Asmall island ist am from the nearest point on the straight shine of a large if a woman on the island cartow a boat 3 kmh and can walk where should the boot belanded in order to arrive at a town 12 km down the shore from Pintere? The boat should be aded down the shore from (Type an exacta)
To determine the landing point, we need to balance the time it takes to row the boat with the time it takes to walk.
The woman's rowing speed is 3 km/h, and her walking speed is denoted as w km/h. Let d be the distance from the island to the landing point, and x be the distance she needs to walk from the landing point to reach the town. The total time for rowing (d/3) should be equal to the total time for walking [(12 - x)/w] in order to arrive at the town.
By rearranging the equation, we find that the landing point should be 12 km minus the distance covered by walking (d * w) divided by 3.
The exact value of x depends on the specific distances involved and the woman's walking speed, which are not provided in the given information.
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Determine whether the series is convergent or divergent by expressing sn as a telescoping sum (as in Example 8).un =Σ n = 4 [infinity] 8/n^2 − 1
To determine whether the series Σn=4[infinity]8/n^2 − 1 is convergent or divergent, we need to express sn as a telescoping sum.
First, we need to write out a few terms of the series to see if we can spot a pattern:
u4 = 8/4^2 - 1 = 1/3
u5 = 8/5^2 - 1/4^2 = 39/60
u6 = 8/6^2 - 1/5^2 = 77/120
Notice that each term has a denominator of the form (n+1)(n-1). We can use partial fractions to write each term as:
un = A/(n-1) - B/(n+1)
Multiplying both sides by (n-1)(n+1), we get:
un = A(n+1) - B(n-1)
Now we need to solve for A and B. Let's start with A:
u4 = A(5) - B(3) = 1/3
And now B:
u6 = A(7) - B(5) = 77/120
Solving for A and B, we get:
A = 1/2
B = 1/2
Now we can express sn as a telescoping sum:
sn = u4 + u5 + u6 + ... + un
= (1/2)((5/3) - (3/5)) + (1/2)((6/4) - (4/6)) + ... + (1/2)((n+1)/n - (n-1)/(n+1))
Notice that most of the terms cancel out, leaving us with:
sn = (1/2)(5/3 + 6/4 + ... + (n+1)/n) - (1/2)(3/5 + 4/6 + ... + (n-1)/(n+1))
Both of the series inside the parentheses are telescoping sums, which means they converge. Therefore, sn also converges.
Hi! To determine if the given series is convergent or divergent, let's express it as a telescoping sum using partial fraction decomposition. The series is:
u_n = Σ (8 / n^2 - 1) for n = 4 to infinity.
Using partial fraction decomposition, we can rewrite 8 / (n^2 - 1) as:
8 / (n^2 - 1) = A / (n - 1) + B / (n + 1)
8 = A(n + 1) + B(n - 1)
Now, we'll find the values of A and B:
Let n = 1: 8 = 2A => A = 4
Let n = -1: 8 = -2B => B = -4
So, our decomposition becomes:
u_n = Σ [4 / (n - 1) - 4 / (n + 1)] for n = 4 to infinity.
Now, let's find the telescoping sum:
s_n = Σ (u_k) for k = 4 to n
= (4/3 - 4/5) + (4/4 - 4/6) + ... + (4/(n-1) - 4/(n+1))
When we sum the series, we observe that consecutive terms cancel out:
s_n = 4/3 - 4/(n+1)
Now, we'll check the convergence or divergence of the series as n approaches infinity:
lim (s_n) as n→∞ = lim (4/3 - 4/(n+1)) as n→∞
Since the second term 4/(n+1) approaches 0 as n approaches infinity, the limit converges to 4/3.
Therefore, the series is convergent.
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which statement(s) correctly describe the coefficient of multiple determination (r2)? select all that apply. multiple select question. it can range from 0 to 1. it can range from -1 to 1. it is the percent of explained variation. it is the same as the correlation coefficient.
The coefficient of multiple determination is describe as it ranges from
0 to 1.
