Answers
Answer:
It should be y = -x + r or y = r - x. To solve for y you would have to isolate y by removing all other variables from y's side of the equation.
Related Questions
A market research team thinks that their new ad campaign is better than their old one. They used to be able to sell to 50% of those who saw their ads. To test their thought, they will run a hypothesis test. They take a random sample of 100 potential buyers and find that they convinced 60 of these people to buy their product. The test will be run at a 1% significance level.
a. The test statistic is 2 and we conclude that the new ad campaign is not signficantly better.
b. The test statistic is 2 and we conclude that the new ad campaign is signficantly better.
c. The test stat is 2.236 and we conclude that the new ad campaign is not significantly better.
d. The test stat is 2.236 and we conclude that the new ad campaign is significantly better.
e. The test stat is 2.5 and we are left with a test that is inconclusive.
Answers
Answer:
a. The test statistic is 2 and we conclude that the new ad campaign is not signficantly better.
Step-by-step explanation:
They used to be able to sell to 50% of those who saw their ads. Test if the new campaign is better.
At the null hypothesis, we test is it is the same, that is, the proportion is the same.
[tex]H_0: p = 0.5[/tex]
At the alternate hypothesis, we test if it is significantly better, that is, the proportion is above 50%.
[tex]H_1: p > 0.5[/tex]
The test statistic is:
[tex]z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}[/tex]
In which X is the sample mean, [tex]\mu[/tex] is the value tested at the null hypothesis, [tex]\sigma[/tex] is the standard deviation and n is the size of the sample.
0.5 is tested at the null hypothesis:
This means that [tex]\mu = 0.5, \sigma = \sqrt{0.5*0.5} = 0.5[/tex]
They take a random sample of 100 potential buyers and find that they convinced 60 of these people to buy their product.
This means that [tex]n = 100, X = \frac{60}{100} = 0.6[/tex]
Test statistic:
[tex]z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}[/tex]
[tex]z = \frac{0.6 - 0.5}{\frac{0.5}{\sqrt{100}}}[/tex]
[tex]z = 2[/tex]
The test statistic is 2.
P-value of the test and decision:
The p-value of the test is the probability of finding a sample proportion above 0.6, which is 1 subtracted the by p-value of z = 2.
Looking at the z-table, z = 2 has a p-value of 0.9772.
1 - 0.9772 = 0.0228.
The p-value of the test is 0.0228 > 0.01, which means that we cannot conclude that the new ad campaign is signficantly better, so the correct answer is given by option A.
En 9 días, un grupo de trabajadores puede sembrar 72 hectáreas.
¿Cuál es su tasa en hectáreas por día?
Answers
Answer:
8 hectáreas por día
Step-by-step explanation:
72 hectares en 9 días por eso divides 72 por 9 para encontrar la repusta es 8
¡Espero que esta te ayudar! :)
(y sí, hablo un poco de español porque he aprendido desde el primer grado)
what is the value of a, if 5a-b-c=36 and b=c=1/2a
Answers
Answer:
a=36
Step-by-step explanation:
because look 0a=a
0a=36
a=36
{5,9,8,6,3,9,1,4,5,9,13}
Answers
Answer:
75
Step-by-step explanation:
hoped it helped !:)
Find the value of x in the figure:
PLEASE SHOW WORK:)))
WILL MARK BRAINLIEST TO CORRECT ANSWER.
Answers
Answer:
x = 4
Step-by-step explanation:
ΔAED ~ ΔACB
[∠DAE = ∠BAC ( common angle ), [tex]\frac{AE}{AC} = \frac{AD}{AB}[/tex] ( gives a ratio 1:2 ) ]
[tex]\frac{AE}{AC} = \frac{DE}{BC}[/tex]
Since AC = 2AE [ AC = AE + EC, But AE = EC, ∴ AC = AE + AE ]
[tex]\frac{AE}{2AE} = \frac{x + 1}{4x - 6}\\\\\frac{1}{2} = \frac{x + 1}{4x - 6}\\\\\\Cross - multiplying,\\\\4x - 6 = 2 *(x + 1)\\4x - 6 = 2x + 2\\4x - 2x = 2 + 6\\2x = 8\\x = 4[/tex]
What is the volume of the triangle prism? ( HELP PLEASE )
Answers
Answer:
270 km³
Step-by-step explanation:
the volume = ½×9×6×10 = 270 km³
It’s algebra 2 I have no idea help?
Answers
Answer:
outs dnc fungi obi fh hk of dk foo ox dj fk
Help plz:)))I’ll mark u Brainliest
Answers
Answer:
[tex]sin^{-1}(\frac{51}{53})\\=74.21[/tex]
≈74
Order the following units of a capacity families to greatest gallon paint cup quart
Answers
Answer:
7 yards
Step-by-step explanation:
What is the degree of the polynomial below?
7x^5+6x^3+ 4x + 2
A. 0
B. 3
C. 1
D. 5
Answers
Reason: It's the largest exponent
When a polynomial is written in standard form like this, the term with the largest exponent is written first, then the next largest and so on. So in cases like this, we simply need to look at the left-most term; however, this may not always be the case as your teacher could easily mix up the terms to make sure you're paying attention.
This is considered a quintic polynomial due to the degree of 5.
What is the volume of the rectangular prism?
Answers
Answer:
54 in³
Step-by-step explanation:
9×3×2 = 54 in³
_______
Does anyone understand this?
Answers
Answer: understand what
Step-by-step explanation:
Answer:
where qurstion
Step-by-step explanation:
??????????????
