Answer:
C. Draw slips of paper with names of residents out of a large box.
Step-by-step explanation:
c is the only one where the results are truly random
sorry don't really know how to explain it rather than looking at the definition
Draw slips of paper with names of residents out of a large box is the method would result in a random sample. Hence, option C is correct.
What is random sample?A subset of a population is chosen at random in a basic random sampling. The possibility of selection bias is minimized in this sampling technique since every member of the population has an exact equal chance of being chosen.
A simple random sample might consist of 25 employees' names drawn at random from a pool of 250 employees. Since each employee has an equal chance of being selected, the sample in this case is random and the population in this case is all 250 employees.
Random sampling makes sure that the findings you get from your sample should be close to what you would have gotten if you measured the complete population. All of the units in the population can have information using the simplest random sampling.
Thus, option C is correct.
For more information about random sample, click here:
https://brainly.com/question/29852583
#SPJ2
i will give extra points please help
Answer:
7
Step-by-step explanation:
3 + 4 = 7.
So, therefor, x = 3
Martha Rose decides to investigate a flag
• height/width =3/5
• There are 7 red stripes and 6 white stripes, all of which have the same height, the hoist.
• The height of the blue field equals the height of seven stripes.
height of the blue field/width of the blue field = 2/3
The height of one stripe is what fraction of the height of the entire flag?
The height of the blue field is what fraction of the height of the flag?
Answer:
what subject is this?
Step-by-step explanation:
I cant really tell what subject this is
Ana completed 40% of her homework assignment. her assignment contain 30 math problems. how many problems does Ana still need to complete?
Answer:
18 assignments left
Step-by-step explanation:
If my answer was wrong then im sorry
100%-40%=60%×30÷100=18
Yang is a car salesperson at Honda dealership. He earns monthly salary of $2,400 and an $250 bonus for each vehicle he sells to a customer. 1. Create an equation to represent the total earnings, t, Yang can make selling v, vehicles in one month.
2. How many vehicles does Yang need to sell in a month to earn a total of $5150?
3. How many vehicles does the salesperson need to sell in a month to earn at least $6000? Write an inequality and solve algebraically using inverse operations.
Answer:
1. 2400+250v=t
2. 11
3. at the least 15
Step-by-step explanation:
1. 250 is dependent variable
2. 5,150-2400=2750
2750/250=11
3.2400+250x=6000
6000-2400=3600
250x=360
3600/250
x=14.4
you need to sell at least 15
Which of these measures would give a triangle?
Answer:
b
Step-by-step explanation:
b because the angles of a trinagle are accurate for the cm. And because the angles of traingles are small.
helppppppt .........
Answer:
104 degrees
Step-by-step explanation:
360-76(2)= 208
208 divided by 2= 104 degrees
if agnete usually drinks three 8 oz cups (80 mg) of drip coffee every day how many grams of caffeine will she consume in a week
Answer
80oz
Hope
it helps
Agnete consumes 1.68 grams of caffeine in a week.
What is a unit rate?It is the quantity of an amount of something at a rate of one of another quantity.
In 2 hours, a man can walk for 6 miles
In 1 hour, a man will walk for 3 miles.
We have,
We know that Agnete drinks 3 cups of drip coffee every day, and each cup contains 8 oz of coffee, which is equivalent to 80 mg of caffeine.
To find out how many grams of caffeine Agnete consumes in a week, we can start by calculating the total amount of caffeine she consumes in a day:
Total caffeine in a day.
= 3 cups x 80 mg/cup
= 240 mg
Then, we can multiply this value by 7 to find the total amount of caffeine she consumes in a week:
Total caffeine in a week = 240 mg/day x 7 days/week = 1680 mg
To convert milligrams (mg) to grams (g), we divide by 1000:
Total caffeine in a week = 1680 mg / 1000 = 1.68 g
Therefore,
Agnete consumes 1.68 grams of caffeine in a week.
