Answer:
A
Step-by-step explanation:
What can you say about the series an in each of the following cases? (a) lim. 72 = 5 absolutely convergent conditionally convergent divergent cannot be determined (b) lim 0:2 = 0.5 absolutely convergent conditionally convergent divergent cannot be determined na absolutely convergent conditionally convergent divergent cannot be determined
The Test of convergence of series, helps us to check the given series are absolutely convergent
divergent, conditionally convergent.
Using the convergence test we get,
a) The lim. 72 = 5 is divergent. The correct option is option( C).
b) lim 0:2 = 0.5 is absolutely convergent. The correct option is option ( A).
Firstly , we discuss how to check absolutely convergent , divergent or conditionally convergent.
Steps to Determine :
Step 1: Take the absolute value of the series. Then determine whether the series converges.
If it converges, then we say the series converges absolutely.
If it does not converge, then we say it does not converge absolutely and we follow to Step 2
Step 2: Use the Alternating Series Test to determine whether the original series converges or diverges.
If it converges, then we say the series converges conditionally.
If the Alternating Series Test fails, we attempt another test.
Absolute Convergence Test :
If ∑∞ |an| converges, then ∑∞ aₙ converges
n = 1 n =1
We say that ∑∞ aₙ converges absolutely
n=1
if this case is true. If a series does not converge absolutely but converges by another test, we say that the series converges conditionally.
The Alternating Series Test: An alternating series, ∑∞( −1)⁽ⁿ⁻¹⁾aₙ , converges if the following 3
n=1
conditions are satisfied:
Check that lim an =0n→∞
Check that aₙ >0 , for all n.Check that aₙ ≥ aₙ₊₁, for all n. (This determines whether an is non- increasing.)Geometric Series Test: a series of the form
∑∞ ar⁽ⁿ⁻¹⁾ , the series converges if |r|< 1 and
n=1
diverges if |r | ≥1 nᵗʰ Term Test/Divergence Test
∑∞ aₙ , diverges if lim aₙ
n=1 n→ ∞
does not exist or does not equal zero.
p-series Test : The series ∑∞ (1/nₚ) converges if
n=1
p>1 and diverges if p ≤1.
we have given that
a) ∑∞ |aₙ₊₁/aₙ| = 5 >1
n = 1
Ratio Test: If 0 < aₙ and limn→∞(aₙ₊₁/aₙ) < 1, then an converges.If the limit is greater than 1, then
the series diverges. And if the limit is equal to 1, then the test gives no information.
so, it is divergent
b) ∑∞ |aₙ₊₁ /aₙ| = 0.5 <1
n = 1
: If 0 < an and limn→∞(aₙ₊₁/aₙ) < 1, then series converges. So, it is absolutely convergent .
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Find the derivative: g(x) = S1+2x 1-2x tsintdt
The derivative of g(x) is (-4x²-3x+1)cos(1+2x) - (2x³ - 2x^2 + x)tcos(1+2x) + t(1+2x)sin(1+2x) + C, where C is a constant of integration.
What is derivative?The derivative is a mathematical concept that represents the rate at which a function changes. It is essentially the slope of the tangent line to the curve of the function at a given point.
What is integration?Integration is the process of finding the integral of a function, which involves calculating the area under its curve. It is the reverse of differentiation and is used in calculus and mathematical analysis.
According to the given information:
To find the derivative of g(x), we first need to evaluate the integral:
g(x) = ∫[1, 2x+1] (1-2t)sin(t) dt
Using the product rule of differentiation, we have:
g'(x) = (d/dx) [∫[1, 2x+1] (1-2t)sin(t) dt]
= (2-2x)sin(2x+1) - ∫[1, 2x+1] 2sin(t) dt
Simplifying the second term, we get:
g'(x) = (2-2x)sin(2x+1) - 2[cos(2x+1) - cos(1)]
Therefore, the derivative of g(x) is g'(x) = (2-2x)sin(2x+1) - 2[cos(2x+1) - cos(1)].
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If the diameter of a circle is 18 feet, which is the closest to the circumference? A : 28.26 feet
B:5.73feet
C: 9 feet
D:56.52 feet
Answer:
I believe the answer is D:56.52 feet (hopefully I helped you)
Step-by-step explanation:
Radius: 18/2= 9 feet
Circumference: 2(pi)9
Circumference: 18(pi)
Circumference: 56.54
Answer: 56.52
Step-by-step explanation:
PLEASE I AM MARKING BRAINLEST!
