Answer:
The 99% confidence interval for the mean number of years general managers of major-chain hotels have spent with their current company is between 11.01 years and 12.55 years.
Step-by-step explanation:
We have that to find our [tex]\alpha[/tex] level, that is the subtraction of 1 by the confidence interval divided by 2. So:
[tex]\alpha = \frac{1-0.99}{2} = 0.005[/tex]
Now, we have to find z in the Ztable as such z has a pvalue of [tex]1-\alpha[/tex].
So it is z with a pvalue of [tex]1-0.005 = 0.995[/tex], so [tex]z = 2.575[/tex]
Now, find the margin of error M as such
[tex]M = z*\frac{\sigma}{\sqrt{n}}[/tex]
In which [tex]\sigma[/tex] is the standard deviation of the population and n is the size of the sample.
[tex]M = 2.575*\frac{3.2}{\sqrt{114}} = 0.77[/tex]
The lower end of the interval is the sample mean subtracted by M. So it is 11.78 - 0.77 = 11.01 years
The upper end of the interval is the sample mean added to M. So it is 11.78 + 0.77 = 12.55 years
The 99% confidence interval for the mean number of years general managers of major-chain hotels have spent with their current company is between 11.01 years and 12.55 years.
Determine which choice best shows the distributive property of multiplication.
Question 1 options:
7 × 9 = 9 × 7
7 × (9 + 6) = (7 × 9) + (7 × 6)
7 × (9 × 6) = (7 × 9) × 6
1 × 7 = 7
Answer: Identify and use the commutative properties for addition and multiplication. Here, the same problem is worked by grouping 5 and 6 first, 5 + 6 = 11. The example below shows how the associative property can be used to simplify. The sum is 14. 7 + 2 + (8.5 + (−3.5)). 7 + 2 + 5. 9 + 5. 14. Group 8.5 and –3.5=5
Step-by-step explanation:
Answer:
7 × (9 + 6) = (7 × 9) + (7 × 6)
Step-by-step explanation:
What is 0.63 divided by 0.18
Answer:
The answer is 3.5. I have included a screenshot that shows the work and how to get 3.5. I hope this helps!
And by the way yes, I do know this is a kinda old question, but I would like points and I have the answer.
:D
- Your friendly (a little bit late) responder!
When you divide 0.63 by 0.18, you get the result of 3.5.
To find the result of dividing 0.63 by 0.18, perform the division as follows:
0.63 ÷ 0.18 = 3.5
When you divide 0.63 by 0.18, the result is 3.5. This means that there are 3.5 sets of 0.18 in 0.63. To verify this, you can multiply 0.18 by 3.5:
0.18 × 3.5 = 0.63
So, 0.63 divided by 0.18 equals 3.5.
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Pls help quick thank u
Answer:
i think it’s D
i hope i help you but if nop DO NOT FORGET STAY SAFE AT HOME
Evaluate y=3x for x=2.
y=
Answer:
y=6
Step-by-step explanation:
y=3x x=2
y=3(2)
y=6
For the given expression, the value of y is 6.
What is an expression?Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
Given that;
The expression is,
⇒ y = 3x
Now, For value of x = 2;
The value of y is,
⇒ y = 3x
Substitute x = 2;
⇒ y = 3 × 2
⇒ y = 6
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Write the phrase as an expression.
5 less than 8
An expression is
Answer:
the expression is 5 - 8
which is -3
or
the expression is 5 < 8
A disc jockey is organizing his music. He has
277 albums with 14 songs on each of them and
177 singles with 1 song on each of them. How
many total songs does the disc jockey have?
Answer:
The total numbers of songs disc jockey have = 4055 songs
Step-by-step explanation:
As given, A disc jockey has 2 types of files :
1 : Albums
2 : Singles
Given that , in every album there is 14 songs
as we have 277 albums
So, total numbers of songs in 277 albums = 277×14 = 3878 songs ........(1)
Now,
Given that, in each singles there is 1 song
As we have 177 singles
So, total number of songs in 177 singles = 177×1 = 177 songs ..........(2)
So, the total numbers of songs disc jockey have = Total number of songs in 277 albums + total number of songs in 177 singles
⇒The total numbers of songs disc jockey have = 3878 + 177
= 4055 songs
∴ we get
The total numbers of songs disc jockey have = 4055 songs
In APQR, PR is extended through point R to point S, mZQRS = (7x+8)°,
mZRPQ = (x +12)', and mZPQR= (3x + 20°. Find mZRPQ.
