Answers
Related Questions
For each of the following research scenarios, decide whether the design uses a related sample. If the design uses a related sample, identify whether it uses matched subjects or repeated measures. (Note: Researchers can match subjects by matching particular characteristics, or, in some cases, matched subjects are naturally paired, such as siblings or married couples).
A researcher is interested in whether people eat more or less when they are in a hurry. The researcher collects a random sample of 80 adults and invites them to eat two (identical) free meals one month apart. For one of the meals, no time restriction is placed on the meal. For the other meal, participants are told when their meal is served that they have only 10 minutes until another group is due to sit down. Half of the participants eat their hurried meal first; the other half eat it second. The researcher compares the amount eaten at each sitting. The design described_____.
John Cacioppo was interested in possible mechanisms by which loneliness may have deleterious effects on health. He compared the sleep quality of a random sample of lonely people to the sleep quality of a random sample of nonlonely people. The design described____.
a. uses a related sample (repeated measures).
b. uses a related sample (matched subjects).
c. does not use a related sample.
Answers
Answer:
A.) uses a related sample (repeated measures).
B.) does not use a related sample.
Step-by-step explanation:
The first scenario uses a related sample whereby same subjects were used to over the course of each related experiment (comparing if people eat more or less when in a hurry). After the completion of both experiment, we'll have two different reading for each subject which a b further be used to compare the difference in consumption when in a hurry and when not.
The second scenario here fails to employ a related sample design as the the subjects used have contrasting characteristics, a group consisting of lonely people and another consisting of those who aren't lonely.
Each statement describes a transformation of the graph of
y = ex. Which statement correctly describes the graph of
y = e(x + 3) - 7?
A.
It is the graph of y = ex translated 7 units down and 3 units to the left.
B.
It is the graph of y = ex translated 3 units down and 7 units to the left.
C.
It is the graph of y = ex translated 3 units up and 7 units to the left.
D.
It is the graph of y = ex translated 7 units down and 3 units to the right.
Answers
C.
it is the graph of y = ex translated 3 units up and 7 units to the left.
step-by-step explanation:
use desmos trust me it’s a life saver
Can someone help me
Answers
Answer:
Slope=m=5/4
Point through which line is passing is (X,Y)=(4,−1)
By using slope-point form, the equation of line is given as,
(y−Y)=m(x−X)
(y−(−1))=5/4(x−4)
(y+1)=5x/4−5
(y+1)=(5x−20)/4
4(y+1)=5x−20
4y+4=5x−20
5x−4y−20−4=0
5x−4y−24=0
is the equation of line passing through the point (4,−1)and having slope 5/4
Hope it helps you :)
Step-by-step explanation:
2) Multiply
(6x+3)(3x2+8x+5)
Help, please shore me how to do this!
Answers
Answer:
Result :
3 • (2x + 1) • (x + 1) • (3x + 5)
Step-by-step explanation:
Reformatting the input :
Changes made to your input should not affect the solution:
(1): "x2" was replaced by "x^2".
STEP1
Equation at the end of step 1
(6x + 3) • ((3x2 + 8x) + 5)
STEP2
STEP3
Pulling out like terms
3.1 Pull out like factors :
6x + 3 = 3 • (2x + 1)
Trying to factor by splitting the middle term
3.2 Factoring 3x2 + 8x + 5
The first term is, 3x2 its coefficient is 3 .
The middle term is, +8x its coefficient is 8 .
The last term, "the constant", is +5
Step-1 : Multiply the coefficient of the first term by the constant 3 • 5 = 15
Step-2 : Find two factors of 15 whose sum equals the coefficient of the middle term, which is 8 .
-15 + -1 = -16
-5 + -3 = -8
-3 + -5 = -8
-1 + -15 = -16
1 + 15 = 16
3 + 5 = 8 That's it
Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above, 3 and 5
3x2 + 3x + 5x + 5
Step-4 : Add up the first 2 terms, pulling out like factors :
3x • (x+1)
Add up the last 2 terms, pulling out common factors :
5 • (x+1)
Step-5 : Add up the four terms of step 4 :
(3x+5) • (x+1)
Which is the desired factorization
sorry if its too much...
Which of these is the statement of the zero product rule?
O A. If a·b = 0, then a = 0 and b= 0.
O B. If a• b = 0, then either a = 0 or b = 0, or both.
C. Ifa:b= 0, then a = 0.
D. If a·b = 0, then either a = 0 or b = 0, but not both.
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the answer is B. I need 20 characters
From a standard deck of cards, your first draw is a black card. You replace the card, and the second draw is a diamond. Which THREE statements are correct for the outcome of the event? A) The probability of drawing the black card is 1/2 B) The probability of drawing the diamond is 1/4 C)The probability of the compound event is 1/6 D) The probability of the compound event is 1/8 E) The probability of the compound event is 3/4
Answers
A: because there are two colour types in a deck of cards, so it’s 1/2 probability of getting a black one.
B: because there a four suits in a deck of cards, so the probability of getting a diamond is 1/4
D: because when calculating compound events we multiply the two probabilities,
so 1/2 x 1/4 = 1/8
I need help on this
Answers
Answer:50
Step-by-step explanation:
Tessellations
Rotate the parallelogram 180° clockwise about point Q.
Please select the best answer from the choices provided
Answers
Answer:
D.
Step-by-step explanation:
I calculated it logically
Answer choices)
A. (2/3x, 2/3y)
B. (3/2x, 3/2y)
C. (1/2x, 1/2y)
D. (2x, 2y)
Please help me :((
Answers
9514 1404 393
Answer:
B. (3/2x, 3/2y)
Step-by-step explanation:
It is perhaps easiest to see that B' is 3 grid squares from the origin while B is 2 grid squares from the origin. The scale factor is the ratio of these distances:
3/2
Dilation about the origin multiplies each coordinate value by the scale factor:
(x, y) ⇒ (3/2x, 3/2y)
-2,6,-18,54 find the 12th term
Answers
Answer:
354294
Step-by-step explanation:
-2,6,-18,54,-162,486,-1458,4374,-13122,39366,-118098,354294
multiply each number by -3
what is the area of this figure?
Answers
Answer:
4 ssquare units
Step-by-step explanation:
Which of the following could be the system of nonlinear inequalities graphed
below?
O A. y> x2 - 5x + 6
y< 5
B. y> x2 - 5x + 6
y25
O C. yz x2 - 5x + 6
y< 5
D. y: x2 - 5x + 6
ys 5
Answers
Answer:
I think A is the correct answer
Durante el año pasado, 450 de 1,530 estudiantes recibieron beca de estudios. ¿Qué fracción de los estudiantes recibieron beca de estudios?
Answers
HELP ASAP!! jjwjwhwjabagajsbs
Answers
Answer: 90% of people marry there 7th grade love. since u have read this, u will be told good news tonight. if u don't pass this on nine comments your worst week starts now this isn't fake. apparently if u copy and paste this on ten comments in the next ten minutes you will have the best day of your life tomorrow. you will either get kissed or asked out in the next 53 minutes someone will say i love you.
Step-by-step explanation:
Do I have to take the STAAR test in Aldine ISD as an online student?
Answers
Answer: Yes!
Step-by-step explanation:
Hello, I'm a brainly helper. Well..not really but i want to become one soon so if you need help with any question or anything else let me know, I am ALWAYS happy to help! Thxs.
There is a bin of markers.
For every 2 red markers, there are
5 purple markers. Use the table to
represent the ratio of purple
markers to red markers.
Answers
factors of 54 and 36 all factors correct = brainliest answer
Answers
9514 1404 393
Answer:
54 = 2 × 3³
36 = 2² × 3²
Step-by-step explanation:
The term "factors" can mean different things in this context. Usually, it means "prime factors." Exponents are used to indicate the number of times a factor is repeated. The prime factors of these numbers are ...
54 = 2 × 3³
36 = 2² × 3²
__
Sometimes, we use the word "factors" to mean "positive integer divisors." The number of divisors is the product of the exponents of the prime factors, each increased by 1. That is, 54 has (2·4) = 8 divisors; 36 has (3·3) = 9 divisors. The odd number of divisors is one indication that the number is a perfect square.
The divisors of these numbers are ...
54 is divisible by 1, 2, 3, 6, 9, 18, 27, 54
36 is divisible by 1, 2, 3, 4, 6, 9, 12, 18, 36
Please answer the question question correctly with factual information for brainliest.
Answers
Answer:
B) 17 cm
Step-by-step explanation:
Given that:
length of first side = 8 cm
length of the second side = 15 cm
The hypotenuse of the given triangle can be determined by applying the Pythagoras theorem.
[tex]/hyp/^{2}[/tex] = [tex]/adj 1/^{2}[/tex] + [tex]/adj 2/^{2}[/tex]
= [tex]15^{2}[/tex] = [tex]8^{2}[/tex]
= 225 + 64
[tex]/hyp/^{2}[/tex] = 289
hyp = [tex]\sqrt{289}[/tex]
= 17
The hypotenuse of the triangle is 17 cm.
which quadrant would contain the point -3, 3
please help!
thankyou!
Answers
Answer:
Quadrant 2
Step-by-step explanation:
(-3,3) when plotted on a graph fits into quadrant 2!