Helppppppppppppppp meeeeeeeeee
Answers
Answer: the forth one
Step-by-step explanation:
If w = 7a + 4b, which of the following equations is solved for a?
Answers
Answer: a= w - 4b/ 7
Step-by-step explanation:
Please help ;-;im stuck
Answers
Answer:
999
Step-by-step explanation:
223 → 200 + 20 + 3
374 → 300 + 70 + 4
402 → 400 + 0 + 2
900 + 90 + 9
standard form = 999
An equation is shown below:
8x + 2(x – 7) = 7x + 3x – 14
Part A: Solve the equation and write the number of solutions. Show all the steps. (6 points)
Part B: Name one property you used to solve this equation. (4 points)
Answers
Use pemdas when solving these problems
4. In a mixture of 45 litters, the ratio of sugar solution to salt solution is 1:2. What is the
amount of sugar solution to be added if the ratio has to be 2:1?
Answers
Answer:
15
Step-by-step explanation:
The amountt of sugar and salt would be x and 2x
x+2x=45x
so sugar solution =15 and salt solution =30
ratio =2:1 then sugar =30 salt =15
The amount of sugar solution to be added =30-15=15
5. The Toy Car Company sells toy cars for $8.00
per car and charges $3.50 for shipping.
a.
Answers
Answer:11.50
Step-by-step explanation:
Write an equation for a translation of the parent function y = |x| to translate it 7 units left.
A. y = |x| + 7
B. y = |x + 7|
C. y = |x − 7|
D. y = |x| − 7
Answers
9514 1404 393
Answer:
B. y = |x +7|
Step-by-step explanation:
The translations represented by the answer choices are ...
A. up 7 units
B. left 7 units . . . . the choice we want
C. right 7 units
D. down 7 units
___
In general, the effects of adding things to x and y are summarized by ...
y = f(x -a) +b . . . . . . . . translation right 'a' units, up 'b' units
Translations left or down are accomplished by using negative values for 'a' and/or 'b.
__
We want translation 7 units left, so a=-7 and b=0
y = |x| ⇒ y = |x -(-7))| or y = |x+7|
The F-ratio is determined by dividing _________by ___________. Group of answer choices within-groups variance; between-groups variance between-groups variance; within-groups variance systematic variance due to treatment; error variance error variance; systematic variance due to treatment
Answers
Answer:
between-groups variance;
within-groups variance
Step-by-step explanation:
The F-ratio is determined by dividing between-groups variance by within-groups variance
Reason -
The F ratio is the ratio of two mean square values.
solve for ,"a" in 3(a+2)/4 +3/2=0
Answers
Answer:
a=-4
Step-by-step explanation:
3(a+2)=-6
3a+6-6=-6-6
3a/3=-12/3
The operation is defined on the set R of real numbers by ab=ab+a.
Determine whether or not the operation is associative.
Please I need help.
Answers
Answer:
ab=ab+a
We need to check the following:
(ab)c=a(bc) or not
LHS
(ab)c=(ab+a)c
=(ab+a)c+(ab+a)
=abc+ac+ab+a
RHS
a(bc)=a(bc+b)
=a(bc+b)+a
=abc+ab+a
as LHS ≠ RHS, the operation is not associative
Step-by-step explanation:
Solve the problem. An experiment consists of randomly choosing a number between 1 and 10. Let E be the event that the number chosen is even. Assuming that each of the numbers between 1 and 10 is equally likely to be chosen, find P(E).
A) .5
B) .8
C) .1
D) .2
Answers
Answer:
A.
Step-by-step explanation:
1. the required probablilty is: P=(number_of_even_numbers)/(number_of_all_the_numbers);
2. according the condition the number of all the numbers is 10; the number of even numbers is 5 (they are: 2; 4; 6; 8; 10), then
3. P=5/10=0.5 (option 'A').
What is the slope of a line that runs through (-2,4) and (3,7)
Answers
Answer: m=0.6
Step-by-step explanation:
Use the m= y2-y1/x2-x1 formula to calculate slope.
7-4=3
Divided by
3-(-2)=5
3/5= 3/5 or 0.6
Answer:
slope = 3/5
Step-by-step explanation:
slope = rise/run
---------------------------
y rises from 4 to 7 = 3
x runs from -2 to 3 = 5
slope = 3/5
Plzz help me well mark brainliest if correct,.......???!!!
Answers
Answer:
im pretty sure is 3 but it says 2 but just pick 3
Answer:
1
Step-by-step explanation:
Depending on what number has the most Xs above it, that will be the answer. The question is slanted so, it's hard to tell between 1 and 3, but, if I had to guess, then 1.
Find the circumference of the object 6 Cm
Answers
Answer:
37.7 cm
Step-by-step explanation:
C = 2πr
2 · π · 6
≈ 37.7
this is going to be hard ok here i go what is 5678,00000 x 4321,0000000
Answers
Answer: 2.45346638e+19
Step-by-step explanation:
Fill in the missing monomials: 100x^2= (____)^2
ITS NOT 100
Answers
Answer:
(10x)^2
Step-by-step explanation:
What is the angle of elevation to a building 1300m away that is 250m high?
•79.1°
•78.9°
•11.1°
•10.9°
Answers
Answer:
∅ = 10.9º
Step-by-step explanation:
tan = opp/adj = 250/1300
∅ = arctan250/1300
use calculator
∅ = 10.9º
Which of the following sets of data is bimodal?
A {2,3,4,4,5,6,7,7,8}
B {2,2,3,3,4,4,5,5,6,6}
C {2,3,4,4,4,5,6,7,8}
D {2,2,3,3,4,4,5,6,7,8}
Answers
Answer:
a. po
sana po maka tulong