Answer:
Step-by-step explanation:
Given that :
Mean (μ) = 2500
Standard deviation (σ) = 400
P = 97.5% = 0.975
Zscore corresponding to p(z > x) = 0.975
Z = - 1.96 ( Z probability calculator)
Using the relation :
Zscore = (score (x) - μ) / σ
-1.96 = (x - 2500) / 400
x - 2500 = 400 * - 1.96
x - 2500 = - 784
x = - 784 + 2500
x = 1716
Hence, number of flying hours required is 1716
In AABC, a = 8, b = 5, and c = 9. What is the value of
angle B.
Steve is buying apples for the fifth grade. Each bag holds 11 apples. If there are 91 students total, how
many bags of apples will Steve need to buy if he wants to give one apple to each student?
Steve will need to buy
bags.
Median for 5,8,10,1,7,6,15,8,6
Answer: 7
Step-by-step explanation: How I Got 7 is the median is the middle number of the data table so the median is always the middle number of the equation Hope This Helps ;)
The median is the middle number in a set of ordered numbers.
So let's first write our data set from least to greatest.
1, 5, 6, 6, 7, 8, 8, 10, 15
Since the 7 appears in the middle, it's our median.
Lots of points! Will give brainliest!
Answer:
Step-by-step explanation:
5
Suppose that 84% of the cases of car burglar alarms that go off are false. Let p be the proportion of false alarms in a random sample of 110 cases of car burglar alarms that go off. Calculate the mean and standard deviation of p and describe the shape of its sampling distribution.
Round your answer to four decimals places if necessary
up= ______
op= ______
The sampling distribution of p is normal or skewed to the right?
Answer:
0.84 ; 0.0349545 ; symmetric
Step-by-step explanation:
Given that:
p = proportion of false alarm
Sample size (n) = 110
The mean of p
Since 84% of car buglar alarms turns out as false, then, the mean value of p = 0.84
To obtain the standard deviation ; we use the relation ;
√(p(1 - p) / n)
Standard deviation :
√0.84(1 - 0.84) / 110
√0.84(0.16) / 110
√0.1344 / 110
√0.0012218
= 0.0349545
np = 110 * 0.84 = 92.4 (distribution is symmetric or normal)
(M1219Q3SP) Um aplicativo de transporte de passageiros cobra uma taxa de R$ 0,75 por viagem, chamada de "Custo Fixo". Além dos R$0,75, a tarifa do aplicativo tem preço base inicial de R$2 e cobra R$1,40 por quilômetro rodado e R$ 0,26 por minuto de viagem. Considerando a distância percorrida em quilômetros igual a “q” e o tempo de viagem em minutos igual “t”, qual a função que representa o valor a ser cobrado por uma viagem usando esse aplicativo de transporte de passageiros é:
Step-by-step explanation:
M1219Q3SP) Um aplicativo de transporte de passageiros cobra uma taxa de R$ 0,75 por viagem, chamada de "Custo Fixo". Além dos R$0,75, a tarifa do aplicativo tem preço base inicial de R$2 e cobra R$1,40 por quilômetro rodado e R$ 0,26 por minuto de viagem. Considerando a distância percorrida em quilômetros igual a “q” e o tempo de viagem em minutos igual “t”, qual a função que representa o valor a ser cobrado por uma viagem usando esse aplicativo de transporte de passageirosM1219Q3SP) Um aplicativo de transporte de passageiros cobra uma taxa de R$ 0,75 por viagem, chamada de "Custo Fixo". Além dos R$0,75, a tarifa do aplicativo tem preço base inicial de R$2 e cobra R$1,40 por quilômetro rodado e R$ 0,26 por minuto de viagem. Considerando a distância percorrida em quilômetros igual a “q” e o tempo de viagem em minutos igual “t”, qual a função que representa o valor a ser cobrado por uma viagem usando esse aplicativo de transporte de passageiros
HELP
Lin ran 2 ¾ miles in ⅖ of an hour. Noah ran 8 ⅔ miles in 4/3 of an hour.