Learn more about unit rates here:
https://brainly.com/question/11258929
#SPJ2
I need help I’ll rate u good this is a lot of points
Answer:
1)x=71 2) =137
Step-by-step explanation:
1) 180-32=148 you minus it from 180 because the angles on a straight line add up to 180
2x+6=148
2x=142
x=71
2) 180-39=141
x+4=141
x=137
3. Nutrition labels. The nutrition label on a bag of potato chips says that a one ounce (28 gram) serving of potato chips has 130 calories and contains ten grams of fat, with three grams of saturated fat. A random sample of 35 bags yielded a sample mean of 134 calories with a standard deviation of 17 calories. a. Calculate the 95% confidence interval of for this random sample. Then interpret this interval.
Answer:
The 95% confidence interval of for this random sample is between 128.16 calories and 139.84 calories. This means that we are 95% that the mean number of calories for all bags of potato chips is in this interval.
Step-by-step explanation:
We have the standard deviation for the sample, which means that the t-distribution is used to solve this question.
The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So
df = 35 - 1 = 34
95% confidence interval
Now, we have to find a value of T, which is found looking at the t table, with 34 degrees of freedom(y-axis) and a confidence level of [tex]1 - \frac{1 - 0.95}{2} = 0.975[/tex]. So we have T = 2.0322
The margin of error is:
[tex]M = T\frac{s}{\sqrt{n}} = 2.0322\frac{17}{\sqrt{35}} = 5.84[/tex]
In which s is the standard deviation of the sample and n is the size of the sample.
The lower end of the interval is the sample mean subtracted by M. So it is 134 - 5.84 = 128.16 calories
The upper end of the interval is the sample mean added to M. So it is 134 + 5.84 = 139.84 calories
The 95% confidence interval of for this random sample is between 128.16 calories and 139.84 calories. This means that we are 95% that the mean number of calories for all bags of potato chips is in this interval.
Simplify V200 *PLEASE HELP FAST!*
Answer:
the last one
Step-by-step explanation:
√ 100 √ 2
√ 10 √ 10
10 √ 2
1. Which expression has a value that is
more than its base?
A. (4/5) to the 3rd power
B. (2/3) to the 4th power
C. 5 to the 3rd power
D. (1/2) to the 2nd power
The cost of 5 dresses and 2 belts is $48. The cost of 3 dresses and 2 belts is $32. Find the cost of a dress and a belt. Let x denote the cost of a dress and y denote the cost of a belt.
A: x = $8, y = $4
B: x = $5, y = $4
C: x = $7, y = $10
D: x = $4, y = $5
Step-by-step explanation:
• 5X + 2Y = 48
• 2Y = 48 - 5X
let's use this and replace it on the second equation
• 3X + 2Y = 32
• 3X + 48 - 5X = 32
• 3X - 5X = 32 - 48
• -2X = -16
• X = 8
now use the X value we found to find the Y
• 5X + 2Y = 48
• 5*8 + 2Y = 48
• 40 + 2Y = 48
• 2Y = 48-40
• Y = 8/2
• Y = 4
A: x = $8, y = $4
Find the AREA of the circle below
Answer:
If they want you to use pi as 3.14 then the answer is 153.86
If they just use pi the answer is 153.94
Step-by-step explanation:
A = [tex]\pi r^{2}[/tex]
14/2 = 7
A = [tex]\pi 7^{2}[/tex]
A = [tex]\pi[/tex] 49
A = 153.94
correct answers only please!!
Answer:
7
Step-by-step explanation:
The distance between points A and B is 7.
Have a great day! :)
and can I please have brainliest?
NEED HELP ON THIS ASAP
Answer:
its 12 i think because if A D is 5 E B looks about double that so i think its 12
Step-by-step explanation:
REAL ANSWERS ONLY
Rudy has arranged to buy a car for $10,240. He has a $3000 trade-in allowance and will make a $2000 down payment. He will finance the rest with a 3-year auto loan at 3.4% APR.
What is the total amount of interest he will pay? Round your answer to the nearest dollar.
$288
$279
$271
$188
Answer:
271
Step-by-step explanation:
Answer:
$279
explanation:
A 40 litres pail of paint costs $34. How much does 1 litre of paint cost?
Answer:
85 cents
Step-by-step explanation:
34÷40= .85
adding characters to get to 20
Q12
A woman needs to work out how long it will take to drive to York.
20
G
She checks the journey on a website.
The distance from her house to York is 80 miles.
20 miles of the journey are through roadworks with a speed restriction of 40mph.
