The ratio of even cards to odd cards that Jordan has is 2:5 or 2/3.
Given:
Jordan has some number cards that each have a whole number on them.
If he chooses a card at random, the probability that the number on it is even is 2/7.
Let x and y be the even and odd cards.
x / x+y = 2/7
cross multiplication
7*x = 2(x+y)
7x = 2x + 2y
7x - 2x = 2y
5x = 2y
divide by 5 on both sides
5x/5 = 2y/5
x = 2/5 y
x/y = 2/5
x:y = 2:5.
Learn more about the number here:
https://brainly.com/question/17429689
#SPJ1
Mae want to make more than 6 gift baket for the chool raffle. Each gift cot $15. 50. Write an inequality to determine the amount of money he will pend to make the gift baket
The inequality is Amount A= 15.5 x where x>6.
What is inequality?
An inequality compares two values and indicates whether one is less than, greater than, or simply not equal to the other. In mathematics, the relationship between two expressions or values that are not equal is called an inequality.
Here ,Given , Cost of 1 gift basket = $15.50
Let the no. of gift basket be 'x'
=> x > 6
Therefore, Amount of money She will spend
=> $15.50x where x > 6
=>A = 15.5x : x > 6
Therefore the inequality is Amount A= 15.5x where x>6.
To learn more about inequality refer the below link
https://brainly.com/question/25275758
#SPJ4
where in the world would you expect to have a relative humidity of close to 100%? what about close to 0%?
100% humidity is very common in many coastal zones, near rivers or lakes or in your bathroom when you take a shower, and possibly in Alaska as well as UAE.
Relative humidity:
Relative humidity is the ratio of the current absolute humidity to the highest possible absolute humidity (which depends on the current air temperature). A reading of 100 % relative humidity means that the air is totally saturated with water vapor and cannot hold any more, creating the possibility of rain. This doesn't mean that the relative humidity must be 100 percent in order for it to rain — it must be 100 percent where the clouds are forming, but the relative humidity near the ground could be much less.
0% humidity means there is an absence of water vapor in the air.
To learn more about Relative humidity visit:
https://brainly.com/question/22069910
#SPJ4
The Mizzi Corporation ha created a demand function for one of it wrench et. It expree the quantity demanded in term of the wholeale price p, and wa found by urveying retailer and uing linear regreion. The demand function i q = –98p 5,788. Their expene function i E = 23q 68,000. Expre the expene function a a function in term of p
The Mizzi Corporation ha created a demand function for one of it wrench et. The expense function a a function in term of p is E=−2,254p+81,294.
Eleven of 2 Substitute[tex]q=-98p+578q=−98p+578[/tex] withinside the method [tex]E=23q+68,000E=23q+68,000.[/tex]begin [tex]E&=23cdot left(-98p+578right)+68000[/tex]&=[tex]-2,254p+13,294+68,000[/tex] &=-[tex]2,254p+81,294[/tex] end[tex]=−2,254p+13,294+68,000=−2,254p+81,294.[/tex]Read more about demand function:
https://brainly.com/question/15234429
#SPJ4
If a boat is 150 meters from the base of a cliff that is 90 meters high, what is the angle of elevation from the boat to the cliff top?
The angle of elevation from the boat to the cliff top is approximately 31 degrees.
How to find the angle of elevation from the boat to the cliff top?The boat is 150 meters from the base of a cliff that is 90 meters high. The angle of elevation from the boat to the cliff top can be calculated as follows:
The situation form a right angle triangle. The angle of elevation can be found using trigonometric ratios.
tan ∅ = opposite / adjacent
where
∅ = angle of elevation
Hence,
tan ∅ = 90 / 150
∅ = tan ⁻¹ 0.6
∅ = 30.9637565321
∅ ≈ 31 degrees
learn more on angle of elevation here: https://brainly.com/question/14806301
#SPJ1
What is the measure of angle JFL?
