one-sided limits of a function f(x) at x = 1 is lim x → 2[f(x) - f(2)]/(x - 2) = 20
Since function f(x) = 5(x² - 1) and we want to find its derivative, we can proceed thus.
Let x = h + 2
So,
f(x) = 5(x² - 1)
f(2) = 5[(2)² - 1]
= 5[4 - 1]
= 5(3)
= 15
f(2 + h) = 5[(2 + h)² - 1)
= 5(4 + 4h + h² - 1)
= 5(3 + 4h + h²)
= 15 + 20h + 5h²
So, f(2 + h) - f(2) = 15 + 20h + 5h² - 15
= 20h + 5h²
So, we have that
[f(2 + h) - f(2)]/h = (20h + 5h²)/h
= 20 + 5h
Now, taking the limit as h → 0, we have
= 20 + 5(0)
= 20 + 0
= 20
So, lim h → 0[f(2 + h) - f(x)]/h = lim x → 2[f(x) - f(2)]/(x - 2) = 20
So, lim x → 2[f(x) - f(2)]/(x - 2) = 20
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What values complete each statement? Enter your answers in the boxes. (Square root 9)^2
Answer:
Step-by-step explanation:
( 9^2 ) = 23
please someone help me with this its due in 2 hours
Answer:
Step-by-step explanation:
I don't know what you want to find but
CB ^2 = AC^2 + AB^2 -2AC.AB.Cos(BAC) Cosine Rule
CB^2 = 9 +64 - 2.3.8.Cos(40)
CB ~ 6
$1274 divided by $6,50
can sb help this is due tmw
Therefore , the solution of the given problem of linear equation comes out to be she took 3 days , 5 days and 7 days respectively.
A linear equation is what, exactly?The formula y=mx+b serves as the basis for a linear curve of regression. m is the y-intercept, while B is the slope. Despite the fact that y and y are independent elements, the preceding sentence is usually referred to as a "math equation with two variables." Bivariate linear equations have just two variables in them. Application problems involving linear equations have no known solutions.
Here,
Given :
y= total days
where x is the days she took to do the assignments
=> y = 2x + 3
At x = 0.
=> y = 2(0) + 3 = 3
At x = 1
=> y = 2(1) + 3 = 5
At x =2
=> y = 2(2) + 3 = 7
Therefore , the solution of the given problem of linear equation comes out to be she took 3 days , 5 days and 7 days respectively.
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please please please
i have literally been working on this all day :(
Let ak =2ak-1 + 3^k with the starting value a1 = 5. What is the solution of this recurrence relation?
(a) It has no solution.
(b) ak = (2^k-1) + 3^k
(c) ak = (3^k+1) + 2^k +1
(d) ak = 2(k -1) + 3^k
(e) ak = 2(k - 1) + 3k
The solution to the given recurrence relation is (c): ak = (3^k + 1) + 2^k + 1
The solution of the given recurrence relation can be found by substitution. We can substitute the given formula for ak into the equation for a_(k+1) and see if the two are equal. If they are equal, then we have the solution.
Starting with the equation for ak:
a_k = 2a_(k-1) + 3^k
Substituting the formula for ak-1:
a_k = 2(2a_(k-2) + 3^{k-1}) + 3^k
Expanding the right side:
a_k = 4 a_(k-2) + 2 * 3^{k-1} + 3^k
Continuing this process, we can see that the solution is:
a_k = 2^(k) a₀ + (2^{k-1} + 2^{k-2} + ... + 2^1) * 3^{k-1} + 3^k
Since the series 2^k-1 + 2^{k-1} + ... + 2^1 = 2^k - 1, we have:
a_k = 2^(k) a₀ + (2^k - 1) * 3^{k-1} + 3^k
Substituting the initial value a₀ = 5:
a_k = 2^(k) * 5 + (2^k - 1) * 3^{k-1} + 3^k
Simplifying:
a_k = 2^{k} (5 + 3^{k -1}) - 3^{k-1}(1 + 3)
a_k = 2^{k} (5 + 3^{k -1}) - 4* 3^{k-1}
a_k = 5* 2^{k} + 3^{k -1}( 2^{k} - 4)
So, the solution to the given recurrence relation is (c):
ak = (3^k + 1) + 2^k + 1
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which statement best explain the relationship between numbers divisable by 9 and 3
Answer/Step-by-step explanation:
All numbers that are divisible by 9 are also divisible by 3.
