The dependent variable in a study, also known as the response variable, is affected by the independent variables.
What is a variable?
A variable is a sign and placeholder for any mathematical object (from the Latin variabilis, "changeable") in mathematics. A variable can, for example, represent a number, a vector, a matrix, a function, the argument of a function, a set, or a set's component.
Numerous issues are resolved in a single computation by using variables in algebraic calculations as if they were explicit integers. For instance, by exchanging the variables that represent them in the quadratic formula with the numerical values of the coefficients in any given quadratic equation, the quadratic formula may solve any quadratic equation. A variable in mathematical logic is either a symbol for an undefined term in the theory or an undefined phrase itself (a meta-variable).
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is -2/7 rational or irrational
Answer:
rational
Step-by-step explanation:
Rational numbers are able to be denoted as a ratio. -2/7 is a ratio, so it is rational.
Find an equation of the plane through(1,1,1) that contains the linere presented by the parametric equationsx= 2t;y= 1t;z= 2 3t:
To calculate the equation of the plane from the given information which is as follows:
The plane contains the line that is [tex]x = 2t; y = 1t; z =2-3t[/tex] which are passing through [tex](1,1,1).[/tex]
The standard formula for the equation of the plane is: [tex]a(x-x(0))+b(y-y(0))+c(z-z(0))=0.[/tex]
And the equation of the line is: [tex]\frac{(x-x(0))}{a} = \frac{(y-y(0))}{b} = \frac{(z-z(0))}{c}[/tex]
As per the given data, the value of [tex]a = b = c = 1.[/tex]
And when[tex]t=0: x=0;y=0;z=2[/tex]
Now, the final expression can be rewritten as: [tex]x=y=z-2[/tex]
And the equation of the line can be rewritten as:
[tex](x)+(y)+(z-2)=0.[/tex]
[tex]x+y+z-2 = 0[/tex]
What is the equation of the line?
To represent the set of points in an algebraic form is known as the equation of line. The set of points represent lines in the coordinate system. The parameters can be calculated and those parameters are slope and y-intercept.
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an online shoe brand ran two conversion lift studies. test 1 resulted in the control group showing a 20% conversion rate while the test group showed a 25% conversion rate. the results were significant at 60%. test 2 resulted in a 20% conversion rate in the control group while the test group showed a 30% conversion rate. these results were 95% significant.
To boost their incremental ROAS, the marketing team plans to increase reach as much as feasible.
What is market science?
Using data to support decision-making objectively is central to marketing as a science. Knowing how to analyze data and spotting typical mistakes or misrepresentations in interpretations are key.
The analyst conclude -
Test 2's results were more trustworthy than Test 1's because Test 2 demonstrated a 10% difference in lift between the test and control groups and was conducted with a higher confidence level.When conducting randomized control trials utilizing their ads, an e-commerce company wants to know how reach affects the incremental ROAS outcomes.To compare reach and ROAS for each campaign ran in the previous year, the company compiles data on past campaign performance and builds a scatterplot. Over the past year, they have made numerous changes to their marketing strategy, including changes to targeting, bidding tactics, and optimization measures. To boost their incremental ROAS, the marketing team plans to increase reach as much as feasible.Learn ore about market science
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If n+ 2 is divisible by 2 then which statement is always True?
A- n is an even number
B - n is an odd number
C- n is a prime number
D- b is equal to n + 1.
Answer:
the right answer is A
Step-by-step explanation:
the even number can be always divided by 1,2 and themselves
Analizeaza urmatoarele verbe mentionand persoana si numarul! a plecat,vei ajunge,sa mearga
Answer: I dont understand what your saying
Step-by-step explanation:
Are you speaking a diffrent language
Answer:
in English: let,will,arrive,let,go
in Romanian: lasa, va, sosi, lasa, pleca
Step-by-step explanation:
I think the language is Romanian
I’d really appreciate any kind of help :)
Answer: it is B
Step-by-step explanation: i would love to help
If one book is 2.5 inches wide and another is 1.754 inches wide, how much wider is the first?
4. Technology required. Priya starts with $50 in her bank account. She then deposits $20
each week for 12 weeks.
a. Write an equation that represents the relationship between the dollar amount
in her bank account and the number of weeks of saving.
d=50+20w
b. Graph your equation using graphing technology. Mark the point on the graph
that represents the amount after 3 weeks.
The equation [tex]d=50+20w[/tex] represents the relationship between dollar amount in her bank account and the number of weeks of savings.
The definition of an equation is a formula that states that two formulas are equal. For example, 3x + 5 = 14 is an equation where 3x + 5 and 14 are two terms separated by an equal sign. The most basic and simple algebraic equations consist of one or more variables in mathematics. In mathematics, a graph can be defined as a graphical representation or chart that systematically represents data or values. A point on a graph often represents a relationship between two or more things.
