Interval of convergence of the power series [tex]\frac{(x+3)^{n} }{n}[/tex] ; n = 1 is -5 < x < -1.
A power series is a special type of infinite series representing a mathematical function in the form of an infinite series that either converges or diverges.
[tex]\lim_{n \to \infty} |\frac{an+1}{an}|[/tex] is the formula used to calculate the intervals for convergence or divergenceThe series is aₙ = [tex]\frac{(x+3)^{n} }{n}[/tex]
To generate aₙ₊₁ term replace 'n' with 'n + 1'
aₙ₊₁ = [tex]\frac{(x+3)^{n+1} }{n+1}[/tex]
Now plugging aₙ and aₙ₊₁ in the formula L = [tex]\lim_{n \to \infty} |\frac{an+1}{an}|[/tex]
L = [tex]\lim_{n \to \infty} |\frac{\frac{(x+3)^{n+1} }{n+1} }{\frac{(x+3)^{n} }{n} }|[/tex]
L = [tex]\lim_{n \to \infty} |{\frac{(x+3)^{n+1} }{n+1} }/{\frac{(x+3)^{n} }{n} }|[/tex]
L = [tex]\lim_{n \to \infty} |{\frac{(x+3)^{n+1} }{n+1} }*{\frac{n }{(x+3)^{n} }|[/tex]
L = [tex]\lim_{n \to \infty} |{\frac{(x+3) }{n+1} }*{n}|[/tex]
L = [tex](x+3)\lim_{n \to \infty} |{\frac{n}{n+1} }|[/tex]
L = [tex](x+3)\lim_{n \to \infty} |{\frac{n*(\frac{1}{n}) }{(n+1)*(\frac{1}{n}) } }|[/tex]
Since n = 1
L = [tex](x+3)\lim_{n \to \infty} |\frac{1}{1+1} |[/tex]
L = [tex](x+3)\lim_{n \to \infty} |\frac{1}{2} |[/tex]
L = [tex]\frac{1}{2} * |x+3|[/tex]
The ratio tells us that if L < 1 then the series will converge
[tex]\frac{1}{2}*(x+3) < 1[/tex]
[tex](x+3) < 2[/tex]
The interval of convergence will be
-2 < (x + 3) < 2
-5 < x < -1
The interval of convergence for the power series [tex]\frac{(x+3)^{n} }{n}[/tex] is -5 < x < -1
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the area of T is 17cm calculate the area of U
Based on the area of T, the area of U can be calculated to be 272 cm²
How to find the area?When you have an object that is enlarged and have the area of the object before it was enlarged, the area of the enlarged object is:
= Area of original object x Scale factor of enlargement ²
The scale factor is:
= Side of U / Corresponding side of T
= 12 / 3
= 4
The scale factor is 4.
The area of U is therefore:
= 17 x 4²
= 272 cm²
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Please please please please please help me
James defines an angle as "a figure consisting of two rays." His statement is not precise enough because he should specify that
James defines that an angle is a figure consisting of two rays.
The statement of James is not precise enough because he should specify that the rays must be collinear.
The two rays coming from the same point will form collinear rays which will form an angle at the end point. The common end point is the vertex of the angle. And each ray will known as an arm of an angle.
From the figure, we can see that the vertex is the corner of the angle, i.e., O is the vertex in the given figure.
OA and OB are the two arms of the angle. The line OB is also known as reference line which is the line where an angle is drawn.
Also, the line OA will be considered as terminal line. Terminal line is the side up to which an angle measurement done.
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estimate the answers to these questions by rounding the numbers the numbers
a.-28-53. b.514+-321
c. -888- - 111. d.-61.1 + -29.3
The solutions after rounding the numbers are;
a. 80
b. 190
c.780
d. 90
What is Rounding number?
Rounding means making a number simpler but keeping its value close to what it was.
The questions are given as;
a. -28 - 53
b. 514 + -321
c. -888 - - 111.
d. -61.1 + -29.3
Now, solve and rounding the numbers as;
a. -28 - 53 = 81
After rounding it we get;
81 ≈ 80
Hence, -28 - 53 = - 80
b. 514 + -321 = 514 - 321
= 193
After rounding it we get;
⇒ 193 ≈ 190
Hence, 514 + -321 ≈ 190
c. -888- - 111 = - 888 + 111
= - 777 ≈
After rounding it we get;
- 777 ≈ - 780
d. -61.1 + -29.3 = -61.1 - 29.3
= - 90.4
After rounding it we get;
- 90.4 ≈ - 90
So, The solutions are;
a. 80
b. 190
c.780
d. 90
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The range for y=x2+9 is which of the following?