Since 3 goes into 9, if 9 is a factor, 3 is also a factor.
Example:
81 is divisible by 9.
So, 81 is also divisible by 3.
Another example:
1,273,050 is divisible by 9.
So 1,273,050 is also divisible by 3.
But the other way around is not necessarily true. If 3 goes into a number, 9 may or may not go into the number.
That is, if a number is divisible by 3, you cannot necessarily know that it is divisible by 9.
Example (seems like it works):
18 is divisible by 3. 18 is also divisible by 9.
But it doesn't work every single time so it cannot be a rule.
Example(sometimes it doesn't work):
24 is divisible by 3.
24 is not divisible by 9.
Solve x2 - 16x + 60 = -12 by completing the steps.Next, add___to each side of the equation to complete the square.
To complete the square for the equation x2 - 16x + 60 = -12, add 64 to each side of the equation. This will give us x2 - 16x + 124 = 52.
Then, factor out the coefficient of x2 (1) and the coefficient of x (16). This will give us (x - 8)2 = 52. Finally, subtract 52 from both sides to get (x - 8)2 = 0. Solving for x yields x = 8.
Equations are mathematical statements that express the equality of two expressions. They involve one or more unknowns that are represented by variables and involve numbers, constants, and operators. An equation states that the expressions on either side of the equal sign have the same value.
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for both categorical and numerical variables, what is the difference between the relative frequency and the percent frequency?
for both categorical and numerical variables the difference between the relative frequency and the percent frequency is option B: The percent frequency equals the relative frequency multiplied by 100.
What is the frequency about?Relative frequency and percent frequency are two measures of the frequency of an event or category within a data set.
Relative frequency is the ratio of the number of times an event or category occurs divided by the total number of events or categories.
Percent frequency is the relative frequency expressed as a percentage. This means that it is equal to the relative frequency multiplied by 100. In other words, the percent frequency represents the proportion of occurrences of an event or category as a percentage of the total number of events or categories.
So, the difference between relative frequency and percent frequency is that relative frequency is a ratio, while percent frequency is the same ratio expressed as a percentage.
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See full question below
for both categorical and numerical variables what is the difference between the relative frequency and the percent frequency?
-The relative frequency equals the percent frequency multiplied by 100.
-The percent frequency equals the relative frequency multiplied by 100.
-As opposed to the relative frequency, the percent frequency is divided by the number of observations in the data set.
-As opposed to the percent frequency, the relative frequency is divided by the number of observations in the data set.
Find the 12th term of the geometric sequence 2, 10, 50, ...2,10,50,...
Store Price of Paint
1. Home Depot $14.98 per gallon (Container 1)
2. Lowes $115.00 per gallon (Container 2)
1. Write the rate for each container:
Container 1: ____________ Container 2: ___________
2. Write the unite rate for each container:
Container 1: ___________ Container 2: ___________
3. What does the unite rate tell you for each container from Home Depot and Lowes?
Container 1: The unit rate for Container 1 from Home Depot is $14.98 per gallon. Container 2: The unit rate for Container 2 from Lowes is $115.00 per gallon. The unit rate for each container tells us how much one gallon of paint costs from each store.
What does the unite rate tell you for each container from Home Depot and Lowes?The unit rate for the paint from Home Depot is $14.98 per gallon and the unit rate for the paint from Lowes is $115.00 per gallon. This tells us that the paint from Home Depot is cheaper than the paint from Lowes.
