Answer:
1. Option a
2. Option a
3. Population proportion
4. Sample proportion
Step-by-step explanation:
1The entire city of Athens is the:_______
a. population.
2) The 200 citizens from the researcher's data is the:______
a. sample
3) Which symbol would denote the value of 0.378 in this example?
Population proportion- average estimate of those residents in the entire city that are below the poverty line.
4) Which symbol would denote the value of 0.25 in this example?
Sample proportion - the average estimate of the 200 random sample residents that are below the poverty line.
The income for the city of Athens.
The city of Athens is located in the largest city of Greece and is ruled by a powerful city-state. The city is home to Plato and is one of the biggest economic hubs of southern-eastern Europe. As per the question, the city has an average income of $33,060 and 37.8%.
Thus the answers are population, sample and population proportion, and the sample proportion.
The local researchers don't have any estimates of the information so she is taking a sample to determine the value of taking a random sample of 200 residents of Athens. In the sample, the average citizen is her sample and these samples were taken for those below the poverty line.Hence for the first and second option A and for third the population proportion and for the fourth, the sample proportion is correct.Learn more bout the entire city of Athens.
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Evaluate the expression: 2 x 2 x 2 x 2
Answer:
2×2 =4
4×2 =8
8×2 =16
there is ur answer
Answer:
girl it not hard; just count by 2s
Step-by-step explanation:
2 4 6 8 10 12 14 16
or do what the other person did
G00gle could also help
tthanks for point XD
Please help! I don’t know the answer to this.
Answer:
as we can see b and are reflections as ther are same
Brianna made 9 1/4 bags of popcorn for a movie night with some friends. Together they ate 4 bags of it. How much popcorn was left?
There were 5 1/4 bags of popcorn left after eating 4 bags.
To find out how much popcorn was left after eating 4 bags, we need to subtract the amount eaten from the total amount Brianna made.
Brianna made 9 1/4 bags of popcorn, which can be represented as a mixed number. To perform calculations, let's convert it to an improper fraction:
9 1/4 = (4 * 9 + 1) / 4 = 37/4
Now, let's subtract the 4 bags eaten from the total:
37/4 - 4
To subtract fractions, we need a common denominator. The common denominator of 4 and 1 is 4. Therefore, we can rewrite the expression as:
37/4 - 4/1
Now, let's find a common denominator and subtract the fractions:
37/4 - 16/4 = (37 - 16) / 4 = 21/4
The result is 21/4, which is an improper fraction. Let's convert it back to a mixed number:
21/4 = 5 1/4
Therefore, there were 5 1/4 bags of popcorn left after eating 4 bags.
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Can someone help me? I’ll reward points + brainalist
Answer:
B
Step-by-step explanation:
Since the only difference in the aquariums is the length, you can find the difference by multiplying the difference in length with the rest of the dimensions.
Difference in length = 4ft - 3ft
= 1ft
Difference in volume = 1ft × 2ft × 1ft
= 2ft³
Problem: Answer 5/6 + -5/6
Answer:
0
Step-by-step explanation:
5/6+(-5/6)=5/6-5/6=0
Adam invests $6,139 in a retirement account with a fixed annual interest rate compounded continuously. After 17 years, the balance reaches $8,624.97. What is the interest rate of the account
An account with a starting balance of P accruing interest with rate r for time t, componunded continuously, ends up with a balance A according to
\(A=Pe^{rt}\)
Plug in everything you know and solve for r :
\(8624.97=6139e^{17r}\)
Divide both sides by 6139:
\(\dfrac{8624.97}{6139}=e^{17r}\)
Take the natural logarithm of both sides:
\(\ln\left(\dfrac{8624.97}{6139}\right)=\ln e^{17r}\)
Recall that \(\ln x^y=y=\ln x\), so that
\(\ln\left(\dfrac{8624.97}{6139}\right)=17r\ln e\)
and ln(e) = 1, so
\(\ln\left(\dfrac{8624.97}{6139}\right)=17r\)
Finally, divide both sides by 17:
\(r=\dfrac1{17}\ln\left(\dfrac{8624.97}{6139}\right)=\boxed{0.02}\)
So the account has an interest rate of 2%.
