The sample size required to estimate the fraction of people who are captured after appearing on the 10 most wanted list is 228.
Given standard deviation of 0.26 ,margin of error of 0.04, and confidence interval of 98%.
We have to determine the sample size required to estimate the fraction of people who are captured after appearing on the 10 ost wanted list.
We can find the sample size with the help of margin of error.
Margin of error is the difference between the calculated values and real values.
Margin of error=z*σ/[tex]\sqrt{n}[/tex]
where σ is standard deviation,
n is sample size and z is critial z value.
We have to find the z value for 98% confidence level from z table.
z value=2.326.
Put the values in the formula of margin of error.
0.04=2.326*0.26/[tex]\sqrt{n}[/tex]
[tex]\sqrt{n}[/tex]=2.326*0.26/0.04
[tex]\sqrt{n}[/tex]=15.119
squaring both sides we get
n=228.58
By rounding we get
n=228.
Hence the sample size needed is 228.
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Consider the diagram.
Triangles L O N and L M N share side L N. Sides O L and M L are congruent. Sides O N and N M are congruent.
The congruence theorem that can be used to prove △LON ≅ △LMN is
SSS.
ASA.
SAS.
HL
The congruence theorem that proves that △LON ≅ △LMN is: A. SSS congruence theorem
What is the SSS Congruence Theorem?According to the SSS congruence theorem, if all three corresponding sides of two triangles are congruent, then both triangles are congruent.
In the image given, we have:
ON ≅ MN LO ≅ LMLN ≅ LN (reflexive property)This means all three corresponding sides are congruent, therefore, the congruence theorem that proves both triangles are congruent is:
A. SSS.
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Answer: Option 1 or A. SSS
Step-by-step explanation: The congruence theorem that can be used to prove △LON ≅ △LMN is SSS.
Trust me!
If you are working on Edge the answer is correct. The proof is down below. I hope someone finds this helpful.
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If < A and < B form a linear pair, and m< A = x - 21 degrees, and m< B = x + 15 degrees, then find x.
The value of x = 93 degree and value of angle A and B is 72 , 108 degree
What is a Linear Pair ?The pair of triangles that are supplementary and they add to form 180 degree angle are called Linear Pairs.
It is given that
∠ A = x -21
∠ B = x+15
also it is given that
angle A and B form a linear pair
∠ A + ∠ B = 180 degree
To find the value of x
x -21 + x+15 = 180
2x - 6 = 180
2x = 186
x = 93 degree
so
∠ A = x -21 = 93 -21 = 72 degree
∠ B = x+15 = 93+21 = 108 degree
Therefore the value of x = 93 degree and value of angle A and B is 72 , 108 degree.
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The legths of the sides of a rectangle are in a ratio of 4:7. If the length is 31.5 in., find the width, perimeter an area of this rectangle.
Step-by-step explanation:
when given a ratio like this 4:7, it means that one item represents 4 units, and the other 7 units.
let's assume that length is larger than width, so the given 31.5 in are these 7 units.
that means 1 ratio unit is
31.5 / 7 = 4.5 in
the width is 4 units, therefore
width = 4×4.5 = 18 in
the perimeter is
2×length + 2×width = 2×31.5 + 2×18 = 63 + 36 = 99 in
the area is
length × width = 31.5×18 = 567 in²
eric borrowed 5,000 to buy a used car. he agreed to make monthly payments of 175.00 for 36 months how much will how actually pay the bank? A.5,000 B.5,176 C.6,146 D. 6,336
The actual payment Eric made to the bank at 175.00 for 36 months is 6,300
Actual paymentAmount borrowed = 5,000Monthly payment = 175.00Number of months = 36Actual payment to bank = Monthly payment × Number of months
= 175.00 × 36
= 6,300
Therefore, the actual payment made to the bank is 6,300.
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According to aaa chicago what percentage of crashes involving teen drivers are instigated by distractions like using cell phones, reaching for objects or socializing?.
According to AAA Chicago, 58 percentage of crashes involving teen drivers are instigated by distracted driving.
What does AAA study tell about the distracted driving of teens?
According to the AAA Foundation for Traffic Safety's review of over 1,700 crash films, distracted driving causes 58 percent of car accidents involving juvenile drivers. According to the foundation, this figure is four times higher than earlier projections derived from police records.
The investigation identified 12 different kinds of distracted driving that contributed to collisions, with passenger interaction accounting for 15% of crashes. Twelve percent of the collisions were caused by using a cellphone, which was followed by reaching for something, looking inside the vehicle, gazing outside while not paying attention to the road, singing or dancing, and looking at something outdoors.