She should drive the rest of the journey at an average speed of 50mph
Answer:4.8
Step-by-step explanation:
The product of 2 and 14 more than a number
Answer:
85
Step-by-step explanation:
Find the surface area of the prism. centimeters 7 17 8 15
Answer:
400 cm²
Step-by-step explanation:
1/2x2x15x8=120
17x7=119
7x8=56
15x7=105
120+119+56+105=400
The total surface area of a given prism is 400 cm².
What the surface area of a prism?To find the surface area of any kind of prism we use the general formula. The total surface area of a prism is the sum of lateral surface area and area of two flat bases.
The total surface area of a Prism = (2 × Base Area) + (Base perimeter × Length).
Here, Base area = 1/2 ×Base×Height
= 0.5×8×15
= 60 cm²
Base perimeter = 15+8+17
= 40 cm
Now, total surface area = 2×60+(40×7)
= 120+280
= 400 cm²
Therefore, the total surface area of a given prism is 400 cm².
To learn more about the surface area of a prism visit:
https://brainly.com/question/28016184.
#SPJ2
Which number line shows the solution set for 10-3)=9
++
-12 -9
+
-6-3
3
07
+
9
+
12
+
-12 -9
+++
-6 -3 0 3
6
0)
12
-12 -9
-6
+
-3 0
+
3
+
6 9
12
+
-12
-9
-6
+
-3
to
3
6
00
12
Answer: See if you can use a picture...I can't understand your question.
Step-by-step explanation:
At a picnic, hamburgers and hotdogs were consumed in the ratio 7 to 4. If 41 hamburgers were consumed, how many hot dogs were consumed ?
Help meeeeee pleaseeeee
Answer: it’s should be -300
Step-by-step explanation:
simplify the inequality
Answer:
2x + 4 > 14
2x > 10
x > 5
Answer:
C.x>5
Step-by-step explanation:
2x+4>14
2x>10
x>5
Hope this helps! :)
One triangle on a graph has a vertical side of 3 and a horizontal side of 4. Another triangle on a graph has a vertical side of 9 and a horizontal side of 12. Could the hypotenuses of these two triangles lie along the same line? (4 points)
Item 3
Find the surface area of the prism?
The surface area of the prism is 108 m².
What is Surface Area?The area of a three dimensional object on it's outer surface is called the surface area of the object.
Given is the figure of a triangular prism.
Triangular prism consists of two triangular bases and three rectangular lateral faces.
Triangular base is right triangle.
Surface area of prism = area of bases + area of lateral faces
Area of a triangular base = [tex]\frac{1}{2}[/tex] × base × height
= [tex]\frac{1}{2}[/tex] × 4 × 3
= 6 m²
Area of two triangular bases = 2 × 6 = 12 m²
Area of a rectangle = length × width
Area of rectangular faces = (8 × 5) + (8 × 4) + (8 × 3)
= 40 + 32 + 24
= 96 m²
Total surface area = 12 m² + 96 m² = 108 m²
Hence the total surface area of the prism is 108 m².
Learn more about Surface Area here :
https://brainly.com/question/28016184
#SPJ3
If a=7 and b=13, what is the number of even positive integers less than ab?
Answer:
45
Step-by-step explanation:
HELP ME IM SCREAMING ETERNALLY
Answer:
Option (C) is not equal to 5/9
Answer:
C is incorrect
Step-by-step explanation:
A: 5 * 2 = 10 9 * 2 = 18
B: 5 * 4 = 20 9 * 4 = 36
C: 5 * 6 = 30 9 * 6 = 54
D: 5 * 7 = 35 9 * 7 = 63
E: 5 * 10 = 50 9 * 10 = 90
Hope this helped!
what's the slope of (-3,3) and (-1,2)
Answer:
Step-by-step explanation:
Slope is defined as
m=(y2-y1)/(x2-x1)
We are given two (x,y) points of (-3,3) and (-1,2) so
m=(3-2)/(-3- -1)
m=1/-2
m=-1/2
PLEASE HELP
In order to paint the house, Wyatt multiplies the area of the base times the height then adds half the area of the base times the height
Explain whether or not Wyatt correctly calculated the surface area of the house.
Answer:
Step-by-step explanation:28637 /ueo