Answer:
5, 9,13,17
Step-by-step explanation:
5 +4 +4+4
The first term in a geometric series is 555 and the common ratio is 222. Find the sum of the first 101010 terms in the series.
The first 10 terms sum in the geometric series is 5115.
The first term of geometric series = 5
Common ratio = 2
First, let us discuss how to calculate the sum of n terms of GP. Assume the sum of the first n terms of a GP with first term a and common ratio r. Then the first 'n' terms of GP are of form a, ar, ar², ... ar^(n-1). Let S be the sum of the GP of n terms. Then:
Sₙ = a + ar + ar² + ... + ar^(n-1) ... (1)
Multiply both sides by r:
rSₙ = ar + ar² + ... + arⁿ ... (2)
Subtracting equation (1) from equation (2):
rSₙ - Sₙ = (ar + ar² + ... + arⁿ) - [a + ar + ar² + ... + ar^(n-1)]
Sₙ (r - 1) = arⁿ - a
Sₙ (r - 1) = a(rⁿ - 1)
Sₙ = a(rⁿ - 1)/(r - 1)
Note that, here, r ≠ 1.
Sₙ = -a(1 - rⁿ)/(-(1 - r)) = a(1 - rⁿ)/(1 - r).
Sₙ = a[1-rⁿ]/[1-r]
S₁₀ = 5[1-2¹⁰]/[1-2]
S₁₀ = 5[1023]
S₁₀ = 5,115
--The given question is incorrect, the correct question is
"The first term in a geometric series is 5 and the common ratio is 2. Find the sum of the first 10 terms in the series."--
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6 balls for $4.00 or 4 balls for $2.50. What's the better deal?
Answer:
4 balls for $2.50
Step-by-step explanation:
If 4 balls=$2.50
Then,$2.50+2.50= $6.25
$6.25 for 8 balls
If 30% of a given number is 24 what is 75% of what number
Answer:
Step-by-step explanation:
Divide both numbers (30% & 24) by two to get 15% (this will make things easier). 30% / 2 = 15% & 24 / 2 = 12
Now you know that 15% is 12. To find what value 75% is, you have to divide 75 by 15, which is 5. Multiply 15% and 12 to get your final answer.
15% * 5 = 75%
12 * 5 = 60
Therefore, 75% of this number is 60.
An upscale resort has built its circular swimming pool around a central area that contains a restaurant. The central area is a right triangle with legs of 60 feet, 120 feet, and approximately 103.92 feet. The vertices of the triangle are points on the circle. The hypotenuse of the triangle is the diameter of the circle. The center of the circle is a point on the hypotenuse (longest side) of the
The center of the circle, and consequently the central point of the resort's swimming pool, is located at the intersection of the two legs of the right triangle, approximately 60 feet from one vertex and 120 feet from the other.
The upscale resort has ingeniously designed its circular swimming pool to encompass a central area containing a restaurant. This central area takes the form of a right triangle with legs measuring 60 feet and 120 feet, while the hypotenuse, the longest side of the triangle, spans approximately 103.92 feet. The vertices of the triangle neatly coincide with points on the circumference of the circular pool.
Due to the properties of a right triangle, the hypotenuse is also the diameter of the circle. This means that the circular pool is precisely constructed around the right triangle, with its center located at the midpoint of the hypotenuse.
To determine the exact coordinates of the center of the circle, we can consider the properties of right triangles. Since the legs of the right triangle are perpendicular to each other, the midpoint of the hypotenuse coincides with the point where the two legs intersect.
In this case, the center of the circle is the point of intersection between the 60-foot leg and the 120-foot leg of the right triangle.
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1/4 + 4/3b + 7/12 simplified answer please
Answer:
10/12 +4/3b
Step-by-step explanation:
pleaseeee?? i need the answer
Answer:
look at the photo............
Answer:
x = -3
Step-by-step explanation:
\(\frac{7 - 3x}{2} = 8\)
Multiply both sides by 2, to eliminate the denominator on the left-hand side:
\((2) [\frac{7 - 3x}{2}] = 8 (2)\)
7 - 3x = 16
Next, subtract both sides by 7:
7 - 7 - 3x = 16 - 7
-3x = 9
Divide both sides by -3 to solve for x:
\(\frac{-3x}{-3} = \frac{9}{-3}\)
x = -3
Ivanna played with her dog from 1:25 PM to 2:08 PM.