Micah sketches the graph below to represent a scenario his teacher gave him.
On a graph, a line goes through points (0, 2) and (2, 4).
Which scenario could Micah’s graph represent?
Valerie has $1 and then earns $2 per week (where x is the number of weeks) in allowance, for a total of y dollars.
Valerie has $2 and then earns $1 per week (where x is the number of weeks) in allowance, for a total of y dollars.
Valerie earns $1 per week (where x is the number of weeks) in allowance and has spent $2, for a total of y dollars.
Valerie earns $2 per week (where x is the number of weeks) in allowance and has spent $1, for a total of y dollars.
35
426 and two-thirds
40
586 and two-thirds
55
What is the approximate number of hours in 72 days on Saturn?
603 and two-thirds
658 and two-thirds
743
768
The scenario that Micah’s graph represents is B. Valerie has $2 and then earns $1 per week (where x is the number of weeks) in allowance, for a total of y dollars.
What is a graph?A graph is a diagram showing the relation between variables, each measured along with one of a pair of axes at right angles.
Here, Valerie has $2 and then earns $1 per week (where x is the number of weeks) in allowance, for a total of y dollars.
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Answer: b or Micah’s plant is 2 inches tall and grows at a rate of 1 inch per week (where x is the number of weeks), for a total of y inches.
Step-by-step explanation:
I need this answered by tmr please!!
Select from the drop-down menus to correctly complete the statement.
The rule (x, y)→(x−10, y−4) represents a translation 10 units
Choose...
and 4 units
Choose...
.
The rule (x,y) -> (x - 10, y - 4) represents a translation of 10 units left and 4 units down.
What are the translation rules?The four translation rules are defined as follows:
Left a units: x -> x - a.Right a units: x -> x + a.Up a units: y -> y + a.Down a units: y -> y - a.Hence the meaning of each translation in the context of this problem is given as follows:
x -> x - 10: translation 10 units left.y -> y - 4: translation 4 units down.More can be learned about translations at brainly.com/question/28174785
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Brainliest for correct answer
I need help with the 2 questions. What is the mean age of the employees to the nearest year?
What is the median age of the employees?
The sum of the measures of the interior angles in a convex polygon is 1.260. How many sides does the polygon have?
A 5
B7
c9
OD. 14
Answer:
c. 9.
Step-by-step explanation:
Sum of interior angles = 180(n - 2), so
180(n - 2) = 1260
180n - 360 = 1260
180n =1260 + 360 = 1620
n = 1620/ 180
= 9 sides.
Please answer this question now in two minutes
Answer: JIK and HIF
Step-by-step explanation:
JIK and HIF because their measures are congruent and they are reflective of each other, so they are vertical.
I'LL MARK YOU AS BRAINLIEST IF ANSWER CORRECT
a bookstore charges h dollars for a hardcover book, p dollars for a paperback book, and m dollars for a music CD. During a sale the store reduces the cost of of a book by 20% and reduced the cost of music CD by $1. Enter an equation for the total cost, t, for buying 5 hardcover books, 8 paperback books, and 6 music CDs during the sale.
The Equation to represent the "total-cost", "t", for purchasing "5 hardcover books", 8 "paperback-books", and 6 music CDs during the sale is t = 4h + 6.4p + 6m - 1.
The cost of the hardcover-book is = $h,
The cost of the paperback-books is = $p,
The cost for one music-CD is = $m,
In the sale, the price of each book is reduced by 20%, and
The price of music-CD is reduced by $1,
So, the cost of 5 hardcover books during the sale is:
⇒ 5h - 0.2(5h) = 4h ...because 20% = 0.2;
and the cost of 8 paperback books during the sale is:
⇒ 8p - 0.2(8p) = 6.4p,
The cost of 6 music CDs during the sale is ⇒ 6m - 1;
So, the total cost, "t", for buying 5 hardcover books, 8 paperback books, and 6 music CDs during the sale is:
⇒ t = 4h + 6.4p + 6m - 1,
Therefore, the required equation of "total-cost" is t = 4h + 6.4p + 6m - 1.
