Answers
Related Questions
Kari plans to sample 20 people of a population that contains 100 students. She wants to determine how many people wake up before 6 a.m. Which sample is the most random?
the first 20 students who arrive at school in the morning
all 20 boys on the swim team
5 students out of each of the 4 homeroom classes
the last 20 people in line for breakfast in the cafeteria
Answers
Answer:
5 students out of each of the 4 homeroom classes
Step-by-step explanation:
The most random sample is 5 students out of each of the 4 homeroom classes.
Thus, option (C) is correct.
Selecting 5 students from each of the 4 homeroom classes ensures that the sample represents a diverse range of students from different classes.
This approach helps to minimize bias and increase the randomness of the sample.
The other options, such as selecting the first 20 students who arrive at school or the last 20 people in line for breakfast, may introduce some bias based on the specific circumstances or characteristics of those groups. Selecting all 20 boys on the swim team would also not provide a representative sample of the overall student population.
Thus, option (C) is correct.
Learn more about Random variable here:
https://brainly.com/question/30789758
#SPJ4
Plz help I will give brainliest
Answers
Answer:
x= 18°
Step-by-step explanation:
90° = 3x + 2x
90° - 5x
x = 90°/5
x = 18°
At 7 p.m. the wind-chill temperature was 4°F. By 10 p.m., it had fallen 11
degrees. Write an equation to show the wind-chill temperature at
10 p.m., then solve the equation.
Answers
Answer:
-7
Step-by-step explanation:
4-11=-7
please help! urgent!
Answers
Answer:
y=7
Step-by-step explanation:
Since the triangle is an equilateral triangle, all 3 sides must be congruent. Therefore, we can set the 2 measurements- 3y & 5y-14, equal to each other.
3y=5y-14
14=2y
y=7
2x- 7 and the opposite of 2x
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Answer:
-7/4 is the correct answer,ok bro
A car travels 100 miles in 4 hours. What is its average speed?
Answers
Answer:
25 miles per hour
Step-by-step explanation:
100 / 4 = 25
A.s= 100 /4
A.s=25miles/hour
plz help
On Monday, Elsbeth’s bank account balance was -$16.75. On Tuesday, she deposited a check for $5.72. On Thursday, she deposited $16.75. What is her new balance?
-16.75 + (5.72 + 16.75)
Use the commutative property to get:
-16.75 + (16.75 + 5.72)
Use the associative property to get:
(-16.75 + 16.75) + 5.72
On Friday, Elsbeth deposited her pay check for $872.56. What was the account’s final total?
-$866.84
$878.28
$895.03
$903.10
Answers
Answer:
$5.72
Step-by-step explanation:
Sorry I was late--
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SHOW THE WORK PLEASEEEE!!!
Answers
Answer:
4x^10y^8
Step-by-step explanation:
Get gud at math you newb
Answer:
2x^7y^6
Step-by-step explanation:
you do x^5 = X x X x X x X x X and x^2 is X x X so X^5 x X^2 is X x X x X x X x X x X x X which can be simplified to X^7
and the same for y
y^4 = Y x Y x Y x Y and y^2 is Y x Y, so Y^4 x Y^2 = Y x Y x Y x Y x Y x Y which simplifies to Y^6
I hope thats right :)
HELP MEEE ITS DO IN 2 HOURS!!!
An online company sells watches with different prices. The ordering system uses
the equation c=p+7.50 to determine the total cost, c, including shipping for a
watch with a price of p dollars.
Identify the independent variable and the dependent variable.
Answers
Answer:
p - independent
c - dependent
Step-by-step explanation:
Answer
C is the dependent variable and P is the independent variable .
Step-by-step explanation:
6. What is the equation in slope-intercept form for the graph of the line shown?
y
F. y =-2x-1
G.y =-2x + 1
H. y = 2x – 1
I. y = 2x + 1
Answers
f)y=-2x-1
An uber in Los Angeles charges $3.50 per mile and $2 for every person. If taxi cab ride for three people costs $20, how far did the taxi cab travel?
Answers
Answer:
4 miles
Step-by-step explanation:
JOEY
Hoey
Boey
Goey
ABCDEFGHIJKLMNOPQRSTUVWXYZ
Answers
Answer:
jayfeather in the house
Step-by-step explanation:
Answer:
zoey :)
Step-by-step explanation:
The area of the rectangle shown below is given by the expression 7x+35. If the width of
the rectangle is equal to 7, then which of the following is the correct expression for the
missing length of the rectangle in terms of the variable x?
(1) x+35
L = ?
(2) 7x + 21
(3) r + 28. (4) r+5
Area = 7x + 35
Answers
Answer:
I think C(3)
Step-by-step explanation:
If X-1 = 8, what justifies x - 1 = 16?
2
F Subtraction Property of Equality
G Division Property of Equality
H Transitive Property of Equality
J Multiplication Property of Equality
Answers
Answer:
I think G Division Property of Equality
using compound interest, how long does it take to double a 1000 dollar investment that pays 6.5% annual interest, compounded monthly?
Answers
Answer:
11 years approx
Step-by-step explanation:
Given data
P=$1000
A=2000
R=6.5%
T= ?
Calculate time, solve for t
t = ln(A/P) / r
substitute
t=ln(2000/1000)/0.065
t=ln(2)/0.065
t=0.693/0.065
t=10.66
Hence the time is 11 years approx
There are 14 girls and 12 boys in a class. What is the ratio of girls to students?
Answers
Answer:
7:13
Step-by-step explanation:
There are 14 girls and 12 boys, so there are 26 students in total. Since we are looking for the ratio of girls to students, the ratio will be 14:26. To simplify it, we will divide 14 and 26 by their greatest common factor: 2. We will get the ratio of 7:13.
