Answer:
The answer would be 9 - x because you can see the word fewer is in the problem and that means it's subtraction, and since we don't know what the number is they're subtracting by, we'd put x
Step-by-step explanation:
The most important characteristic of a sample that makes it possible to generalize the results of a research study to the population from which the sample was selected is that it is, on average, representative of that population. Which of the following is most likely to ensure the sample is truly representative?
A. The sample is selected based on whether respondents possess minimal reading and writing skills enabling them to understand the questions presented on questionnaires
B. The entire population is included in the sample i.e. it is really a census
C. The sample is carefully screened to ensure that it contains, proportionately, people with the same demographic profiles as encountered in the population.
D. The sample is selected quickly, even at the risk of its being non-random to ensure that opinions are 'fresh.'
E. The sample is selected at random from the population of interest.
Answer:
C. The sample is carefully screened to ensure that it contains, proportionately, people with the same demographic profiles as encountered in the population.
Step-by-step explanation:
Sampling
This is a common statistics practice, when we want to study something from a population, we find a sample of this population.
When choosing a sample, you have to be careful, to avoid choosing a biased sample.
In this question:
Option A is not correct, as this wouldnt be representative of the entire population, since there is expected to be a significant number of people without these skills.
Option B is not correct, as we would not have a sample.
Option D is not correct, as a quickly selected sample could lead to bias.
Option E is not correct, as it could also lead to bias.
So the answer is given by option C.
Pls help, I’ll give you brainliest
A 7th grade classis selling packages of cotton candy at a festival for $2.95 each. Each package costs them $0.95 to make.They expect to sell between 900 and 1,000 packages of cotton candy during the festival.What is a reasonable estimate of the class’s profit?
A. $900
B. $1,000
C. $2,000
D. $3,000
Answer:
Answer C.
Step-by-step explanation:
The class sells them for $2.95, assuming $0.95 manufacturing cost per, leaving $2.00 profit per bag. If they sell 900-1000 packages at $2.00, it leaves $1800-$2000 profit.
Answer:
if you see they have 2.95 and 0.95 you need to combert to a decimal and then you need to subtract 900 and 1,000
Step-by-step explanation:
and oviosly is a 900
A circle has a radius that measures 9 centimeters what is the area of the circle to the nearest tenth use pie 3.14
Step-by-step explanation:
Given
radius (r) = 9 cm
Area of the circle (A)
= πr²
= 3.14 * 9²
= 3.14 * 81
= 254.34 cm²
what Is 1 5/8-2/4????
Answer:
1 1/8
Step-by-step explanation:
2/4 is equal to 4/8 - common multiple is 8
subtract 4/8 from 1 5/8 is 1 1/8
Cos B- CosC/CosA+1=c-b/a
Answer:
Sorry can't help you but good luck
look at the picture I attached
Answer:
Sorry it appears that that I can't answer this question because I need more info than that to answer.
Step-by-step explanation:
PLEASE HELP Mary has an essay due in 4 days. She estimates that she needs to spend 6 hours working on her essay. She wants to split up the work and work the same amount of time each day. Mary goes to bed at 10:00 p.m. and plans to work on her essay right before she goes to sleep. What time should Mary start working on her essay each night so she can complete her essay on time?
9:00 p.m.
8:00 p.m.
9:30 p.m.
8:30 p.m.
Answer:
8:30
Step-by-step explanation:
Because 6 ÷ 4 is 1.5. also know as 1.5hrs before bedtime.
Answer: I think the answer is 8:30
Step-by-step explanation:
6÷4= 1.5
8:30 + 1:30 = 10:00
Ziv's taxicab ride cost $33. He left a 15% tip.
What was the total cost of the taxicab ride with tip?
Enter your answer in the box.
Answer:
Step-by-step explanation:
1. Find 15% of $33 to find the tip.
Find 1% of $33 (move the decimal over 2 places to the left. $0.33
2. Multiply the 1% tip by 15%
33 * 15 = $4.95
3. Add $33 and $4.95
4.95 + 33.00 = $37.95 total
What value of x makes this equation true?
-12 + 5x = -24 + x
Answer:
Step-by-step explanation:
-12+5x=-24+x
4x=-12
x=-3
The value of x will be equal to -3 for the given expression.
What is an expression?The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.
Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.
Given expression is -12 + 5x = -24 + x. The value of x will be calculated as,
-12+5x=-24+x
4x=-12
x=-3
Therefore, the value of x will be equal to -3 for the given expression.
To know more about an expression follow
https://brainly.com/question/25968875
#SPJ2
In a lottery, 6 numbers are randomly sampled without replacement from the integers 1 to 45. Their order of selection is not important. Find the probability of holding a ticket that has zero winning numbers out of the 6 numbers selected for the winning ticket out of 45 the possible numbers
Answer:
p=39/45=13/15
Step-by-step explanation:
HELP ASAP 3/8 divided by 5/12 what is the quotient
Answer:
9/10
Step-by-step explanation:
Make the numerator 12 and denominator 5.
Now put both numerators together and the denominators together.
then multiply numerator by numerator and denominator by denominator.
please help, I’ll give brainliest to first answer.
x=60° because if 150°=90°+60° so a line is 180° consequently
90°+30°+x=180°
120°+x°= 180°
x°= 180°-120°= 60°
giving brainliest plz answer
Answer:
Surprisingly someone asked the same question.
Step-by-step explanation:
Credit to the person who actually answered.
Which choice is equivalent to the quotient shown here when x > 0?
(√42x^5)/(√6x^3)
Answer: x √7
Step-by-step explanation: A.P.E.X
Answer to your question is x√7 :)
Mr. Moore deposits $3,550 in a money market account with an interest rate of 22%. If he does not deposit or withdraw any money from the account, how much will he have at the end of 9 months?