Answer:
68 degrees
Step-by-step explanation:
We are given measurements of JFG and GFL already! Because of this, angle JFL will just be the sum of those two
36 + 32 =
68 degrees
So, JFL has a measure of 68 degrees
Answer: 68degrees
Step-by-step explanation:
Add both of the other angle measures to get angle JFL
The relative frequency of an event is used to calculate what type of probability?.
The probability we use is empirical probability.
The given statement,
The relative frequency of an event is used to calculate what type of probability,
Here, we use empirical probability.
The relative frequency of an event is closely related to an empirical probability, also known as an experimental probability. Empirical probability bases its estimation of the likelihood that a specific result will recur on the number of instances of that outcome within a sample set. The chance of "event X" occurring will be determined by how many times it occurs out of 100 trials.
To learn more about probability click here:
brainly.com/question/11234923
#SPJ4
a(n) is an unusually small or unusually large data value. a. z-score b. median c. sample statistic d. outlier
The answer is outlier. a value in a set of data that "lies outside" (is much smaller or greater than) the majority of the other values.
what is sample statistic?Any figure derived from your sample data is referred to as a sample statistic (or simply a statistic). The sample mean, median, sample SD, and percentiles are a few examples. A statistic is a random variable since it is based on information gained by random sampling, which is a random experiment.
How come we employ sample statistics?A sample is a statistical term for a population that has been analytically subset. As a result of the usage of samples, investigations may be completed faster and with more manageable data.
To know more about sample statistics visit:
https://brainly.com/question/29490427
#SPJ4
Julie, a single taxpayer, has completed her 2019 Schedule C and her net loss is $40,000. Her only other income is wages of $30,000. Julie takes the standard deduction of $12,200 in 2019 a. Calculate Julie's taxable income or loss. b. Calculate the business and nonbusiness portions of her taxable income or loss. c. Determine Julie's 2019 NOL
Using Taxable income formula,
a) $22,200
b) Non- business loss = $12,200 ; business loss
= $10,000
c) $10,000
We have given that
Julie's taxpayer data as following
Net loss = $40,000
Income wage = $30,000
standard deduction = $12,200
a)Computation of taxable income of Julie for 2020
total taxable income is sum of wager , net loss and standard deduction
= - $40,000 + $30,000 - $12,200
= - $22,200
negative sign indicates loss
b) business wages = $30,000
net loss = $40,000
business loss = $30,000- $40,000
= -$10,000
Non- business loss = $12,200 = standard deduction.
c) Julie's 2019 NOL ( net operating loss) is just equal to business net loss
= $30,000- $40,000 = - $10,000
Hence, we get all required answers about Julie's loss.
To learn more about Taxable income , refer:
https://brainly.com/question/1160723
#SPJ4
Quetion 1
Janet drive at an average peed of 50 mile per hour to viit her grandparent, who live 200 mile away from Janet’ houe
Answer: ?
Step-by-step explanation: Is that the whole question? I don't really understand the question.
mary has a math test tomorrow with both multiple choice and short answer questions the multiple choice questions are worth 2 points a piece and the short answers are worth 6 points a piece. there is a total of 200 points in a test
By solving the given word problem, the number of multiple-choice questions is 29 and short answers is 7.
In mathematics, word problem refers to a question including mathematical information written in ordinary language and requires students to apply their math knowledge to a real-life scenario. For the given case,
Let M be the number of multiple choice questions and N be the number of short answers.
As multiple-choice questions are worth 2 points each and the short answers are worth 6 points each and there is a total of 100 points:
2M + 6N = 100
The total number of questions on the test are 36:
M + N = 36
M = 36 – N
Substituting this into the first equation:
2(36 – N) + 6N = 100
72 – 2N + 6N = 100
4N = 100 – 72
4N = 28
N = 7
Substituting N in M = 36 – N
M = 36 – 7 = 29
Note: The question is incomplete. The complete question probably is: has a math test tomorrow with both multiple choice and short answer questions the multiple choice questions are worth 2 points apiece and the short answers are worth 6 points apiece. There is a total of 100 points in a test and 36 questions. How many questions of each type are on the test?