Who ran faster, Noah or Lin?
How far would Lin run in 1 hour?
How far did Noah run in 1 hour?
How long would it take Lin to run 1 mile at that rate?
How long would it take Noah to run 1 mile at that rate?
Lin ran faster because if you convert 2/5=24mins 4/3=80mins and lin would run 2.5 miles in an hour and Noah would run 0.75 miles
Assume that process that makes the parts can be altered to adjust the overall mean of the reflectiveness score. Also assume that if an individual part has a score less than 85, then the part is given a passing quality score. The adjusted value of the true mean in population S that would result in approximately 80% of parts from that population being given a passing score is:______
a. greater than 80
b. less than 80
c. equal to 80
Answer:
c. equal to 80
Step-by-step explanation:
Given that:
The population mean = 80
The standard deviation is = 6
The sample mean = 85
The objective is to find the probability that is less than 85
[tex]P(X < 85) = P( Z < \dfrac{x-\mu}{\sigma})[/tex]
[tex]P(X < 85) = P( Z < \dfrac{85-80}{6})[/tex]
[tex]P(X < 85) = P( Z < \dfrac{5}{6})[/tex]
[tex]P(X < 85) = P( Z < 0.833)[/tex]
From the standard normal table
P(X <85) = 0.7977
P(X< 85) = 79.77%
P(X< 85) = 80%
Therefore, The adjusted value of the true mean in population S that would result in approximately 80% of parts from that population being given a passing score is: equal to 80 .
A restaurant gets 593.31 every week. How much will they make in a year? Round your answer to the nearest cent
Answer:
30936.903999
Step-by-step explanation:
Answer:
They will make 28478.88
Step-by-step explanation:
First you multiply 12 by 4 because there is 12 months in a year and there is 4 weeks in one month. So next you will multiply 48 (that’s what 14 by 4 is), by 593.31. And you get 28478.88
HELP PLEASE!!! 17 POINTS!!
If triangle PQR is plotted, it will have the following coordinates,P(-4,0),Q(4,2)and R(-2,4). If point R is translated 4 units right and 7, what are the coordinates of R'?
Answer:
(2, -3)
Step-by-step explanation:
Right now, R is at (-2, 4). If it is pushed 4 units to the right, it becomes -2+4 = 2 on the x-axis. If it is pushed 7 units down, it becomes 4-7 = -3. Thus, the coordinates are (2, -3)
A triangle has vertices A(-3,6), B(-3, 4), and C(3,4).
If the triangle is translated 2 units to the right and 1 unit down, what will be the new coordinates of vertex A?
Answer:
(-1, 5)
Step-by-step explanation:
Right now, A is at (-3, 6). If it is pushed 2 units to the right, it becomes -3+2 = -1 on the x-axis. If it is pushed 1 unit down, it becomes 6-1 = 5. Thus, the coordinates are (-1, 5)
what is the domain and range of the graph?
Answer:
Domain- {-2,0,2}
Range- {0,6,12}
Step-by-step explanation:
Answer:
Domain- {-2,0,2}
Range- {0,6,12}
Step-by-step explanation:
domain is x and range is y
Use the similar triangles to setup a proportion and solve for x
Answer:
[tex]\frac{22}{12}[/tex] = [tex]\frac{x}{10}[/tex]
Step-by-step explanation:
ΔUSA ≅ ΔPAL
[tex]\frac{AU}{AP}[/tex] = [tex]\frac{US}{PL}[/tex]
[tex]\frac{22}{12}[/tex] = [tex]\frac{x}{10}[/tex]
x = [tex]\frac{220}{12}[/tex] = [tex]\frac{55}{3}[/tex] = [tex]18\frac{1}{3}[/tex]
Which expression is equivalent to −78−(−34)
Answer:
-44
Step-by-step explanation:
Mathematics:If she uses 486.7 cm of paper to cover the lateral surface area of the cylinder,what is the diameter of the cynlinder?
Answer:
iiamdsjefej 444 i like milk
Step-by-step explanation:
wffdfe
(25 POINTS) Terry realized that 25% of his money was $12.50. He made a double number line to represent this. What number would go in the first missing box?
