Answer:
7.9km
Step-by-step explanation:
(a)See attached for the diagram representing this situation.
(b)
In Triangle ABC
\(\text{Using Law of Sines}\\\dfrac{\sin A}{a}=\dfrac{\sin C}{c} \\\dfrac{\sin A}{5.2}=\dfrac{\sin 58^\circ}{6.8} \\\sin A=5.2 \times \dfrac{\sin 58^\circ}{6.8}\\A=\arcsin (5.2 \times \dfrac{\sin 58^\circ}{6.8})\\A=40.43^\circ\)
Next, we determine the value of Angle B.
\(\angle A+\angle B+\angle C=180^\circ\\40.43+58+\angle B=180^\circ\\\angle B=180^\circ-(40.43+58)\\\angle B=81.57^\circ\)
Finally, we find b.
\(\text{Using Law of SInes}\\\dfrac{b}{\sin B}=\dfrac{c}{\sin C} \\\dfrac{b}{\sin 81.57^\circ}=\dfrac{6.8}{\sin 58^\circ} \\b=\dfrac{6.8}{\sin 58^\circ} \times \sin 81.57^\circ\\b=7.9km $ (to the nearest tenth of a kilometer)\)
The distance between the small plane and the observation tower is 7.9km.
d(n)d, left parenthesis, n, right parenthesis models the duration (in seconds) of the time it took for hailey to run her n^{th}n th n, start superscript, t, h, end superscript lap. nnn 333 777 999 d(n)d(n)d, left parenthesis, n, right parenthesis 858585 999999 110110110
The given expression, \(d(n)d(n)d(n)\), represents the duration in seconds for Hailey to run her \(n^{th}\) lap. The specific values provided, 333, 777, 999, correspond to the durations of the 3rd, 7th, and 9th laps, respectively. The values 858585, 999999, and 110110110 are unrelated and do not provide any additional information about lap durations.
The expression \(d(n)d(n)d(n)\) suggests that each lap duration is represented by the function \(d(n)\), where \(n\) denotes the lap number. The specific values given (333, 777, 999) correspond to the 3rd, 7th, and 9th laps, respectively. However, the remaining values (858585, 999999, 110110110) do not appear to have a direct connection to the lap durations or the function \(d(n)\).
Without further information or a specific pattern, it is difficult to interpret the significance of the remaining values. It's important to note that more context or information about the pattern or relationship between the values would be necessary to provide a more detailed explanation or analysis.
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Please hellllp
Determine the intercepts of the line.
Do not round your answers.
4x1= 3y + 5
x-intercept:
y-intercept:
Answer: x-intercept: 5/4
y-intercept: -5/3
Step-by-step explanation:
We can find the y-intercept by looking at the y = mx + b form, the y-intercept would be b in that form:
4x = 3y + 5
y = 4/3x - 5/3
Next, we plug x into that equation:
We can graph it, or find it mathematically:
Set 4/3x = 5/3
4/3x * 3/4 = 5/3 * 3/4
x = 5/4
find series solution for the following differential equation. your written work should be complete (do not skip steps).y'' 2xy' 2y=0
To find the series solution for the differential equation y'' + 2xy' + 2y = 0, we can assume a power series solution of the form:
Now, substitute y(x), y'(x), and y''(x) into the differential equation:
∑(n=0 to ∞) aₙn(n-1) xⁿ⁻² + 2x ∑(n=0 to ∞) aₙn xⁿ⁻¹ + 2 ∑(n=0 to ∞) aₙxⁿ = 0
We can simplify this equation by combining the terms with the same powers of x. Let's manipulate the equation step by step:
We can combine the three summations into a single summation:
∑(n=0 to ∞) (aₙ₊₂(n+1)n + 2aₙ₊₁ + 2aₙ) xⁿ = 0
Since this equation holds for all values of x, the coefficients of the terms must be zero. Therefore, we have:
This is the recurrence relation that determines the coefficients of the power series solution To find the series solution, we can start with initial conditions. Let's assume that y(0) = y₀ and y'(0) = y'₀. This gives us the following initial terms:
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What is the area of the figure below?
10cm
What is the solution of Vx2+49 = x+5?
0 x = 12
12.
5
12.
X=-
5
x = -6 or x=-3
no solution
Clara's father has a large collection of ties. The table shows how many ties he has of each
color and pattern
plaid 6
blue 2
purple 16
green 3
If Clara's father chose a tie at random, what is the probability that the tie would be plaid?
Write your answer as a fraction or whole number.
Answer:
if Clara's father were to put all of the ties in a bowl, shuffle them, and pick a tie, then the chance of getting a plaid one would be a more significant percentage than the blue and green ties. let's say he will have a 40% chance to make it simple.
The probability of choosing a plaid tie at random is 2/9.
What is Probability?It is a branch of mathematics that deals with the occurrence of a random event.
The total number of ties that Clara's father has is:
total = 6 + 2 + 16 + 3 = 27
The number of plaid ties is:
plaid = 6
Therefore, the probability of choosing a plaid tie at random is:
plaid/total = 6/27 = 2/9
Hence, the probability of choosing a plaid tie at random is 2/9.
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help me please i will give brainiest
Answer: 3054 in^3
Step-by-step explanation: The formula for the volume of a sphere is V = 4/3 pi r^3, where r is radius.
Since the diameter is 18in, the radius would be 1/2 or 9in, and plugged in V is
V = 4/3(3.1415)(9)^3
Answer:
1/6*π*18^3≈3053.62806
Step-by-step explanation:
18) Mala gave Kamala half the number of sweets she had. She then had 7 sweets left. How many sweets did Mala have at the start?
Answer:
Mala had 14 sweets at the start.
Step-by-step explanation:
7 x 2 = 14
To check, 14/2 = 7. (Dividing by 2 is the same as multiplying by 1/2)
Show that the process X(t):=e t/2
cos(W(t)),0≤t≤T, is a martingale w.r.t. any filtration for Brownian motion and represent it as an Itô process on any time interval [0,T],T>0.
A stochastic process X(t) is called a martingale if the expected value of X(t) given all information available up to and including time s is equal to the value of X(s).
Thus, to show that the process X(t):=e^(t/2)cos(W(t)), 0 ≤ t ≤ T is a martingale w.r.t. any filtration for Brownian motion, we need to prove that E(X(t)|F_s) = X(s), where F_s is the sigma-algebra of all events up to time s.
As X(t) is of the form e^(t/2)cos(W(t)), we can use Itô's lemma to obtain the differential form:dX = e^(t/2)cos(W(t))dW - 1/2 e^(t/2)sin(W(t))dt
Taking the expectation on both sides of this equation gives:E(dX) = E(e^(t/2)cos(W(t))dW) - 1/2 E(e^(t/2)sin(W(t))dt)Now, as E(dW) = 0 and E(dW^2) = dt, the first term of the right-hand side vanishes.
For the second term, we can use the fact that sin(W(t)) is independent of F_s and therefore can be taken outside the conditional expectation:
E(dX) = - 1/2 E(e^(t/2)sin(W(t)))dt = 0Since dX is zero-mean, it follows that X(t) is a martingale w.r.t. any filtration for Brownian motion.
Now, let's represent X(t) as an Itô process on the interval [0,T]. Applying Itô's lemma to X(t) gives:
dX = e^(t/2)cos(W(t))dW - 1/2 e^(t/2)sin(W(t))dt= dM + 1/2 e^(t/2)sin(W(t))dt
where M is a martingale with M(0) = 0.
Thus, X(t) can be represented as an Itô process on [0,T] of the form:
X(t) = M(t) + ∫₀ᵗ 1/2 e^(s/2)sin(W(s))ds
Hence, we have shown that X(t) is a martingale w.r.t. any filtration for Brownian motion and represented it as an Itô process on any time interval [0,T], T > 0.
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draw up your own Venn Diagram with three circles labelled ‘COLD BLOODED ANIMALS’,‘WARM BLOODED ANIMALS’ and ‘FISHES’ to illustrate the statement ‘All fishes are cold blooded animals. Some, but not all, cold blooded animals are fishes’. Note: Not all fishes are cold blooded, but for the purpose of the question you may regard them as cold blooded.
The figure shows the Venn diagram for the given data.
What is a Venn diagram?A diagram depicting mathematical or logical sets pictorially as circles or closed curves within an enclosing rectangle (the universal set), common elements of the sets being represented by the areas of overlap among the circles.
As per the given data:
Let's denote:
COLD BLOODED ANIMALS = C
WARM BLOODED ANIMALS = W
FISHES = F
Given:
All fishes are cold blooded animals.
Some, but not all, cold blooded animals are fishes
The Venn diagram will be as in the figure.
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Can I get help wit my second question
a ball of radius 13 has a round hole of radius 3 drilled through its center. find the volume of the resulting solid.
a ball of radius 13 has a round hole of radius 3 drilled through its center. then the volume of the resulting solid is 8.5528 x 10³ units³
The radius of the ball is 13 units.
Its volume is
V₁ = (4π*13³)/3
= 9.2028 x 10³ units³
The drilled hole has the approximate shape of a solid cylinder with radius = 3 and length = 26. Its volume is
V₂ = π*(3²)*26
= 0.650 x 10³ units³
The volume of the resulting solid is
V₁ - V₂ = 8.5528 x 10³
Answer: 8.5528 x 10³ units³
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Let A and M be n×n matrices. If AM=4In then M−1
○4 A
○None of the mentioned
○1/4A
○does not exist
Given that AM = 4In, where A and M are n×n matrices.