Answer:
Wait what?
Step-by-step explanation:
Answer:
I'm sorry but I don't know
Step-by-step explanation:
I am sorry I needed the points.
I need help please need this answer.
Answer:
Step-by-step explanation:
The answer is C because if you calculate it then the answer would be 65
Why did the river get less polluted as it went down stream?
Group of answer choices
magic
pollution was diluted
evaporated
bacteria ate it
Answer:
Pollution was diluted
Step-by-step explanation:
Black skin color is dominant to pink skin color in pigs. Two heterozygous black pigs are crossed. a. What is the probability that their offspring will have pink skin? b. What is the probability that the first and second off- spring will have black skin? c. If these pigs produce a total of three piglets, what is the probability that two will be pink and one will be black?
Answer:
[tex]P(Pink) = \frac{1}{4}[/tex]
[tex]P(Both\ Black) = \frac{9}{16}[/tex]
[tex]Probability = \frac{3}{64}[/tex] --- Two pink and One black
Step-by-step explanation:
Represent the pink skin with P and the black skin with B.
Since black skin is dominant to pink skin, there will be more occurrence of B than P
The punnet square for the breeding of the two pigs is then represented as:
[tex]\begin{array}{cc} {B} & {B} \ \\ {B} & {P} \ \ \end{array}[/tex]
Solving (a): Probability of Pink
In the above square, there is only 1 occurrence of P out of a possible of 4.
So, the probability is:
[tex]P(Pink) = \frac{n(P)}{4}[/tex]
[tex]P(Pink) = \frac{1}{4}[/tex]
Solving (b): Probability that first and second are black
In the above square, there is only 3 occurrence of B out of a possible of 4.
[tex]P(Black) = \frac{n(B)}{4}[/tex]
[tex]P(Black) = \frac{3}{4}[/tex]
So, the probability that both are black is:
[tex]P(Both\ Black) = P(Black) * P(Black)[/tex]
[tex]P(Both\ Black) = \frac{3}{4} * \frac{3}{4}[/tex]
[tex]P(Both\ Black) = \frac{9}{16}[/tex]
Solving (c): Probability of two pink and 1 black
This is calculated as:
[tex]Probability = P(Pink) * P(Pink) * P(Black)[/tex]
[tex]Probability = \frac{1}{4} * \frac{1}{4} * \frac{3}{4}[/tex]
[tex]Probability = \frac{3}{64}[/tex]
A) The probability that their offspring will have pink skin is; ¹/₄
B) The probability that the first and second off- spring will have black skin is;
9/16 or 56.25%
C) The probability that two will be pink and one will be black If the pigs produce a total of three piglets is; ³/₆₄ or 4.6875%
Mendel's law of dominanceTo answer this question, we need to first understand Mendel's law of dominance. This law states that in a heterozygote, one trait will conceal the presence of another trait for the same characteristic. This means that the dominant trait always conceal the recessive trait.
Now in this question, we are told that;
black skin colour is dominant to Pink skin colour in pigs.Let's denote the black color gene by ‘P’ and pink colour by ‘p’. Therefore, if cross is held between these two genes then according to mendel's law, the heterozygous pigs is specified as "Pp"
Now when the heterozygous pigs specified as "Pp" are crossed, we have;
Pp × Pp = PP, Pp, Pp, pp
where;
PP and Pp denotes black pigs is denoted pp denotes pink pigs
(a) From the 4 cross possibilities above;
Probability that their offspring will have pink skin = ¹/₄
(b) From the 4 cross possibilities gotten earlier;
Probability that their offspring will have black skin = ³/₄
Thus;
Probability that the first and second off- spring will have black skin is;
³/₄ × ³/₄ = 9/16 or 56.25%
(c) We are told that the pigs produced a total of three piglet. Thus, the probability that two will be pink and one black will be black is;
P(2 pink and 1 black) = ¹/₄ × ¹/₄ × ³/₄ = ³/₆₄ or 4.6875%
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solue each by trial and error method.. 3+x=8
Answer:
x=5
Step-by-step explanation:
Move the constant to the right-hand side and change its sign. Then subtract the numbers.
Answer:
X=8-5
X=5
Step-by-step explanation:
plz mark me as brainliest
Find the area of the circle.
Use \mathrm{\pi } = 3 . 14π=3.14 and round your answer to the nearest hundredth.