The range of a function y = x² + 9 is y ≥ 9
What is a function?A function is a mathematical expression rule or law that defines the relationship between one variable (dependent variable) and another (independent variable)
What is the range of a function?The range of a function is the set of output values of that function.
What is the range of the given function y = x² + 9?Given the function y = x² + 9, to find the range of the function, we need to find the values of y for which the function is valid.
Making y subject of the formula, we have
x = √(y - 9)
So, the function is valid for √(y - 9) ≥ 0
⇒ y - 9 ≥ 0
⇒ y ≥ 9
So, the range of a function is y ≥ 9
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As the x-value increases
by 2, the y-values increases
by 60.
Answer: 30
Step-by-step explanation:
Slope: y/x
y/x =
+60/+2=
60/2=30
what to do with these points
I think they're for posting questions
determine the area in square units
(0, 0), (3, 3)
What is the slope of these 2 points and how do I find it
Answer:
The slope is 1
Step-by-step explanation:
(3-0)/(3-0) = 3/3 = 1
Can't seem to understand this, please help!
The equations of each line are:
a. y = -3x + 3
b. y = -2/3x - 3
How to Write the Equation of a Line?In slope-intercept form, the equation of a line is written as, y = mx + b, given that:
m is the slope valueb is the y-intercept valueNote: the slope values of parallel lines are the same.
a. The slope of y = -3x - 1 is, -3. The line that is parallel to it will have the same slope (m) of -3.
Substitute m = -3 and (x, y) = (2, -3) into y = mx + b to find b:
-3 = -3(2) + b
-3 = -6 + b
-3 + 6 = b
3 = b
b = 3
Substitute b = 3 and m = -3 into y = mx + b
y = -3x + 3
b. Rewrite 2x + 3y = 6 in the slope-intercept form
3y = -2x + 6
y = -2/3y + 2
The slope of y = -2/3y + 2 is, -2/3. The line that is parallel to it will have the same slope (m) of -2/3.
Substitute m = -2/3 and (x, y) = (0, 5) into y = mx + b to find b:
5 = -2/3(0) + b
-3 = 0 + b
-3 = b
b = -3
Substitute b = -3 and m = -2/3 into y = mx + b
y = -2/3x - 3
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PLEASE HELP
Simplify 4/5/10. Give the answer in simplest form.
Answer:4
5
÷
10
Rewrite the division as a fraction.
4
5
10
Multiply the numerator by the reciprocal of the denominator.
4
5
⋅
1
10
Cancel the common factor of
2
.
Tap for more steps...
2
5
⋅
1
5
Multiply
2
5
by
1
5
.
2
5
⋅
5
Multiply
5
by
5
.
2
25
The result can be shown in multiple forms.
Exact Form:
2
25
Decimal Form:
0.08
Step-by-step explanation:
Find the equation of the line shown.
Answer:
y=x+6
Step-by-step explanation:
First, write out the slope intercept equation.
y=mx+b
Ok, the first step for finding a linear equation is finding the y-intercept. The line crosses the y-axis at 6, so the y-intercept is 6. Plug that into the slope-intercept Equation:
y=mx+6
Then, slope is rise over run, and the line goes up 1 and right 1 to get to the next point, so divide those numbers.
1/1=1
Then plug that into your slope intercept equation:
y=1x+6
Since the one won't do anything, it will just be this:
y=x+6
x shares pay 8% dividend and y shares pay 9%. Reiko has invested 200000 more on x shares than she has on y shares. Her total earnings for the year for the two investments is 271000. How much did she invest in x shares
The amount Reiko invested in x shares is 1,700,000 based on 8% annual dividend
How do represent the amounts invested in each share?
The fact that Reiko invested 200,000 more on x shares means that if we assume that he invested Z on y shares then the amount invested in x shares is Z+200000
return on x shares=(Z+200,000)*8%
return on x shares=0.08Z+16000
return on y shares=Z*9%=0.09Z
total return=0.08Z+16000+0.09Z
total return=0.17Z+16000
total earnings=271000
271000=0.17Z+16000
271000-16000=0.17Z
255000=0.17Z
Z=255000/0.17
Z=1,500,000
Z+200,000=1,500,000+200,000=1,700,000
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The length of a rectangle is four inches smaller than three times its width. Its perimiter is 144 inches. Find the width
The width of the rectangle, w, is: 19 inches.