Answer:
$10,579, assuming that 22% is the rate per month
Step-by-step explanation:
Here, I'll assume that the interest rate is per month.
The simple interest formula is [tex]I=Prt[/tex] (Interest = principal * rate * time). The rate and time need to use the same units.
The principal is $3550, the rate is 0.22, and the time is 9, so [tex]I=(3550)(0.22)(9)[/tex]. The product is 7029.
This is added to how much money he already has: 7029+3550=10579
Find the missing part.
X^2= AB^2 + BC^2
X^2= 8^2 + 10^2
X^2= 64+100
X^2= 164
X= 12.80
Mrs. Garcia is painting a portion of her wall as shown.
What is the area of the wall she will paint?
If one quart of paint covers 25 square feet, how many
quarts will she need to buy? [paint x area]
Answer:
Step-by-step explanation:
Which equation represents a line which is parallel to the line 2x+5y=-10
Answer:
-2x + -5y = 10
Step-by-step explanation:
1) How many solutions does x + y = 12 have?
Answer:
D ko alam hahahahhahaahahahahahahahahahahahahahahahaaha
The diameter of a circle is 8 centimeters. What is the area? Area cm Use = 3.14
Answer:
50.24
Step-by-step explanation:
3.14×4×4=50.24
Refer to the Exhibit Student Grades. The professor has informed the class that 7.93 percent of her students received grades of A. What is the minimum score needed to receive a grade of A
This question is incomplete, the complete question is;
Refer to the Exhibit Student Grades. A professor at a local university noted that the grades of her students were normally distributed with a mean of 73 and a standard deviation of 11.
The professor has informed the class that 7.93 percent of her students received grades of A. What is the minimum score needed to receive a grade of A
Answer:
the minimum score needed to receive a grade of A is 88.51
Step-by-step explanation:
Given the data in the question;
Let x represent the grades of the students that were normally distributed with mean μ = 73 and standard deviation σ = 11.
so, The professor has informed the class that 7.93 percent of her students received grades of A
the minimum score needed to receive a grade of A will be:
P( X > x ) = 7.93 %
P( X > x ) = 0.0793
1 - P( X ≤ x ) = 0.0793
- P( X ≤ x ) = 0.0793 - 1
- P( X ≤ x ) = - 0.9207
P( X ≤ x ) = 0.9207
⇒ P( X-μ/σ ≤ x-μ/σ ) = 0.9207
so, x-μ/σ = InvNormal( 0.9207 )
x-μ/σ = 1.41
(x - 73) / 11 = 1.41
(x - 73) = 1.41 × 11
(x - 73) = 15.51
x = 15.51 + 73
x = 88.51
Therefore, the minimum score needed to receive a grade of A is 88.51
1. Find the surface area using the net 20 m 12 m 12 m 2. Find the surface area.
Answer:
1248
Step-by-step explanation:
Surface are of a rectangular prism can be found using:
A=2(wl+hl+hw)
Plug in the given values of
l= 12m
w=12m
h=20m
to this equation and you get:
1248
Your teacher has disabled instant marking. Your marks will appear after the due date.
48%
A community centre organises a raffle to raise money for charity.
There is 1 prize to be won in the raffle.
Daniel buys 17 raffle tickets.
A total of 280 tickets were sold.
Find the probability that Daniel does not win the prize.
Answer:
263/280 or 0.9
Step-by-step explanation:
if daniel has 17 raffle tickets that mea\ns he has 17 chances of winning. and the question says chance that he wont win
so
280-17 (out of 280)
=263/280
A. Find the slope of the line,
b. Find the y-intercept of the line.
c. Write the equation for the line.
Answer:
slope:-2/3
y-intercept= 2
equation y= -2/3x+2
Step-by-step explanation:
pick two points from graph then plug to the formula to find the equation
I arrive at 5:52 and play for 1 hour and 12 mins. What time do I stop playing?
Answer:
7:04 p.m.
Step-by-step explanation:
Answer:
7:04
Step-by-step explanation
12-8 + 4
5:52 + 0:08 = 6:00
6:00 + 1:00 + 7:00
7:00 + 0.04 = 7:04
Cumulative Frequency (C.F)
a- The fraction or percentage of
observation below the upper
boundary of each successive
interval.
b- The absolute frequency divided
by the total number of observation.
C-Its obtained by adding relative
Frequency
d-b and c
e-a and c
f-all of the above.
Answer:
number 2 + 4i is one of the root to the quadratic equation x 2 + bx + c = 0, where b and c are real numbers. a) Find b and c b)
Step-by-step explanation:
On Sunday, a local hamburger shop sold a combined total of 252 hamburgers and cheeseburgers. The number of cheeseburgers sold was two times the number of hamburgers sold. How many hamburgers were sold on Sunday?
Answer:
84 Hamburgers
Step-by-step explanation:
Hamburger = x
Cheeseburger = 2x
x+2x = 252
252/3 = x
x = 84
Hope this helps! (:
A 6 ft. tall man casts a shadow that is 5 ft. tall. What will be the length of the flagpole that casts a shadow of 10ft?
Answer:
12 ft.
Step-by-step explanation:
You can solve this as a proportion:
[tex]\frac{6}{5} =\frac{x}{10}[/tex]
Cross multiply to get 5x = 60. Simplify by dividing 5 from both sides to get x = 12.
Hope it helps!
help me me need help me me me me me
Answer:
The last answer D.
Step-by-step explanation:
There is a short trick that I just used to answer this question, all you have to do is add 12 plus 5 to see how many 1/12ths you would have and then add up all the answer options until you get to 17, and the only one that does is the last one, D.
Hope this helps :)