As given in the question,
Explanation about coefficient of multiple determination is as follow:
Coefficient of determination is represented as the square of the correlation.In case of linear regression also, coefficient of determination is represented by the square of the correlation between two given variables.If the coefficient of determination R2 is equal to 0 then value of dependent variable cannot be predicted using independent variable.Coefficient of determination is ranges from 0 to 1.Therefore, the coefficient of multiple determination is ranges from 0 to 1.
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PLEASE SOLVE THIS ASAP
Answer:
Step-by-step explanation:
Please give me answer to the question
This is all of my points
Answer:
It will be the answer , i think
Step-by-step explanation:
Let me know if it was wrong or you wanted further explanation .
PLEASE HELP ME, IM BEGGING, IM ACTUALLY GOING TO CRY IF I GET THIS WRONG. A family camping in a national forest builds a temporary shelter with a tarp and a 4-foot pole. The bottom of the pole is even with the ground, and one corner is staked 5 feet from the bottom of the pole. What is the slope of the tarp from that corner to the top of the pole?
Which are steps in the process of completing the square used to solve the equation 3 – 4x = 5x2 – 14x? Check all that apply.
3 = 5(x2 + 2x)
3 = 5x2 – 10x
4 = 5(x2 – 2x + 1)
8 = 5(x2 – 2x + 1)
3 = 5(x – 1)2
4 = 5(x – 1)2
StartFraction 8 Over 5 EndFraction = (x – 1)2
Answer:
1. 3 = 5x2 – 10x
2. 8 = 5(x2 – 2x + 1)
3. StartFraction 8 Over 5 EndFraction = (x – 1)2
Step-by-step explanation:
3-4x=5x^2-14x
3=5x^2-14x+4x
3=5x^2-10x
5x^2-10x-3=0
1. 3 = 5x2 – 10x
2. 8 = 5(x2 – 2x + 1)
8=5x^2-10x+5
8-5=5x^2-10x
3=5x^2-10x
3. StartFraction 8 Over 5 EndFraction = (x – 1)2
8/5=x^2-2x+1
Cross product
8=5(x^2-2x+1)
8=5x^2-10x+5
8-5=5x^2-10x
3=5x^2-10x
Answer:
3 - 4x = 5x2 - 14x
= 3 - 5x2 = - 14x + 4x
= 3 - 10 = 10x
= 7 = 10x
= x = 7/10
= x = 0.7
Step-by-step explanation:
Tameka owes 4 of her friends $20 each. How much money does tameka owe in total ?
Answer:
80
Step-by-step explanation:
Answer:
80$
Step-by-step explanation:
1 friend=20$
20$+20$+20$+20$
AKA 20x4
=80
Which of the following is NOT an arithmetic sequence?
Answer:
2,4,8,16,32
Step-by-step explanation:
Arithmetic sequences are when a number is added constantly. An example will be 1,2,3,4,5.
In this case, the answer is 2,4,8,16,32 because it is multiplied not added. Therefore, this is the correct answer.
If this helps please mark as brainliest
If P is the circumcenter of triangle ABC, find the measure of DP
Answer:
19
Step-by-step explanation:
If I'm being honest I just looked it up.
What angle is vertical to angle 2
Answer:
i believe the answer is 4
The percentage 21 is of 28 is equal to the percentage 30 is of 40 is
True or false
Answer:
No
Step-by-step explanation:
75%
21
28 5.88
21 x 28
100
= 5.88
x 100% = 75%33.3333333333%
28 - 21
21
x 100% = 33.3333333333%
Answer:
true
Step-by-step explanation:
in angle abcd if b=50 find the other angles
Answer:
angel abcd is not possible
Answer:
can u show the angels?
Step-by-step explanation:
Find the value of x in this equation. 180-5x=140180−5x=140
Answer: 8
Step-by-step explanation:
8/9 -1/3 i don't know
5/9
brainliest please x
Answer:
5/ 9 ≈0.556
Step by-step explanation:
!!
The graph shows how a store sells peppers by weight at a constant price per pound
Which of these statements is true?
Pepers)
Peppers cost $9 per pound,
The unitenst for peppers is $4,50 per pound,
You could get 2 pounds of peppers for $12
Peppers cost 84 per pound,
Answer:?
