All you have to do is solve this by using substitution or elimination. or in this case, because we don’t have a second equation, we would solve the x-intercept and y-intercept
X=-12
Y=-9
Publishers of a magazine wish to determine what proportion of the magazine's 50,000 subscribers are pleased with their subscription. The publishers intend to mail a survey to 1,000 subscribers randomly selected from those who have received the magazine for 5 years or more. This introduces selection bias, since long-subscribing customers are more likely to be pleased with their subscription. Which of the following would best eliminate selection bias?
a. Mail surveys to 2,000 subscribers randomly selected from those who have received the magazine for 5 years or more.
b. Mail surveys to 1,000 subscribers randomly selected from those who have received the magazine for 1 year or less.
c. Mail surveys to 1,000 subscribers randomly selected from all subscribers.
d. Mail surveys to 1,000 subscribers randomly selected from those who have received the magazine for 5 years or more and 1,000 subscribers randomly selected from those who have received the magazine for 1 year or less.
e. Mail surveys to 500 subscribers randomly selected from a group who have received a free six-month subscription within the past year.
Answer:
d. Mail surveys to 1,000 subscribers randomly selected from those who have received the magazine for 5 years or more and 1,000 subscribers randomly selected from those who have received the magazine for 1 year or less.
Step-by-step explanation:
In the case of the publishers of the magazine, in order to avoid bias, they would adopt he approach mentioned in the above statement. That is, to consider both those that have recieved the magazine for the past five years or more as well as those who have recieve the magazine for the past one year or less.
This would help them to have a balanced outcome in the survey because all, would attend the the survey with a free mindset rather than baised mindset.
Which shows the number 94.076 written out in words?
Respond quick
Answer:
D) ninety-four and seventy-six thousandths
Step-by-step explanation:
50 POINTS !!
PLEASE HELP !! ILL GIVE BRAINLIEST TO THE RIGHT ANSWERS.
Answer:
c = 9
Step-by-step explanation:
8.1^2 + 2.9^2 = 74.02
square root 74.02 is 8.60 round up and its 9
the slope to (9, -10), (0, 8) with the work shown please.
Answer:
-2
Step-by-step explanation:
To find the slope, subtract y1 - y2, then divide by x1-x2
The y numbers in this set is -10 & 8
The x numbers in this set is 9 & 0
-10-8= -18
9-0 = 9
-18/9 = -2
The slope would be -2
Find the inverse of the function.
Y = x + 8
Answer:
Im almost certain its x-8=y
Step-by-step explanation:
Answer:
[tex]f - 1(x) = x + 8[/tex]
i hope it helps
Find value of x in a hexagon with 2x,3x and x
Answer:
x = 120°
Step-by-step explanation:
Given the following data;
Angles = 2x, 3x and x
We know that a hexagon has 6 sides and the sum of it's interior angles is equal to 720°
2x + 3x + x = 720
6x = 720
x = 720/6
x = 120°
Check:
2x = 2*120 = 240°
3x = 3*120 = 360°
x = 120°
240 + 360 + 120 = 720°
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Answer:
The mean score would decrease more than the median score
Step-by-step explanation:
Model -2/4 + 3/4 on the number line
The model lies between 0 and 1 on the number line.We can find by dividing number and then add both of number.
How do we represent number on a number line?The real number line is a horizontal line with arrows on both sides. It consists of the origin “0”. All the positive numbers are represented on the right side of the origin and all the negative numbers are represented on the left side of the origin, with a definite scale.
What is a Number Line Model?A number line model is a representation of numbers plotted on an infinite line that extends at both ends.It is a visual representation of numbers on a straight line. This line is used to compare numbers that are placed at equal intervals on an infinite line that extends on both sides horizontally or vertically.
Now we find
-2/4 =-0.5
3/4= 0.75
0.75- 0.5=0.25
which is lies between 0 and 1 on the number line.
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what is the surface area of this rectangular pyramid
Answer:
Hello! answer: 75
Step-by-step explanation:
5 × 5 = 25 for a square
for a triangle 5 × 5 = 25 25 ÷ 2 = 12.5 12.5 × 4 = 50 25 + 50 = 75 therefore the total area is 75 HOPE THAT HELPS!
The amount of gas that a helicopter uses is directly proportional to the number of hours
spent flying. The helicopter flies for 2 hours and uses 24 gallons of fuel
. Find the number of
gallons of fuel that the helicopter uses to fly for 5 hours,
Answer:
60 gallons
Step-by-step explanation:
We can create a ratio for this. If we consider 2 as the 1 in the ratio, we have a ratio of 1 : 2.5. Therefore, we just need to multiply 24 by 2.5, which equals 60.
Which is better 4:3 odds or 3:4 odds? Why?
Answer:
no problem?
Step-by-step explanation:
why is the slope between any two points on a straight line always the same?
Answer:
because it never changes.
What is the vertext of the following parabola: x^2 - y + 6x + 8 = 0
Answer: y=(x+3)2−17
Step-by-step explanation:
3a²b and 3ab² are like terms true or false
Step-by-step explanation:
false.
3a²b≠3ab².