According to the study, young drivers were prey to distracted driving by calls, texts, or other mobile device use for an average of 4.1 seconds in the final six seconds before a catastrophic crash.
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Write equations for the vertical and horizontal lines passing through the point (5,3)
Answer:
Horizontal line - y=3
Vertical line - x=5
Step-by-step explanation:
See both graphs below
Point o is the center of dilation. triangle x y z is dilated to create triangle x prime y prime z prime. the length of o z is 2 and the length of z z prime is 4. the length of side x prime y prime is 9 and the length of side y prime z prime is 12. triangle xyz was transformed by do,3. what is the length of side xy?
The length of xy in the triangle XYZ is 9 units if xyz is dilated to create triangle x prime, y prime and z prime.
Given triangle xyz is dilated to create x prime, y prime and z prime.The length of oz is 2, the length of Zz Prime is 4,the length of x prime y prime is 9 and the length of side y prime z prime is 12.
Dilation is basically technique of creating similar shapes. Each point is streched outwards from the center point by multiplying the scale.
After dilation the side of the shape used to reduce according to factor. It is reduced by number of times of factor.
The line xy is equal to 9 units after dilation by a factor of 3. So the length of xy is 9/3.
=3 units.
Hence the length of side xy is 3 units if xyz is dilated to create x prime, y prime and z prime.
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Answer: 3
Step-by-step explanation: just did it on edge
d = 6 when v = 20 Work out an equation connecting d and v work out the value of d when v =30
The value of d is 27/2 when v =30
What is equation?Equation is the defined as mathematical statements that have a minimum of two terms containing variables or numbers is equal
Suppose that d is directly proportional to the square of v.
So the equation is, d ∝ v² equals to d = kv², where k is a constant.
So in order to find the value of k,
d = k v²
d = 6, v = 20,
Substitue the value of d and v into the equation :
6 = k(20)²
k = 6/400
k = 3/200
Substitue the value of k and v =30 into the equation,
d = 3/200(30)²
d = 2700/200
d = 27/2
Hence, the value of d is 27/2 when v =30
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Write the product in its simplest form:
-4y²• 8y4
Taking your eyes off the road for ____ seconds at 60 miles per hour means you have traveled blindly for half the length of a football field
When the first cars hit the roads they were as much (or more) a novelty, as they were the first step in mechanized transportation for the masses. Going for a “Sunday Drive” was an actual activity, not just an analogy for someone taking their sweet time. Vehicles were lighter and slower, and there wasn’t a constant sense of urgency to get from “Point A” to “Point B”.
Fast forward a little over a century and our vehicles have transformed into an average of a 2-ton living room/office/daycare that can cover 95 feet every second traveling down the road.
A lot of talks are occurring about distracted driving, but have you ever thought “I can take my eyes off the road for 2 seconds, it's no big deal”? To change a radio station, to answer a phone call, to look for an item you’ve dropped. Nearly every single one of us has at some point, even those who use a hands-free device.
The more times you take your eyes off the road for just those two seconds, the increases your likelihood of an incident
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←
2. What is the five-number summary for (34, 47, 51, 11,7,9,13, 49, 22)?
Answer: 47
Step-by-step explanation:
Samuel invested money in his bank account. he had a principal, p, of $100 in his account at the beginning of the period, which increased at a rate, r, of 0.15 per year. at the end of the period, he had interest, i, of $105 in his account. use the simple interest formula i = prt, to solve for the time, t, in months that it took to earn this amount. (1 point) 7 months 58 months 84 months 700 months
The correct answer is 700 months .
What is simple interest?Simple interest is based on the principal amount of a loan or the first deposit in a savings account. Simple interest doesn't compound, which means a creditor will only pay interest on the principal amount and a borrower would never have to pay more interest on the previously accumulated interest.Given,
I = 105
P = 100
r = 0.15
Now use simple interest formula,
[tex]S.I. = \frac{p * r* t}{100}[/tex]
105=100×(0.15)×(t)
Swap sides so t is on the left.
100 ×(0.15)×(t)=105
Divide both sides by 100.
0.15t=1.05
Divide both sides by 0.15
t=700
So, we see that it takes 700 months to earn this amount.
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Order from least to greatest. 10/8, 1.2, 0.556, 0.8%
The order from least to greatest is 0.8%, 0.556, 1.2 and 10/8
Ordering of numbersIn order to order the given numbers, we will first have to write them as a percentage as shown.
Given the number below
10/8, 1.2, 0.556, 0.8%
Convert to percentage
10/8 = 125%
1.2 = 120%
0.556 = 55.6%
0.8%
Hence the order from least to greatest is 0.8%, 0.556, 1.2 and 10/8
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how many ways can 8 distinguishable books be placed in 5 distinguishable shelves so that each shelf contains one book
There are 6720 ways by 8 distinguishable books be placed in 5 shelves.