Step-by-step explanation: did u get the answer
Answer:
Step-by-step Peppers cost $4 per pound
explanation:
Write the number five million four thousand three hundred in standard form.
Answer:
5,004,300
Step-by-step explanation:
You are given the numbers {32 + n, n/8, and \sqrt{n + 23}. Find the smallest value of n so that all of the numbers in the set are natural numbers
The value of n that makes all of the numbers in the set {32 + n, n/8, and √(n + 23)} natural numbers is n = 63.
To find the smallest value of n so that all of the numbers in the set {32 + n, n/8, and √(n + 23)} are natural numbers, we need to determine the factors of the given numbers. We know that a natural number has no fractional part and is greater than or equal to 1.
We can find the smallest value of n by taking the Least Common Multiple (LCM) of the denominators of the fractions in the given set. So, let's begin:1. 32 + n = natural number
If n = 0, then 32 + n = 32, which is not a natural number. If n = 1, then 32 + n = 33, which is a natural number. Therefore, the value of n that makes 32 + n a natural number is n = 1.2. n/8 = natural number
If n is a multiple of 8, then n/8 is a natural number. Therefore, the value of n that makes n/8 a natural number is any positive multiple of 8.3. √(n + 23) = natural number
If n + 23 is a perfect square, then √(n + 23) is a natural number. Therefore, the value of n that makes √(n + 23) a natural number is any number that is 1 less than a perfect square.
We need to find the smallest value of n that satisfies all three conditions above. The LCM of 8 and 1 is 8. The smallest multiple of 8 that is 1 less than a perfect square is 63. Thus, the smallest value of n is 63.
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-3x + b = 6x
solve for x
Answer:
x = 1/9(b)
Step-by-step explanation:
Step 1: Subtract 6x from both sides.
\(-3x + b - 6x = 6x - 6x\) \(-9x + b = 0\)Step 2: Subtract b from both sides.
\(-9x + b - b = 0 - b\) \(-9x = -b\)Step 3: Divide both sides by -9.
\(\frac{-9x}{-9}= \frac{-b}{-9}\) \(x = \frac{1}{9}b\)Therefore, \(x = \frac{1}{9}b\).
I need help with problem 9
Answer: The triangles are not congruent.
Step-by-step explanation:
We are given that the two triangles both contain a congruent angle and two congruent sides. The triangles have two congruent sides with a non-included congruent angle among them.
However, because the two triangles only have two congruent sides, and the angle shared by each triangle is not included between the two sides, the triangle would be "congruent" by SSA, which is not a triangle congruency theorem or postulate.
Therefore, the two triangles are not congruent.
I hope this helps!
Calculate the method of moments estimate for the parameter θ in the probability function p X
(k;θ)=θ k
(1−θ) 1−k
,k=0,1 if a sample of size 5 is the set of numbers 0,0,1,0,1.
The method of moments estimate for the parameter θ in the given probability-function is θ = 0.67.
Given probability function pX(k; θ) = θk(1 - θ)1-k, k = 0, 1;
To find:
Method of moments estimate for the parameter θ for the given sample size of 5, which is a set of numbers {0, 0, 1, 0, 1}
Step-by-step explanation:
Sample size (n) = 5
Number of 1's in the given set = 2
Number of 0's in the given set = 3
Therefore, the sample proportion (p) of getting 1's from the given set is; p = 2/5= 0.4
Now, the sample proportion (p) of getting 1's is equal to the mean (μ) of the given probability function ;p = μ= θ/(1 + θ)
When we solve the above equation for θ, we get;θ = p/(1 - p)= 0.4/(1 - 0.4)= 0.67 (rounded to two decimal places)
Hence, the method of moments estimate for the parameter θ in the given probability function is θ = 0.67.
The method of moments estimate for the parameter θ in the given probability function is θ = 0.67, for the sample size of 5, which is a set of numbers {0, 0, 1, 0, 1}.
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A savings account increases from $200 to $208. What is the percent increase of the
savings account?