(a) It is given that amount in bank account is $50 , amount deposited by Priya is $20 and time period is 12 weeks .
Let " d " be the dollar and " w " be the weeks
Multiply the number of weeks w by 20 to get the total savings and add up how much money she had in the account initially.
Money deposit by Priya in 1 week = $20
Money deposit by Priya in 1 week = [tex]20\times w[/tex]
Therefore , the equation will be [tex]d=50+20w[/tex]
(b) Graph of given equation is given below :
Let " w " represents the x - axis and " d " represents the y - axis
For 1 week , amount will be [tex]d=50+20=60[/tex]
For 2 week , amount will be [tex]d=50+20(2)=90[/tex]
For 3 week , amount will be [tex]d=50+20(3) = 110[/tex]
And so on..
From the graph ,the point which represents the amount after 3 weeks is
(3 , 110 )
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Nine less then a number is four
Answer: 13 (simplified)
Step-by-step explanation: 9 + 4= 13, minus 9 equals 4
Answer: Question: x-9=4
Step-by-step explanation: X is 13
I dont know why i dont get it
Answer:
12 miles+14 miles+18 miles+12 miles+15 miles= 71 miles.
Step-by-step explanation:
Give the full question next time alright?
i need help if you help me it will be much helpfull thank you
Answer:
Step-by-step explanation:
Answer is D
509
-106
403
4 hundred and 3 ones
Five ounces of pretzels are put into each bag. How many bags can be made from 20 pounds of pretzels?
Each pound has 16 ounces in it.
20 pounds would be 16 x 20 ounces = 320 ounces.
If each bag has 5 ounces in it, that's 320 / 5 bags = 64 bags.
Pls give brainliest.
A college baseball stadium has 6,925 seats. During 12 games this season, the stadium sells out and fills every seat.
How many tickets were sold for those 12 games?
The number of tickets sold during the 12 games is 83,100 tickets
How to calculate the number of tickets sold ?The college stadium has 6,925 seats for the baseball games this season.
During the entire 12 baseball games, al the seats were filled up and tickets were sold out.
Therefore the number of tickets sold in the entire 12 games can be calculated by multiplying 6,925 by 12
= 6925 × 12
= 83,100
Hence 83,100 tickets were sold in the entire 12 games
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How do you divide 8 out of 5
Answer:
if you mean 8 divided by 5 then use long division which will result in 1 with a remainder or 3 or 1.6
Answer:
8/5=1.6
Step-by-step explanation:
There's no step by step for explaining this answer. Or nothing that I can think of
Marcy walked 3 7/10 miles on Saturday and Sunday she walked 0.25 more miles than she did on Saturday how many total miles did she walk over the weekend. Pls.
Help
It’s math
B
Over the weekend she walked a total distance of (4 + 5/8) miles
How many total miles did she walk over the weekend?
We know that on Saturday she walked a total of (3 + 7/10) miles (so we need to work with mixed numbers), and on Sunday she walked 0.25 of that distance.
Then the distance that she walked on Sunday is:
D = 0.25*(3 + 7/10) miles
We can rewrite: 0.25 = 1/4
replacing that:
D = (1/4)*(3 + 7/10) mi = (3/4 + 7/40) mi
= (30/40 + 7/40)mi = (37/40)mi
Then the total distance that she walked over the weekend is:
d = (3 + 7/10) mi + (37/40)mi
= (120/40 + 28/40) mi + (37/40) mi
= (185/40)mi = (160/40 + 25/40) mi = (4 + 5/8) mi
Over the weekend she walked a total distance of (4 + 5/8) miles
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40, 24, 72/5
Find the 10th term
Answer:
0.24186
Step-by-step explanation:
40 x (3/5) = 24
24 x (3/5) = 72/5 or 14.4
Keep multiplying 3/5 or 0.6
= 0.24186
PLS HELP 50 PTS AND BRAINLY
Answer: Multiply both the numerator and denominator of each fraction by the number that makes its denominator equal the LCD. This is basically multiplying each fraction by 1.
(13×55)+(25×33)=?
Complete the multiplication and the equation becomes
515+615=?
The two fractions now have like denominators so you can add the numerators.
Then:
5+615=11/15
This fraction cannot be reduced.
Therefore:
13+25=11/15
Step-by-step explanation: hope this helps!!!!
Answer:The answer would be 11/15 mile
Step-by-step explanation:
Paper weighs 4.9 kg for every 500 sheets, how much will 700 sheets weigh?
Answer:
6.86 kg
Step-by-step explanation:
Here ,apparently the weight and number of sheets are proportional.
Let m be the weight of 700 sheets.
