four examples of bias
Answer:
the 4 main types of bias in research – sampling bias, nonresponse bias, response bias, and question order bias – that are most likely to find their way into your surveys and tamper with your research results
Step-by-step explanation:
.-.
Simplify 3 square root of -96
Answer: y = x 2 + 93 x − 288
Your Welcome
what is the equivalent ratio to 1:5?
Answer:
2:10; 3:15; 4:20; etc
Step-by-step explanation:
The equivalent rations can be found by finding a common factor for 1:5. Examples include 2:10, 3:15, 4:20, etc. All of these have a common factor and thus are the equivalent ratios to 1:5.
The equivalent ratio to 1:5 is 2:10,3:15,4:20, etc.
Given that,
We need to find the equivalent ratio to 1:5.Here the equivalent ratio could be determined by measuring the common factor.
Like 2:10 = 1:5
3:15 = 1:5
4:20 = 1:5
Therefore we can conclude that the equivalent ratio to 1:5 is 2:10,3:15,4:20, etc.
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Can anyone help me with this? Thank you!
The _____ is used to compare values that are proportional.
The Proportionality Constant is used to compare values that are proportional.
What is the meaning of Proportionality ?When two variables are proportional to each other , change in one cause the change in the other .
There are two types of proportion, Direct and Indirect.
When on increasing one variable the other increases and vice versa it is called direct proportion .
When on increasing one variable the other decreases and vice versa it is called indirect proportion .
In the given question
The _____ is used to compare values that are proportional.
The Proportionality Constant is used to compare values that are proportional.
suppose
a ∝ b
a = kb
here k is the Proportionality Constant and is used to compare the values.
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You decide to start a dog walking business and are trying to plan how much you to charge. You determine that you can only walk 5 dogs at the most at any given time. You also decide to charge in 30 minute intervals and, due to your schedule, you can only walk for 3 hours a day. Based on those conditions, what is the most amount of dogs that you can walk in a given day?
Answer:
The most amount of dogs that you can walk in a given day is 30 dogs.
Step-by-step explanation:
You decide to charge in 30 minute intervals, and due to your schedule you can only walk 3 hours a day. Then you must know how many intervals of walks you can do in those 3 hours a day that you can walk. Being 1 hour equal to 60 minutes, then 30 minutes equals 2 intervals in 1 hour. Then you can apply the following rule of three: if in 1 hour there are 2 intervals of 30 minutes, in 3 hours how many intervals of 30 minutes are there?
[tex]amounts of intervals=\frac{3hours*2 intervals}{1 hour}[/tex]
amount of intervals= 6 intervals
You determine that you can only walk a maximum of 5 dogs at a given time, that is, in each interval you can walk a maximum of 5 dogs. Then you can apply the following rule of three: if in 1 interval you walk a maximum of 5 dogs, in 6 intervals how many dogs do you walk a maximum?
[tex]amounts of dogs=\frac{5 dogs*6 intervals}{1 interval}[/tex]
amount of dogs= 30 dogs
The most amount of dogs that you can walk in a given day is 30 dogs.
How much is it | -7.9|?
Plllzzzzzz help mark you brainliest
Answer:
7.9
Step-by-step explanation:
When a number (or multiple numbers) is placed between two lines like this | |, that is the absolute value grouping symbol. Absolute value is the distance between the grouped number(s) and another defined number. In this case there are no other given numbers so 0 is assumed.
Now, say a friend is driving to your house and you call them to ask how far away they are from arriving (in distance), and they say "Around negative 5 miles away." That doesn't make sense! Distance can never be negative, and because absolute value is the distance between a number and another, a number within that grouping symbol can never be negative if there is a solution. Therefore, |-7.9| would be 7.9, because -7.9 is that exact amount away from 0.
8th grade urgent math super easy please
Answer:
n> -6
Step-by-step explanation:
-35n -28< 182
+28 +28
______________
-35n < 210
n> -6
Which set of ordered pairs represents a function?
\{(-6, 5), (-1, -2), (-4, -6), (-9, 5)\}{(−6,5),(−1,−2),(−4,−6),(−9,5)}
\{(-4, -4), (-4, 8), (-7, 1), (9, 7)\}{(−4,−4),(−4,8),(−7,1),(9,7)}
\{(-3, 4), (6, 1), (-8, -8), (-8, -5)\}{(−3,4),(6,1),(−8,−8),(−8,−5)}
\{(7, 9), (0, 4), (-2, 1), (7, 1)\}{(7,9),(0,4),(−2,1),(7,1)}
You are a contractor and charge $45 for a site visit plus an additional $24 per hour for each hour you spend working at the site. Write and solve an equation to determine how many total hours you have to work to earn $117 working at two separate work sites. Write an equation to describe the situation. Use h to represent the number of hours.
Please help asap and thanksss
Answer:
y = mx + b
where,
y = earning
m = slope or earning per hour = $24
x = total number of hours
b = y intercept or initial earning upon visit = $45
Hence,
y = 24x + 45
Since we are working at two separate work sites, therefore each site we must earn 810/2 = 405
So when y = 405:
405 = 24x + 45
x = 15 hours
So you must work 15 hours at each site.