What is the Perimeter of a Rectangle?The perimeter of a rectangle is the sum of all its four sides which is calculated using the formula:
Perimeter = 2(length + width).
Given:
Perimeter = 144 inches
Width = w inches
Length = 3w - 4 inches
Thus:
2(3w - 4 + w) = 144
2(4w - 4) = 144
8w - 8 = 144
8w = 144 + 8
8w = 152
8w/8 = 152/8
w = 19
Thus, the width of the rectangle, w, is: 19 inches.
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The sum of the speeds of two trains is
719.8 miles per hour. If the speed of the first train is
6.2 mph faster than the second train, find the speeds of each.
Taking into account the definition of a system of linear equations, the speed of the first train is 363 mph and the speed of the second train is 356.8 mph.
System of linear equationsA system of linear equations is a set of two or more equations of the first degree, in which two or more unknowns are related.
Solving a system of equations consists of finding the value of each unknown so that all the equations of the system are satisfied. In other words, the values of the unknowns must be sought, with which when replacing, they must give the solution proposed in both equations.
Speed of each trainIn this case, a system of linear equations must be proposed taking into account that:
"F" is the speed of the first train."S" is the speed of the second train.The sum of the speeds of two trains is 719.8 miles per hour. The speed of the first train is 6.2 mph faster than the second train.So, the system of equations to be solved is
[tex]\left \{ {{F+S=719.8} \atop {F=S+6.2}} \right.[/tex]
It is decided to solve it using the substitution method, which consists of clearing one of the two variables in one of the equations of the system and substituting its value in the other equation.
In this case, substituting the second equation in the first one you get:
S + 6.2 + S= 719.8
Solving:
2S + 6.2= 719.8
2S= 719.8 - 6.2
2S= 713.6
S= 713.6÷ 2
S= 356.8
Remembering that F= S+ 6.2, then:
F= 356.8 + 6.2
F= 363
In summary, the speed of the first train is 363 mph and the speed of the second train is 356.8 mph.
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By using the knowledge acquired about proportional relationships, solve the following questions.
Does it represents a proportional relationship?
find the constant of proportionality (K=Y/X)
give the equation that represents the relationship (Y=K*X)
The relationships represent proportional relationships and the constant of proportionalities are 5/7 and 12
The graphDoes it represent a proportional relationship?
Yes, the graph represents a proportional relationship
This is so because the graph is a linear equation and it passes through the origin
How to find the constant of proportionality (K=Y/X)
On the graph, we have the following point
(X, Y) = (28, 20)
So, we have
K = 20/28
Evaluate
K = 5/7
How to determine the equation that represents the relationship (Y=K*X)Here, we have
Y = K * X
This gives
Y = 5/7X
The tableDoes it represent a proportional relationship?
Yes, the table represents a proportional relationship
This is so because the table is a linear equation and it has a value (0, 0)
How to find the constant of proportionality (K=Y/X)
On the graph, we have the following point
(X, Y) = (5, 60)
So, we have
K = 60/5
Evaluate
K = 12
How to determine the equation that represents the relationship (Y=K*X)Here, we have
Y = K * X
This gives
Y = 12X
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Three investment portfolios are shown below.
ROR Portfolio 1 Portfolio 2 Portfolio 3
−3.8% $700 $1,250 $1,025
2.1% $2,575 $1,700 $500
11.3% $220 $1,515 $790
5.8% $1,000 $1,345 $250
1.6% $1,430 $1,675 $2,500
Using technology, calculate the weighted average of the RORs for each portfolio. Based on the results, which list shows a comparison of the overall performance of the portfolios, from best to worst?
Portfolio 1, Portfolio 3, Portfolio 2
Portfolio 2, Portfolio 3, Portfolio 1
Portfolio 1, Portfolio 2, Portfolio 3
Portfolio 3, Portfolio 2, Portfolio 1
Based on the results, the below list shows a comparison of the overall performance of the portfolios, from best to worst:
Portfolio 2, Portfolio 3, Portfolio 1
What is weighted average ROR?
