Answer:
385
Step-by-step explanation:
Given that:
Margin of Error (MOE) = 5% = 0.05
Zcritical, 95% = Z(1-α/2) = Z0.025 = 1.96
MOE = Zcritical * (√p(1-p))/n)
p is taken as 0.5 when not stated ;
5 = 1.96 * sqrt[(0.5 * 0.5) / n]
5 = 1.96 * sqrt(0.25/n)
Square both sides
(0.05/ 1.96)² = 0.25/n
0.0006507 = 0.25/n
0.0006507 * n = 0.25
n = 0.25 / 0.0006507
n = 384.20162
Sample size = 385
Which number is a perfect square?
O A. 32
O B. 144
O C. 1,000
<
O D. 36,000
Please help
Answer:
The answer is 144
Step-by-step explanation:
Because the square root of 12 is 144 making a whole number.
An online shopping club has 10,000 members when it charges $7 per month for membership. For each $1 monthly
increase in membership fee, the club loses approximately 400 of its existing members. Write and simplify a function
R to represent the monthly revenue received by the club when x represents the price increase.
Answer:
The function that can be used in the online shopping club about its monthly revenue is:
[tex]R = -400x^{2} +7200x+70000[/tex]
Step-by-step explanation:
First, we're gonna take into account the different values we have in the exercise:
10,000 members$7 per month for membershipLoses of 400 members by each $1 monthly increaseHow the variable [tex]x[/tex] represents the price increase, we can do the formula below:
[tex](10000 - 400x) * (7+x)[/tex]In this formula, we represent in the first part that by each 1 in the variable [tex]x[/tex], the total of members will be reduced in 400, in the second part, we mention that at the same time, the membership fee will be increased in the same value of [tex]x[/tex]. Now we must simplify this function:
[tex](10000 - 400x) * (7+x)[/tex]We operate the values:
[tex]70000+10000x-2800x-400x^{2}[/tex]Solve we can:
[tex]70000+7200x-400x^{2}[/tex]And organize:
[tex]-400x^{2} +7200x+70000[/tex]At the end, how [tex]R[/tex] represents the monthly revenue received by the club, we use that variable for our formula:
[tex]R=-400x^{2} +7200x+70000[/tex]2. Solve the equation.
x - 5(x - 1) = x - (2x - 3)
Answer:
=2/3
Step-by-step explanation:
Help pls confused with question
Answer:
Number 2: I believe an 85
Number 4: The answer is 20 days.
Step-by-step explanation:
(1, 1), (–1,5)
find slope
Answer:
slope = 0MARK ME AS A BRAINLIST AND FOLLOW MEPls help with this math problem
Answer:
y=1/4x+6
Step-by-step explanation:
The formula for writing a slope equation is y=mx+b. The slope is 1/4, or m, and the y-intercept is 6, or b. Don't worry about the x or y, leave them as variables.
3(9+c+b) if c=13 and b=4
Answer:
78
Step-by-step explanation:
Hope this helped. Pls mark brainliest
Answer:
78
Step-by-step explanation:
3(9+13+4)
9+13+4 = 26
3(26) = 78
What is the slope of a line with the cords (-3,2) (-1,-1)
Answer:
X2 = 1.0792
Y2 = 2.0594
ΔX = 4.0792
ΔY = 3.0594
θ = 36.869897645844°
Equation of the line:
y = 0.75x + 1.25
When x=0, y = 1.25
When y=0, x = -1.6666666666667
OR
X2 = -7.0792
Y2 = -4.0594
ΔX = -4.0792
ΔY = -3.0594
θ = 216.86989764584°
Equation of the line:
y = 0.75x + 1.25
When x=0, y = 1.25
When y=0, x = -1.6666666666667
n a box of 12 tape measures, there is one that does not work. Employees take a tape measure as needed. The tape measures are not returned, once taken. You are the 8th employee to take a tape measure. Is this a binomial experiment?
a. Yes, the probability of success is one out of 12 with 8 selected.
b. No, the probability of getting the broken tape measure changes as there is no replacement.
c. Yes, you are finding the probability of exactly 5 not being broken.
d. No, binomial does not include systematic selection such as "eighth".
Answer:
b. No, the probability of getting the broken tape measure changes as there is no replacement.
Step-by-step explanation:
For each tape measure, there are only two possible outcomes. Either it is broken, or it is not, which means that the first condition for the binomial distribution is respected.