Step 1: To calculate the rate for each container, divide the cost of the container by the number of gallons in the container.
Container 1: $14.98 per gallon = $14.98 / 1 gallon
Container 2: $115.00 per gallon = $115.00 / 1 gallon
Step 2: To calculate the unit rate for each container, divide the cost of the container by the number of units in the container.
Container 1: $14.98 per gallon = $14.98 / 1 unit
Container 2: $115.00 per gallon = $115.00 / 1 unit
Step 3: The unit rate for each container tells us how much one gallon of paint costs from each store.
Container 1: The unit rate for Container 1 from Home Depot is $14.98 per gallon.
Container 2: The unit rate for Container 2 from Lowes is $115.00 per gallon.
The theory used in this question is the concept of unit rate, which is used to compare the prices of different products.
Unit rate is defined as the cost per unit of measure (e.g., price per gallon, price per pound, etc.).
In this case, we are using the unit rate of price per gallon to compare the prices of paint from Home Depot and Lowes.
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x-y is greater than or equal to 3, x+y is equal to or less than 9. Graph the solution of the system of linear inequalities. (and fill in)
The graph of the system of inequalities x-y≥3 and x+y≤9 is attached.
What is Graph?Graph is a mathematical representation of a network and it describes the relationship between lines and points.
A relationship between two expressions or values that are not equal to each other is called 'inequality.
x-y is greater than or equal to 3, x+y is equal to or less than 9
x-y≥3
x+y≤9
Combine the intervals
x≥3 and x≤9
Now merge the overlapping intervals
3≤x≤9
Hence, the graph of the system of inequalities x-y≥3 and x+y≤9 is attached.
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Find the Volume.
Pls i need this answer its for a grade
In Princeton's wig shop, 1/4 of the wigs are blonde and 2/3 of the wigs are brunette. What fraction of the wigs are either blonde or brunette?
Answer:
In Princeton's wig shop, the total number of wigs is the sum of the number of blonde wigs and the number of brunette wigs. Since 1/4 of the wigs are blonde and 2/3 of the wigs are brunette, the fraction of wigs that are either blonde or brunette is 7/12.
Answer:
[tex]\frac{11}{12}[/tex]
Step-by-step explanation:
[tex]\frac{1}{4}[/tex] + [tex]\frac{2}{3}[/tex] The common denominator is 12 make equivalent fractions with 12 as the denominator
[tex]\frac{1}{4}[/tex] x [tex]\frac{3}{3}[/tex] = [tex]\frac{3}{12}[/tex]
[tex]\frac{2}{3}[/tex] x [tex]\frac{4}{4}[/tex] = [tex]\frac{8}{12}[/tex]
[tex]\frac{3}{12}[/tex] + [tex]\frac{8}{12}[/tex] = [tex]\frac{11}{12}[/tex]
The surface area of a cylinder with a radius of 3 inches is 787 square inches. What
is the height of the cylinder in inches? (Do not enter units)
The height of cylinder is 38.772 inches.
Consider r and h as the radius and height of the cylinder, respectively.
Given: Radius of the cylinder (r) = 3 inches
Surface area of the cylinder = 787 square inches
Now we have to calculate the height of the cylinder.
As we know the surface area of cylinder
The Surface area of cylinder= Curved Surface + Area of Circular Bases
787 = 2πrh + 2πr²
787 = 2πr(r+h)
787 = 2×3.14×3 (3+h) {π=3.14}
787 = 18.84 (3+h)
787÷18.84 = (3+h)
41.772 = (3+h)
41.772-3 = h
38.772 =h
Height of cylinder= 38.772 inches
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A three-Columm table is given. part. part. whole. what is the value of B in the table?
Answer:
Just giving my first answer.I don't know the answer.If I knew I'd tell you
Two data points are sufficient to determine whether a model is linear or quadratic.
true or false
False, Two data points are not sufficient to determine whether a model is linear or quadratic.