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What is the constant of proportionality for the relationship shown in the table? x 2 4 6 8 y 1 2 3 4
1/2
2
or not proportional
A line passes through the points (0, 4) and
(2,-2). A second line passes through the
points (1, -9) and (7, -7). At what point do
the two lines intersect?
Answer:
I would say (4, -8)
Step-by-step explanation:
Match each drawing on the left with its word description on the right
Answer:
WHATS the question???
Step-by-step explanation:
Answer:
answer in the picture
Step-by-step explanation:
24. This week, Cristina eamed P594.65 from selling burgers for 35 days. How much he will earn in 5 days?
A. P84.95
B. P94.95
C. P104.95
D. P114.95
25. You have four quizzes in your math subject in a quarter. You got 88.75 for the first quiz, 85.5, 90.5, and 87.25 in the second, third and fourth quizzes, respectively. What is your average in the four quizzes this quarter?
A. 86.5
B. 88
C. 89.5
D. 90 26. Amberich put P580.00 into a savings account for one year. The rate of interest on the account was 6.5%. How much was the interest for one year in pesos and centavos?
A. P67.70
B. P37.70
C. P57.70
D. P17.70
24. This week , Cristina eamed P594.65 from selling burgers for 35 days . How much he will earn in 5 days ?
A. P84.95
B. P94.95
C. P104.95
D. P114.95
25. You have four quizzes in your math subject in a quarter . You got 88.75 for the first quiz , 85.5 , 90.5 , and 87.25 in the second , third and fourth quizzes , respectively . What is your average in the four quizzes this quarter ?
A. 86.5
B. 88
C. 89.5
D. 90
26. Amberich put P580.00 into a savings account for one year . The rate of interest on the account was 6.5 % . How much was the interest for one year in pesos and centavos ?
A. P67.70
B. P37.70
C. P57.70
D. P17.70
Question 24 :
P594.65 : 35 days
P594.65/7 : 35/7 days
P84.95 : 5 days
⇒ A. P84.95
Question 25 :
88.75 + 85.5 + 90.5 + 87.25 / 4
352/4
88
⇒ B. 88
Question 26 :
I = P × r × t
I = 580.00 × 0.065 × 1
I = P37.70
⇒ B. P37.70
Calcular los 3/5 de los 2/3 de las 3/4 de 560
For the fractions, the calculation of 3/5 of 2/3 of 3/4 of 560 is equal to 168.
How to solve fractions?To calculate 3/5 of 2/3 of 3/4 of 560, break it down step by step:
Step 1: Calculate 3/4 of 560:
3/4 × 560 = (3 × 560) / 4 = 1680 / 4 = 420
Step 2: Calculate 2/3 of the result from Step 1:
2/3 × 420 = (2 × 420) / 3 = 840 / 3 = 280
Step 3: Calculate 3/5 of the result from Step 2:
3/5 × 280 = (3 × 280) / 5 = 840 / 5 = 168
Therefore, 3/5 of 2/3 of 3/4 of 560 is equal to 168.
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At a local fitness center, gym members pay $3 per workout with an annual membership fee of $140. Non-members pay $10 per workout. If you plan on working out an average of twice a month for the next year, is a membership worth the investment? Show your thinking
Answer:
Yes, the membership is worth it.
Step-by-step explanation:
Per workout : $10× 24 days = $240
Per workout with th membership: $3 × 24 days = $72+ $140 = $212
Please answer this correctly without making mistakes
Answer:
1 mi 683 yd
Step-by-step explanation:
.............
Billy is making a curtain for his kitchen window. He bought 2 1/2
yards of fabric. His total cost was $15. What was the cost per yard?
The fabric has a cost per yard of $6 per yard
How to determine the cost per yard of the fabric?From the question, the given parameters are:
Yards of fabric = 2 1/2 yards
Cost of the fabric = $15
The cost per yard of the fabric is then calculated as
Cost per yard = Cost of the fabric/Yards of fabric
Substitute the known values in the above equation
So, we have
Cost per yard = 15/(2 1/2)
Evaluate the quotient
So, we have
Cost per yard = 6
Hence, the cost per yard is $6 per yard
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A person x inches tall has a pulse rate of y beats per minute, as given approximately by yequals600 x Superscript negative 1 divided by 3 for 30 less than or equals x less than or equals 75. What is the instantaneous rate of change of pulse rate for the following heights? (A) 39-inches (B) 71-inches What is the instantaneous rate of change of pulse rate for a 39 inch tall person?