However, the tapes are not returned to the box, which means that in each trial, the probabilities of getting the tape with defect changes, which means that the binomial distribution cannot be used. So option b is the correct answer
Please help me i will give a Brainly and 100 points
Answer:
Part a) The graph in the attached figure
Part b) The units rate of change is 9
Step-by-step explanation:
we know that
A relationship between two variables, t, and d, represent a proportional variation if it can be expressed in the form or
step 1
Find the constant of proportionality k
For
substitute
the linear equation is equal to
using a graphing tool
see the attached figure
step 2
Find the unit rate
we know that
In a proportional relationship the constant of proportionality k is equal to the unit rate of change or slope m of the line, because the line passes through the origin
so
The units rate of change is 9
That means------> A change of 1 unit in t correspond to a change of 9 units in d
see the attached figure to better understand the problem
Answer:
Have a nice day! Answer is above good luck:)
You can buy a box of 150 sharpies for $165 or a dozen for $13.50? Which of the two prices is a better deal and explain why
Answer:
do the a dozen for $13.50
Step-by-step explanation:
It will help save money
Answer:
The dozen for $13.50 is a way better deal
Five units to the right of -6
Answer: -1
Step-by-step explanation:
Please help don’t understand
Answer:
[tex]3b+9n-8[/tex]
Step-by-step explanation:
Combine like terms:
[tex]7b+8n-4b-8+n=3b+8n-8+n[/tex]
Combine like terms:
[tex]3b+8n-8+n=3b+9n-8[/tex]
Matthew bought a video game for 25 dollars the following week his friend found the game on sale and bought it for 17 dollars what is the percent of decrease in price of the game
Answer:
14% decrease
Step-by-step explanation:
they making me write more since I'm ambitious
Hannah has 10 puzzle magazines what percentage of Hannas magazines are word search magazines?
Step-by-step explanation:
Can you tell us how many word search magazines there are? Thank you,
Hello can you tell me what the answer of this How many subets dose the set a have a= ( a,b,c,d)
Answer:
16 subsets
Step-by-step explanation:
To know the number of subsets that the set have, we will have to find the power of the set.
Given the set a = ( a,b,c,d)
P(a) = 2^n where;
n is the total number of element in the set
n = 4
p(a) = 2^4
P(a) = 16
Hence the set has 16 subsets
what is the value of the y coordinate of point A
Answer:
E on Edge
Step-by-step explanation:
The total population of Aiken County is 173,000 and there are approximately 23,000 students enrolled in Aiken County schools. What percentage of Aiken County residents are enrolled in Aiken County schools? Round your answer to the nearest tenth.
Answer:
Percentage = 13%
Step-by-step explanation:
Given the following data;
Total population = 173,000
Number of students = 23,000
To find the percentage;
[tex] Percentage = \frac {Number \; of \; students}{Total \; population} * 100 [/tex]
[tex] Percentage = \frac {23,000}{173,000} * 100 [/tex]
[tex] Percentage = \frac {23}{173} * 100 [/tex]
[tex] Percentage = 0.1330 * 100 [/tex]
Percentage = 13.3 ≈ 13%
Therefore, the percentage of Aiken County residents that are enrolled in Aiken County schools is 13%.
What’s the anwser for this. I’m so confused
Answer:
Its A
Step-by-step explanation:
the graph shows the voltage in a circuit changing as temperature increases from 100° to 600°. which is the best estimate for the rate of change of the voltage over the interval?
1.5 volts
3 5 volts
5.5 volts
7.5 volts
Answer:
3.5?
Step-by-step explanation:
The best estimate for the rate of change of the voltage over the interval will be 3.5 volts. Then the correct option is B.
What is the average rate change of a function?It is the average amount by which the function is modified per unit throughout that time period. It is calculated using the gradient of the line linking the interval's ends on the graph that represents the function. The average rate of change of the function is given as,
Average rate = [f(x₂) - f(x₁)] / [x₂ - x₁]
The graph shows the voltage in a circuit changing as temperature increases from 100° to 600°.
We know that v = 1750 at t = 600° and v = 0 at t = 100°. Then the Average rate of change is given as,
Average rate = (1750 - 0) / (600 - 100)
Average rate = 1750 / 500
Average rate = 3.5
The best estimate for the rate of change of the voltage over the interval will be 3.5 volts. Then the correct option is B.
More about the average rate change of a function link is given below.
https://brainly.com/question/23715190
#SPJ2
4.)Given m = 1/2 and the point (3, 2), which of the following is the point-slope form of the equation?
y - 2 = 1/2(x - 3)
y + 3 = 1/2(x + 2)
y - 3 = 1/2(x - 2)
y + 2 = 1/2(x + 3)
Answer:
y - 2 = 1/2(x - 3)
Step-by-step explanation:
Please let me know if you want me to add an explanation as to why this is the answer/how I got this answer. I can definitely do that, I just wouldn’t want to write it if you don’t want me to :)
Any help please need done asap?
Answer:
4
Step-by-step explanation:
12 is over 10 and 8
If you invested $250 at 16% interest, how much would you have after 18 years?
Answer:
4,000
Step-by-step explanation:
Enter the missing base
1,024= ?⁵
Can someone help me please
Answer:
5
Step-by-step explanation:
3/4 into a percent and a decimal
Answer:
75% and .75
Step-by-step explanation:
what percent of 157 is 119.3
Answer:
75.8 is your answer
Step-by-step explanation:
119:157*100 =
(119*100):157 =
11900:157 = 75.8
Answer:
187.301 is 157% of 119.3
Step-by-step explanation:
Can someone please tell me the answer ..
Answer:
148
Step-by-step explanation:
Please answer and explain for 15 points
Answer:
55% or 27.2 ounces
In a study of pain relievers, 100 people were given product A, and 71 experienced relief. In the same study, 50 people were given product B, and 31
experienced relief.
Fill in the blanks of the statement below to make the statement the most reasonable possible.
Product? performed worse in the study because only % got relief with this product, whereas % got relief with Product?
Answer:
Product B performed worse
Step-by-step explanation:
71% experienced relief with Product A
31/50, which is 62%, got relief with Product B