We need to find M−1.So, first of all, we need to multiply by A-1 on both sides of AM=4
In to obtain M=A-1(4In).
Now, we can multiply on both sides by M-1 to obtain M-1M=A-1(4In)M-1.
Here, we know that MM-1=In and also A-1A=In.
So, we have In=A-1(4In)M-1On further solving, we get
M-1=1/4 A-1
This shows that option (C) 1/4A is the correct answer.
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Which function is shown in the graph?
Answer:
1st option
Step-by-step explanation:
This is for my question I asked earlier because the picture was blurry
if you run for 30 mintes at a speed of 8 miles per hour how many feet wpuld you hav erun
Answer:
not sure if this is correct but i tried (1267200 feet)
Answer:
21120 ft
Step-by-step explanation:
We need to change 8 miles per hour to feet per minute
8 miles 5280 ft 1 hour
----------- * ---------- * ----------
hour 1 mile 60 minutes
704 ft/ minute
Now multiply by 30 minutes
704 ft / minute * 30 minutes =21120 ft
i need help, due today please lol
thank u
A: Domain: (1.25,0) Range: (0,1)
B: Domain: −2≤x≤2 Range: −2≤y≤3
C: Domain: −2≤x≤3 Range:−2≤y≤2
D: Domain: −4≤x≤4 Range: −4≤y≤4
E: Domain: −2≤x≤2 Range: −3≤y≤3
Answer:
The answer is B, Domain: −2≤x≤2 Range: −2≤y≤3
Step-by-step explanation
Anyone want a BRAINLIEST, 60 POINTS?!?!? THEN PLZ HELP ME FIRST CORRECT ANSWER GETS BRAINLIEST
Compare rates of change.
The equation below can be used to find the length of a foot or forearm when you know one or the other.
(length of the foot) = 0.860 • (length of the forearm) + 3.302
If you let y = length of the foot and x = length of the forearm, this equation can be simplified to
y = 0.860x + 3.302.
Using this equation, how long would the foot of a person be if his forearm was 17 inches long?
What is the rate of change of the equation from Part A?
Compare the equation from Part A to your data. Are they the same? Which has a greater rate of change? Why do you think the values are different?
Is the relation in your data a function? Why or why not? Could the equation in Part A represent a function? Why or why not? Explain your answer.
Answer:
Step-by-step explanation:
y=0.860x17+3.302
foot is 17.992 inches long
Unfortunately, I don't have access to your data so i can't give a solid answer. However, I can tell you that if your coefficeint (number before x) is greater than 0.86, you have a greater rate of change. If its smaller, its a lower rate of change.
Answer: 17.922
Step-by-step explanation:
An airport parking lot charges a basic fee of $2 plus $1 per half-hour parked. Write an equation for the total charge, c,in terms of the number of half-hours parked,h.
Answer:
$1h + $2
Step-by-step explanation:
Translate the sentence into an equation.
Four more than the quotient of a number and 8 equals 2.
Use the variable w for the unknown number.
Answer:
4 + w/8 = 2
Step-by-step explanation:
To Solve:
subtract 4 from each side to get:
w/8 = -2
cross-multiply to get:
w = -16
Check:
4 + (-16/8) = 2
4 + (-2) = 2
2 = 2
-7+(-11)
Find the sum
Answer:
-7-11=-18
Step-by-step explanation:
as the sample size increases, the distribution of the sample proportion becomes more normal. this fact is due to
the Central Limit Theorem, which states that as the sample size increases, the sampling distribution of the sample mean tends to become more normal.
The Central Limit Theorem states that as the sample size increases, the sampling distribution of the sample mean tends to become more normal. This means that the mean of the sample will be closer to the mean of the population, and the variability of the sample will be smaller. Since the sample proportion is just the mean of the sample, as the sample size increases, the distribution of the sample proportion will also become more normal. The larger the sample size, the more likely it is that the sample will accurately represent the population, and the more normal the distribution of the sample proportion will be. In other words, the sample proportion will be closer to the true population proportion, and the variability of the sample proportion will be smaller.
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Write the quadratic equation 3x ^ 2 - 9x = 5 standard form ax²+bx+c=0? in the
A) 3x ^ 2 - 9x + 5 = 0
B) 3x ^ 2 - 9x - 5 = 0
C) 3x ^ 2 + 9x - 5 = 0
D) 3x ^ 2 + 9x + 5 = 0
Subtract 11b^2 - 4b + 7 from b^2 + 8b - 9 ?
Subtract 11b^2 - 4b + 7 from b^2 + 8b - 9 ?