What is equation?An equation is a mathematical statement that is made up of two expressions connected by an equal sign. Equation, statement of equality between two expressions consisting of variables and/or numbers.
a linear model has two parameters only (y = a*x+b). You may also remember that two data points are generally enough to fit a straight line. If you consider a quadratic model with three parameters (y = a*x²+b*x+c), you'll need at least three data points.
in regression analysis, many researchers say that there should be at least 10 observations per variable. If we are using three independent variables, then a clear rule would be to have a minimum sample size of 30. Some researchers follow a statistical formula to calculate the sample size.
therefore, At least three Data points are required to determine whether a model is linear or quadratic.
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george is an engineer in a design company. when the weather is nice he walks to work and sometimes he cycles. in bad weather he takes the bus or he drives. based on past habits there is a 10% probability that george walks, 30% he uses his bike, 20% he drives, and 40% of the time he takes the bus. if george walks, there is a 15% probability of being late to the office. if he cycles there is a 10% chance of being late, a 55% chance of being late if he drives, and a 20% chance of being late if he takes the bus. given that george is late 1 day, what is the probability that he drove?
The probability that George drove given that he is late is approximately 0.355 or 35.5%.
Let's call the event of George being late "L". The problem is asking for P(Drives | L), which is the probability that George drove given that he is late.
We can use Bayes' theorem to find this probability:
P(Drives | L) = P(L | Drives) * P(Drives) / P(L)
P(L | Drives) is the probability that George is late given that he drove, which is given as 55%.
P(Drives) is the prior probability that George drives, which is given as 20%.
P(L) is the overall probability that George is late, which can be found by summing up the individual probabilities of George being late for each mode of transportation and weighting it by the corresponding prior probability of using that mode of transportation:
P(L) = P(L | Walks) * P(Walks) + P(L | Cycles) * P(Cycles) + P(L | Drives) * P(Drives) + P(L | Bus) * P(Bus)
P(L | Walks) is the probability that George is late given that he walks, which is given as 15%.
P(Cycles) is the prior probability that George cycles, which is given as 30%.
P(Bus) is the prior probability that George takes the bus, which is given as 40%.
P(L | Bus) is the probability that George is late given that he takes the bus, which is given as 20%.
Substituting these values into the formula for P(L) and simplifying:
P(L) = 0.15 * 0.10 + 0.10 * 0.30 + 0.55 * 0.20 + 0.20 * 0.40
= 0.155
Finally, substituting the values for P(L | Drives), P(Drives), and P(L) into the formula for P(Drives | L) and simplifying:
P(Drives | L) = 0.55 * 0.20 / 0.155 = 0.55 / 0.155 = 3.548
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The main scale of a vernier callipers reads 10 mm in 10 divisions. 10 divisions of Vernier scale coincide with 9 divisions of the main scale. When the two jaws of the callipers touch each other, the right of zero of main scale. When a cylinder is tightly placed between the two jaws, the zero of vernier scale lies slightly to the left of 3.2 cm and the fourth vernier division coincides with a main scale division. The diameter of the cylinder is.
A 3.09 cm
B 3.9 cm
C 3.90 cm D 39mm
The answer will be option C (3.90 cm).
To find the diameter, we need to determine the exact length reading on the main scale and then add the Vernier scale reading. We know that 10 divisions of the Vernier scale coincide with 9 divisions of the main scale.
If the zero of the Vernier scale lies slightly to the left of 3.2 cm on the main scale, then we can assume that it lies between the 3rd and 4th division of the main scale. Since the 4th division of the Vernier scale coincides with a main scale division, we can determine that the length reading on the main scale is 3.3 cm.
Next, we need to determine the Vernier scale reading. Since the 4th division of the Vernier scale coincides with a main scale division, the reading on the Vernier scale is 0.1 cm. Adding the main scale reading (3.3 cm) and the Vernier scale reading (0.1 cm), we get a total length reading of 3.4 cm.