Answer:
a) 5.13beats/min
b) 2.82 beats/min
Step-by-step explanation:
Given the pulse rate of a person modelled by the equation y = 600x^-1/3 for 30≤x≤75
If the height is 39inches, the instantaneous rate of change of pulse rate for the heights will be expressed as;
y = 600(39)^-1/3
y = {600(1/39)}/3
y = 600/39×3
y = 600/117
y ≈ 5.13beats/min
The instantaneous rate for a 39 inches tall person is 5.13 beats per min
b) For a 71inches tall person, the beat rate will be expressed as;
y = 600(71)^-1/3
y = {600(1/71)}/3
y = 600/71×3
y = 600/213
y ≈ 2.82 beats per minute
The instantaneous rate for a 71 inches tall person is 2.82 beats per min
brendan has $200 in a saving account with a 1% interest rate. using the formula for simple interest, how much will he earn in interest after 7 years?
answer:
$14
step-by-step explanation:
the formula for simple interest is-
i=prt
meaning interest=principal (the starting amount of money) * rate * time
=200*0.01*7
(we have to turn 1% into a decimal so 1/100=0.01)
=14
i=14
good luck :)
i hope this helps
brainliest would be highly appreciated
have a nice day!
After 7 years and a 1% interest rate, Brendan will have a total of 214$.
What is simple interest?
Simple interest is calculated based on a loan's principal or the initial deposit into a savings account. Simple interest doesn't compound, therefore a creditor will only charge interest on the principal sum, and a borrower will never be required to pay further interest on the interest that has already accrued.
Given, Brendan has $200 in a saving account with a 1% interest rate.
The simple interest is given as
Interest = (PRT/100)
where
P = Amount deposited = 2,00
R = Rate = 1%
T= Time = 7 years
Interest = (PRT/100)
Interest = (200 × 7 × 1/100)
Interest = 14
Total amount = SI + principal amount
Total amount = 14 + 200 = 214
Therefore, Brendan will have 214 $ after 7 years and a 1% interest rate.
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2. At 32 meters from the foot of a tree,the angle of elevation to the top of the tree is 57. What is the height of the tree?
Looking at triangle ABC
C represents the top of the tree
B represents the foot of the tree
We want to determine BC which is the height of the tree
Since the triangle is a right angle traingle, we would apply the tangent trigonometric ratio which is expressed as
tan # = opposite side/adjacent side
tan 57 = BC/32
BC = 32tan57 = 32 * 1.5399
BC = 49.3 meters
Height of the tree is 49.3 meters
9. A new classroom is 10.5 metres by 5.2 metres.
Each child needs 2m2 of space.
How many children are allowed in the classroom? Round to the nearest whole number
Answer:
14
Step-by-step explanation:
(10.5×5.2)÷(2×2)
=13.65
~14
Answer:
14 students
Step-by-step explanation:
because of round to the nearest whole number.
mark me brainliest please
What number must be added to both the numerator and denominator of the fraction 2/5 to get 7/8?
a) 13
b) 15
c) 17
d) 19
m is inversely propportional to the square of (p–1).
when p=4‚m=5.
find m when p=6.
Answer:
m = 1.8
Step-by-step explanation:
given m is inversely proportional to (p - 1)² then the equation relating them is
m = \(\frac{k}{(p-1)^2}\) ← k is the constant of proportion
to find k use the condition when p = 4, m = 5
5 = \(\frac{k}{(4-1)^2}\) = \(\frac{k}{3^2}\) = \(\frac{k}{9}\) ( multiply both sides by 9 )
45 = k
m = \(\frac{45}{(p-1)^2}\) ← equation of proportion
when p = 6 , then
m = \(\frac{45}{(6-1)^2}\) = \(\frac{45}{5^2}\) = \(\frac{45}{25}\) = 1.8
Solve for the variable in the following equation: |1/3y-7|=|2/5y+5|
Answer:
y = {-180, 2 8/11}
Step-by-step explanation:
I like to solve these using a graphing calculator. I generally start by writing the equation in the form ...