Scores for a common standardized college aptitude test are normally distributed with a mean of 496 and a standard deviation of 110. Randomly selected men are given a Test Preparation Course before taking this test. Assume, for sake of argument, that the preparation course has no effect. If 1 of the men is randomly selected, find the probability that his score is at least 545.7. P(X > 545.7)
Answers
Answer:
0.3257
Step-by-step explanation:
Given an approximately normal distribution:
Z = (x - mean) / standard deviation
Mean = 496 ; Standard deviation = 110
For :
P(x > 545.7)
We obtain the standardized, Z score
Z = (545.7 - 496) / 110
Z = 49.7 / 110
Z = 0.4518
Hence, using the Z distribution table :
P(Z > 0.4518) = 1 - P(Z < 0.4518)
P(Z > 0.4518) = 1 - 0.67429
P(Z > 0.4518) = 0.32571
Using the distributive property, Marta multiplied the binomial (2x + 3) by the trinomial (x2 + x – 2) and got the expression below.
(2x)(x2) + (2x)(x) + (2x)(–2) + (3)(x2) + (3)(x) + (3)(–2)
Which is the simplified product?
Answers
Answer:
[tex]2x^3 + 5x^2 -x -6[/tex]
Step-by-step explanation:
Given
[tex](2x)(x^2) + (2x)(x) + (2x)(-2) + (3)(x^2) + (3)(x) + (3)(-2)[/tex]
Required
The simplified product
We have:
[tex](2x)(x^2) + (2x)(x) + (2x)(-2) + (3)(x^2) + (3)(x) + (3)(-2)[/tex]
Open bracket
[tex](2x)(x^2) + (2x)(x) + (2x)(-2) + (3)(x^2) + (3)(x) + (3)(-2) = 2x^3 + 2x^2 -4x + 3x^2 + 3x -6[/tex]
Collect like terms
[tex](2x)(x^2) + (2x)(x) + (2x)(-2) + (3)(x^2) + (3)(x) + (3)(-2) = 2x^3 + 2x^2+ 3x^2 -4x + 3x -6[/tex][tex](2x)(x^2) + (2x)(x) + (2x)(-2) + (3)(x^2) + (3)(x) + (3)(-2) = 2x^3 + 5x^2 -x -6[/tex]
Hence, the simplified product is: [tex]2x^3 + 5x^2 -x -6[/tex]
A spinner is divided into 5 equal sections using the pictures of a horse, dog, cat, house, and mouse. After 20 spins, the spinner lands on the horse 2 times the dog 5 times the cat 4 times the house 4 times and the mouse 5 times. What is the experimental probability of the spinner landing on house?
Answers
Answer:
1/5
Step-by-step explanation:
No matter how many times you spin, it will always remain random. (With a few exceptions)
Pls help math lol. Yeah
Answers
Answer:
X = 65 degrees
Step-by-step explanation:
180 = 70 + 45 + X
180 = 115 + X
X = 65 degrees
Find the value of x.
B
X+2
3
E
2
X
С
A
x = [?]
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Answer:
answer is given in up paper. where ans is -1/2
"solve the quadratic equation"
Answers
Answer:
huh
Step-by-step explanation:
Answer:
x = +1 and -1
Step-by-step explanation:
y = (x + 1) (x - 1)
=> x + 1 = 0 and x - 1 = 0
=> x = -1 and x = +1
Hope this helps!
Translate the word problem into an equation and solve algebraically. Include correct units. The length of a
rectangular area is 4 feet more than its width. If the area is 45 square feet, find the length and the width of the
rectangle.
Answers
Step-by-step explanation: TS 5 15 8 26
L = W + 4
Area = 45 ft²
Area = LW
Area = (W +4)(W) = 45 ft²
W² + 4W - 45 = 0 solve for W
(W + 9)(W - 5) = 0
W = -9 or 5 a minus 9 width makes no sense
L = W + 4
L = 5 + 4
W = 5 ft L = 9 ft
GIVING OUt BRAINLIEST HELP PLSSS
Answers
Answer:
Step-by-step explanation:
135 degrees
brainly plz
In a duck egg the ratio of yolk to white is
3:2. If the egg white weighs 14g, calculate
the weight of the yolk.
Answers
Answer:
21gm in my calculations u can also try
Step-by-step explanation:
3/2=14
3×7
21 ans
Answer:
21g
Step-by-step explanation:
Please see the attached picture for the full solution.
Which questions are statistical questions?
Answers
Answer:
whats the number of the class.
what's my height
how many students from each school in this city loves football
what is the height of each student inmy class
how many servings of fruit did I eat each day thus month
1,861 rounded to the nearest tenth
Answers
Answer:
I assume that you meant 1.861.
If that is true, then 1.9 would be your answer.
Hope that this helps!
Answer:
1860
Step-by-step explanation:
