Answer:
1,295
Step-by-step explanation:
35 - 100%
x - 3,7%
x= 35*3,7:100=1,295
A hotel has 30 floors with 40 rooms per floor. The rooms on one side of the hotel face the water, while rooms on the other side face a golf course. There is an extra charge for the rooms with a water view. The hotel manager wants to select 120 rooms and survey the registered guest in each of the selected rooms about his or her overall satisfaction with the property. The manager gets an SRS of rooms on the first floor with a water view and another SRS of rooms on the 30th floor with a golf course view.
Required:
a. Explain why choosing a stratified random sample might be preferable to an SRS in this case. What would you use as strata?
b. Why might a cluster sample be a simpler option? What would you use as clusters?
A) Choosing a stratified random sample might be preferable to an SRS because;
Stratified random sampling would divide the population into stratas but the
SRS would not do so. The strata would be the type of room namely those
with water view and those with golf view.
B) The reason why a cluster sample would be a simpler option is because;
It will divide the population into multiple clusters that makes it easier to
work with unlike the SRS that generalizes. The clusters would be each of
the 30 floors.
We are told that the manager wanted to select 120 rooms and carry out a survey on each registered guest by asking how satisfied they were with the hotel. He decided to use a sampling method called SRS which means Simple Random Sampling.
Simple random sampling is defined as a sampling method where individuals or objects are selected randomly from a population thereby given each person or object an equal chance of selection.
A) Stratified Random sampling is a method of sampling that divides the population into smaller groups known as objects/stata. In this case Stratified random sampling would be preferred to SRS because the hotel rooms are divided into two types namely those that can view the water and those that can view the golf course and as such the Stratified random sampling would divide the population but the SRS would not do so.
B) Cluster sampling is when the population is divided into multiple groups known for assessment. The reason why it would be a simpler option is because there are 30 floors and they can be classified as clusters and surveyed per floor.
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factorize 18x-2x^3+9-x^2
Answer:
(3 - x)(3 + x)(2x + 1)
Step-by-step explanation:
18x - 2x³ + 9 - x² ( factor the first/second and third/fourth terms )
= 2x(9 - x²) + 1 (9 - x²) ← factor out (9 - x²) from each term
= (9 - x²(2x + 1) ← 9 - x² is a difference of squares a² - b² = (a - b)(a + b) )
= (3² - x²)(2x + 1)
= (3 - x)(3 + x)(2x + 1)
Pls answer this question cuz i don't know what is the answer on this one
Pls it's on the picc
Just zoom if you don't clearly see it
THANK YOU IN ADVANCE
And Btw it's 50 points
PRETTY PLSSSSSS
Answer:
1/7 because you do the inverse.
Answer:
7 is b
Step-by-step explanation:
[tex]\sqrt{2x-6}=5[/tex]
Find the equation of the line that passes through the points (3,-2) and (-1,6) Explain
Write an equation of the line containing the given point and parallel to the given line.
(6,-9); 5x - 9y = 8
.....
Answer:
y = 5/9x - 37/3
Step-by-step explanation:
5x - 9y = 8
-9y = -5x + 8
y = 5/9x - 8/9
When a line is parallel, the slope remains the same.y = 5/9x + b
-9 = 5/9(6) + b
-9 = 10/3 + b
-37/3 = b
Nicole is buying burgers and fries for a party. She bought twice as many fries as burgers. If each
burger costs $4 and each order of fries
costs $2, and she spent a total of $48, how many burgers
and how many fries did she buy?
_____burgers and _____fries
Answer:
6 burgers and 12 chips
Step-by-step explanation:
Answer:
I think its 38 fries and 10 burgers
Step-by-step explanation:
use the substitution method to solve the system of equations
Answer:
you need to give us the equation or we can't help you
Step-by-step explanation:
i'm sorry if this is not what you're looking for :(
You deliver 84 daily papers. What is the total number of papers
delivered if you work Monday-Friday delivering papers?
Answer:
420
Step-by-step explanation:
from monday to friday makes 5 days,and u deliver 84 papers a day,u just have to multiply by 5. Meaning 84×5, which would give u 420.
Jonathan is signing a lease for an apartment that rents for $1240/month.
How much will he pay to move in if he must pay the first and last months’ rent and a security deposit equal to 80% of his monthly rent?
$2976
$3472
$3542
$3720
The required amount that Jonathan needs to pay to move in the apartment is $3472.
What are equation models?The equation model is defined as the model of the given situation in the form of an equation using variables and constants.
Here,
Jonathan is signing a lease for an apartment that rents for $1240/month.
According to the condition, he must pay the first and last months’ rent and a security deposit equal to 80% of his monthly rent.
So,
Total amount to pay = sum of the first and last month rent + 80% of a month rent
Total amount to pay = 1240 + 1240 + 80% of 1240
Total amount to pay = 2480 + 0.80[1240] = $3472
Thus, the required amount that Jonathan needs to pay to move in the apartment is $3472.
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giúp mình giải với bài này mình không biết làm mong các bạn giúp đỡ
Step-by-step explanation:
here is your answer
enjoy
Change one number in the equation below to safely land the plane: y=2x-7
1. Which of these place values is found to the left of the 1 in 100?
O hundreds
tens
ones
thousands
Sorry I’m asking for help it’s just I don’t know my decimals
Answer:
Thousands
Step-by-step explanation:
If we place a number in left of the 1 in 100 then it's place value will be thousand.
e.g if we place 2 in left of the 1 in 100 then it's place value will be thousand (2,100).
The place value found to the left of the 1 in 100 is "tens." Option B
What are place values?The digit 1 in the hundreds place of the number 100 denotes the value of one hundred. In the tens spot, to the left of the 1, there is a 0, signifying that there are no tens in the given number. The final digit, 0, is in the ones position and stands for zero units. In our decimal system, place value knowledge is essential because it enables precise expression and comprehension of numerical values.
The place value system makes complicated numbers simpler and makes it possible for humans to carry out mathematical operations quickly. It lays the platform for more complex mathematical ideas and acts as the basis for computation.
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Solve ax + b = cx + d for x.
(Hint: Use the distributive property, where ax + bx = x(a + b).)
Answer: X = (d-b) / (a-c)
This way this worded is weird but I think I got it
Step-by-step explanation:
Subtract B from both sides
ax = cx +d -b
Then subtract CX from both sides
ax -cx =d-b
Distributive Property
x(a-c) =d-b
Divide both sides by a-c
X = (d-b) / (a-c)
After a 65% reduction, you purchase a new sofa on sale for $182. What was the original price of the sofa?
The original price was $ ?
Answer:
$280
Step-by-step explanation:
65% = 0.65
$182 ÷ 0.65 = $280
So, the sofa was originaly sold for $280. Hope this helps! :D
Someone help im giving brainliest!
Answer:
D. 30
Step-by-step explanation:
( -5 ) ( -2 ) ( +3 )
( 10 ) ( 3 )
30
Hopefully this helped!
Brainliest please?
Answer:
30
How I did it:
All you have to do is mulitply the numbers:
- 5 (- 2) ⋅ 3
And you'll get 30!
What is the graph description for y=-10x
Hey! Please help! What is the slope of this line? I can't figure out how to read the graph correctly
Answer:
slope = -3
Step-by-step explanation:
The line is declining, which means that it will have a negative slope.
Using the slope formula:
m = (y2 - y1)/(x2 - x1)
Take two points from the graph:
Let (x1, y1) = (0, 2)
(x2, y2) = (2, -4)
m = (y2 - y1)/(x2 - x1)
m = (-4 - 2)/(2 - 0)
m = -6/2
m = -3
Therefore, the slope of the line is -3.
For your reference, attached is an edited screenshot of your given graph where it shows where I got the two points for solving the slope.
The Super Bowl half time show lasts 30 minutes. If the half time show is 1/7 of the total game time, how many hours is the Super Bowl from start to finish? Write your answer as a mixed number.
Answer:
3 1/2 hours.
Step-by-step explanation:
If the Half Time show is one-seventh of the show and lasts for 30 minutes, we can multiply that by 7 to get the total amount of minutes.
30 x 7 = 210
To convert the number of minutes to hours, 210 can be divided by 60 to result in a total of 3.5, therefore, the Super Bowl lasts for 3 1/2 hours.
find the value of k if it is known that the graph of y=kx+2 goes through the point. a(14,-40)
(100 POINTS)
Answer:
k=-3
Explanation:
Plug in x and y values
-40=k(14)+2
-2 both sidea
-42=k(14)
divide by 14 both sides
k=-3
k = -3
Step-by-step explanation:
y = kx + 2 through the point a(14, -40)
Subtitute…
y = kx + 2
-40 = k(14) + 2
-40 = 14k + 2
-40 - 2 = 14k
-42 = 14k
(-42)/14 = k
-3 = k
Is it possible for an even degree function to have no zeros? Explain.
Answer:
A polynomial of even degree can have any number from 0 to n distinct real roots
Step-by-step explanation: Yes it can
2. When graphing an inequality with a < symbol, use a _______ line.
a.) dotted
b.) solid
2. When graphing an inequality with a < symbol, use a dotted line.
it's A.Step-by-step explanation:
sign, and graph the equation. If the inequality is < or >, graph the equation as a dotted line.hope it helps
3. (05.06 MC)
Graph the system of inequalities presented here on your own paper, then use your graph to answer the following questions:
y > 3x + 10
y<- 3/4X-1
Part A: Describe the graph of the system, including shading and the types of lines graphed. Provide a description of the solution area. (6 points)
Part B: Is the point (8, 10) included in the solution area for the system? Justify your answer mathematically. (4 points)
(10 points)
>= means greater than or equal to
<= means less than or equal to
---------------------------------------------
Part A
The graph of y >= -3x+3 will have a solid boundary line and the shading will be above the boundary line.
The boundary line y = -3x+3 has a negative slope so it moves down as you read it from left to right. It goes through the points (0,3) and (1,0)
--------------
The graph of y < (3/2)x - 6 will have a dashed or dotted boundary line. The shading is below the boundary.