Learn more about Word problem:
https://brainly.com/question/21405634
#SPJ4
ind a parametric representation for the torus obtained by rotating about the z-axis the circle in the xz-plane with center (b, 0, 0) and radius a < b.
The parametric representation for torus is x = bcos ∅ + a cos acos ∅
y = b sin ∅ + a cos a sin ∅
z = a sin a where , 0 ≤ a ≤ 2π , 0 ≤ ∅ ≤ 2π
Parametric equation are the set of equations that express a set of quantities as explicit function of the numbers of independent variables known as parameter
Parametric representation are generally non unique so that the quantities may be expressed by the number of different parameterizations
According to the question,
The torus obtained by rotating about the z-axis the circle in the xz-plane with center (b, 0, 0) and radius a < b.
z = a sin a
y = |PQ| and x = |OP|
but , |OQ| = |OR| + |RQ| = b + a cos a
sin ∅ = |PQ| / |OQ|
So that , y = |OQ| sin ∅ = (b + a cos a ) sin ∅
Similarly ,
cos ∅ = |OP| / |OQ|
so that x = (b + a cos a ) cos ∅
Hence , a parametric representation for a torus is
x = bcos ∅ + a cos acos ∅
y = b sin ∅ + a cos a sin ∅
z = a sin a
where , 0 ≤ a ≤ 2π , 0 ≤ ∅ ≤ 2π
To know more about Parametric equation here
https://brainly.com/question/28537985
#SPJ4
When exposed to heat, the reaction time of a certain chemical always occurs after 12 minutes, but before 16 minutes. Reaction times for this chemical can be modeled by a uniform distribution. a. Find the probability that the reaction will happen after 14 minutes. Shade the area of the graph and calculate the numerical value of the probability. b. Find the probability that the reaction will occur between 14 minutes and 15 minutes. Shade the area of the graph and calculate the numerical value of the probability.
The numerical value of the probability is occur after 14 minutes is 0.75.
The probability that the reaction will occur after 14 minutes is 0.75 when a specific chemical's reaction time when exposed to heat always happens after 12 minutes but before 16 minutes.
Given that,
A specific chemical's reaction time when exposed to heat always happens after 12 minutes but before 16 minutes. A uniform distribution can be used to model the reaction times for this substance.
We have to calculate the probability that the reaction will occur after 14 minutes. Calculate the probability's numerical value and shade that area of the graph.
We know that,
In the uniform distribution,
The probability is given by the Area of the Rectangle.
Area = Base x Height.
Height = 1 / (16 - 12) = 1 / 4 = 0.25
Base = 17 - 14 = 3
We need to find the probability (X >14).
The required probability = 3 × 0.25 = 0.75
Therefore, The probability that the reaction will occur after 14 minutes is 0.75 when a specific chemical's reaction time when exposed to heat always happens after 12 minutes but before 16 minutes.
To learn more about probability visit: https://brainly.com/question/22885953
#SPJ4
5 people were asked how many books they own, and the results are shown
below. Michael owns 97 books and wants to know whether he owns more books
than most other people.
a) Which average should he use to compare?
b) What is the value of this average for the five numbers shown below?
225
142
29
103
61
The average book owned by other people is 112 which is greater than Michael's.
What is average?
In standard language, a mean could be a single range taken as representative of a listing of numbers, typically the total of the numbers divided by what numbers are within the list.
Main Body:
Books owned by Michael = 97
Average book owned by people = sum of all books / total people
avg. book owned = (225+142+29+103+61)/5
avg book owned by people = 560/5
= 112
Hence books owned by avg people is 112.
To know more about average click on the link below
https://brainly.com/question/20118982
#SPJ1
Barium-122 has a half-life of 2 minutes. A fresh sample weighing 100 g was obtained. If it takes 6 minutes to set up an experiment using barium-122, how much barium-122 will be left when the experiment begins?.
