Answer:
66.666666666667%
Step-by-step explanation:
Determine the value of x if y=3
y = 2x+3
Answer:
0
Step-by-step explanation:
3 = 2x + 3
0 = 2x
x = 0
An operation manager at an electronics company wants to test their amplifiers. The design engineer claims they have a mean output of 451451 watts with a variance of 144144. What is the probability that the mean amplifier output would be greater than 449.8449.8 watts in a sample of 7676 amplifiers if the claim is true?Round your answer to four decimal places.
Answer:
The probability that the mean amplifier output would be greater than 449.8 watts in a sample of 76 amplifiers is 0.8078.
Step-by-step explanation:
According to the Central Limit Theorem if an unknown population is selected with mean μ and standard deviation σ and appropriately huge random samples (n > 30) are selected from this population with replacement, then the distribution of the sample means will be approximately normally.
Then, the mean of the sample means is given by,
[tex]\mu_{\bar x}=\mu[/tex]
And the standard deviation of the sample means is given by,
[tex]\sigma_{\bar x}=\frac{\sigma}{\sqrt{n}}[/tex]
The information provided is as follows:
[tex]\mu=451\\\sigma^{2}=144\\n=76\\\bar x=449.8[/tex]
Compute the probability that the mean amplifier output would be greater than 449.8 watts in a sample of 76 amplifiers as follows:
[tex]P(\bar X>449.8)=P(\frac{\bar X-\mu_{\bar x}}{\sigma_{\bar x}}>\frac{449.8-451}{\sqrt{144/76}})\\\\=P(Z>-0.87)\\\\=P(Z<0.87)\\\\=0.8078[/tex]
*Use a z-table.
Thus, the probability that the mean amplifier output would be greater than 449.8 watts in a sample of 76 amplifiers is 0.8078.
How many cups are in 3 gallons? 1 gallon = 16 cups
Label your answer in cups.
Answer:
There are 48 cups in 3 gallons!
Hope this helped! :)
In a country, 31 % of the people that voted for candidate AA are women. Moreover, 10% of the population are women and voted for A. What is the percentage of people that voted for candidate AA?
This question is incomplete, the complete question is;
In a country, 31 % of the people that voted for candidate AA are women. Moreover, 10% of the population are women and voted for AA. What is the percentage of people that voted for candidate AA?
Answer:
the percentage of people that voted for candidate AA is 32.3%
Step-by-step explanation:
Given that;
31 % of the people that voted for candidate A are women
P( women/Candidate AA) = 0.31
Moreover, 10% of the population are women and voted for AA
P( women & candidate AA) = 0.10
so
p( Candidate AA) = P( women & candidate AA) / P( women/Candidate AA)
p( Candidate AA) = 0.10 / 0.31
p( Candidate AA) = 0.323
p( Candidate AA) = 32.3%
Therefore the percentage of people that voted for candidate AA is 32.3%
Please check #9 and tell me if I’m right
Q: Find (x) so the (L) is parallel to (m) and state the converse used
Answer:
that's 53 °not 90 i thought
where n 2 1
OS – On -3
1-
Mn
(
01'0
-
1
)
=
"
n
when dividing 592 by 9.25, how many zeros will be placed in the dividend?
A: one
B: two
C: three
D: four
A manufacturer produces bolts of a fabric with a fixed width. The cost of producing x yards of this fabric is C = f(x) dollars.
Required:
a. What is the meaning of the derivative fâ'(x)? What are its units?
b. In practical terms, what does it mean to say that fâ'(2,000) = 10?
c. Which do you think is greater, fâ'(200) or fâ'(600)? What about fâ'(4,000)?
Correct is;
A manufacturer produces bolts of a fabric with a fixed width. The cost of producing x yards of this fabric is C = f(x) dollars.
(a) What is the meaning of the derivative f '(x)?
What are its units?
(b) In practical terms, what does it mean to say that f '(2000) = 10?
(c) Which do you think is greater,
f '(200) or f '(600)? What about f '(4000)?