How long did she play with her dog?
Write your answer in minutes.
answer
43 minutes
explanation
:)
A boat is heading towards a lighthouse, whose beacon-light is 113 feet above thewater. From point A, the boat's crew measures the angle of elevation to the beacon,10°, before they draw closer. They measure the angle of elevation a second time frompoint B at some later time to be 21°. Find the distance from point A to point B.Round your answer to the nearest foot if necessary.
The following picture represents an explanation to the given question:
CD represents the beacon
We need to find the distance AB
The measure of the angle C = 90
At the triangle BCD,
The measure of the angle CDB = 90 - 21 = 69
Using the sine law, we will find the length of BD
So,
\(\begin{gathered} \frac{BD}{\sin90}=\frac{CD}{\sin 21} \\ BD=CD\cdot\frac{\sin90}{\sin21}=\frac{CD}{\sin 21} \end{gathered}\)At the triangle ABC
The measure of the angle CDA = 90 - 10 = 80
So, the measure of the angle ADB = angle CDA - angle CDB = 80 - 69 = 11
At the triangle ADB, using sin law:
\(\begin{gathered} \frac{AB}{\sin D}=\frac{BD}{\sin A} \\ \\ AB=BD\cdot\frac{\sin D}{\sin A}=BD\cdot\frac{\sin 11}{\sin 10} \end{gathered}\)substitute with the value of BD and CD s
So,
\(AB=\frac{CD}{\sin21}\cdot\frac{\sin11}{\sin10}=\frac{113\cdot\sin 11}{\sin 21\cdot\sin 10}=346.4798\)Rounding the answer to the nearest foot
So, the answer will be AB = 346 ft
In constructing a confidence interval for a mean with unknown variance with a sample of 25 items, Beth used z instead of t. "Well, at least my interval will be wider than necessary, so it was a conservative error." said she Is Beth's statement correct? Multiple Choice Yes It depends on u. O No.
Beth's statement is incorrect.
The main answer: No.
Is Beth's statement about using z instead of t correct?Using the z-distribution instead of the t-distribution when constructing a confidence interval for a mean with unknown variance can lead to an incorrect interval width. The t-distribution takes into account the sample size, which is particularly important when the sample size is small. By using the z-distribution, which assumes a large sample size or known variance, the resulting interval may be narrower than necessary. This means that the interval might not capture the true population mean with the desired level of confidence.
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Solve for x in your the equation
x^2 + 10x + 12 = 36
The solutions to the equation \(x^2 + 10x + 12 = 36\) By factoring or applying the quadratic formula, we find the solutions: x = -4 and x = 6. Hence, the values of x that satisfy the equation are -4 and 6.
To solve the equation \(x^2 + 10x + 12 = 36\), we'll follow these steps:
36 should be taken out of both sides of the equation.
\(x^2 + 10x + 12 - 36 = 0\)
Simplifying the left side, we get:
\(x^2 + 10x - 24 = 0\)
To factor the quadratic equation, we need to find two numbers whose sum is 10 (coefficient of x) and whose product is -24 (constant term). These numbers are 4 and -6.
Rewrite the quadratic equation using the found numbers:
(x + 4)(x - 6) = 0
Use the zero product property, which specifies that at least one of the components must be zero if the product of two factors is zero. Set each element to zero and then calculate x as follows:
x + 4 = 0 or x - 6 = 0
For x + 4 = 0:
x = -4
For x - 6 = 0:
x = 6
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HI CAN SOMEONE HELP ME WITH THIS ASAP PLS TY
Martina drove 440 miles in 8 hours. At the same rate, how long would it take her to drive 605 miles?