[tex]\text{} \begin{matrix}500\ \text{sheets} \text{} \longrightarrow 4.9\ \text{kg} \\ 700\ \text{sheets} \text{} \longrightarrow m\ \text{kg} \end{matrix}[/tex]
coefficient of proportionality :
[tex]\text{} \text{The coefficient of proportionality is equal to :} \ \frac{700}{500} =\frac{7}{5}[/tex]
Then
[tex]\frac{m}{4.9} = \frac{7}{5}[/tex]
Then
[tex]m = \frac{7}{5} \times 4.9 =6.86 \ \text{kg}[/tex]
____ is the vertical distance between two or more lines or surfaces (part features) that are in horizontal planes.
Height is the vertical distance between two or more lines or surfaces (part features) that are in horizontal planes.
What are horizontal planes?Horizontal plane can as well be described as the plane or surface that can be seen as the one that is parallel to the surface of the earth, , it should be noted that this plane is usually at the at an angle of zero degree hence horizontal plane.
Therefore, the plane is perpendicular to the horizontal plane , hence Height is the vertical distance between two or more lines or surfaces (part features) that are in horizontal planes.
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4x - 2x + x - 6 = 15
solve for x and show steps!
Answer:
x = 7
Step-by-step explanation:
Let's solve the problem,
→ 4x - 2x + x - 6 = 15
→ 3x - 6 = 15
→ 3x = 15 + 6
→ x = 21/3
→ [ x = 7 ]
Thus, the value of x is 7.
Write an equation of the line and interpret the slope and y intercept (Will award brainiest answer)
Answer:
y=mx+by=mx+bm=slope(x,y)=a point on the lineb=the y value of the y-interceptm=slope(x,y)=a point on the lineb=the y value of the y-intercept
Step-by-step explanation:
Bro please help ima fail
In the picture there are 10 question.
1. Identify the 1st 10 perfect squares?
The 1st 10 perfect squares are 1,4,9,16,25,36,49,64,81 and 100.
[tex]1^{2} =1\\2^{2} =4\\3^{2} =9\\4^{2} =16\\5^{2} =25\\6^{2} =36\\7^{2} =49\\8^{2} =64\\9^{2} =81\\10^{2} =100\\[/tex]
2. What does it mean for a number to a perfect square? provide an example.
By squaring a whole number or an integer, one can create perfect squares. Let's examine an illustration to get the idea behind perfect squares. We can use a set of four and a second set of six marbles for this. Let's set the marbles in order.
See the figure(1).
With four marbles, we can create a square with two rows and two marbles in each row. We can create a rectangle with 6 marbles that has 2 rows with 3 marbles in each row. It signifies that 4 = 2[tex]\times[/tex]2 and 6 = 3[tex]\times[/tex]2 mathematically. Let's concentrate just on the square-shaped numerals. Here, 4 = 2 × 2 = [tex]2^{2}[/tex].
Square A is smaller then Square B. Square B is smaller then Square C.
The 3 Square side length are3,4.2 and[tex]5\frac{1}{2}[/tex].
complete the equation each of the square shown.
3. Square A=Area=[tex]3^{2}[/tex]=9
4. Square B= Area=[tex]4.2^{2}[/tex]=17.64
5. Square C=Area= [tex]\frac{5}{2} =\frac{25}{4}[/tex]
Find the length of the side of the square for each area is given
6.81 square inches
Area=81=[tex]s^{2}[/tex]
s=9
7. [tex]\frac{4}{25} cm[/tex]
area=[tex]\frac{4}{25} cm[/tex]=[tex]s^{2}[/tex]
s=[tex]\frac{2}{5}[/tex]
8.0.49 Square unit
area=0.49=[tex]s^{2}[/tex]
s=0.7
The graph represent the equation [tex]y=x^{2}[/tex].
9.complete the table of values to find corresponding y-values.
if x =-1.4
Substituting in the equation [tex]y=x^{2}[/tex]
Then y=[tex]-1.4^{2}[/tex]
y=1.96.
Therefore, (x,y)=(-1.4,1.96)
if x =-1
Substituting in the equation [tex]y=x^{2}[/tex]
Then y=[tex]-1^{2}[/tex]
y=1.
Therefore, (x,y)=(-1,1)
if x =0
Substituting in the equation [tex]y=x^{2}[/tex]
Then y=[tex]0^{2}[/tex]
y=0.
Therefore, (x,y)=(0,0)
if x =[tex]\frac{2}{5}[/tex]
Substituting in the equation [tex]y=x^{2}[/tex]
Then y=[tex](\frac{2}{5}) ^{2}[/tex]
y=[tex]\frac{4}{25}[/tex].
Therefore, (x,y)=([tex]\frac{2}{5}[/tex],[tex]\frac{4}{25}[/tex])
if x =2
Substituting in the equation [tex]y=x^{2}[/tex]
Then y=[tex]2^{2}[/tex]
y=4.
