Answers
Check the picture below.
Related Questions
elect all the correct answers.
A group of scientists is conducting an experiment on the effects of media on children. They randomly select 100 children and randomly assign each child to one of four treatment groups. Each treatment group has a specific amount of screen time during a one-week time frame. The first group has no screen time, the second group has two hours of screen time, the third group has four hours of screen time, and the fourth group has six hours of screen time.
After the first week, the scientists conduct the same experiment, with the same subject groups, for three more weeks so that each group experiences each of the four treatments.
Which statements about this study are true?
This study uses blinding.
This study uses blocking.
This study uses a control group.
This study uses a repeated measures design.
This study uses random sampling.
Answers
this study uses random sampling
this study uses a control group
this study uses a repeated measures design
plato/edmentum
Answer:
This study uses a control group. This study uses a repeated measures design.
Students in a fifth-grade class were given an exam. During the next 2 years, the same students were retested several times. The average score was given by the model f ( t ) = 92 − 4 log 10 ( t + 1 ) , 0 ≤ t ≤ 24 where t is the time in months.
Answers
Using the logarithmic function, it is found that:
a) The initial score is of 92.
b) After 6 months, the score is of 88.6.
c) After 18 months, the score is of 86.9.
The average score after t months is modeled by:
[tex]f(t) = 92 - 4\log{(t + 1)}[/tex]
Item a:
The initial score is of f(0), hence:
[tex]f(0) = 92 - 4\log{1} = 92 - 0 = 92[/tex]
The initial score is of 92.
Item b:
After 6 months, the score is of f(6), hence:
[tex]f(6) = 92 - 4\log{7} = 88.6[/tex]
After 6 months, the score is of 88.6.
Item c:
After 18 months, the score is of f(18), hence:
[tex]f(6) = 92 - 4\log{19} = 86.9[/tex]
After 18 months, the score is of 86.9.
A similar problem is given at https://brainly.com/question/24286043
The difference of a number and six is negative four
Answers
What is 1/3÷1/2 math answers?
Answers
Step-by-step explanation:
If you like my answer than please mark me brainliest thanks
I REALLY NEED HELP CAN SOMEBODY PLZZZ HELP MEEEE
Answers
How to find answer to: 8% of ? = 20
Answers
Answer:
You have to do 8/100 * 20
Step-by-step explanation:
Sabrina has eight boxes of crayons, with ten crayons in each box. She uses twelve crayons. How many crayons does she
have left?
Answers
Answer:
68
Step-by-step explanation:
8 boxes. 10 per one box. 8×10=80
80-12= 68
What is 68×4-43..? XP I really need help with this one.
Answers
229
Step-by-step explanation:
Do order of operations so you multiply 68 by 4 first which is 272. Then you subtract 43 from that and you get 229.
Hope this helps!
Find the equation of the line shown!!!
Answers
Answer:
y = x + 6
Step-by-step explanation:
simplify the expression 5 (6 + 7 and) using the distributive property
Answers
Answer:
65
Step-by-step explanation:
5(6 + 7)
Distribute 5 to 6 and 7.
(5x6)+(5x7)
Multiply.
30+35
Add.
65
Hope this helps :)
The difference between 12 and ten times a number is -28
Answers
Answer:
4Step-by-step explanation:
[tex]n-\text{the number}\\\\12-10n=-28\qquad|\text{subtract 12 from both sides}\\\\12-12-10n=-28-12\\\\-10n=-40\qquad|\text{divide both sides by (-10)}\\\\\dfrac{-10n}{-10}=\dfrac{-40}{-10}\\\\\boxed{n=4}[/tex]
Ana is a dedicated Skee Ball player (see
photo) who always rolls for the 50-point slot. The
probability distribution of Ana’s score X on a single
roll of the ball is shown below. You can check that
Mx = 23.8 and og
12.63.
Find and interpret mean
Find and interpret standard deviation
Answers
Answer:
i dont know 69 420?
Step-by-step explanation:
Divide the following polynomial, then place the answer in the proper location on the grid.
(a^2n - a^n - 6) (a^n + 8)
Answers
Answer:
Step-by-step explanation:
(a^2n/a^n+8) - (a^n/a^n+8) - (6/a^n+8)
I'm not sure if this is what you're looking for but I got this when dividing.
A square is inscribed in a circle as shown below. The radius of the circle is
decreasing at a constant rate of ½ centimeter per second. When the
radius of the circle is 4√2 centimeters, what is the rate of change of the
area of the shaded region found outside the square but inside the circle.
Answers
Answer:
3
Step-by-step explanation:
What’s 100/100 in simplest form
Answers
Explanation
It’s just 1
Answer:
1 or 1/1.
Step-by-step explanation:
100/100 simplest form is 1.
We know this because 100/100 is 1. You could just do 1/1.
100/100 to 10/10 to 1/1 which is 1.
please answer fully ?/'//////////////////////
Answers
Answer:
(saving my answer for the question)
what is the problem?
Step-by-step explanation:
Find the quotient. Answer
should be in simplest form.
Answers
An object is dropped from a height of 288 feet. The equation, - 16t ^ 2 + 288t = h(t) represents the height, hof the object after tseconds. How long does it take the object to the ground?
0 seconds
16 seconds
18 seconds
88 seconds
Answers
18 seconds
Step-by-step explanation:
The object will reach the ground when its height h(t) = 0. Therefore, we can write
[tex]h(t) = 288t - 16t^2 = 0 \Rightarrow 16t^2 = 288t[/tex]
Solving for t, we get
[tex]16t = 288 \Rightarrow t = 18\:\text{s}[/tex]
Need help with this quick plz??
Answers
Answer:10 or someones else’s answer this not my best
Step-by-step explanation:
Please help with the homework thanks
Answers
Answer:
1. 7
2. 8
3. 17 cars
4. 6 guppies
5. 54
6. 15 pencils
Step-by-step explanation:
Have a great day! Feel free to mark as brainliest! :)
=
Given f(x) = 3x2 + 5x + k, and the remainder when f(x) is divided by
x + 3 is 29, then what is the value of k?
Answers
Answer:
the answer is k=2
Step-by-step explanation:
Can someone please help me
Answers
Answer:
The linear ones
options 1 and 3
Step-by-step explanation:
4 and 5 are parabolic with maxima at y = -4 and minima at y = -3.25 respectively
2 is asymptotic to the negative x axis on the positive side
Find the sum 52,679 + 3,596
Answers
Answer:
56,275
Step-by-step explanation:
Slope = -7 and passing through (-4,34)
Answers
if it is asking for point slope form the answer is : y-34=-7(x+4)
if it is asking it in slope intercept form the answer is: y=-7x-62
I am greater than 320. You say my number if you start at 324 and count from 10 to 10. I have the same number of tens and ones.
Answers
Answer:
344
Step-by-step explanation:
Um..... sorta confusing, but I think you are only allowed to increase by 10 each time, so then you need to add 20 to make 344, where the units digit and tens digit are the same
Find the volume of a square based pyramid with a base length of 8 m and a height of 14 m.
Answers
[tex]V = \frac{1}{3} \times base \: area \: \times height \\ [/tex]
[tex]V = \frac{1}{3} \times {8}^{2} \times 14 \\ [/tex]
[tex]V = \frac{1}{3} \times 64 \times 14 \\ [/tex]
[tex]V = \frac{896}{3} \: \: \: {m}^{3} \\ [/tex]
Pre college need help
Answers
Answer:
f(-8) = 169
Step-by-step explanation:
reasoning: it only touches the curve/line once. that’s a trick my old teachers taught me.
28) f(-8) =169
I hoped I helped. #28 is confusing so I sincerely apologize if I’m incorrect.
What is the product of ?
Answers
Answer: Mathematics
Step-by-step explanation:
Answer: Hello I want to know what is the product of what you need to give me a number.
Step-by-step explanation:
Serena has 24 apps on her tablet. Of these apps, 6 are games. What percent of Serena's apps are games?
Answers
Answer:
25%
Step-by-step explanation:
Like and give 5 star rating
Mark brainllest please
An airplane flies with a constant speed of 720 miles per hour. How far can it travel in 14 minutes?
Answers
Answer:
It is 168 miles
Step-by-step explanation:
720 divided by 60 is 12. 12 times 14 is 168