Step-by-step explanation:
Answer:
7.56 hours.
Step-by-step explanation:
So my equation will be:
$45 + $24h
If we need to find out how many hours you have to work in order to earn $117 working at two separate work sites, the equation would look like this:
45 + 25h ÷ 2 = 117.
First we need to multiply both sides of th equation by 2.
[tex]\frac{2\left(45+25h\right)}{2}=117\cdot \:2[/tex]
Then, I had to simplify.
[tex]5+25h=234[/tex]
After simplifying, it was about time to subtract 45 from both sides of the equation.
[tex]45+25h-45=234-45[/tex]
I had to simplify again, then divide both sides by 25.
[tex]25h=189[/tex]
[tex]\frac{25h}{25}=\frac{189}{25}[/tex]
Again, I have to simplify for a final time to get the answer of..
[tex]h=\frac{189}{25}[/tex]
In decimal form, thats equal to 7.56 hours.
h = 7.56.
i really need help i dont understand geometry please answer both
Answer:
see explanation
Step-by-step explanation:
Using the tangent ratio in the right triangle.
tan35° = [tex]\frac{opposite}{adjacent}[/tex] = [tex]\frac{opp}{100}[/tex] ( multiply both sides by 100 )
100 × tan35° = opp , that is
opp ≈ 100 × 0.7002 = 70.02
Thus height of tree = 70.02 + 5 = 75.02 ft
--------------------------------------------------------------------
Using the tangent ratio in the right triangle on the right.
tan40° = [tex]\frac{opposite}{adjacent}[/tex] = [tex]\frac{25.17}{rope}[/tex] ( multiply both sides by rope )
rope × tan40° = 25.17 ( divide both sides by tan40° )
rope = [tex]\frac{25.17}{tan40}[/tex] = [tex]\frac{25.17}{0.839}[/tex] = 30 ft
Using the figure on the left, what is the measure of
Answer:
c = 30°
d = 60°
Step-by-step explanation:
Angle ZWC is a 90° angle
Angle YWX is a 60° angle
add them together and you get 150°
180 - 150 = c = 30°
c + d + 90° = 180°
substitute
30° + d + 90° = 180°
combine like terms
120° + d = 180°
subtract 120° from both sides
d = 60°
hope this helps!!
Answer:
c is 30 and d is 60
Step-by-step explanation:
I did it for hw
What is -1 1/4 + 1/2
plz mark as brainliest
Answer:
-1 3/4
Step-by-step explanation:
Two students are having a party. They want to make treat bags for their guests. They want each bag to be identical with nothing leftover. They have 36 Silly Bandz and 72 pieces of Double Bubble to put in the bags. What is the greatest number of treat bags they can make? How many of each item will be in each treat bag?
Answer:
Two students can make maximum 36 treat bags.
Number of pieces of silly Bandz in each bag [tex]=1[/tex]
Number of pieces of Double Bubble in each bag [tex]=2[/tex]
Step-by-step explanation:
Number of pieces of silly Bandz = 36
Number of pieces of Double Bubble = 72
To find greatest number of treat bags that they can make, find H.C.F. of 36 and 72
[tex]36=(2^2)(3^2)\\72=(2^3)(3^2)[/tex]
[tex]H.C.F(36,72)=36[/tex]
So,
they can make maximum 36 treat bags.
Number of pieces of silly Bandz in each bag [tex]=\frac{36}{36}=1[/tex]
Number of pieces of Double Bubble in each bag [tex]=\frac{72}{36}=2[/tex]
Need help don't know what to do!
Answer:
1) 15x+10=130 (corresponding angles)
15x=120
x=120/15
x=8
2) 60+128+x=180 (angle to straight line)
188+x=180
x=180-188
x=-8
3) 12x+8=13x+2
12x-13x=2-8
-x=-6
x=6
4) 115+16x+1=180 (co interior angles)
116+16x=180
16x=180-116
16x=64
x=64/16
x=4
Check all that apply.
x2 - 4 = 0
A. X = 4
B. X = -2
C. x = 1
D. X = -4
E. X = 2
F. x = -1
Which of the following would be equivalent to
113
117
117
O 11. 114
115
011
9514 1404 393
Answer:
11·11^4
Step-by-step explanation:
The applicable rules of exponents are ...
(a^b)(a^c) = a^(b+c)
a = a^1
(a^b)/(a^c) = a^(b-c)
a^0 = 1 . . . . for any 'a' not 0
__
The given expression is ...
(11^8)/(11^3) = 11^(8-3) = 11^5
The offered choices are ...