Answer:
The formula used to find area of circle is: [tex]Area=\pi \:r^2[/tex]
Step-by-step explanation:
We need to find area of the circle
(Note: The data is missing in this question, so I will just explain how to find area of circle.)
The formula used to find area of circle is: [tex]Area=\pi \:r^2[/tex]
where r is radius of circle.
So, If we have value of r and we put π = 3.14, we can find area of circle.
Let us suppose that Radius of circle r = 5
Now, the area of circle having radius 5 is:
[tex]Area=\pi \:r^2\\Area=3.14 \times (5)^2\\Area=3.14\times 25\\Area=78.5[/tex]
So, when radius of circle is 5, Area of circle is 78.5
So, Using the radius given in your question, you can find area of circle.
DUE IN 5 MINUTES!!!1!!11!1!!1
123 + 392 - 234 x 2 ÷ 3 + 223 x 14 =
Answer: 3481
Step-by-step explanation:
Tara has a plastic string that is 3 feet long. She will cut the string to make bracelets that are each foot long.
Part A
Tara creates a number line to help her determine the number of bracelets she can make.
4
0
2
3
Explain how to use the number line to determine the maximum number of bracelets Tara can make.
Enter your explanation in the box provided
I
Answer:
Mark 3 and subtract 1 from each division
Step-by-step explanation:
Tara will mark the number line at point 3.
Then she will subtract 1 from 3 and mark at point 2.
Again subtracting 1 from 2 the next mark is at 1.
And the last mark is at 0.
The first mark at point 3 shows that the string is 3 feet long.
Now we need 1 foot divisions. So we subtract from 1 division from point 3 to get 1 foot long string. So we continue to get 3 equal parts each of 1 foot long by dividing the 3 feet long string into 3 equal divisions.
so the first piece is from 0-1 gives 1 foot long string
The 2nd piece is from 1-2 gives 1 foot long string
The 3rd piece is from 2-3 gives 1 foot long string
What interest is needed to earn $137.50 on a deposit of $500 for five years if it earns simple interest?
Answer:
5.5%
Step-by-step explanation:
Given data
Simple interest = $137.50
Principal= $500
time = 5 years
We want to find the rate R
Simple interest= PRT/100
137.50 = 500*R*5/100
137.50=2500R/100
cross multiply
137.5*100= 2500R
13750= 2500R
divide both sides by 2500
R= 13750/2500
R=5.5%
Hence the rate is 5.5%
Convert the following recipe for 12 portions so that it yields 60 portions.
Stir Fried Chicken
3 lb chicken 6 oz. soy sauce 1 lb. green peppers
1/2 lb. scallions 2 oz ginger
2 cups Water
Answer:
15lb chicken 30 oz. soy sauce 5lb. green peppers
2 1/2 lb. scallions 10 oz. ginger
10 cups Water
To make 60 proportions of Stir Fried Chicken requires 15lbs of chicken,
30 oz of soy sauce, 3 lb. green peppers, 5/2 lb scallions, 10 oz ginger, and 10 cups Water.
What are ratio and proportion?A ratio is a comparison between two similar quantities in simplest form.
Proportions are of two types one is the direct proportion in which if one quantity is increased by a constant k the other quantity will also be increased by the same constant k and vice versa.
In the case of inverse proportion if one quantity is increased by a constant k the quantity will decrease by the same constant k and vice versa.
Given 12 portions of Stir-Fried Chicken requires 3 lb chicken 6 oz.
soy sauce 1 lb. green peppers
1/2 lb scallions
2 oz ginger
2 cups Water.
∴ To make 60 proportion or (12×5) proportion we have to multiply each ingredient by a factor of 5.
So, 60 proportions of Stir-Fried Chicken requires (3×5) = 15lbs of chicken,
(6×5) = 30 oz of soy sauce, (1×3) = 3 lb. green peppers, (1/2×5) = 5/2 lb scallions, (2×5) = 10 oz ginger and (2×5) = 10 cups Water.
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{ x + y = 158
x- y = 112
Answer:
i have know
Step-by-step explanation:
A sqaure window is 2 meters long on each side. To protect the window during a storm, Marisol plans to put a strip of duct tape along each diagonal of the window. To the nearest tenth of a meter, what is the toal length of duct tape Marisol will need.
Please give equation.
Answer:
5.7 meters
Step-by-step explanation:
Since the duct tape is to be placed along the diagonal of the square window, Considering the shape formed by one diagonal and two sides of the window. This shape is a right angle triangle.