The graph y = (3/2)x-6 goes through the two points (0,-6) and (2,-3)
--------------
If you graph both y >= -3x+3 and y < (3/2)x - 6 together, you get what you see in the attached image. This solution shaded region is the result of the overlapping prior shaded regions.
---------------------------------------------
Part B
Plug (x,y) = (-6,3) into each inequality to see if we get a true inequality or not
For the first inequality we have
y >= -3x+3
3 >= -3*(-6)+3
3 >= 18+3
3 >= 21
which is false. The value 3 is not larger or equal to 21. So right off the bat we know that (-6,3) is NOT a solution. It is NOT in the solution region.
Let's check the other inequality just for the sake of completeness
y < (3/2)x - 6
3 < (3/2)*(-6) - 6
3 < -9 - 6
3 < -15
this is also false. The value -15 is smaller than 3, since it is to the left of 3
We're given more evidence that (-6,3) is NOT in the solution area. It is outside of both shaded areas.
What is the slope of the line represented by the equation 3x– 4y = 7?
Answer:
slope = [tex]\frac{3}{4}[/tex]
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Given
3x - 4y = 7 ( subtract 3x from both sides )
- 4y = - 3x + 7 ( divide terms by - 4 )
y = [tex]\frac{3}{4}[/tex] x - [tex]\frac{7}{4}[/tex] ← in slope- intercept form
with slope m = [tex]\frac{3}{4}[/tex]
A grocery clerk made this graph to relate the number of pounds of peaches and plums to the cost.
Which statement is true based on the graph?
A. The quantities form a proportional relationship for both peaches and plums.
B. The quantities form a proportional relationship for plums but not for peaches.
C. The quantities form a proportional relationship for peaches but not for plums.
D. The quantities do not form a proportional relationship for either peaches or plums.
Answer:
(A) The quantities form a proportional relationship for both peaches and plums.
Step-by-step explanation:
Answer:
a
Step-by-step explanation:
solve for x
z=5x-11y
x=?
Answer:
x= z+11y/5hope it helps
Answer:
[tex]x = \frac{z + 11y}{5}[/tex]
Step-by-step explanation:
To solve for x, given the equation: z = 5x - 11y
Add 11y to both sides:
z + 11y = 5x - 11y + 11y
z + 11y = 5x
Divide both sides by 5 to isolate x:
[tex]\frac{z + 11y}{5} = \frac{5x}{5}[/tex]
[tex]\frac{z + 11y}{5} = x[/tex]
PLLLLZZZZ HELPPPP ME!!!!!!!!!
The smallest known galaxy, Segue 2, has an approximate radius of 1.05 × 1015 kilometers. Use the conversion factors 1 light-year = 9.5 × 1012 kilometers and 1 parsec = 3.262 light-years to convert this distance from kilometers to parsecs.
Answer:
33.88 parsecStep-by-step explanation:
Given:
1 light-year = 9.5 × 10¹² kilometers1 parsec = 3.262 light-yearsConvert parsec to km:
1 parsec = 3.262 * 9.5 × 10¹² = 30.989 × 10¹² = 3.0989 × 10¹³Find the radius of Segue 2 in parsecs:
1.05 × 10¹⁵ / 3.0989 × 10¹³ = 105 × 10¹³ / 3.0989 × 10¹³ = 105/3.0989 = 33.88 parsecRicky looked at his checking account balance regularly. The inequality statement compares the magnitude of his two lowest balances. What does the inequality statement show? |−300|>|−100| Select from the drop-down menus to correctly complete the statement. Even though −300 is Choose... than −100, a $100 debt is a Choose... debt than a $300 debt.
Answer:
1: less
2: lesser
Step-by-step explanation:
We can complete the statement as -
Even though |−300| is greater than |−100|, a $100 debt is a less debt than a $300 debt.
What is absolute value of a number?
The absolute value of a number is the magnitude of number. Absolute value describes the distance from zero that a number is on the number line, without considering direction.
We have a inequality statement that compares the magnitude of two lowest balances as -
|−300| > |−100|
For a number [x], such that [x] < 0, the absolute value would be -
v[a] = -x
So -
for x = |- 300| = 300
and
for x = |- 100| = 100
On comparing -
300 > 100
We can complete the statement as -
Even though |−300| is greater than |−100|, a $100 debt is a less debt than a $300 debt.
Therefore, we can complete the statement as -
Even though |−300| is greater than |−100|, a $100 debt is a less debt than a $300 debt.
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please answer this question
Graph 1: Domain = 2 <= x < 12
Graph 1: Range = {2,4}
Graph 2: Domain = 3 <= x <= 10
Graph 2: Range = -6 <= y <= 4
Graph 3: Domain = 4 < x < 11
Graph 4: Range = -6 <= y < 2
Can someone help me
i will give brainiest
Answer:
I would label the short sides 2x+3 then the long sides 2x+4
2x+2 + 2x + 2 + 2x + 4 + 2x + 4 = 8x + 12
Step-by-step explanation:
^
Can I have brainliest? It would help me out, if not thanks anyways! Hope this helped and have a nice day!
Answer:
guh7yf7hh u hcuhvu
Step-by-step explanation:
hhcg gxyvhudty hi ij u CV