If it takes 6 minutes to set up an experiment using barium-122, then 12.5g of barium-122 will be left when the experiment begins
Half life of barium-122 = 2 min
Mass of sample = 100 g
Mass of barium remain after 6 min = ?
Number of half lives = Time elapsed / half life
Number of half lives = 6 min/ 2 min
Number of half lives = 3
At time zero = 100 g
At 1st half life = 100 g/2 = 50 g
At 2nd half life = 50 g/2 = 25 g
At 3rd half life = 25 g/2 = 12.5 g
Therefore, If it takes 6 minutes to set up an experiment using barium-122, then 12.5g of barium-122 will be left when the experiment begins.
To learn more about half life refer here
https://brainly.com/question/26148784
#SPJ4
a towing vessel 25 meters in length is pushing barges ahead. how many white masthead lights is the vessel required to show at night?
A 25-meter-long towing vessel is pulling barges forward. The ship is required to display a minimum of two white masthead lights at night.
Define the term towing vessel?A commercial vessel that is pulling, pushing, hauling aboard, or any mixture of pulling, pressing, or hauling alongside, is referred to as a towing vessel.
Masthead light refers to a white light that is positioned over the fore and aft centerlines of the vessel.Showing an uninterrupted beam of light over a horizon arc of 225 degrees and fixed so that the light can be seen from directly in front of the beam to 22.5 degrees behind the beam.Along both side of the vessel, with the exception that on a vessel less than 12 meters in length, the masthead light must be positioned as closely as is practical to the fore .Thus, a 25-meter-long towing vessel is pulling barges forward. The ship is required to display a minimum of two white masthead lights at night.
To know more about the Masthead light, here
https://brainly.com/question/4603065
#SPJ4
What is the next number in the sequence 123135148160173?.
The next number in sequence is 185.
What is arithmetic progression?
A sequence within which each term is made by adding or subtracting an explicit variety to the preceding variety is an arithmetic sequence.
Main body:
Step 1:
Find the pattern and write the recursive formula: [tex]\left \{ {{a_{n+1} =a_{n} +12} \atop {a_{n+1} =a_{n} +13}} \right.[/tex]
as the sequence is 123,135,148,160,173..
so 1st term 12 is added in 2nd term 13 is added
so after 173 , 12 will be added ,
173+12 = 185
hence, the next number in sequence is 185.
To know more about arithmetic sequence , click on the link below
https://brainly.com/question/6561461
#SPJ4
How is Pascal's triangle used in binomial theorem?.
To simplify the process of expanding a binomial of the type (a+b) n (a + b) n, use Pascal's triangle. The same numbered row in Pascal's triangle will match the power of n that the binomial is being raised to.
A triangular array of binomial coefficients known as Pascal's triangle can be found in algebra, combinatorics, and probability theory. Even though other mathematicians studied it centuries before him in India, Persia, China, Germany, and Italy, it is called after the French mathematician Blaise Pascal in a large portion of the Western world. Traditionally, the rows of Pascal's triangle are listed from row =0 at the top (the 0th row). Each row's entries are numbered starting at k=0 on the left and are often staggered in relation to the numbers in the next rows. The triangle could be created in the manner shown below: The top row of the table, row 0, contains one unique nonzero entry.
Learn more about triangle here
https://brainly.com/question/2773823
#SPJ4
How many solutions does this linear system have Y X+ 2 6x 4y 10?.
The linear system of equation y = x+2 and 6x = 4y+10 has only one solution.
The linear equation is y = x+2 and 6x = 4y+10
Now we solve the equations by substitution:
Using the value of y from the first equation and substituting in the second equation we get:
6x = 4y + 10
6x = 4(x+2)+10
or, 6x-4x = 8 + 10
or, 2x = 18
or, x = 9
at x=9 , y =11
Hence solution is (9,11) which represents the point of intersection of the two lines.