If a is 3 and b is3 it is not equal
sellus
Find the expected value of the winnings
from a game that has the following
payout probability distribution:
Payout ($)| 0 2 4 8 10
Probability 0.35 0.2 0.1 0.2 0.15
Round in the nearest hundredth
Answer:
3.9
Step-by-step explanation:
Given the data:
Payout ($) (x) : 0 2 4 8 10
Probability p(x) : 0.35 0.2 0.1 0.2 0.15
The expected winning ; E(X) = Σ(x * p(x))
Σ(x * p(x)) = (0*0.35)+(2*0.2)+(4*0.1)+(8*0.2)+(10*0.15)
= 0 + 0.4 + 0.4 + 1.6 + 1.5
= 3.9
need some help please
Answer:
what help I will help yoy
you are wearing a pair of cargo pants with six pockets. you've put $10 in one of the pockets, but you cannot remember which one. after checking two pockets without success, what is the probability that the money will be in the next pocket you check?
A. 1/8
B. 1/6
C. 3/5
D. 1/4
Answer:
1/4
Step-by-step explanation:
So lets go over our information
We know there are 6 pocket
1 of them has 10 dollars
2 have been checked
There are 4 more to check
There is a 1 in something chance of the next pocket having 10 dollars.
The key here is, 2 have already been checked.
This means there is a 1/4 chance of the next pocket having 10 dollars.
Answer:
B(1/4)
Hope this helps!
Which rules define the function graphed below? Edge
Answer:
B
Step-by-step explanation:
In the first part for every x, y is the value of x plus 2, while in the second part for every x. y is 5
speed getsa u brainle
Answer:
ye?
Step-by-step explanation:
Construct and interpret a 95% confidence interval to estimate the proportion of the earth that is water. Show all work. Make sure to check your conditions and state your conclusion.
1.) Randomly selected
2.) Less than 10% of population
3.) 50 (0.68)
50 (0.32)
the answer would be 2
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feams.microsoft.com/_/pdf/viewer/teams/https:-21-2Fmiamidadoschools sharepoint.com - 2Fsites - 2F Section 720131254908-21 Shared20Documents-2General 21 g
2. Which of the following tables represent functions?
A. (5,0)
B. (-2,2.4)
C. (8,5)
D. (10,12)
E. (0,4)
Input
1
Output
4
2
3
3
z
Input Output
1
2 2
3
3
3
4
4
1
1
11
7. Joe was given $20 for his
$10 per week from his =
to represent this situati
Input Output
-1 2
0 2
1 3
5 3
Input Output
-4 3
0
2
2. 12
4
7
O A. S(w) = 10w - 20
O B. S(w) = 10w + 20
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Answer:
D
Step-by-step explanation:
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Answer:
Step-by-step explanation:
A.
C.
Answer to this question
Answer:
555.555556 WHERE 1 YARD IS EQUAL O 30 FOOT DIVIDE IT BY 30 ANS IS
Step-by-step explanation: 555.5555556/30 = 18.5185 IS THE ANSWERE IN YARDS OF 1500 FT3
HAVE A NICE DAY
WILL GIVE BRAINLST :)
4. Find the sum of the first 21 terms in a series where a = 20 and t21= 400.
5. Find the sum of the first 100 terms in a series where a = 0 and t100= 99.
6. Find the sum of the first 50 terms in a series where a = 4 and t50= 196.
7. Find the sum of the first 100 terms in a series where a = 0 and t100= 99.
8. Find the sum of the first 10 terms in an arithmetic series where t7= 7 and t10= 13.
9. Find the sum of the first 10 terms in an arithmetic series where t5= 15 and t10= 45.
10. Find the sum of the first 30 positive multiples of 5.
The first 100 terms of a series add up to 4950, and the first 21 terms of a series where a = 20 and t21 = 400 add up to 4410
what is arithmetic progression ?An arithmetic progression is when the difference between each phrase that follows another in a sequence is always the same. For instance, the sequence 5, 7, 9, 11, 13, and 15 is an example of an arithmetic progression with a 2 tolerance. A progression having a set tolerance between any two consecutive numbers is known as a "arithmetic progression" (A.P.). Two alternative types of mathematical progression exist: finite-length mathematical series A series that has a limited number of terms is a finite geometric progression. One may calculate the early, late, tolerance, and number of terms in a series using the terms in the series.
given
1) n6 = 6 where a = 5 and d = 5 = 105
2)n6 =6 where a = 9 and d = 12 = 234
3) n5= 5 where a = 5.7 and d = 1.4 = 42.5
4) a = 20 and t₂₁ = 400 ,
= 380
Therefore, Sum of 21 terms = 4410
5) In series a = 0 and t₁₀₀ = 99 = 4950
The first 100 terms of a series add up to 4950, and the first 21 terms of a series where a = 20 and t21 = 400 add up to 4410
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What is the distance between (2, -4) and (9,-4)?
8 units
11 units
0 units
07 units
Answer: 7 units
Step-by-step explanation:
You purchased an antique guitar for 8600. It is expected to appreciate at 2.4% annually. How long will it take the guitar to double in value
find number x if when you add 7 to it and double the result you get 19 more than x
Answer:
x = 6
Step-by-step explanation:
2x + 7 = 19
-7 -7
2x = 12
*divide both sides by 2*
x = 6
Find the value of the trigonometric ratio.
(D)
Step-by-step explanation:
sin x = opp/hyp
= 40/41