That is
\(b^2+8b-9-(11b^2-4b+7)=b^2+8b-9-11b^2+4b-7\)Collecting like terms we have
\(b^2+8b-9-(11b^2-4b+7)=b^2-11b^2+8b+4b-9-7=-10b^2+12b-16\)Hence the result of the subtraction is
\(-10b^2+12b-16\)if we allowed the number of edges between any two nodes to be more than two - i.e. there are 7 roads from city a to city b and 5 roads from city b back to city a and so on, like that for many of the other cities, then which of the two data structures we used for our graph problems, would be able to accurately store that graph information?
If we allow the number of edges between any two nodes to be more than two, we would need to use the adjacency matrix to accurately store that graph information.
The adjacency matrix is a matrix representation of a graph where the rows and columns represent the vertices and the values in the matrix represent the number of edges between two vertices.
In this case, we could have values greater than 1 in the matrix to represent multiple edges between two vertices.
On the other hand, the adjacency list data structure would not be able to accurately store this information, as it represents each vertex and its adjacent vertices in a linked list format.
It would be difficult to represent multiple edges between two vertices using this data structure.
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andace had scores of 96, 84, 95, and 82 on her first four exams of the semester. what score must she obtain on the fifth exam to have an average of 90 or better for the five exams
Andace needs to score at least 98 on her fifth exam to have an average of 90 or better for the five exams.
To find out what score Andace needs to get on the fifth exam, we can use the formula for the average (also known as the mean):
Average = (sum of all scores) / (number of scores)
We know that Andace needs an average of 90 or better for the five exams. Therefore, the sum of all five scores must be at least 450 (90 multiplied by 5).
The sum of Andace's first four scores is:
96 + 84 + 95 + 82 = 357
To get an average of 90 or better for the five exams, Andace needs to get a total of:
450 - 357 = 93
on her fifth exam.
Since she has already taken four exams and the maximum score she can get on her fifth exam is 100, we can subtract her first four scores from 93 to find out what she needs to score on her fifth exam:
93 - 96 - 84 - 95 - 82 = -164
Since it's not possible for Andace to score a negative number on her fifth exam, we can conclude that she needs to score at least 98 (93 - 5) to have an average of 90 or better for the five exams.
In conclusion, Andace needs to score at least 98 on her fifth exam to have an average of 90 or better for all five exams.
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I need helpBarbara works at a law office as an entry level lawyer. She spends 2/5 of her time at the law office doing paper work. How many hours does she have to work to spend 10 hours doing paper work.
GIVEN:
We are told that Barbara works 2/5 of her time doing paper work and this fraction represents 10 hours of her total working time.
Required;
To determine how many hours she will have to work in order to have 10 hours doing paper work.
Step-by-step solution.
Take note that her entire working hours is represented by 1 whole since, a fraction of it has already been identified as two-fifths.
This means
\(\frac{2}{5}\times h=10\)Take note that the fraction is taken as two-fifths of the total hours h and, if multiplied by the total hours, we would get 10 hours.
Hence, if we simplify the above equation, we would get the value of h as follows;
\(\begin{gathered} \frac{2}{5}\times h=10 \\ \\ Cross\text{ }multiply: \\ \\ h=\frac{10\times5}{2} \\ \\ h=25 \end{gathered}\)Therefore,
ANSWER:
Barbara has to work for 25 hours in order to spend 10 hours on paper work.
what is the mean absolute deviation of 12 4 6 12 10 8 4 4
Answer:
Step-by-step explanation:
4+4+4+6+8+10+12+12=62
62/8=7.75
7.75-4=3.75 7.75-6=1.75 7.75-8 =0.25 7.75-10=2.25 7.75-12-4.25
3.75+3.75+3.75+1.75+0.25+2.25+4.25+4.25=24
24/8=3
MAD=3
The mean absolute deviation of the given data set is 3.
What is the mean absolute deviation?The average distance between an observation's mean and its variance is shown by the mean absolute deviation, a measure of variability. mean makes understanding simpler by using the data's original units. A wider deviation from the average is reflected by larger values. Lower values, on the other hand, are related to information points aggregating around them. The mean absolute deviation is sometimes referred to as the average absolute deviation and the mean deviation.
The given data set is 12 4 6 12 10 8 4 4
Mean of this data set is (4+4+4+6+8+10+12+12)/8=62/8 = 7.75
⇒7.75-4=3.75 7.75-6=1.75 7.75-8 =0.25 7.75-10=2.25 7.75-12-4.25 3.75+3.75+3.75+1.75+0.25+2.25+4.25+4.25=24
So mean absolute deviation will be 24/8 = 3.
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Please help me ASAP.
Answer:
I believe the answer is D
Step-by-step explanation:
Anyone ?? Know the answers to these both? Due tmr morning
Answer:
Just use m a t h w a y for the answer
Step-by-step explanation:
Thank me later,or dont thank me at all