f(y) = 0
This can be done by subtracting the right-side expression from both sides. The solution will be the horizontal intercepts of the graph:
y = -180; y = 2 8/11
__
To solve this analytically, you need to recognize that this resolves into four equations, effectively two identical pairs. Each equation comes with a set of conditions (domain) for which it is applicable. Here is the expanded set of equations:
1/3y -7 = 2/5y +5 . . . both positive: 1/3y -7 ≥ 0 and 2/5y + 5 ≥ 0
7 -1/3y = 2/5y +5 . . . left side negative: 1/3y -7 ≤ 0 and 2/5y +5 ≥ 0
1/3y -7 = -2/5y -5 . . . right side negative: 1/3y -7 ≥ 0 and 2/5y +5 ≤ 0
7 -1/3y = -2/5y -5 . . . both sides negative: 1/3y -7 ≤ 0 and 2/5y +5 ≤ 0
__
The conditions resolve to ...
1/3y -7 ≥ 0
y -21 ≥ 0 . . . . . multiply by 3
y ≥ 21 . . . . . . . add 21
and ...
2/5y +5 ≥ 0
y +25/2 ≥ 0 . . . . multiply by 5/2
y ≥ -25/2 . . . . . subtract 25/2
Now, we are in a position to solve the equations and determine where the solution is applicable.
__
both positive
The domain will be y ≥ 21 and y ≥ -25/2, which is y ≥ 21.
Multiplying the equation by 15 gives ...
5y -105 = 6y +75
y = -180 . . . . . . . . . subtract 5y+75
This solution is not in the allowed domain.
__
left side negative
The domain will be y ≤ 21 and y ≥ -25/2, which is -25/2 ≤ y ≤ 21.
Multiplying the equation by 15 gives ...
105 -5y = 6y +75
30 = 11y . . . . . . . . . add y-75
y = 30/11 . . . . . . the solution is in the allowed domain
__
right side negative
The domain will be y ≥ 21 and y ≤ -25/2. This is the empty set.
__
both sides negative
The domain will be y ≤ 21 and y ≤ -25/2, which is y ≤ -25/2.
Multiplying the equation by 15 gives ...
105 -5y = -6y -75
y = -180 . . . . . . . . . . add 6y-105 . . . . the solution is in the allowed domain
__
Solutions to this equation are ...
y = 30/11 = 2 8/11
y = -180
Help! Look at the figure. If mzJ = 55, find m
90
35
70
55
The value of the required missing angle is;
m<JKM = 35°
How to find the missing angle of the triangle?We know from geometry that the sum of angles in a triangle sums up to 180 degrees.
Now, we are trying told that in the given Triangle that the angle m<J = 55 degrees.
We also see that the angle <KMJ is equal to 90 degrees becasue it is a right angle.
Thus to find the angle m<JKM, we can write the name expression as;
m<JKM = 180 - (90 + 55)
m<JKM = 35°
Thus that's the value of the required missing angle.
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If f (x) = 2x + 4 and g(x) = 3x + 1, what is the value of f (g(3))?
=
O 31
O 24
O 20
O 16
Answer:
B) 24
Step-by-step explanation:
f(x)=2x+4
g(x)=3x+1
----------------
g(3)=3(3)+1=9+1=10
f(g(3))=f(10)=2(10)+4=20+4=24
Composite functions are function into another function. The value of the composite function f(g(3)) is 24
Composite functionsComposite functions are function into another function. Given the following functions:
f (x) = 2x + 4 and;
g(x) = 3x + 1,
Determine the composite function f(g(3))
f(g(x)) = f(3x + 1)
f(3x+1) = 2(3x + 1) + 4
Substitute x = 3 into the result
f(g(3)) = 2(3(3)+1) + 4
f(g(3) = 2(10) + 4
f(g(3)) = 24
Hence the value of the composite function f(g(3)) is 24
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