According to statement
The number of books (n) is 8
The number of shelves (r) is 5
Now, we find the ways by which the 8 books be placed in 5 distinguishable shelves
From Permutation formula
P(n,r) = n! / (n-r)!
Substitute the values then
P(n,r) = 8! / (8-5)!
P(n,r) = (8*7*6*5*4*3*2*1) / (3*2*1)
P(n,r) = 8*7*6*5*4
P(n,r) = 6720
So, there are 6720 ways by 8 distinguishable books be placed in 5 shelves.
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Consider a deck with 2626 black and 2626 red cards. You draw one card at a time and you can choose either guess on whether it is red beforehand or simply observe the result. If the card is red you get \$1$1 and the game ends whenever you decide to guess. What is your strategy to play this game and the expected earnings
The maximum earning is v(r,b)
Let v(r,b) be the expected value of the game for the player, assuming optimal play, if the remaining deck has r red cards and b black cards.
Then v(r,b) satisfies the recursion
and
The stopping rule is simple: Stop when v(r,b)=0.
To explain the recursion . . .
If r,b>0, and the player elects to play a card, then:
The revealed card is red with probability [tex]\frac{r}{r+b}[/tex], and in that case, the player gets a score of +1, and the new value is V(r-1,b)The revealed card is black with probability [tex]\frac{b}{r+b}[/tex], and in that case, the player gets a score of −1, and the new value is V(r,b-1)Thus, if r,b>0, electing to play a card yields the value f(r,b).
But the player always has the option to quit, hence, if r,b>0, we get v(r,b)=max(0,f(r,b)).
Implementing the recursion in Maple, the value of the game is
v(26,26)=41984711742427/15997372030584
v(26,26) ≈2.624475549
and the optimal stopping strategy is as follows . . .
If 24≤b≤26, play while r≥b−5.If 17≤b≤23, play while r≥b−4.If 11≤b≤16, play while r≥b−3.If 6≤b≤10, play while r≥b−2.If 3≤b≤5, play while r≥b−1.If 1≤b≤2, play while r≥b.If b=0, play while r>0.So, The maximum earning is v(r,b)
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The density of liquid a is 8 pounds per gallon and the density of liquid b is 6 pounds per gallon. what quantity of liquid b weighs the same as 30 gallons of liquid a?
40 gallons of liquid b weighs the same as 30 gallons of liquid a.
What is density?A substance's density is defined as its mass per unit volume (more specifically, the volumetric mass density; also known as specific mass). Although the Latin letter D may also be used, the sign most frequently used for density is (the lower case Greek letter rho). Density is mathematically defined as mass divided by volume.
where m is the mass, V is the volume and D is the density, which is sometimes roughly characterized as weight per unit volume, while this is incorrect scientifically; this quantity is more precisely known as specific weight.
For liquid a,
8= mass/30
For liquid b,
6=mass/volume
For the two masses to be equal,
240=6*volume
volume=240/6
volume=40
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what is 1,987 divide 12 =
The division of 1987 by 12 when solved gives a quotient of; 165.5
How to divide numbers?We want to divide 1,987 by 12. This can be expressed as;
1987 ÷ 12
Now, it must be noted that when dividing, we have the divisor and the dividend. Where the number that is being divided is the dividend which is the numerator, while the number by which we divide is the divisor which is the denominator. Thus, in this question, we have;
Dividend = 1987
Divisor = 12
Thus;
1987/12 = 165.5
Thus, we can conclude that when we divide 1987 by 12, we get 165.5
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If Davis buys 10 notebooks, then he will have 10$ left over. If he tries to buy 15 notebooks, then he will be 10$ short. How much money does Davis have?
The amount of money that Davis has in this scenario is; $50
How to solve algebra word problems?Let the amount of money he has be $X.
Now, if he buys 10 notebooks, he will have $10 left. Thus;
X - 10n = 10 -----(1)
If he buys 15 notebooks, he will be $10 short. Thus;
X - 15n = -10 ------(2)
Subtract eq 1 from eq 2 to get;
-5n = -20
n = -20/-5
n = 4
Thus;
X - 10(4) = 10
X = 10 + 40
n = $50
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thank you in advance, have a awesome day
Answer:
Looks like an obtuse scalene triangle
Step-by-step explanation:
The angle of the top vertex looks to be obtuse. It if was acute isosceles it would have 2 equal sides. If it was a right triangle it would have a right angle (which it doesn't). It was obtuse isosceles it would have equal sides. So it should be A: Obtuse Scalene Triangle
+
Which statement is true?
UV LAB and WXZY
ZYLWX and AB 1 WX
OUVI AB and UV || ZY
AB|| UV and AB || WX
Answer:
the answer is c
Step-by-step explan
UV ⊥ AB and UV ║ ZY is the correct statement about the given figure.
What is a parallelogram?A quadrilateral with the opposing sides parallel is called a parallelogram (and therefore opposite angles equal). A parallelogram with all right angles is known as a rectangle, while a quadrilateral with equal sides is known as a rhombus.
As we can observe in the graph Line ZY is parallel to the UV and WX is parallel to AB.
Similarly, WX is perpendicular to ZY and UV(Parallel)
And AB is perpendicular to UV and ZY(Parallel)
Therefore, the correct statement is
UV ⊥ AB and UV ║ ZY
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The total cost of a certain length of a piece of cloth is Rs 200. If the piece was 5cm longer and each meter of cloth costs Rs 2 less, the cost of the piece would have remained unchanged. How long is the piece and what is its original rate per meter?
Answer:
=Rs.10
Step-by-step explanation:
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A piece of cloth costs Rs. 200. If the piece was 5m longer and each meter of cloth costs Rs. 2 less the cost of the piece would have remained unchanged. How long is the piece and what is the original rate per meter?
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Solution
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Let the length of the piece be x metres. Then, rate per metre =Rs.
x
200
New length =(x+5) metres
Since the cost remains same
New rate per metre =Rs.
x+5
200
It is given that
x
200
−
x+5
200
=2
⇒
x(x+5)
200(x+5)−200x
=2⇒
x(x+5)
1000
=2
⇒x
2
+5x=500⇒x
2
+5x−500=0$
⇒x
2
+25x−20x−500=0
⇒(x+25)(x−20)=0⇒x+25=0
orx−20=0⇒x=20orx=−25
But x cannot be negative. So, x=20
Rate per metre Rs.
x
200
=Rs
20
200
=Rs.10
i need help asapp
(-2)⋅n⋅(8)⋅n⋅(-n)
if anyone can simplify it, i would appreciate it so much
The simplified expression of (-2)⋅n⋅(8)⋅n⋅(-n) is 16n^3
How to simplify the expression?The expression is given as:
(-2)⋅n⋅(8)⋅n⋅(-n)
Express as products
(-2) * n * (8) * n * (-n)
Multiply -2 and 8
-16 * n * n * (-n)
Multiply the three n's
-16 * -n^3
Evaluate the product
16n^3
Hence, the simplified expression of (-2)⋅n⋅(8)⋅n⋅(-n) is 16n^3
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The sum of an infinite geometric series is $27$ times the series that results if the first three terms of the original series are removed. What is the value of the series' common ratio
Let [tex]a[/tex] be the first term in the series and [tex]r[/tex] the common ratio. Then the infinite series converges to
[tex]a + ar + ar^2 + ar^3 + ar^4 + ar^5 + \cdots = \dfrac a{1-r}[/tex]
Removing the first three terms from the left side effectively multiplies the right side by 27, so
[tex]ar^3 + ar^4 + ar^5 + \cdots = \dfrac{27a}{1-r}[/tex]
By elimination,
[tex]a + ar + ar^2 = -\dfrac{26a}{1-r}[/tex]
Solve for [tex]r[/tex]. We can eliminate [tex]a[/tex] so that
[tex]1 + r + r^2 = -\dfrac{26}{1-r} \\\\ \implies 1-r^3 = -26 \\\\ \implies r^3 - 27 = 0 \\\\ \implies r^3 = 27 \implies \boxed{r=3}[/tex]
Solve: P divided by 7 = 14 for p.
P=?
[tex]P \: \div \: 7 \: = \: 14[/tex]
We rewrite the division of the member in a fraction.[tex] \frac{1}{7} P \: = \: 14[/tex]
We multiply the members of the equation by "7".[tex] \boxed{ \bold{P \: = \: 98}}[/tex]
MissSpanishAnswer:
Here you go!
sorry for my writing -_-
Any confusion, you may ask me.
can you help me i dont understand this U_U
Answer:
work hours: independent
salary: dependent
Step-by-step explanation:
The independent variable is what is you're "typically" in control of, or it has a constant increase. For example time, you're not really "in control" of time, but it has a constant change. One example where you are in control, is how much money you deposit into your account, you can slightly control it (you obviously can't deposit more than you have), but it's still somewhat in your control.
The dependent variable is what changes as a result of the independent variable changing. So for example in the previous example, where the money deposited was the independent variable, the dependent variable would be the total amount of money in your account
In this case the number of hours during the week is the independent variable and the salary depends on how many hours you work in the week so that is the dependent variable
Wade wants to buy two shirts and a tie and must spend no more than $60.00. The tie he likes costs $12.50. If the two shirts are the same price, how much can he pay for each shirt?
Answer:
$23.75
Step-by-step explanation:
first, we know the tie he bought is $12.50, so we want to subtract that from the total ($60). Now we have 47.50 dollars left and if he wants to buy two shirts, we divide $47.50 by 2, which is $23.75. So if the two shirts are the same price, he can pay $23.75 for each shirt.
The question is on the picture:)
Answer: 90 degrees
Step-by-step explanation:
An angle inscribed in a semicircle measures 90 degrees.
Determine the equation of the altitude from A.
Answer:
y = - 3x + 11
Step-by-step explanation:
the altitude is a line from the vertex A drawn perpendicular to the opposite side BC
calculate the slope of BC using the slope formula
m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
with (x₁, y₁ ) = B (- 7, 3 ) and (x₂, y₂ ) = C (- 1, 5 )
[tex]m_{BC}[/tex] = [tex]\frac{5-3}{-1-(-7)}[/tex] = [tex]\frac{2}{-1+7}[/tex] = [tex]\frac{2}{6}[/tex] = [tex]\frac{1}{3}[/tex]
given a line with slope m then the slope of a line perpendicular to it is
[tex]m_{perpendicular}[/tex] = - [tex]\frac{1}{m}[/tex] = - [tex]\frac{1}{\frac{1}{3} }[/tex] = - 3
the equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept ) , then
y = - 3x + c ← is the partial equation
to find c substitute A (4, - 1 ) into the partial equation
- 1 = - 12 + c ⇒ c = - 1 + 12 = 11
y = - 3x + 11 ← equation of altitude from A
For a 4-units class like Statistics, students should spend average of 12 hours studying for the class. A survey was done on students, and the distribution of total study hours per week is bell-shaped with a mean of 15 hours and a standard deviation of 3 hours. a) 95% of the students have study hours that are between_____and_____hours.
b) What percentage of the students have study hours that are above 12?
95% of the students have study hours between 10.75 and 13.25 hours and the percentage of the students have study hours that are above 12 is 92%.
Given average of 12 % studying required, population mean of 15 hours, standard deviation of 3 hours.
We have to find the confidence interval for 95% students and the percentage of the students that have studied above 12 hours.
Margin of error=z*σ[tex]\sqrt{n}[/tex]
z value for the p value 0.95 is 1.96.
Margin of error=1.96*3/[tex]\sqrt{22}[/tex]
=5.88/4.69
=1.25
Upper interval=Mean +margin of error
=12+1.25
=13.25
Lower interval=Mean- margin of error
=12-1.25
=10.75
The confidence interval (10.75,13.25).
Now we will calculate the percentage of the students that are above 12.
z value when X=12, z=12-15/15
=-3/15
=-0.2
p value of -0.2 will be =0.5+0.4207=0.9207
=0.9207*100
Percentage=92.07%
Approx=92%.
Hence the confidence interval is (10.75 , 13.25) and 92% students have studied above 12.
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Question is incomplete as it should include sample size of 22.
In the game of Keno, a player starts by selecting 20 numbers from the numbers 1 to 80. After the player makes his selections, 20 winning numbers are randomly selected from numbers 1 to 80. A win occurs if the player has correctly selected 3, 4, or 5 of the 20 winning numbers. (Round all answers to the nearest hundredth of a percent.) what is the percent chance of winning
The percentage of winning if 20 winning numbers are randomly selected from numbers 1 to 80 is 12.48%.
Given There are 80 numbers from which 20 numbers are selected randomly in a game of Keno by player and after selection of 20 winning numbers again 20 numbers are selected and player wins if the player has correctly selected 3,4,or 5 of the 20 winning numbers.
Probability is the chance of happening an event among all the events possible.
Probability of winning is calculated as under:
Probability=[tex]C(20,3)C(60,17)/C(80,20)[/tex]
We have taken C(20,3) because player will win if 5 numbers are selected from 20 winning numbers.
We have taken C(60,17) because after selection of 20 numbers 60 numbers will left from 80 and after winning from 3 numbers 17 numbers left and from total 80, 20 numbers are taken.
=C(20,3)C(60,17)/C(80,20)
=(20!/3!17! * 60!/17!43!)/80!/20!60!
=1140*387221678682300/35353161422121743200
=12.48%
Hence the probability of winning is 12.48%.
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