Hi, Can you help me with the area and perimeter?
A population of values has a normal distribution with μ = 245.3 and σ = 96 . You intend to draw a random sample of size n = 50 . Find the probability that a single randomly selected value is greater than 246.7. P(X > 246.7) = 0.0146 Incorrect Find the probability that a sample of size n = 50 is randomly selected with a mean greater than 246.7. P(M > 246.7) = Enter your answers as numbers accurate to 4 decimal places. Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted.
Answer:
0.4589
Step-by-step explanation:
We solve using z score formula
The z score formula for a random number of samples is:
z = (x-μ)/σ/√n, where x is the raw score, μ is the population mean, and σ is the population standard deviation
Hence:
z = 246.7 - 245.3/96/√50
z = 0.10312
Probability value from Z-Table:
P(x<246.7) = 0.54107
P(x>246.7) = 1 - P(x<246.7) = 0.45893
Approximately to 4 decimal places = 0.4589
The probability that a single randomly selected value is greater than 246.7 is 0.4589
y+c=14........ solve for y
Answer:
7+7=14
Step-by-step explanation:
there is no times in it it's just addition so there for you just need to find what adds up to 14
Answer:
y=14-c
this question is weird
Jill aunt got her a $50 gift card to her favorite boutique she has already picked out 4 shirts that cost $8.00 each how many pairs of shorts can she buy if shorts cost $10 a pair?
Answer:
1
Step-by-step explanation:
If she has four $8 shirts, that costs $32, leaving her with $18 dollars, only enough for 1 pair of $10 shorts
3) A cookie recipe calls for 9 cups of flour for 4
batches of cookies. How many cups of flour
per 1 batch of cookies? How many cups of
flour are needed for 11 batches of cookies?
Why does my girlfriend blush when I tell her I love her
Answer:
Because she feel's loved.
Step-by-step explanation:
When you tell her that you love her , it make's her feel like she is worth some thing. She feel's the same way about you so she blushes
y + 4 + 2x + 3y
can someone simplify it
Answer:
2x+4y+4
Step-by-step explanation:
Answer:
y×(1+3)+2×(2+x)
Step-by-step explanation:
y(1+3)+2x+4
2(x+2)
For Part A, use a piece of paper. For parts B-D, use the text box below.
A. Plot the data on a piece of paper. (make sure you label your axes and put a title). Draw a line of best fit.
B. Write an equation for the line of best fit.
C. What income would a person have if he attended school for 2 years? Explain how you got the answer.
D. How many years would you need to attend college in order to have an income of at least $50,000?
Answer:
wait you want me to answer this
Please answer this question :)
Answer:
5.2692307692307692307692307692308
Step-by-step explanation:
hope this helps! :)
suppose an elevator starts at the top floor of a high rise building at a height of 500 feet above the ground floor and descends without stopping at a rate of 17 seconds
Write a function that describes the height, h of the elevator after t seconds in function form
Answer:
answer is in the picture
Step-by-step explanation:
hope this helps
PLEASEEEEE HELPPPPPP ASAPPPPPPPP
9514 1404 393
Answer:
64r -48r -144
Step-by-step explanation:
The January cost expression is ...
62p -48p -144 -432 = profit
The cost is identified as having 3 components, so the profit will have 4 components:
(selling price)×p - ((cost per unit)×p +(fixed monthly cost)) -(first month startup cost) = profit
Comparing this to the given equation, we identify the components as ...
selling price = 62
cost per unit = 48
fixed monthly cost = 144
first month startup cost = 432
We note that 432 = 3×144, so is consistent with the description of startup costs.
Increasing the selling price by $2 will raise it from 62 to 64. In February, the initial month startup cost disappears, so the profit equation becomes ...
(selling price)×r - ((cost per unit)×r +(fixed monthly cost)) = profit
64r -48r -144 = profit
Deion divided 1/2 of a liter of plant fertilizer evenly among some smaller bottles. He put 1/8 of a liter into each bottle. How many smaller bottles did Deion fill?
Answer:
4 bottles
Step-by-step explanation:
Given
[tex]Fertilizer = \frac{1}{2}L[/tex]
[tex]Bottles = \frac{1}{8}L[/tex]
Required
Determine the number of bottles
Represent the number of bottles with N
This implies that N bottles of [tex]\frac{1}{8}L[/tex] fit into [tex]\frac{1}{2}L[/tex] of fertilizer. The relationship between them is:
[tex]Fertilizer = Bottles * N[/tex]
[tex]\frac{1}{2}L = \frac{1}{8}L* N[/tex]
[tex]\frac{1}{2} = \frac{1}{8}* N[/tex]
Multiply through by 8
[tex]8 * \frac{1}{2} = 8 * \frac{1}{8}* N[/tex]
[tex]4 = 1* N[/tex]
[tex]4 = N[/tex]
[tex]N = 4[/tex]
Hence, there are N = 4
5. Jordan works at the car wash a few hours a week and works mowing lawns for extra money.
Because of his schoolwork, he can't work more than 10 hours per week. Write a rule to see possible
solutions for his work schedule. Let x represent hours at the car wash, and y represent the hours
mowing lawns.
Answer:
The rule is
x + y ≤ 10
Step-by-step explanation:
Here, we want to write a rule that can help get solutions for the individual work hours
The number of hours for car wash is x while the number of hours for mowing lawns is y
Since he cannot work more than 10 hours, he can still work less than 10 hours
What we just have is that the addition of both working hours must not be over 10
So the rule to write is;
x + y ≤ 10
Tre has to pay $180 to book the recording studio plus $30 per hour of recording time. The function c(h)=30h+180 relates the total cost, c(h) of the recording session (in dollars) to the number of hours, (h) needed to record the tracks.