The weighted average ROR is the sum of rate of returns of the assets in the portfolio multiplied by the portion of the portfolio invested in each security
Portfolio 1:
total investment=$700+$2,575+$220+$1,000+$1,430
total investment=$5925
weighted average ROR=(-3.8%*$700/$5925+2.1%*$2575/$5925+11.3%*$220/$5925+5.8%*$1000/$5925+1.6%*$1430/$5925)
weighted average ROR=2.25%(third)
Portfolio 2:
total investment=$1,250+$1,700+$1,515 +$1,345+$1,675
total investment=$7485
weighted average ROR=(-3.8%*$1,250/$7485+2.1%*$1,700/$7485+11.3%*$1,515 /$7485+5.8%*$1,345/$7485+1.6%*$1,675/$7485)
weighted average ROR=3.53%(first)
Portfolio 3:
total investment=$1,025+$500+$790+$250+$2,500
total investment=$5065
weighted average ROR=(-3.8%*$1025/$5065+2.1%*$500/$5065+11.3%*$790/$5065+5.8%*$250/$5065+1.6%*$2,500/$5065)
weighted average ROR=2.28%(second)
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Use the spinner below to find the probability of getting the following after 1 spin.
10
9
11
8
12 1
7 6
2
5
3
4
P(number> 11) | I
=
(Round to 4 decimal places)
The probability of getting no. less than 11 after 1 spin is 0.833 .
An experiment is a situation involving chance or probability that leads to results called outcomes.
An outcome is the result of a single trial of an experiment.
An event is one or more outcomes of an experiment.
Probability is the measure of how likely an event is.
P(A) = The Number Of Ways Event A Can Occur /(The total number Of Possible Outcomes).
The probability of an event depends on the number of favorable (occurrence of the desired event) outcomes in comparison to the total number of outcomes.
We define the probability of an event by dividing the favorable outcomes by the total number of outcomes, as shown below.
P = n(E) / n(S)
Where,
n(E) = The favorable number of outcomes
n(S) = The total outcomes
Given Data:
The spinner rotates 1 time
find the probability of getting P(number> 11) from numbers 1 to 12.
n(E) = 10
n(S) = 12
P(A) = 10 /12
p(A) = 5/6
p(A) = 0.8333..
Thus, the probability of getting no. less than 11 after 1 spin is 0.833
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a man drove 14 miles directly east from his home made a left turn at an intersection and then traveled 7 miles due north to his place of work. If a road was made directly from his home, to his place of work what would its distance be
If a man drove 14 miles directly east from his home made a left turn at an intersection and then traveled 7 miles due north to his place of work. If a road was made directly from his home, to his place of work what would its distance be is: 15.65 miles.
Distance(Work)
A
/ ║
/ ║
/ ║ 7 miles
/ ║
(Home) B /___________║C
14 miles
Using Pythagorean theorem formula to determine the what the distance will be:
Hypotenuse²=√Perpendicular² +Base²
Let plug in the formula
Hypotenuse²=√7²+14²
Hypotenuse²=√49+196
Hypotenuse²=√245
=15.65 miles
Therefore If a man drove 14 miles directly east from his home made a left turn at an intersection and then traveled 7 miles due north to his place of work. If a road was made directly from his home, to his place of work what would its distance be is: 15.65 miles.
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The wholesale cost of a bicycle is $98.75. The markup for the bicycle is 33.3%. Find the selling price of the bicycle to the nearest cent.
The selling price of the bicycle in discuss upon addition of the mark-up which is 33.3% as described in the task content is; $131.63.
What is the selling price of the bicycle whose mark-up is as described in the task content?The wholesale cost price of the bicycle in discuss is $98.75 as described in the task content while the markup for the bicycle is as given in the task content.
On this note, it follows that the selling price of the bicycle is the sum of its cost price and it's mark-up. Hence, we have;
Selling price = $98.75 + (33.3% of $98.75)
= $98.75 + (0.333 × $98.75)
= 98.75 + 32.88
= $131.63.
Ultimately, selling price of the bicycle in discuss upon addition of the mark-up which is 33.3% as described in the task content is; $131.63.
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Write 762,508
in expanded form using exponents
It should be noted that writing 762,508 in expanded form using exponents will be 762,508 = 700000 + 60000 + 2000 + 500 + 8.
How to illustrate the information?It should be noted that exponents simply means expanded notation. It's the way of writing to see the individual digits.
Therefore, writing 762,508 in expanded form using exponents will be:
762,508 = 700000 + 60000 + 2000 + 500 + 8
Therefore, it should be noted that writing 762,508 in expanded form using exponents will be 762,508 = 700000 + 60000 + 2000 + 500 + 8
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A dress was priced at 150 dollars. Each month, the price is reduced by 12 dollars. How much was the coat reduced in price after three months
Answer:
Step-by-step explanation: the coat was reduced by 12 dollars for 3 months so take 12x3= 36. So the coat was reduced by 36 dollars.