(11^7)/(11^7) = 11^(7-7) = 11^0 = 1
11·11^4 = (11^1)(11^4) = 11^(1+4) = 11^5 . . . . matches the given expression
(11^0)/(11^5) = 11^(0-5) = 11^-5
11^0 = 1
which of the following is the number of zeros in the cube of 900
[tex] {900}^{3} [/tex]
would have 6 zeros
Erin can read to chapters of her book in 1.5 hours. If Erin's book has 33 chapters, predict how many hours it will take her to complete her book
pls help
Answer:
33/2= 16.5
16*1.5= 24.75 24 hrs 45 min
Step-by-step explanation:
It will take 24.75 hours of reading to finish 33 chapters of the book.
What is unitary method?The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.
Given is Erin can read two chapters of her book in 1.5 hours and Erin's book has 33 chapters.
Two chapters of book → 1.5 hours of reading
one chapter of book → (1.5/2) hours of reading
33 chapters of book will be completed in → (1.5/2 x 33) = 24.75 hrs
Therefore, it will take 24.75 hours of reading to finish 33 chapters of the book.
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I need to Know this Please.
Answer:
The last one is the answer
Hurry :(
The length of a rectangular door is 35 inches, and the width of the door is 12 inches.
What is the length of a diagonal of this door in inches?
Answer:
The answer is d=37 in
Step-by-step explanation:
Which amount is bigger? x^0, 1/x or x^-1, assuming that x > 1
Answer:
x^0
Step-by-step explanation:
1/x = x^-1
For x > 1, this fraction is less than 1, so will be smaller than x^0, which is 1.
x^0 is bigger
also for a test , due in a couple of hours .
Answer:
8 d)
Step-by-step explanation:
2x -10 = 3x +6 -4x +8
3x=24
x=8
Answer:
x = 8 (d)
Step-by-step explanation:
Expand
2x - 10 = 3x + 6 - 4x + 8
Collect like terms
2x - 3x + 4x = 6 + 8 + 10
3x = 24
Divide both sides by 3 to make x on its own
x = 8
the roaming sell phone company charge's 15.00 a month plus 0.20 per minute of airtime usage. if juanita uses x minutes of air time what is the equation that can be used to determine her monthly phone bill (c)?
Answer:
$63.00
Step-by-step explanation:
Since you have sales tax, you would do a 10% sales tax for 15 dollar
10/100 = x/15
Therefore you will calculate x and 100 divided by 15 which would be 6.6 repeated
You would round to the nearest tenth and get 6.6 then you would add 56.4 as in the tip+ month airtime usage and get 63 dollars.
A rectangle has width x + 2 and length 2x - 1 what is it’s perimeter
Answer:
P=6x+2
Step-by-step explanation:
P=2L+2w
P=2(2x-1)+2(x+2)
P=4x-2+2x+4 can i get brainliest please?
P=6x+2
What is an equation of the line that passes through the point
(−6,5) and is parallel to the line x−3y=21?
Step-by-step explanation:
Parallel lines have the same slope.
x -3y = 21
y = (21-x)/-3 ==== y = 1/3x -7
Substitute the values,
y = mx + c
5 = (1/3)(-6) + c
5 = -2 + c
c = 7
Thus, the equation is y = 1/3x + 7
An equation of the line that passes through the point (−6,5) and is parallel to the line x−3y=21 is y = 1/3x + 7.
What is a system of equations?A system of equations is two or more equations that can be solved to get a unique solution. the power of the equation must be in one degree.
We need to find an equation of the line that passes through the point (−6,5) and is parallel to the line x−3y=21.
Parallel lines have the same slope;
x -3y = 21
y = (21-x)/-3
y = 1/3x -7
Substitute the values;
y = mx + c
5 = (1/3)(-6) + c
5 = -2 + c
c = 7
Therefore, the equation is y = 1/3x + 7
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Addition and Subtraction of Rational
Numbers - Question 8
8
k fueleducation"
8
9
|
5
12
+=
3
12
Reduce the answer to lowest terms.
-2
-1
8
-1
12
12
Answer:
[tex]\frac{-1}{6}[/tex]
Step-by-step explanation:
[tex]-\frac{5}{12} + \frac{3}{12} = -\frac{2}{12}[/tex]
[tex]-\frac{2}{12} = -\frac{1}{6}[/tex]
which can also be written as:
[tex]\frac{-1}{6}[/tex]
5 is 1/2 of what number?
pls help!!
Answer:
10
Step-by-step explanation:
Because 5 + 5 is 10, so 1/2 of 10 + 1/2 of 10 = 10
todo esta en la foto Everything is in the picture
The water depth in a lake decreases at a rate of 2 inches per day because of evaporation. How much does the water depth change in 8 days? In 15 days? In 8 days, the water depth changes by inches. In 15 days, the water depth changes by inches.
Answer: In 8 days it will decrease by 16 inches and in 15 days the water depth changes by 30 inches.
Step-by-step explanation:
The water depth decreases at a rate of 2 inches per day so in this case if were to write it as an expression it will be -2x where x is the number of days.
We will have to set it equal the total amount that it has decreased which will be y.
y= -2x If x represent the number of days we will put in the days and solve for y.
y = -2(8)
y = -16 This means that in 8 days it will decrease by 16 inches.
y = -2(15)
y= -30 This also means that in 15 days the water depth changes by 30 inches.