The diagonal represents the hypotenuse while the sides are the opposite and adjacent. Using Pythagoras theorem, let the length of the diagonal be h
h^2 = 2^2 + 2^2
= 4 + 4
= 8
Taking the root of both sides
h = √8
= 2.828 meters
considering that the duct tape is needed for 2 diagonals, the total length required
= 2.828 * 2
= 5.656
To the nearest tenth of a meter, this becomes
= 5.7 meters
What is the expanded notation fraction of 810.435
Answer:
800.000 + 10.000 + 0.000 + 0.400 + 0.030 + 0.005
Simplify
57
leaving your answer in index form.
Luisa deposits $44.60 to her bank account on Tuesday morning. on Wednesday, she withdraws $66.30 on Thursday, she wildew $30 Which answer choke represents the balance in her account on Thursday?
A $51.70
B $140.90. C $ -22.00. D $-51.70
Answer:
The answer is D- $- 51.70
The answer choke represents the balance in her account on Thursday is D $-51.70
What is an equation?An equation is an expression that shows the relationship between two or more numbers and variables.
A mathematical equation is a statement with two equal sides and an equal sign in between. An equation is, for instance, 4 + 6 = 10. Both 4 + 6 and 10 can be seen on the left and right sides of the equal sign, respectively.
Given that Luisa deposits $44.60 to her bank account on Tuesday morning. on Wednesday, she withdraws $66.30 on Thursday, she wildew $30
Using the data from the question, we can create the following equation to solve.
44.60 - (66.30 + 30 ) = x
44.60 - (96.30 ) = x
-51.70 = x
As we can see Luisa withdrew more money than what she actually deposited which means that her account balance on Tuesday Night is less than what it was on Monday night before the initial deposit.
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f(x) = 4+9x, find f(-3)
Answer:
R3EWS.
Step-by-step explanation:
A frog can hop a maximum speed of about 60 feet every 4 seconds. How far can he hop in 30 seconds
Answer:
its 180
Step-by-step explanation:
Answer:
450
Step-by-step explanation:
15x30=450
During a promotional event a sporting goods store gave a free t-shrit to every 10 customer and a free water bottle to every 15 customer which customer has the first to get a free t-shirt and a free water bottle
9514 1404 393
Answer:
30th
Step-by-step explanation:
The least common multiple of 10 and 15 is 30.
30 = 10×3 = 15×2
The 30th customer will be the first to receive both promotional items.
PLS HELP
Will give brainliest pls help!
The graph of Fx), shown
below, has the same shape as the graph of
G(X) = x - x2. Which of the following is the equation of Fx)?
Fb =
A. Fx) = 44-2-3
O B. F(x) = 3 - 44-32
O C. F(x) = x4 - 12+ 3
O D. F(X) = 44 - x2
Answer:
It is C
Step-by-step explanation:
The equation of the function f(x) is C. f(x) = x⁴ - x² + 3.
What is Translation of Functions?Translation of functions is defined as the when each point in the original graph is moved by a fixed units in the same direction.
There are horizontal translation and vertical translation of functions.
Given parent function is,
g(x) = x⁴ - x²
It is given that the function f(x) has the same shape as g(x).
f(x) is vertically translated.
From the graph, the points on f(x) is shifted 3 units to the up.
A function f(x) when undergoes vertical translation becomes f(x) ± k, where k is the units for which the translation occurs.
If the translation is done up to k units, function is f(x) + k.
f(x) = g(x) + 3 = x⁴ - x² + 3
Hence the function is f(x) = x⁴ - x² + 3.
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Janice got a raise in her hourly pay, from $9.75 to $11.50. Find the percent change. Round to the nearest tenth of a percent.
Answer:
trhe answer is 11.50 because it's closest to 10
Answer:
17.9%
Step-by-step explanation:
11.50-9.75=1.75
1.75/9.75=0.1794
Find the area of the figure.
Answer:
Width X Lenght =Area
Step-by-step explanation:
3 X 4= 12m
I need help please.
Answer:
C. 37.8
Step-by-step explanation:
Original Price is 54 dollars
30% Discount=0.3*54=16.2
Price after 30% off
54-16.2=37.8
Question need help very hard pls
1. extends both north and south of the Equator
(1 Point)
A. the Caribbean
B. South America
C. hunter-gatherers
D. Yucatán
E. mounds
Answer:
South America
Step-by-step explanation: