Answer:
The first one is blinded. I didn't get the other one though. The one that says "neither the subjects nor the researchers" is wrong.
Step-by-step explanation:
I use Plato.
The experiment is blindeded because the scientist know which treatment group each subject is in.
What is experiment?Experiment is the scientific approach to determine the properties of some sample by doing some research on it eg. By adding another material, or determination of hypothesis.
What is hypothesis?Hypothesis is the assumption which is made under some evidence which can be proceed further verification or by doing experiment on it.
From the question it is clear that the scientist wants to meassure the effect of apple cider vinegar subject on the blood sugar level.
So here the effect of apple cider vinegar subject on the blood sugar level is hypothesis.
From 200 randomly choosen young groups one half have taken apple cider where other half have taken placebo in order to clarify and study which group has taken which treatment and their effect in their blood sugar level.
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Select the correct answer.
Mary and Nikki are collecting signatures for a petition. Function m models the total number of signatures on Mary’s petition x days after they started collecting signatures. Function n models the total number of signatures on Nikki’s petition at the same time.
m(x) = 252 + 21x
n(x) = 211 + 16x
Which function correctly represents the number of signatures Mary and Nikki have gathered altogether, x days after they started collecting signatures?
A. (m + n)(x) = 41 + 37x
B. (m + n)(x) = 463 + 5x
C. (m + n)(x) = 463 + 37x
D. (m + n)(x) = 41 + 5x
Answer:
C. (m + n)(x) = 463 + 37x
Step-by-step explanation:
How many ways can a president, vice-president, and secretary be chosen from a club with 9 members?
This type of problem is a permutation problem. Permutation is the arrangement of a set with certain order. In the problem, if there are 9 members, and 3 positions are available without repeating, we can write the expression as 9P3 - 3 non repeating positions in a set of 9 elements. By evaluating, we will have 9! / (9-3)! = 504. The answer is 504.
The product of two numbers is 26 and one of the numbers is one larger than six times the other number. find the numbers.
The numbers that the product is 26 and one of the numbers is one larger than six times the other number are 2 and 13.
How to form equation and solve for the variable?The product of two numbers is 26.
let the two numbers be x and y.
Therefore,
xy = 26
One of the numbers is one larger than six times the other number. Therefore,
x = 1 + 6y
Hence,
xy = 26
(1 + 6y)y = 26
y + 6y² = 26
6y² + y - 26 = 0
using quadratic formula,
[tex]\frac{-b + \sqrt{b^{2} -4ac } }{2a}[/tex]
where
a = 6
b = 1
c = - 26
Therefore,
y = 2 or - 13 / 6
We can only use the positive value.
Hence,
2x = 26
x = 26 / 2
x = 13
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the smallest number that has 1, 2, 3, 4, and 5 asfactors.
Answer:
The answer is 60
Korey’s comic book store has been up and running for 4 years. korey feels that his store has been successful and is considering moving to a larger property to allow for greater inventory and customer opportunities in his business. he would like investors to cover the cost of his expansion. the profits of korey’s comic book store for its first four years are outlined below. according to this information, what would be the best estimate for korey to quote as expected profits in the next year in his new business plan? year net profits 1 $14,250.00 2 $15,390.00 3 $16,621.20 4 $17,950.90 5 a. $20,550.19 b. $19,090.90 c. $19,280.60 d. $19,386.97 please select the best answer from the choices provided a b c d
Based on his net income growth rate over the past 4 years, Korey's comic book store can quote expected profits of $19,386.97.
What is the expected profit?The expected profit is the probability of getting a profit on a certain amount.
First, we need to find the rate of growth for his income
= (4th year income - 3rd year income) / 3rd-year income
= (17,950.90 - 16,621.20) / 16,621.20
= 8%
The expected income
= 4th year income x ( 1 + growth rate)
= 17,950 x ( 1 + 8%)
= $19,386.97.
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Which will have a negative number?
A)
(-3)(-9)
B)
(-6)(4)
C
-4 --5
D)
-7+9
Answer:
B
positive times negative equal to negative
(-6)(4) = -24
4
Is this a function?
Is this a function?
Yes
No
Cannot be
determined
A Yes
B) No
Cannot be determined
Which of the following statements regarding the transmission of pathogens from environmental surfaces are true?
a. Pathogens can be spread by contact with contaminated surfaces.
b. Placing a resident in a room previously occupied by a C. diff positive resident increases the risk for acquiring C. diff. c. You must touch a surface for at least 3 minutes for pathogenic transfer to occur. d. Most pathogens can only survive on surfaces for a few minutes
TRUE statements regarding the transmission of pathogens via environmental surfaces are the statements in option A and B.
What are Pathogens?Pathogens can be referred to as microscopic organisms which can cause diseases and illness. They are bacteria, fungi, virus or other disease causing organisms.
These pathogens can be transmitted via environmental surfaces especially by coming in contact with contaminated surfaces. Some pathogens survive longer on surfaces, while some only survive for few minutes.
If someone is placed in a room previously occupied by an infected person, the chances of contacting that same disease is high.
Thus, the statements that are TRUE regarding the transmission of pathogens via environmental surfaces are the statements in option A and B.
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PLEASE HELP I NEED IT REALLY BAD
Btw, my mistake, correction for the volume of prism, it's supposed to be:
Area of cross section × height
Hope this helps =)
What is the perimeter of triangle ACD?
Will mark brainlyest!!!
Answer:
12
Step-by-step explanation:
Perimeter: a + b + c
Now lets solve!!
5 + 4 + 3 = ?
9 + 3 = ?
12 = ?
Have an amazing day!!!
Please rate and mark brainliest!!
Whats the surface area of this prism?
Answer:
25
Step-by-step explanation:
brainly keeps deleting my answer But its 7 + 12 + 6 = 25
2a x a x 3a + b x 4b
Simplify
At a summer camp, a student has to choose an activity from group A and an activity from group B. How many different combinations of activities can he choose from?
Group A
swimming
canoeing
kayaking
snorkeling
Group B
archery
rappelling
crafts
cooking
A:8
B:2
C:4
D:16
Answer:
16
Step-by-step explanation:
each activity is worth 4.
Each Handle is 1/4 the width of the handlebars. How many inches long is each Handle. Width of Handlebar is 2 ft
Answer:
1/2 feet
Step-by-step explanation:
1/4 of 2 feet is 1/2
There are 1/2 inches long is each Handle.
What is Multiplication?To multiply means to add a number to itself a particular number of times. Multiplication can be viewed as a process of repeated addition.
Given that;
Each Handle is 1/4 the width of the handlebars.
And, Width of Handlebar is 2 ft
Hence, Lenght of each Handle is,
⇒ 1/4 of 2
⇒ 1/4 x 2
⇒ 1/2 feet
Thus, There are 1/2 inches long is each Handle.
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what is the answer to this problem
Answer:
OPTION C
Step-by-step explanation:
[tex] \frac{1}{2} (x - \frac{3}{4} ) = \frac{5}{12} [/tex]
[tex](x - \frac{3}{4} ) = \frac{5}{6} [/tex]
[tex]x = \frac{3}{4} + \frac{5}{6} [/tex]
[tex]x = \frac{9 + 10}{12} [/tex]
[tex]x = \frac{19}{12}
\frac{3}{4} y - \frac{3}{2} = \frac{5}{2} [/tex]
[tex] \frac{3}{4} y = 4[/tex]
[tex]y = \frac{16}{3} [/tex]
Two groups of students took the same test. Their results are indicated in the dot plot below.