Answer:
1. $3302. 11.5 hoursStep-by-step explanation:
Continuation of the question:
1. Find c (5) and interpret your solution in the context of the problem 2. Find the value of h when c() = 525 and interpret your solution in the context of the problemSolution
c(h) = 30h + 1801 ...............................................
c(5) = 30*5 + 180 = $3302 ...............................................
525 = 30h + 18030h = 525 - 18030h = 345h = 345/30 h = 11.5 hoursMr. K cooked down 2 pumpkins yesterday. He did this to make pumpkin pies for Thanksgiving. He was able get 30.5 cups of pumpkin. If Mr. K needs 1 ¾ Cups of pumpkin to make 1 pie, how many pies can he make with the pumpkin he cooked down last night? double work pleaseeee helpp meeee
Jenny is renting a moving truck. She will have to pay a one-time fee for insurance coverage and pay the daily rate for the truck each day she uses it. The total cost of renting the truck in terms of the number of days the move will take can be modeled by the equation: y = 100x + 85. A. What is the slope? B. What is the y-intercept?
Answer:
Slope is 100
y-intercept is 85
Step-by-step explanation:
The equation of a straight line can be modeled according to the function;
y = mx + c
where m is the slope and c is the y-intercept
comparing what we have ;
y = 100x + 85 with the standard form ;
Slope will be 100 and y-intercept is 85
HELP PLZ. ASAP I need an answer.
Answer:
6.5
Step-by-step explanation:
You can see that the total Coast change from Month 0 to Month 2 by 13$ (35-22= 13). Since these are two month we need to divide them by 2 (13/2= 6.5)
6.5 is the total rate of change per months
When Judy worked 4 hours and Ben worked 1 hour, their combined pay was $75. When Judy worked 2 hours and Ben worked 6 hours, their combined pay was $120. Find the hourly rate of pay for Ben and Judy.
Answer:
They each earn 15 an hour
Step-by-step explanation:
Answer:
They both make $15
Step-by-step explanation:
In the first scenario Judy worked for 4 hours, (4)*(15)=60 plus Ben, (1)*(15)=15 which equals 75. In the second scenario, Judy works 2 hours so (2)*(15)=30 and Ben works 6, (6)*(15)= 90 which is 120.
Mr. Wilson divided his money between Dennis and Margaret in the ratio 4:2.
Margaret got the smaller amount of $1256. How much did Dennis receive?
Answer:
$2512.00
Step-by-step explanation:
if Margaret is = to 2 then Dennis = 4
if Margaret got the smaller amount of $1256 and 2 is multiplied to by 2 to get 4. then all you have to do is multiply Margret's amount by two and then you will get Dennis's amount.
hope this helps
love E
Help please for math
Answer:
1 5/8 feet/year
Step-by-step explanation:
Height tree grew in 10 years
= 36 3/4-20 1/2
= 16 1/4 feet
Rate tree grew in a year
= 16 1/4÷10
= 1 5/8 feet/year
HELPPPPPPPPPPPP
i give brainliest!
Answer:
C
Step-by-step explanation:
The scuba diver started at -55 feet as it says below the surface then went up 20 feet so the equation would be -55+20=-35
What is the slope intercept
Answer:
rise is 20 and run is 5 so slope is 4.
I think the slope y-intercept is -5
Parallel and perpendicular line what do the following two equations represent? y-3=2(x-3)
y+5=2(x+1)
A) The same line
B) Distinct parallel lines
C) Perpendicular lines
D) Intersecting, but not perpendicular lines
Answer:
A or D
Step-by-step explanation:
2(2x+2)=7x+2-3x+2
solve
Answer:
All real numbers make this answer true: so x= all real numbers
Step-by-step explanation:
a=3b+4c-a is this a litteral equation
Answer:
a= 3b+4c/2
Step-by-step explanation:
2a=3b+4c
a= 3b+4c/2
3/13% of a quantity is equal to what fraction of the quantity?
Answer: 3/1300
Sorry I’m late !!
9/4 plus 3/8 (please show work)
Answer:
21/8 or 2 5/8
Step-by-step explanation:
9/4 + 3/8
The least common denominator being 8 so you would add the numerators.
18+3/8
Which would be:
21/8 or, as a mixed fraction, 2 5/8
#30 PLEASE HELP!! DUE SOON :(
Answer:
Step-by-step explanation:
Use this to help; starting out, this is coordinate plain, NOT TO SCALE.
Use the coordinates to figure out midpoints. If you don't know how to, look up the calculation method for it.
Sorry I couldn't help out more, gotta get back to essay.
if you answer this right I will give you Brainliest
What is 2+2
Answer:
fish
Step-by-step explanation:
Answer:
2
Step-by-step explanation:
Cardi B is buying a condo built within
a skyscraper. She learned that each floor is 13 feet tall.
Write an expression to represent the height of the skyscraper if it has f
floors, where f is the number of floors.
How tall, in feet, would her condo be in the skyscraper if she was on the 26th floor?
PLEASE HELP... 25 points
Answer:
13f is equation
which is floors times height
Step-by-step explanation:
26*13=338
338 feet tall
Brainliest appreciated!
Answer:
(H)=13f and the height is 338ft
Step-by-step explanation:
height of skyscraper=h
f=floors
height per floor is 13ft...
(H)=13f
(H)=13*f, if f is 26, then to find height multiply 13 by 26
doing this you get 13*26=338ft