Since the cylinder is tightly placed between the jaws of the callipers, we can assume that this length reading is equal to the diameter of the cylinder. Therefore, the diameter of the cylinder is 3.4 cm. The answer is closest to option C (3.90 cm).
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A biologist wants to create an SRS to study the effect of a medication on the respiration rate of his subjects. He places the ID number of each of the subjects into a box, shakes the box, and chooses 10 of the ID numbers without looking. Which statement best describes this sample? It is a random sample but not an SRS. It is both a random sample and an SRS. It is neither a random sample nor an SRS. It is an SRS but not a random sample.
Answer: this will help you
Step-by-step explanation:
A biologist wants to create an SRS to study the effect of a medication on the respiration rate of his subjects.
Answer: B. It is both a random sample and an SRS.
S.P=Rs 132, profit percent=10%, find C.P
Answer:
Step-by-step explanation:
10/100*132
Answer:
Step-by-step explanation:
The formula of C.P is Selling Price - Profit
Here the S.P. =132
Profit = 10%
Converting 10% = 10/100*132
= 13.2
Putting values into Formula :
132-13.2 = 118.8
so, the answer is 118.8
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What is the mode of the following numbers? 1, 2, 2, 8, 9, 14
A. 8
B. 9
C. 2
D. 14
Answer:
C) 2
Step-by-step explanation:
Mode means which number do you have the most of. You have the most 2's.
twelve students took a placement exam with the following results. 90 64 99 71 72 93 40 85 45 50 55 66 what is the percentile rank of 64? round to the nearest percentile
The percentile rank of 64 in the twelve students exam result is 42%
What is a percentage?Percentage is defined as the number that represents a ratio of a total that is divided by 100 equal parts. It is represented by the symbol %.
Ordering the data we have:
90 64 99 71 72 93 40 85 45 50 55 66
40 > 45 > 50 > 55 > 64 > 66 > 71 > 72 > 85 > 90 > 93 > 99
The 64 result is the 5th term of all the results, so:
percentile rank = (term / total term) * 100%
percentile rank = 5/12 * 100%
percentile rank = 41.66%
41.66% round to the nearest percentile 42%
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b) Escribe tres ejemplos de experimentos aleatorios y sus resultados posibles.
The three examples of random experiments and their possible outcomes are stated above.
What is a random experiment?A random experiment is a type of experiment that has multiple possible outcomes
Given is to write three examples of random experiments and their possible outcomes.
{ 1 } -
Experiment : Tossing a coin three times
Possible outcomes : Number of possible outcomes = 8
Sample space : {HHH, HHT, HTH, THH, TTH, THT, HTT, TTT}
{ 2 } -
Experiment : Three coins are tossed simultaneously
Possible outcomes : Number of possible outcomes = 8
Sample space : {HHH, HHT, HTH, THH, TTH, THT, HTT, TTT}
{ 3 } -
Experiment : Rolling a pair of dice simultaneously
Possible outcomes : 36
Sample space : {(1, 1), (1, 2), (1, 3), (1, 4), (1, 5), (1, 6), (2, 1), (2, 2), (2, 3), (2, 4), (2, 5), (2, 6), (3, 1), (3, 2), (3, 3), (3, 4), (3, 5), (3, 6), (4, 1), (4, 2), (4, 3), (4, 4), (4, 5), (4, 6), (5, 1), (5, 2), (5, 3), (5, 4), (5, 5), (5, 6), (6, 1), (6, 2), (6, 3), (6, 4), (6, 5), (6, 6)}
Therefore, the three examples of random experiments and their possible outcomes are stated above.
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{Question in english -
Write three examples of random experiments and their possible outcomes.}
is 2 the only even prime number
Answer:
yes 2 is only even prime number because it was divide by only 1 and 2
Answer:
yes
Step-by-step explanation:
Yes....every other even number is divisible by two which means they cannot be prime. Primes are divisible only by 1 and the number itself.
