Answer:
The value is [tex]E(X) = 4 \ days[/tex]
Step-by-step explanation:
From the question we are told that
The mean is [tex]\mu = 36^oC[/tex]
The standard deviation [tex]\sigma = 3^oC[/tex]
Generally the probability that in June , the midday temperature is between
39°C and 42°C is mathematically represented as
[tex]P(39 < X < 42) = P(\frac{39 - 36}{3} < \frac{X - \mu }{\sigma} < (\frac{42 - 36}{3} )[/tex]
[tex]\frac{X -\mu}{\sigma } = Z (The \ standardized \ value\ of \ X )[/tex]
[tex]P(39 < X < 42) = P(1 < Z <2 )[/tex]
=> [tex]P(39 < X < 42) = P(Z < 2) - P( Z <1 )[/tex]
From the z table the area under the normal curve to the left corresponding to 1 and 2 is
P(Z < 2) = 0.97725
and
P(Z < 1) = 0.84134
[tex]P(39 < X < 42) = 0.97725 - 0.84134[/tex]
=> [tex]P(39 < X < 42) = 0.13591[/tex]
Generally number of days in June would you expect the midday temperature to be between 39°C and 42°C
[tex]E(X) = n * P(39 < X 42 )[/tex]
Here n is the number of days in June which is n = 30
[tex]E(X) = 30 * 0.13591[/tex]
=> [tex]E(X) = 4 \ days[/tex]
What is happening to this graph when the rvalues are
between - 1 and 1?
Answer:
Where's The graph?
Step-by-step explanation:
Answer:
There is no graph post the graph
Step-by-step explanation:
Which of the following quantities are continuous ?
Answer: A. only II
Step-by-step explanation:
Mathematics calculus differentiates things into discrete and continuous. Discrete things have indivisible units, the example will be how many dogs in a village. There is no half dog, it's either one, two, etc. But the distance covered by train can be written as half miles, it's the divisible unit.
The number of books and bracelets also discrete, thus the answer is A.
I am trying to be a
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
WILL GIVE 25 POINTS PLEASE HELP
Answer:
A: rising B: falling C: falling D: falling
Step-by-step explanation:
i think its correct i might be wrong
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
Jessica has 3 cards in a bag,each marked with a letter. The letters are X, Y, and Z. Without looking, she reaches into the
bag, pulls out a
card, and then puts the card back in the bag. If Jessica does this 3 times, what is the probability she pulls out the X card first, then the Y
card, and then the Z card? In a fraction
Answer:
Step-by-step explanation: It’s 3/7, 1/27, 3/20 idk which one tho :(
2/9 of my number is 4. what is my number?
Be the brainy one ny answerinng the question OK?
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 .
inside each set and subsets .write at least 5 example of each kind of number. integers , whole ,rational ,natural ,irrational
Answer:
Integers: is the set of all the numbers that can be created by adding ones or subtracting ones a given number of times to zero.
for example:
4 = 0 + 1 + 1+ 1 +1 is an integer.
-3 = 0 - 1 - 1- 1 is an integer.
0 is also an integer, you add ones zero times.
Then 5 examples of integers can be:
-10, -5, 0, 4, 18
Whole numbers: this set is the set of the positive integers and the zero.
Then 5 examples are:
0, 1, 4, 6, 173
Rational: All the numbers that can be written as a quotient of two integers.
5 examples are:
2/2, 7/3, 4/16, 100/10, -500/1048
Natural: Is the set of the positive integers.
5 examples are:
1, 4, 6, 120, 47
Irrational: Are numbers that have infinite digits after the decimal point, such that there is no pattern in those digits. The squareroots of prime numbers are always irrational numbers.
5 examples are:
pi, √2, √3, √5, √13
where pi = 3.141592653...
Is the relation between the perimeter of a circle and its diameter.
perimeter = diameter*pi.
Solve for x in this equation: 3/4 +|5-x| = 13/4
Step 1: Isolate the absolute value by subtracting
from both sides of the equation.
Answer: this is correct
Step-by-step explanation:
It says it’s correct
If AD : AB = 2 : 5, the coordinates of point F are . Point E has the coordinates (2.8, -3), and the coordinates of point D are .
Answer:
(4.4, -4.6) and (4.4, -1.4)
Step-by-step explanation:
Got a 100 on plato
Coordinates are usually denoted by (x,y) the x-value and y-value.
What is a Coordinate?This has to do with the system which makes use of numbers or coordinates in order to find the location of a point.
Please note that your question is incomplete so I gave you a general overview to get a better understanding of the concept.
Read more about coordinates here:
https://brainly.com/question/17206319
#SPJ2
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:
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]
Your friend says that he can get a dozen dvds from website for $90
The website probably sells pirated DVD
Answer:
He is wrong. The total cost would be $111
Step-by-step explanation:
Hope this helps!
What is 50% of 36?
o9
o16
o18
o34
Answer:
18
Step-by-step explanation:
Graph the line by plotting any two ordered pairs that satisfy the equation.
-6y = 9
Answer:
GRAPH IS IN THE PICTURE BELOW
Step-by-step explanation:
Define the is a way of expressi a relationship between x and y in set notation it is called an
Answer:
I think it’s an ordered pair?
Step-by-step explanation:
Advertising. I know I have to write about advertising. What do I know about advertising? I know you have to market a product to a specific audience.
Advertising is used to sell things like soft drinks or cars. I think I need to narrow down my choices of what to advertise Advertisements can be written,
heard, or seen. Should I have a visual advertisement on a new brand of energy drink? Which prewriting strategy is shown above? (4 points)
• Brainstorming
O Freewriting
O Clustering
Journalist Questions
Answer:
i think brainstorming
Step-by-step explanation:
Which inequality is true?
–1.5 > –0.5
Negative one-half
–2.5 < –2
Negative 1 and one-half
Answer:
-2.5 < -2
Step-by-step explanation:
-3, -2.5, -2,...,0,1 ,2, 3, ...
Answer: the answer is -2.5 =2 1/2, -0.5 <0, -2.5 <-2 im probably wrong but oh well...
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
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
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)
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 $408.00?
Answer:
17 hours
Explanation:
Which expression is equivalent to −78−(−34)
Answer:
-44
Step-by-step explanation:
(M1219Q3SP) Um aplicativo de transporte de passageiros cobra uma taxa de R$ 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 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 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)
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:
Write a story about temperatures that this expression could represent: ½ + (-¾)
Answer:
boom
Step-by-step explanation:
Answer:
so when your in the avatar state it is below zero, so you have to wear warm cloths
Step-by-step explanation:
Lots of points! Will give brainliest!
Answer:
Step-by-step explanation:
5