Answer:
A) f'(x) means the rate of change of the cost of production with respect to the number of yards that were produced.
It's unit is $/yard
B) f '(2000) = 10 means that after production of 2000 yards of fabrics, the cost of production will be increasing at a rate of $10 per yard.
C) f' (200) > f'(600)
f'(4000) > f'(600)
Step-by-step explanation:
A) Since the cost of producing x yards of this fabric is C = f(x) dollars. f'(x) simply means the rate of change of C with respect to x.
In clearer terms, the derivative f'(x) means the rate of change of the cost of production with respect to the number of yards that were produced.
It's unit is $/yard
B) To say f '(2000) = 10 means that after production of 2000 yards of fabrics, the cost of production will be increasing at a rate of $10 per yard.
C) f '(200) is greater than f'(600) because the cost of making the 600th yard will be less than the cost of the 200th yard. Reason for this is due to economics of scale as the manufacturer will certainly make more efficient use of fixed costs of production.
As more units are produced, there may likely be more overtime costs and thus the rate of increase cost of production will likely increase faster.
Thus;
f'(4000) > f'(600)
x - y = 4
2x + y = -4
x = y =
Answer: x = 4 + y
x= -2 - y/2
Step-by-step explanation:add y to both sides of the equation
Misty wants to save money to purchase a new bicycle that costs $279. She
opens a savings account and deposits $7 per week. How many weeks will it
take for her to save enough money to buy the bicycle?
Answer: Hmm, I want to say it will be about 40 weeks before she can get the bike, hope this helps!
Step-by-step explanation:
Answer:
40 weeks
Step-by-step explanation:
what is the value of y when x = 43
PLS HELPP
Answer:
Hi there~
y=87
X side. Y side
1. 3
2. 5
3. 7
4. 9
5. 11
Step-by-step explanation:
We can see that ix x = 1 and y = 3, then that means 1+2
then its 2+3 then 3+4 and so on
So 43 + 44 = 87
So y should equal 87 :)
Which transformation preserves angle measures, but not segment lengths?
Answer:
Dilation
Step-by-step explanation:
Let's pretend you are interested in learning what music teens prefer.
Choose a survey setup below that would most likely represent teens the
best. Add a post to the discussion board that identifies which option you
think is the best representation and why. Also, take a moment to read
the observations posted by your peers. Choose two different posts to
respond to and explain why you agree or disagree with your classmate.
Option 1: You stand outside of the grocery store and ask 100 people
what type of music they prefer.
Option 2: You randomly draw 100 names from a hat of students at your
school, and ask those students what type of music they prefer.
Option 3: You randomly select 2 neighborhoods in your town and ask 50
people in each neighborhood what type of music they prefer.
Answer:
option 2
Step-by-step explanation:
What percent of $44,000 is $150
Answer:
approximately 0.34%
What is the formula for finding distance?
Answer:Learn how to find the distance between two points by using the distance formula, which is an application of the Pythagorean theorem. We can rewrite the Pythagorean theorem as d=√((x_2-x_1)²+(y_2-y_1)²) to find the distance between any two points. Created by Sal Khan and CK-12 Foundation
Step-by-step explanation:
Erin entered the following expression into her graphing calculator.
14800*(1+.04/12)
(1242)
Which of these future values could she have been calculating?
A. The future value of $14,800 invested at 12% interest compounded
semiannually for 4 years.
B. The future value of $14,800 invested at 4% interest compounded
monthly for 2 years
C. The future value of $14,800 invested at 12% interest compounded
quarterly for 2 years
D. The future value of $14.800 invested at 4% interest compounded
semiannually for 12 years.
The correct future values could she have been calculating is,
⇒ The future value of $14,800 invested at 4% interest compounded
semiannually for 12 years.
What is Multiplication?To multiply means to add a number to itself a particular number of times. Multiplication can be viewed as a process of repeated addition.