Which statement is true?
answers:
A. Based on visual inspection, Group B appears to have less variability in scores than Group A.
B. Because Group A has a lower minimum score than Group B, it has a lower median as well.
C. Because both distributions have a mean score of 80, they are very similar in terms of variability.
D. Based on visual inspection, Group A appears to have a higher average score than Group B.
if rx - st = r , which expression represents x
Can anybody help me with any of these questions?
Answer:
I can't help sorry which grade ??
For which equation is 0 not a solution?
x - 5 = 4
6 x + 4 = 4
3 x = 0
x + 9 = 9
Answer:
x-5=4, the answer for that equation is not 0. so that is your answer.
Step-by-step explanation:
if 6 pairs of socks cost $6.90, what is the price for one pair of socks
Answer:
1.15
Step-by-step explanation:
6.90 divided by 6 is 1.15
Answer:
$1.15
Step-by-step explanation:
6.90/6 = 1.15
Question 1 options:
13.5
12
13
11
Answer: 13
nothing in between 13
Down below
If 15 pies will serve 120 people, how many pies are needed for 152 people?
Answer:
nineteen
Step-by-step explanation:
120 people = 15 pies
divide both sides by 120
1 person = 15/120 pies
152 people = 15/120 x 152 pies
= 15/30 x 38 = 1/2 x 38 = 19
To find the answer, you divide 120 by 15, which is 8.
What is the quotient of (x3 – 3x2 3x – 2) ÷ (x2 – x 1)?
Answer:
-18x^2+3x-2/x
Step-by-step explanation:
What is the length of side s of the square shown below?
Answer:
A
Step-by-step explanation:
Pythagorean theorem
s^2 + s^2 = 2^2
2s^2 = 4
s^2 = 2
s = sqrt 2
1/10 Write as a decimal. Then compare 1/10and 0.104. 1/10 =
Answer: 0.1
0.1<0.104
Step-by-step explanation:
Offering 55 points to anybody that can solve this! Pls, it's due in like 30 mins!!
Answer:
Show image
Step-by-step explanation:
When reflecting on x-axis, the x-values stay the same and y-values change their signs.
When reflecting on y-axis, the x-values change signs and y-values stay the same.
Answer:
A B and C is there
Step-by-step explanation:
Id appreciate if youd give brainliest :)
Ratidzo bought 25,2kg of tea at $8,75 a kg.How much did she pay for the tea.
Determine the seating capacity of an auditorium with 10 rows of seats if there are 15 seats in the first row, 19 seats in the second row, 23 seats in the third row, 27 seats in the fourth row, and so on. Total number of seats =
Answer:
94 capacity
Step-by-step explanation:I did math
Triangle ABC has a perimeter of 40 inches. What is AC?
Answer:
AC is a Side of Traingle .....................
The measure of the side length of AC will be 13 inches
What is the perimeter of a triangle?Let the triangle be ABC. Then the perimeter of the triangle will be
Perimeter = AB + BC + CA
Triangle ABC has a perimeter of 40 inches.
The side's lengths are given as AB = 12 inches and BC = 15 inches.
Then the measure of the side length of AC will be
40 = 12 + 15 + AC
40 = 27 + AC
AC = 13 inches
The missing diagram is given below.
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Lee fills a watering can with 8 cups of water. He pours 4 fluid ounces of the water onto each of the 10 plants in his room. How many cups of water are left in the can?
By performing a change of units, we will see that the amount of water left in the can is 3 cups.
How many cups of water are left in the can?We know that the can originally has 8 cups of water.
Then, you use 4 fluid ounces into each of 10 plants, then the amount used is:
40 fluid ounces.
Now we need to do a change of units.
8 fluid ounce = 1 cup.
1 = (1 cup/ 8 fluid ounces)
Then we can rewrite:
40 fluid ounces = 40 fluid ounces*(1 cup/ 8 fluid ounces) = 5 cups.
This means that lee used 5 cups out of the 8 in the can, so the amount of water left is:
8 cups - 5 cups = 3 cups.
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