prone to expect all results.
The probability of moving a Yahtzee, which is the point at which each of the 5 dice show a similar number, is determined by duplicating the probability of come by a particular result on one bite the dust (1/6) without help from anyone else multiple times. This gives a probability of 1 in 6^5, or roughly 0.00077.
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The amount of time it takes to finish a race might be a function of which of the following?
A. the entry fee of the race
B. the distance of the race
C. the number of people involved in the race
Answer:
b
Step-by-step explanation:
time debends in how long it going to take the longer the race the longer the time
A rock is thrown upward with a velocity of 22
meters per second from the top of a 45
meter high cliff, and it misses the cliff on the way back down. When will the rock be 9
meters from ground level? Round your answer to two decimal places.
Gravity Formula
The rock will be 9 meters from ground level at a time of:
x = 5.76 seconds.
How to model the situation?The quadratic function that models a projectile's height is given as follows:
y = -4.9t² + v(0)t + h(0)
In which:
v(0) is the initial velocity.h(0) is the initial height.The parameters for this problem are given as follows:
v(0) = 22, h(0) = 45.
Hence the height function is given as follows:
y = -4.9t² + 22t + 45.
The rock is 9 meters from ground level when:
9 = -4.9t² + 22t + 45.
-4.9t² + 22t + 36 = 0
4.9t² - 22t - 36 = 0.
Hence the discriminant is given as follows:
D = 22² - 4(4.9)(-36)
D = 1189.6.
The positive root, representing the time for the height of 9 meters, is given as follows:
x = (22 + sqrt(1189.6))/9.8
x = 5.76 seconds.
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Find the measure of an
exterior angle of a regular
polygon with 36 sides.
[?]°
Enter
Answer:
The measure of an exterior angle of a regular polygon with n sides is given by the formula:
360°/n
For a regular polygon with 36 sides, the measure of each exterior angle is:
360°/36 = 10°
Therefore, the measure of an exterior angle of a regular polygon with 36 sides is 10°.
Step-by-step explanation:
Indentify any vertical asymptotes and holes of f(x)= x^2+6x+9/x^2-9
The vertical asymptote of the function [tex]f(x) = \frac{x^2 + 6x + 9}{x^2 - 9}[/tex] is at x = 3.
What is an asymptote?Asymptote is a line or curve that serves as the boundary of another line or curve in mathematics.
Given, A function [tex]f(x) = \frac{x^2 + 6x + 9}{x^2 - 9}[/tex].
Factoring the numerator and the denominator we have,
[tex]f(x) = \frac{(x+3)(x+3)}{(x+3)(x-3)}[/tex]
Now, The holes of the function are at [tex]f(x) = \frac{(x+3)}{(x-3)}[/tex], x + 3 = 0, x = - 3.
And the asymptote of the function is at x - 3 = 0, x = 3.
Therefore, The asymptote will be a dotted vertical line at x = 3.
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please help
the numbers of hours that you study each day for five days are shown in the table. The mean amount of time that you study each day of the week is 2.5 hours. How many total hours do you study on Friday and Saturday?
The total hours you study on Friday and Saturday is ; 3 hours
It is easy to calculate the Mean of a data table and we do this by Adding up all the numbers, then divide by how many numbers there are.
From the table, we are given number of hours spent for 5 days as;
Sunday = 0.75 hours
Monday = 1.5 hours
Tuesday = 0 hours
Wednesday = 2.5 hours
Thursday = 1 hour
Thus, if average for the week of 7 days is 1.25 and total for Friday and Saturday is x, then we have;
(0.75 + 1.5 + 0 + 2.5 + 1 + x)/7 = 1.25
x + 5.75 = 8.75
x = 8.75 - 5.75
x = 3 hours
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