Given that;
Erin entered the following expression into her graphing calculator,
⇒ 14800 (1 + 0.4/12)¹²°²
Thus, We get;
The correct future values could she have been calculating is,
⇒ The future value of $14,800 invested at 4% interest compounded
semiannually for 12 years.
Learn more about the multiplication visit:
https://brainly.com/question/10873737
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A recipe uses 2 eggs to make 24
cookies. How many cookies could
you make with 9 eggs?
Answer:
49-50 cookies
Step-by-step explanation:
Hope this was helpful, Have a Wonderful Day!!
Lyndsay read 200 pages of her book yesterday. Today she read 75% fewer
pages. How many pages did she read today?
Answer:
Lyndsay read 50 pages.
Step-by-step explanation:
Solve for: 22≥4m-2 or 5-3m≤-13
Answer:
22≥4m-2=6
5-3m<-13=6
Step-by-step explanation:
The inequalities 22 ≥ 4m - 2 or 5 - 3m ≤ - 13 is m ≤ 6 or m ≥ 6.
What are inequalities and their types?Inequality is a relation that compares two numbers or other mathematical expressions in an unequal way.
The symbol a < b indicates that a is smaller than b.
When a > b is used, it indicates that a is bigger than b.
a is less than or equal to b when a notation like a ≤ b.
a is bigger or equal value of an is indicated by the notation a ≥ b.
22 ≥ 4m - 2.
4m ≤ 22 + 2.
4m ≤ 24.
m ≤ 24/4.
m ≤ 6.
5 - 3m ≤ - 13.
- 3m ≤ - 13 - 5.
- 3m ≤ - 18.
3m ≥ 18.
m ≥ 18/3.
m ≥ 6.
So, m ≤ 6 or m ≥ 6.
learn more about inequalities here :
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Solve for x. x/100 = 195/200
Answer:
x = 97.5 is the answer
Step-by-step explanation:
What is the domain of the function y=3 squared root of x -1 ?
O-o
-1
O 0
1
[tex]y=3\sqrt{x-1}[/tex]
The domain is x ≥ 1 as x cannot be less than 1 or else it'll become negative in square root which you cannot find a value.
Divide: 2 ÷ 1/2
2
16
8
4
Answer:
4
Step-by-step explanation:
Answer:
4
Step-by-step explanation:
2/1 * 2/1 = 4
The senior class sells movie tickets to students and teachers. The student tickets cost $4 each and teacher tickets cost $8 each. If they earned only $44, how many possible combinations of student and teacher tickets could have been sold?
3 times what is 5
(whole number if possible)
Answer:
1.6, but can be rounded to 2
Step-by-step explanation:
Answer:
1.66
Cannot be a whole number because 3 times a whole number cannot equal 5
8 Dvided by 3/5 HELP MEEEEEEEE
Answer:
40/3
Step-by-step explanation:
how many mid-points does a segment have
Answer:
1
Step-by-step explanation:
A segment has only one midpoint because there is only one point in the exact middle of a segment.
Answer:
A line segmhas only one midpoint
John had 7 red marble and 5 blue marble in a box. Today, he put some marble in the box and the ratio is 10 red to 19 total. How many blue marbles does he put today in the box?
Answer:
He added 14 blue marbles to the box today
Answer:10 - 19 =9 answer 9 blue marbles
Step-by-step explanation:
What value of v makes the equation 3.1v + 1 = 2.5v – 3.5 true
Answer:
-7.5
Step-by-step explanation:
Answer:
What value of v makes the equation 3.1v + 1 = 2.5v – 3.5 TRUE? Show your work.
Step-by-step explanation:
E E E HEY PLEASE HELP. IM LITERALLY ABOUT TO END MYSELF.
Answer:
( 5 , - 2 )
Step-by-step explanation:
( 10 × [tex]\frac{1}{2}[/tex] , - 4 × [tex]\frac{1}{2}[/tex] ) = (5, - 2)
The 5th degree polynomial has relative maximum at x=___ and x=___
The 5th degree has relative maximum at x=___ and x=____