The phrase "solution of a linear equation" refers to the set of variable values in a linear equation that results in all possible solutions. Linear equations use unknown quantities as one or more variables to simulate real-world problems.
The intersection or meeting points of the lines or planes used to represent the linear equations are referred to as the solutions. The solution set is the collection of values for each variable in a system of linear equations.
Disclaimer: the complete question is :
How many solutions does this linear system have y = x+2 and 6x = 4y+10 have?
To learn more about linear system visit:
brainly.com/question/27664510
#SPJ4
Lin solved the equation 8(x-3) 7=2x(4-17) incorrectly. find the errors in her solution. what should her answer have been?
The answer of the equation 8(x-3) +7=2x(4-17) is x=1/2.
What is equation?An equation is a statement that says that the value of two mathematical expressions is equal i.e., it is a mathematical sentence that has two equal sides separated by an equal sign.
We have the equation : 8(x-3) +7=2x(4-17)
Here we are not given Lin's solution so we can not find the error in her solution but we will solve this equation and find the value of x.
8(x-3) +7= 2x (4-17)
⇒ 8x - 24 +7 = 2x(-13)
⇒ 8x -17= -26x
⇒ 34x = 17
⇒ x= 17/34
⇒ x =1/2.
The solution of the above equation is x= 1/2.
To know more about equation, visit
https://brainly.com/question/22688504
#SPJ4
What is the length of RS in the diagram TQ is 18 units in length?.
The length of the RS is 25 units, using SAS Congruence.
What is SAS Congruence?
Congruent refers to figures that are equal in all respects, particularly in terms of size and shape. Congruence is a mathematical concept that describes the relationship between two congruent figures. The relationship between two congruent figures is referred to as congruence. Let's now talk about the triangle SAS congruence. The phrase SAS congruence often referred to as Side Angle Side congruence, is used to define the relationship between two congruent figures. To fully grasp the significance of SAS, let's talk in-depth about the triangle SAS congruence.
We have specified that TQ is 18 units in length.
TQ = RT as a result,
and 2x + 10 = 18
2x = 18 - 10
2x = 8x2 = 4 units.
Now that both triangles satisfy the Right Angled Hypotenuse Side criteria or SAS concurrency criteria,
RS = QS.
= 9x - 11
= 9(4) - 11
= 25 units.
Hence, the length of the RS is 25 units, using SAS Congruence.
Learn more about SAS Congruence, by the following link.
https://brainly.com/question/3999145
#SPJ4
What is the GCD of 15 and 45?.
The greatest common divisor(GCD) of 15 and 45 is 15.
What is meant by GCD?The greatest common divisor (GCD) of two or more integers, where at least one of them is not zero, is the largest positive integer that is a divisor of both numbers. For example, the GCD of 8 and 12 equals 4.
In the divisibility preorder relation, the GCD of a and b is their greatest positive common divisor. This signifies that a and b's common divisors are the same as their GCD divisors. The Euclidean algorithm or Euclid's lemma are widely used to establish this. This is the definition of "greatest" in the context of GCD generalizations.
Foe calculating the GCD of 15 and 45, we have to find the factors of 15 and 45.
Factors of 15:
1, 3, 5, 15
Factors of 45:
1, 3, 5, 9, 15, 45
From all these factors we have to choose the greatest factor that is exactly divisible by both 15 and 45,
So, the greatest factor is 15
To know more about GCD, visit:
https://brainly.com/question/27227228
#SPJ4
What is the measure of the vertex angle of an isosceles triangle if the measure of the base angle is 36?.
Each base angle 72 degrees is the measure of the vertex angle of an isosceles triangle if the measure of the base angle is 36
For any triangle, the three angles always add to 180 degrees.
In an isosceles triangle, the base angles are the same measure. For now we don't know what they are, so let's call them x. The vertex angle is 36.