Type the probability notation for choosing a car or a truck.
Type the probability notation for choosing a plate and then a bowl.
Would the following group of probabilities be valid or not valid: 23%, 45%, 17%?
After her annual eye exam, Gianna will randomly select a pair of contacts from the basket containing 5 brown pair, 7 green pair, and 4 blue pair of colored contacts.
What is the probability that Gianna will randomly select a brown pair or a green pair?
The probability of choosing a car or a truck is P(Car) + P(Truck).
What is the probability that Gianna will randomly select a brown pair or a green pair?Valid.The probability of choosing a plate and then a bowl is P(Plate) x P(Bowl).Yes, the group of probabilities is valid.The probability of Gianna randomly selecting a brown pair or a green pair is P(Brown) + P(Green) = 5/16 + 7/16 = 12/16 = 3/4.The probability that Gianna will randomly select a brown pair or a green pair is 12/16, or 75%.This probability is an example of a compound probability, which is the probability of two or more events occurring at the same time.Compound probabilities are calculated by multiplying each individual probability together to get the total probability of all events occurring.For example, in this case, the probability of selecting a brown pair is 5/16 and the probability of selecting a green pair is 7/16.When these two values are multiplied together, the probability of selecting a brown pair or a green pair is 75%.To learn more about Compound probabilities refer to:
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Solve 278=34(z+1) . Express your answer as a mixed number in simplest form.
z=122/17
Step-by-step explanation:
1) Distribuez: 278=34z+34
2) Soustrayez 34 des deux côtés: 244=34z
3) diviser les deux par 34 puis simplifier: le résultat est z= 122/17
Write a story problem for which the following calculator command would be used in finding the solution.
a) Binomialpdf(20, 0.25, 12)
b) Binomialcdf(20, 0.25, 12)
the probability of success (0.25 in this case), and the number of successes (12 in this case). The command will then calculate the cumulative probability of 12 or fewer employees being late for work.
A company has 20 employees, and each employee has a 25% chance of being late for work. What is the probability that 12 or fewer employees will be late for work?
The calculator command Binomialcdf(20, 0.25, 12) would be used to find the solution.
Binomialcdf is a calculator command used to calculate the cumulative probability of a binomial distribution. The command takes three parameters: the number of trials (20 in this case), the probability of success (0.25 in this case), and the number of successes (12 in this case). The command will then calculate the cumulative probability of 12 or fewer employees being late for work.
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give an algorithm to find all nodes less than some value, x, in a binary heap. your algorithm should run in o(k), where k is the number of nodes output
An algorithm to find all nodes less than some value in a binary heap is binary_heap (int, int)
The term called algorithm is defined as a set of instructions for solving a problem or accomplishing a task.
Here we have know that the binary heap is a full binary tree that means all of its node full with 2 children except last one it may have one child or even empty Also in min heap, all node has value less than its children values in a max heap all node has a value greater than then it can be written as,
void binary_heap(Node *node, int x)
{
if (node->value >= o(x))
{
return 0;
}
printf("%d\n", node->value);
if (node->left != NULL)
binary_heap(node->left, x);
if (node->right != NULL)
binary_heap(node->right, x);
}
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a area of a rectangle is 32m squared. what is the length and the width
The coordinate points on the first quadrant represent the possible dimensions of the rectangle with an area of 32 m².
What is a function? What is a quadratic function?A function describes a relationship between a dependent and independent variable. Example -
y = f(x) = 5x + 9
Given is that the area of a rectangle is 32 m².
Assume that the length and breadth of the rectangle are {x} m and {y} m respectively. We can write the area of the rectangle as -
xy = 32
We can write -
y = 32/x .... Eq { 1 }
The dimensions cannot be negative. So, the coordinate points on the first quadrant represent the possible dimensions of the rectangle.
Therefore, the coordinate points on the first quadrant represent the possible dimensions of the rectangle with an area of 32 m².
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