3+(-4)is-__units from 3 in the__direction
On a number line, 3 + (-4) is -1 units from 3 in the left direction.
What is a number line?A number line can be defined as a type of graph with a graduated straight line which contains both positive and negative numerical values (integers) that are placed at equal intervals along its length.
This ultimately implies that, a number line can be used to represent all negative numerical values (integers) to the left of 0 and all positive numerical values (integers) to the right of 0
Evaluating, we have:
3 + (-4) = 3 - 4 = -1.
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about how many pizzas does mr. t's pizzeria sell each week ? remember , there are 7 days in a week
Answer:
Is there any more information than that? if there Is I might be able to help
Three-tenths of the books in the school library are how-to books. Of these, 0.2 deal with carpentry and 0.4 deal with electronics. Interpret what the figure 0.12 represents in this context.(1 point)
Responses
the fraction of the books in the library that are how-to books on electronics
the fraction of books in the library that are how-to books on carpentry
the fraction of the how-to books that are about either carpentry or electronics
the fraction of books in the library that are how-to books
The figure 0.12 as given in the task content based on the given data can be interpreted as; the fraction of the books in the library that are how-to books on electronics.
What is the best interpretation of the figure 0.12 according to the information given in the task content?It follows from the task content that the best interpretation of 0.12 is to be determined.
On this note, since three-tenths of the books in the school library are how-to books, and of those, 0.4 deal with electronics;
The statement above therefore means that the fraction of books which are how-to books and deal with carpentry can be evaluated as;
= (3/10) × 0.4
= 0.3 × 0.4
= 0.12.
Ultimately, The figure 0.12 as given in the task content based on the given data can be interpreted as; the fraction of the books in the library that are how-to books on electronics.
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Functions of a polynomial. graph f(x)=(x+5)^2
Using a transformation of the parent function y = x², the graph of f(x) = (x + 5)² is given at the end of the answer.
What are transformations on the graph of a function?Transformations in the graph of a function involve operations such as multiplication/division or sum/subtraction, either in the domain of the function, involving values of x, or the range, involving values of y.
Examples of transformations are as follows:
Translation: Translation left/right or down/up.Reflections: Over one of the axes or over a line.Rotations: Over a degree measure.Dilation: Coordinates of the vertices of the original figure are multiplied by the scale factor.For this problem, the parent function is given by:
f(x) = x².
Which has a parabolic graph with vertex at (0,0).
For f(x) = (x + 5)², we have that x -> x + 5, meaning that the function is shifted 5 units left, meaning that the parabola has a vertex at (0,-5), and the graph is given at the end of the answer.
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Can somone help me with these fractions will give u brainliest :'(
Answer:
2/3 < 14/6
3/8 < 8/3
2 1/6 > 5/9
Explain how to use estimation to solve this problem
Answer:
If the debt of 24 trillion was equally divided by 300 million people, it's not really an estimation. You have an exact answer.
You would just divide it so each person owes $80,000
Brainly User
11/01/2016
Mathematics
Middle School
answered
By recycling 1 ton of paper,6,953 gallons of water are saved. How many gallons of water are saved by recycling 4 tons of paper?
The number of gallons that would be saved after the recycling 4 tons of paper would be 27, 812
What is proportion?Proportion can be defined as the mathematical comparison of two numbers.
It is also said to be an equation defining two given ratios as equivalent to each other.
From the information, we have that;
By recycling 1 ton of paper, 6, 953 gallons of water was saved
To determine the gallons of water that would be saved after recycling 4 tons of paper, we have to;
If 1 ton of paper = 6, 953 gallons of water
Then 4 tons of paper = x
cross multiply
x × 1 = 6953 × 4
multiply through
x = 27, 812 gallons
The number of gallons that would be saved after the recycling would be
27, 812 gallons
Thus, the number of gallons that would be saved after the recycling 4 tons of paper would be 27, 812
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Question: 5/20
Mike bought 17 bottles of beer from a shop. He wants to
move these bottles to his car If he can only carry 3 bottles at
a time, what is the minimum humber of trips he needs to make
to carry these bottles?
Answer:
6 trips
Step-by-step explanation:
divide by 3
17/3
5.66666666
now round it off and say 6