Adding the three angles (x, x, and 36) and setting that equal to 180 will help us find the value of x.
x+x+36 = 180
2x+36 = 180
2x+36-36 = 180-36 .... subtract 36 from both sides
2x = 144
2x/2 = 144/2 .... divide both sides by 2
x = 72
This triangle has two base angles of 72 each and the vertex angle of 36. As a check, the three angles should add up to 180
72+72+36 = 144+36 = 180
learn more about of base angle here
https://brainly.com/question/6561428
#SPJ4
Jorge’s printer can print 24 pages in 15 minutes (1/4 per hour). How many pages can it print in 3/4 hour? In 1 hour?
The amount of pages the Jorge's printer can in 3/4 hours print is 72 pages.
What is a printer?A printer is a device that accepts text and graphic output from a computer and transfers the information to paper.
Note:
The amount of pages the printer can print is directly proportional to the time.Therefore,
P ∝ tP = ktP₁/t₁ = P₂/t₂.................Equation 1Make P₂ the subject of the equation
P₂ = (P₁t₂)/t₁............... Equation 2Where:
P₁ and P₂ = Initial and final pages the printer can printt₁ and t₂ = Initial and final time it takes the printer to print the pagesFrom the question,
Given:
P₁ = 24 pagest₁ = 1/4 hourst₂ = 3/4 hoursSubstitute these values into equation 2
P₂ = (24×3/4)/(1/4)P₂ = 24×3P₂ = 72 pages.Hence, the amount of pages it can print is 72 pages.
Learn more about printer here: https://brainly.com/question/28110846
#SPJ1
a certain culture of the bacterium streptococcus a initially has 9 bacteria and is observed to double every 1.6 hours. (a) estimate the number of bacteria after 34 hours. (round your answer to the nearest whole number.) bacteria
After 34 hours, there are approximately 29 bacteria(to the nearest hundred) in the culture.
What is meant by multiplication?Combining two or more bacterium streptococcus to create a new number is the mathematical action known as multiplication. It is frequently represented by the letter "x" or an asterisk (*), and is also referred to as the "times" operation. Since multiplication may be regarded of as a shortcut for repeatedly adding a number to itself, it is closely connected to addition. For instance, multiplying two by three is identical to adding two plus two plus two, which equals six. Division and multiplication are connected because dividing one number by another is equivalent to multiplying the first number by the reciprocal of the second number. For example, 3 x 1/2 is equivalent to dividing 3 by 2, which equals 1.5.
How to solve?
N(t) = N0 * 2^(t/tau)
N(34) = 9 * 2^(34/1.6) = 9 * 2^(21.25)
To round this number to the nearest whole number, we can first calculate 2^(21.25) and then multiply it by 9. Since 2^(21.25) is approximately 3.2, the final answer is approximately 29. This means that after 34 hours, there are approximately 29 bacteria in the culture.
To learn more about multiplication, visit:
https://brainly.com/question/29635504
#SPJ4
help meeeeeeeeeeee pleaseee rnnnnn!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Using compound interest formula [tex]A = p(1 +\frac{r}{n} )^{nt}[/tex], the amount Erica owed is $8,551.56.
How to find the amount Eric owes for 6 years?The amount Erica owes for 6 years if 5300 dollars is loaned to her at the rate of 8% compounded monthly can be computed as follow:
Therefore, it is compounded 12 times.
[tex]A = p(1 +\frac{r}{n} )^{nt}[/tex]
where
p = principalr = rate t = timen = number of time compoundedTherefore,
p = 5300 dollars
t = 6 years
n = 12
r = 8%
Therefore,
[tex]A = p(1 +\frac{r}{n} )^{nt}[/tex]
[tex]A = 5300(1+ \frac{0.08}{12} )^{(12)(6)}[/tex]
A = 5,300(1 + 0.0066666666666667)⁷²
Therefore,
A = $8,551.56
learn more on loan here:https://brainly.com/question/13423008?referrer=searchResults
#SPJ1
what is a saddle point? which is more likely, getting stuck in a local minima or in a saddle point? explain why and show proof.