Therefore, (x,y)=(2,4)
10. why the graph of equation [tex]y=x^{2}[/tex] is above x-axis.
Because the [tex]y=x^{2}\\[/tex] the x values are always positive because x as a square. So, the equation is always on x- axis or above x-axis.
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What is the missing value of 2/5 equals how many 15th
The number of fifteenths which are contained in 2/5 as required to be evaluated in the task content is; 6.
What is the number of fifteenths which are present in 2/5 as required in the task content?It follows from the task content that the number of fifteenths which are contained in 2/5 as required is to be computed.
Given;
2/5.
To find;
How many fifteenths?
Hence, the number of fifteenths in 2/5 as required can be evaluated as follows;
2/5 ÷ 1/15
= 2/5 × 15/1
Multiply the numerators and denominators accordingly;
= 30/5
= 6.
Ultimately, the number of fifteenths in 2/5 is; 6.
Therefore, The number of fifteenths which are contained in 2/5 as required to be evaluated in the task content is; 6.
This concept follows from the division of fractions as in arithmetic operations.
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Please help it would be very much helpul
x = 12.
Perpendicular lines are lines that intersect at a 90-degree angle. So, for example, line ST is perpendicular to line CD. So line ST is perpendicular to line CD.
Perpendicular lines always intersect each other, however, all intersecting lines are not always perpendicular to each other. The two main properties of perpendicular lines are: Perpendicular lines always meet or intersect each other. The angle between any two perpendicular lines is always equal to 90.
Given that
line m and n are perpendiculars
then angle ∠a = ∠b
then
5x + 20 = 7x -4
7x -5x = 20 + 4
2x = 24
x = 24/ 2
x = 12.
Hence the value of x = 12
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the perimeter of a one rectangular deck is 78 feet. the length of deck can be represented as (2x 3), and its width can be represented as (3x-4). the perimeter of a second rectangular deck is 2 times the perimeter of the first deck with a length of (4x 6) and a width of (6x -1). what is the value of x of the first rectangular deck?
The value of x of the first rectangular deck is 8.
For given question,
The perimeter of a one rectangular deck is 78 feet.
The length of the first rectangular deck is represented as (2x + 3), and its width is represented as (3x-4).
Similarly, the perimeter of a second rectangular deck is 2 times the perimeter of the first deck with a length of (4x + 6) and a width of (6x -1).
We need to find the value of x of the first rectangular deck.
Let P1 be the perimeter of the first rectangular deck.
⇒ P1 = 2 × (length + width)
⇒ 78 = 2 × [(2x + 3) + (3x - 4)]
⇒ 39 = (2x + 3x + 3 - 4)
⇒ 39 = 5x - 1
⇒ 40 = 5x
⇒ x = 40/5
⇒ x = 8
Therefore, the value of x of the first rectangular deck is 8.
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Find the range of the data set: 10,18, 21, 28, 12, 20
Answer: 18
Step-by-step explanation:
Answer:
18
Step-by-step explanation:
The range is the greatest number minus the number with the least value.
28 - 10 = 18
Simplify
(7y+4)(8y+2)
Answer:
56y^2+46y+8
Explanation:
Hope this helps you.
If lines a and b are perpendicular to line c, what word best describes how lines a and b relate to each other?
A.intersecting
B. Parallel
C. Perpendicular
D. Skew
answer:
C. Perpendicular
explanation:
perpendicular is defined as intersecting to create 90 degree angles on all four created angles.
if both lines a and b are perpendicular to line c, then they must be parallel.
Evaluate v-w for the given values. v = -14; w = 7
Answer:
I believe the answer would be :
-14 - 7 = -21
Answer = -21
At his last track meet, kenneth ran the 400-meter dash in 54 seconds. his friend madelyn bet him that he couldn't run a whole kilometer at that pace, but kenneth is determined to prove her wrong. how many minutes would he have to run at this pace to win the bet? write your answer as a whole number, decimal, or simplified fraction. do not round.
Kenneth will have to run 2.25 minutes at the same speed to win the bet.
What is Speed?Speed is the rate of movement of an object along a path in time.
=> [tex]Speed =\frac{Distance}{Time}[/tex]
Now,
Given:
Kenneth ran 400m in 54s.To find: Number of minutes to maintain the speed to win the bet.
Finding:
According to the information given in the question,
The speed in minutes = [tex]\frac{400}{54}(60)[/tex] = 444.44 meter/min
Since Kenneth is determined to run at this speed for 1 km, he will have to maintain it for:
=> [tex]\frac{1000}{444.44}[/tex] = 2.25 minutes (As [tex]Speed =\frac{Distance}{Time}[/tex], => [tex]Time=\frac{Distance}{Speed}[/tex])
Hence, Kenneth will have to run 2.25 minutes at the same speed to win the bet.
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