I hope this helped! :)
Two streets form an intersection. C and D are supplementary
angles. If the measure of C is 140° and the measure of D is
two times the value of x, what is the value of x?
Answers
Answer:
20degrees
Step-by-step explanation:
The sum of angle C and D is 180 degrees since they are supplementary
Given
m<C = 140 degrees
m<D = 2x
Taking the sum and equating to 180
140 + 2x = 180
2x = 180-140
2x = 40
x = 40/2
x = 20 degrees
Hence the value of x is 20degrees
if mr.s rivas has 256 donust and she needs to give the same amount of dounts to her 5 freinds
Answers
Answer:
256/5=51.2
Step-by-step explanation:
Answer:
51 with a remainder of one, or 51.2
Step-by-step explanation:
She has 256 donuts and 5 friends. I assume this is for long division practice, so I will do long division.
5 | 256
Look at the first term. Does 5 go into 2? No. Bring down the next term.
5|256
25
Does 5 go into 25? Yes! How many times? 5. The first digit of our answer will be 5.
5|256 = 5
25
Now to get rid of the 25, we multiply the number we took for our answer by the divisor. 5x5 = 25. Subtract this from 25 and bring down the next (and last term).
5|256 = 5
25
-25
06
Does 5 go into 6? Yes. One time. Repeat what we did just now with this term now.
5|256 = 51
06
-5
1
Does 5 go into 1? No, it is smaller. Therefore we have a remainder of one donut.
If we are trying to divide ALL of the donuts equally, we will have to cut up the donut into 5 equal pieces. They would each be 1/5 of the donut, or 0.2.
So adding this, each friend would get 51 donuts, with an extra donut for Mrs Rivas, or each friend would get 51.2/51 and 1/5 donuts.
1/3y y = 15
please help
Answers
Answer:
Step-by-step explanation:
y in (-oo:+oo)
(1/3)*y = 15 // - 15
(1/3)*y-15 = 0
1/3*y-15 = 0 // + 15
1/3*y = 15 // : 1/3
y = 15/1/3
y = 45
y = 45
Answer: The answer is five
Step-by-step explanation: This is because if the equasion is 1/3 x y and y=15 than the equasion is 1/3 x 15 or 1/3 x 15/1 which is 5
what's a function????
Answers
Answer: Function, in mathematics, an expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable (the dependent variable). Functions are ubiquitous in mathematics and are essential for formulating physical relationships in the sciences.
Step-by-step explanation:
Answer:
A relation of two or more numbers
One input one output
there can be more then one input for the same output
just not more then one output for one input
7x+2=-54
Brainliest answer
Answers
Answer:
Step-by-step explanation:
Subtract 2 on both sides
7x = -56
Divide 7 on both sides
x = -8
How do you write 3,390 in scientific notation?
x 10
Answers
Answer:
3.39 × [tex]10^{3}[/tex]
Step-by-step explanation:
Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the 10. If the decimal is being moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive. Since the decimal is going right, the exponent will be positive
i need help asap. Thank you
Answers
Gary started his Saturday with $5 in his pocket. He then set up a lemonade stand and sold cups of lemonade for $1 per cup.
Is this a proportional or additive relationship?
Question 1 options:
Proportional
Additive
Answers
Answer:
it's 5 how did I know bc I'm big brain;p that's the right answers it's ,5...
Answer:
Additive
Step-by-step explanation:
I took the test
Esteban finds 12 baseball cards on Monday and 24 more baseball cards on Tuesday. He gives some baseball cards to his sister, and now he has 13 baseball cards left. How many cards did he give to his sister?
Answers
Answer:
23 cards.
Step-by-step explanation:
After Monday, Esteban has 12 cards.
After Tuesday, Esteban has 12 + 24 = 36 cards.
He gave to his sister x cards.
36 - x = 13
36 = 13 + x
23 = x
please help marking brainlist What is the second inverse operation for the following problem? 3x+4=12
Answers
Answer: It would be multiplcation and addition.
Step-by-step explanation:
0.8 = 0.5x
Solve for x
Please show steps thanks so much
Answers
0.8/ 0.5 = 0.5x/ 0.5
Cross out the 0.5’s on the right because they cancel out and you will end up with:
0.8/ 0.5 = x
All you have to do then is divide 0.8 by 0.5 and you get:
1.6 = x
INEQUALITIES PLEASE HELP!!!
The record for the most rolls of wrapping paper sold for the school fundraiser is 593. Let w = the number of rolls of wrapping paper sold.
Choose Yes or No to tell if each inequality represents a number that would beat the school record.
w ≥ 593 (YES OR NO?)
w > 593 (YES OR NO?)
w ≤ 593 (YES OR NO?)
593 < w (YES OR NO?)
Answers
Answer:
The record is 593.
To beat the record you need a greater number:
w > 593Options:
w ≥ 593 NO, it includes 593 w > 593 YES w ≤ 593 NO, it includes 593 and smaller numbers 593 < w YESHow would it look like if you graphed this equation. y = 2x - 2
Answers
Answer:
Step-by-step explanation:
What are the zeros of the polynomial function? State the multiplicity of each zero y=(x+2)(x-3)^2
Answers
Answ er:
-2, 3
Step-b y-step explanation:
The question is asking what x equals that makes y equals 0
How do we do this?
Because we're multiplying things together we just need one part of the equation to equal 0
for example if x= -2 then we would have the following
(-2+2)(-2-3)^2
(0)(-5)^2
which is 0
and the other answer is 3 because when you have
x-3=0
x= 3