Saddle points are critical point that the function didn't in local maximum points nor in a local minimum position. Saddle pointly mostly happen in the multivariable functions. In simple, saddle point is everything on the function accept the local maxima and minimum maxima. The proof what is the saddle shown in the picture. As you can see, the curve besides local maxima and minimum maxima is create an area like a saddle, thats why its called saddle point.
How to calculate availability of saddle points?Saddle point availability can be calculate by this logic: lets say we have r = f(q, w), then the point (q, w, r) is told to be a saddle point if each derivatives fq(q, w) and fw(q, w) subside,and f is not in any local maximum or local minima value at (x, y).
Learn more about saddle points at https://brainly.com/question/17465347
#SPJ4
average linkage is a measure of calculating dissimilarity between two clusters by . a. finding the distance between the two closest observations in the two clusters b. finding the distance between the two most dissimilar observations in the two clusters c. computing the average distance between every pair of observations between two clusters d. computing the distance between the cluster centroids
The correct answer will be c. computing the average distance between every pair of observations between two clusters
What is Cluster Analysis?
Grouping "things" into "similar" groups is one of the most fundamental, straightforward, and frequently overlooked techniques (or processes) of comprehending and learning, on which cluster analysis is based. To create clusters of a particular type, this process uses a variety of different algorithms and techniques. It is also a component of data management in statistical analysis.
A multivariate data mining technique called cluster analysis aims to group things (such goods, responders, or other entities) based on a set of user-selected features or characteristics. Data compression, machine learning, pattern recognition, information retrieval, and other areas all use this essential and crucial phase of data mining, which is also a widely used method for statistical data analysis.
Here as per the given question, there are two clusters given.
Hence, computing the average distance between every pair of observations between two clusters.
Learn more about Cluster Analysis, by the following link.
https://brainly.com/question/27848870#:~:text=What%20are%20clusters%20in%20a,seen%20in%20a%20the%20dataset.
#SPJ4
The diameter of a tree was 23 inches. During the following year, the circumference increased 2.8 inches. Use differentials to approximate the following: About how much did the tree's diameter increase? About how much did the tree's cross-sectional area increase?
The tree's diameter is increased by 1.4/π inches and the increase in the tree's cross sectional area is 32.2 square inches.
According to the question,
We have the following information:
The diameter of a tree was 23 inches. During the following year, the circumference increased 2.8 inches.
Now, let's take the radius of the tree to be r inches.
Following formula is used to find the circumference of the circle = 2πr where r is the radius
Using differentiation, we have:
dC = 2πdr
dC = 2.8 inches
2πdr = 2.8
dr = 2.8/2π
dr = 1.4/π inches
Now, increase in the cross sectional area:
Area = [tex]\pi r^{2}[/tex]
Using differentiation:
dA = 2πrdr
Radius = diameter/2
Radius = 23/2 inches
Radius = 11.5 inches
dA = 2π*11.5*1.4/π
dA = 2*11.5*1.4
dA = 32.2 square inches
Hence, the tree's diameter is increased by 1.4/π inches and the increase in the tree's cross sectional area is 32.2 square inches.
To know more about diameter here
https://brainly.com/question/4675204
#SPJ4
use absolute value notation to define the interval (or pair of intervals) on the real number line. (use the variable x.) all real numbers at least two units from 4
The point is [-13,-7] when the actual numbers are all at least two units away from 4.
Given that,
To specify the interval (or pair of intervals) on the real number line, use absolute value notation. (Utilize the x variable.) actual numbers are all at least two units away from 4.
We know that,
We get,
|-4-x| = 3
-3 = -4-x = 3
7 = -x = 13
-13 = x = -7
Therefore, The point is [-13,-7] when the actual numbers are all at least two units away from 4.
To learn more about actual numbersvisit: https://brainly.com/question/17429689
#SPJ4
Eff bezos awarded which singer the courage and civility award along with $100 million to be distributed to charities as she sees fit?.
Answer:
Dolly Parton
Step-by-step explanation:
hopes this helps please mark brainliest