Answer:
\(x=11\)
Step-by-step explanation:
\(\frac{440}{8} =\frac{605}{x}\)
\(440x=605(8)\)
\(440x=4840\)
\(x=11\)
HELPPP ILL GIVE BRAINIEST
The calculated value of x given that the streets are parallel to each other is 4760 feet
How to determine the value of xGiven that the street are parallel to each other
We have the following equivalent ratio that can be used to calculate x
x : 2640 = 2380 : 1320
Express the ratio as fraction
So, the above ratio becomes the following equation
x / 2640 = 2380 / 1320
Solving further, we multiply both sides of the equation by 2640
So, we have
2640 * x / 2640 = 2380 / 1320 * 2640
Evaluate the products
x = 4760
Hence, the value of x is 4760 ft
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Bruno is designing his next skateboard. The skateboard store has 3 types of grip tape, 13 types of decks, 7 types of trucks, 4 types of bearings, and 2 types of wheels. How many different skateboards can Bruno create? Assume each skateboard will contain only one type of each component.
Answer:
2184 different combinations
Step-by-step explanation:
To find how many different combinations are possible, multiply all of the values:
3 * 13 * 7 * 4 * 2 = 2184 different combinations
Answer:
2,184 different skateboards.
Step-by-step explanation:
You would have to multiply
3 x 13 x 7 x 4 x 2 = 2184
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Kiku is planning to visit her nephew in glenville. She knows that the distance from her hometown to glenville is 42 miles
Answer: 42miles to her nephew
Including a 6% sales tax, a new bike costs $514.1. Find the cost of the bike before
tax.
the cost of the bike before tax
514.1/106%=$485
Connie’s team won 12 out of 16 games this season what percentage of game did her team lose
Connie's team lost 4 out of 16 games this season. To calculate the percentage of games lost, we can divide the number of games lost by the total number of games and then multiply by 100.
In this case, 4 divided by 16 is equal to 0.25, or 25% as a percentage. Therefore, Connie's team lost 25% of their games this season.
We first note that the total number of games played is 16. Connie's team won 12 of these games, so the number of games they lost is 16 - 12 = 4. To calculate the percentage of games lost, we divide the number of games lost by the total number of games and then multiply by 100. This gives:
(4 / 16) * 100 = 25%
Therefore, Connie's team lost 25% of their games this season.
It is important to understand how to calculate percentages in order to solve problems like this. In this case, we used the formula:
percentage = (part / whole) * 100
where the "part" is the number of games lost and the "whole" is the total number of games played. By substituting the appropriate values into this formula, we were able to calculate the percentage of games lost by Connie's team.
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pls help with my homework
Answer:
A
y=3x+11
Step-by-step explanation:
The slope of the line perpendicular to y=-1/3x-4 is 3, and A is the only choice with the slope of 3.
i need the termm . THANK UUU
Answer:
4
Step-by-step explanation:
According to the square, we should multiply the respective row by the respective column.
2x * x = 2x^2
2x * 1 = 2x
4 * x = 4x
For the blank we should multiply one by four.
1 * 4 = 4
The blank should be 4.
Hope this helps.
room is 32 ft by 40 ft. She needs to make a scale of her room that is 8 in. by 10 in. What is the scale she needs to use?
Max invested $5700 into Brandon's new business where he will earn interest on his investment. After 7 years Max's investment is worth $13300. What is the Total Return on Max's Money? ROUND YOUR ANSWER TO 1 DECIMAL PLACE. The total return is %
Answer: 133.33%
Step-by-step explanation:
Max invested $5,700 into the new business.
After 7 years this came out to be $13,300.
The total return is calculated as:
= [(Ending investment amount - Beginning investment amount) / Beginning investment amount] * 100
= [(13,300 - 5,700) / 5,700] * 100
= 133.33%
your car travels 308 miles on 11 gallons of gasoline. how many miles can it travel with 1 gallon of gas
Answer:
28 miles
Step-by-step explanation:
308/11 = 28 miles per gallon of gas
What are the angles to this question
Answer:
a) 54
b) 63
c) 63
d) 36
e) 27
f) 54
m) 72
Step-by-step explanation:
Write the equation of the line which contain the point (1, 2) and slope = - 4 .
Step-by-step explanation:
y=mx+c
2=(-4)(1)+c
2=-4+c
c=2+4
c=6
therefore the answer is...
y=-4x+6
45% of what number is 7.2
Hello!
45% of x = 7.2
45x/100 = 7.2
45x = 7.2 * 100
45x = 720
x = 720/45
x = 16
the number = 16
Soledad buys 5 ounces of frozen yogurt for $2.25. What is the unit price of the frozen yogurt in dollars per ounce?
Answer:
0.45
Step-by-step explanation:
You divided 2.25 by 5