Answer:
4%
Step-by-step explanation:
8/200 = 0.04
Five students bought supplies. Three students each bought 3 pencils and an eraser. Two students eachbought a pen and 2 pencils.SupplypencilCost$0.12$0.52$0.44eraserpenSelect the equation that can be used to find the total cost (c) of the supplies. Mark all that apply.
TIP
pencil =$0.12
Eraser= $0.52
Pen=$0.44
STEP 1
Three students each bought 3 pencils and an eraser.
\(3(3\times0.12+0.52)\)STEP 2
Two students each bought a pen and 2 pencils
\(2(0.44+2\times0.12)\)STEP 3
Total cost
\(C=3(3\times0.12\text{ +0.52) +2(0.44+2}\times0.12)\)THE CORRECT OPTION IS OPTION B
WuT this
2[18 -(5 + 3 to the 2nd power) ÷ 7]
Answer:
32
Step-by-step explanation:
2[18 -(5 + 9) ÷7]
2[18 -14 ÷7]
2[18 -2]
2[16]
32
A grill at Rudy's restaurant will be used to cook sausage links that are2 lb each and briskets that are 8 lb each. No more than 140 lb of sausage links and briskets will be cooked on the grill for a graduation party.
Answer:
Step-by-step explanation:
The first one is correct.
Answer:
The firest one( 2x + 8y ≤ 140 )
Step-by-step explanation:
A study compared the effects of regular-fat cheese to an equal amount of reduced-fat cheese on LDL cholesterol levels. What is/are the dependent variable(s)?
a. regular fat cheese
b. LDL levels
c. reduced fat cheese
d. both a and b
e. both b and c
In the given study comparing the effects of regular-fat cheese to reduced-fat cheese on LDL cholesterol levels, the dependent variable(s) refers to the outcome(s) that are being measured or observed. In this case, the dependent variable in this study is: b. LDL levels
The dependent variable is the variable that is measured or observed to assess the effect of the independent variable(s). In this case, the study is comparing the effects of regular-fat cheese and reduced-fat cheese on LDL cholesterol levels.
LDL cholesterol levels are the outcome being measured to determine the impact of the different types of cheese on cholesterol. Therefore, option b, LDL levels, is the dependent variable in this study. Options a (regular fat cheese) and c (reduced fat cheese) are not the dependent variables but rather the independent variables, as they are the different conditions being compared to assess their effect on LDL levels.
Option d (both a and b) and option e (both b and c) are incorrect because regular-fat cheese (option a) is an independent variable, not a dependent variable.
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Solve for m.
5m+72=−2m+52
Drag and drop the answer into the box.
A. -1
B. -1/7
C.6/7
D.7
Answer: I tried it and my answer was not an option, I got -1/3 sorry
Step-by-step explanation:
I got -20/7. I am sorry .
How can I solve this? ASAP
Answer:
544 in²
Step-by-step explanation:
Find the area of the rectangle, then the triangle, then add them together to get the total SA.
Rectangle = l x w = 10 x 14 = 140 in²
SA of the 2 rectangular sides = 140 x 2 = 280 in²
Triangle = 1/2bh = 1/2(12)(8) = 48²
SA of the 2 triangular ends = 2 x 48 = 96 in²
Rectangular base = 14 x 12 = 168 in²
Total SA = 280 + 96 + 168 = 544 in²
The subject of the formula below is y.
y =x+5
rearrange the formula to make x the subject.
Answer:
x = y - 5
Step-by-step explanation:
Given
y = x + 5 ( isolate x by subtracting 5 from both sides )
y - 5 = x
Answer:
x = y - 5
Step-by-step explanation:
y = x + 5
subtract 5 left and right of the = sign , which gives you the answer.
y - 5 = x + 5 - 5
+5 - 5 = 0 so...
y - 5 = x
re arrange and voila!
x = y - 5
what is r 156 ÷ r = 26
Answer:
r=6
Step-by-step explanation:
156/r=26
All terms are shifted to the left:
156/r-(26)=0
We divide every term by the denominator.
-26*r+156=0
All the numbers and variables are added together.
-26r+156=0
All terms containing r are shifted to the left, and all other terms are shifted to the right.
-26r=-156
r=-156/-26
r=6