Answer:
you would double it A 0 12.50 25.00
B 0 25 50
Step-by-step explanation:
not 100% hope > helped
Estimate 8.2x6.7/0.46
Answer:
119 i hope it helps (:(
Step-by-step explanation:
A sample of 50 students is taken from a local college and it is found that the
average test score of a recent math exam was 78 with a standard deviation of 6.
What percent of the entire school population can be expected to have score
above 84?
Your answer
i got 13 I am pretty sure that Is the answer
Find the angle whose complement is 79 degree
Answer:
Complementary angels= 90⁰
90-79= 11
11⁰
Answer: 11 degrees
Step-by-step explanation:
complementary angles equal 90 degrees
90 - 79 = 11
Can you guess my number?
I am thinking of a number less than 91/2.Write down at least 3 choices of
what my number could possibly be.
Answer:
47 77 85
EXPLANATION
If 1 day (24 hours) is equal to 1000 years, what does one minute equal?
Answer:
Step-by-step explanation:
1440 minutes in a day. meaning that 1.44 years is about a minute
What is 50% of 36?
o9
o16
o18
o34
Answer:
18
Step-by-step explanation:
What is the value of 1/2 plus 1/3
First to answer
Answer:
The value is 5/6 or 0.83
Let me know if its correct! Have a great day!
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Which statements are true? Check all that apply
Answer:
1 1/2 >15
Step-by-step explanation:
One week, Sarah earned $192.00 at her job when she worked for 8 hours. If she is paid the same hourly wage, how many hours would she have to work the next week to earn $408.00?
Answer:
17 hours
Explanation:
Answer please!! urgent!!
Answer:
a
Step-by-step explanation:
Can U help me please
Answer:
The equation that represents the relation between the figure number, x, and the number of the tiles, y is y = 2x + 1
Step-by-step explanation:
The slope-intercept form of the equation is y = m x + b, where
m is the slope ⇒ constant rate of changeb is the y-interceptIn the given pattern
∵ x represents the figure number
∵ y represents the number of tiles
∵ At x = 1, y = 3
∵ At x = 2, y = 5
∵ At x = 3, y = 7
∵ 5 - 3 = 2 and 7 - 5 = 2
→ That means the constant rate of change is 2
∴ m = 2
→ Substitute it in the form of the equation above
∴ y = 2x + b
→ To find b substitute x and y by the first figure
∵ x = 1 and y = 3
∴ 3 = 2(1) + b
∴ 3 = 2 + b
→ Subtract 2 from both sides to find b
∴ 3 - 2 = 2 - 2 + b
∴ 1 = b
→ Substitute it in the equation
∴ y = 2x + 1
The equation that represents the relation between the figure number, x, and the number of the tiles, y is y = 2x + 1
The Steckels decide to spend less on food and entertainment in order to put more money into savings. Which graph could represent the Steckels’ new budget?
Answer:
A histogram maybe
Step-by-step explanation:
0.09 divided by 0.81
Answer:
9
Step-by-step explanation:
Basically just remove the decimals and do 81/9 and you will get nine
You can remove the decimals because you are dividing which means that either way, you will get the same answer
the answer is 9 hope this helps
PLS HELP THIS IS DUE IN 10 MINUTES!!!
Answer:
yes
Step-by-step explanation:
All linear functions crossing the origin are proportional.
HTH :)
Graph each set of integers on a number line.
7. (4, -3, 1,5)
-6-5-4-3-2-1 0 1 2 3 4 5 6
8. (-15, -12, -9, -2)
+++++
-14 -12 -10 8-6
H-
-2
4
9. (8,3, -7,-5)
-8 6 4
-2.
0
2.
4
6
8
10. 1-14, - 7, 10, -1)
++
-15
-12
9
3
0
3
6
9
11. 1-6, -1,0,31
-6-5-4-3-2-1 0 1 2 3 4 5 6
Answer:
-14 -12 -10 8-6
Step-by-step explanation: