time it takes to fly from City A to City B a. Is the distance a baseball travels in the air after being hit a discrete random variable, a continuous random variable, or not a random variable?
Answers
Complete question is;
Determine whether the random variable is discrete or continuous.
a. The time it takes to fly from City Upper A to City Upper B.
b. The time it takes for a light bulb to burn out.
c. The number of fish caught during a fishing tournament.
d. The number of textbook authors now sitting at a computer.
e. The distance a baseball travels in the air after being hit.
a. Is the time it takes to fly from City Upper A to City Upper B discrete or continuous? A. The random variable is discrete. B. The random variable is continuous.
Answer:
a) continuous random variable.
b) continuous random variable
c) discrete random variable
d) discrete random variable
e) continuous random variable
Step-by-step explanation:
A discrete variable is one where the value of the variable is gotten by counting the variables.
Meanwhile, a continuous variable is one where the value of the variable is gotten by measuring the variables.
For options a & b, the time taken is the variable that is measured. Thus, they are both continuous random variable.
Also, for option e, the distance traveled is the measured variable and thus it is also a continuous random variable.
In option c, the number of fishes can be counted. Also, for option d, the number of textbook authors can be counted. Thus, the values of the variables can be gotten by counting. . Therefore, they are both discrete random variable.
Related Questions
the diffrence of 54 and 32 mutlipted by the diffrence of 8 and 5
Answers
Answer:
66
Step-by-step explanation:
the difference of 54 and 32 is 54 - 32 = 22
the difference of 8 and 5 is 8 - 5 = 3
then
22 × 3 = 66
Need help asap! (50 points)
Answers
Answer:
8
Step-by-step explanation:
160×5%
\(\frac{160 * 5}{100}\) = 8
What is 3.2258 rounded to the nearest thousandth?
Answers
Answer:
3.3000
Step-by-step explanation:
hope this helps
may i get braineist pls?
Solve::::::::::::::::
\( \sf \: 3(y + 3) - 10 = 2y + 1\)
Answers
Solution:
3(y + 3) - 10 = 2y + 1
Let us first multiply 3 and (y + 3).or, 3y + 9 - 10 = 2y + 1
Now, transpose the value of 2y to the left hand side and 9 and -10 to the right hand side.or, 3y - 2y = 1 - 9 + 10
Do the addition and subtraction.or, y = 2
So, we have got the value of y.Verification:
LHS
= 3 (2 + 3) - 10
= 3 (5) - 10
= 15 - 10
= 5
RHS
= 2 (2) + 1
= 4 + 1
= 5
So, LHS = RHS [verified]
Answer:
y = 2
Hope you could understand.
If you have any query, feel free to ask.
Find an explicit function rule for the sequence a(1) = 13, a(n) =(n − 1
Answers
Answer:
The correct answer is "The term number, n"
Answer:
the term number, n
Step-by-step explanation:
expand and simplify (x - 2)^2
these are the options
2 + 4 + 4 2 − 4 2 − 4 + 4 2 + 4
Answers
Answer:
\(x^2-4x+4\)
Step-by-step explanation:
\((x - 2)^2\)
\((x - 2)(x - 2)\)
\(x(x-2)-2(x-2)\)
\(x^2-2x-2x+4\)
\(x^2-4x+4\)
Answer:
\({x}^{2} - 4x + 4 \\ \)
Step-by-step explanation:
\( {(x - 2)}^{2} \\ (x - 2)(x - 2) \\ x(x - 2) - 2(x - 2) \\ {x}^{2} - 2x - 2x + 4 \\ {x}^{2} - 4x + 4\)
hope this helps you
Answer this for me Step to step
Answers
Answer:
Step-by-step explanation:
I hope I have chosen the correct area as the shaded section...lol!
It costs the Fresh Air Fan Company (20x+1000) dollars to produce x ceiling fans. They sell
the fans for (300-2x) dollars each. How many fans should the company produce each month
to maximize their profit?
Answers
The company produce each month to maximize their profit be (50, 100000).
What is meant by maximize their profit?To ensure the best output and price levels are realized in order to maximize returns, business firms engage in the process of profit maximization. In order to achieve its profit objectives, the company modifies important variables including sale price, production costs, and output levels.
"Profit maximization" emphasizes the location of this critical point, or the optimal output at which your company is most profitable. An educational non-profit organization called Khan Academy states that "a corporation striving to maximize profit will produce the quantity where 'marginal cost' and 'marginal income' are equal to each other."
Let x be the number of ceiling fans
If the price per fan when you sell x fans exists (300 - 2x), then the amount received for selling x fans exists x(300 - 2x)
The cost for producing x fans is (20x + 100).
Profit = x(300 - 2x) - (20x + 100)
y = (1000 + 20x)(300 - 2x)
simplifying the equation, we get
y = 300000 - 2000x + 6000x - 40x²
y = -40x² + 4000x + 300000
simplifying the above equation, we get
y = -40(x² - 100x + 2500) + 100000
y = -40(x - 50)² + 100000
vertex: (50, 100000).
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Evaluate 1312e 4 Sov? 3x²x3 dx (Type an exact answer.)
Answers
We have to solve the integral:
\(\int ^4_03x^2e^{x3}dx\)We will apply a variable substitution in order to simplify the solution. We have a hint when we see that the derivative of x^3 is 3x^2, that is part of the factors.
\(\begin{gathered} u=x^3\Rightarrow du=(3x^2)dx \\ x=0\Rightarrow u=0^3=0 \\ x=4\Rightarrow u=4^3=64 \end{gathered}\)Then, we can write:
\(\int ^4_03x^2e^{x3}dx=\int ^4_0e^{x3}(3x^2)dx=\int ^{64}_0e^udu\)Then, we have a simpler integral to solve:
\(\int ^{64}_0e^udu=e^u+C=e^{64}-e^0=e^{64}-1\)The exact solution is e^64-1.
Find the inverse (Please show your work thank you) ↓
Answers
The inverse of the function j(x) = 1 + ∛( 2 + x ) is f⁻¹(x) = ( x - 1 )³ - 2.
What is the inverse of the given function?An inverse function is simply a function that undoes the original function.
Given the function in the question:
j(x) = 1 + ∛( 2 + x )
To solve for the inverse, start by replacing j(x) with y:
j(x) = 1 + ∛( 2 + x )
y = 1 + ∛( 2 + x )
Next, we solve for x in terms of y:
y - 1 = ∛( 2 + x )
( y - 1 )³ = ( ∛( 2 + x ) )³
( y - 1 )³ = 2 + x
( y - 1 )³ - 2 = x
x = ( y - 1 )³ - 2
Inter-change the variables
y = ( x - 1 )³ - 2
Replace y with f⁻¹(x) in the equation above:
f⁻¹(x) = ( x - 1 )³ - 2
Therefore, the inverse is f⁻¹(x) = ( x - 1 )³ - 2
Option d(x) = ( x - 1 )³ - 2 is the correct answer.
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Una sala de cine de New York vende las entradas para niños a 3 dólares y las de los adultos a 5 dólares. Si para ver una película pueden ingresar tanto niños como adultos y en un día
ingresan 345 espectadores, recaudando por concepto de venta de boletas 1365 dólares. Se
puede afirmar que el número de niños y adultos que ingresaron fue:
Answers
A la sala de cine ingresaron 180 niños y 165 adultos.
¿Cuántos niños y adultos ingresaron a una sala de cine?
De acuerdo con el enunciado, la sala de cine tiene capacidad para 345 espectadores y cobra 3 dólares por cada niño y 5 dólares por cada adulto. Asimismo, esta sala tiene un recaudo diario de 1365 dólares. La situación puede ser sintetizada en la siguiente ecuación algebraica:
3 · x + 5 · (345 - x) = 1365
Donde x es el número de niños que asistieron a la sala de cine.
Ahora despejamos la variable correspondiente mediante propiedades algebraicas:
3 · x + 1725 - 5 · x = 1365
1725 - 2 · x = 1365
2 · x = 1725 - 1365
2 · x = 360
x = 180
Ahora, el número de adultos es:
y = 345 - 180
y = 165
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a women earns 3500 per month and budgets 480 per month for food. What percent of her monthly income is spent on food?
Answers
Someone help me with this
Answers
a. Category with the greatest frequency is 20 - 24
b. 14 students
c. The percentage is 7%
What is frequency?Frequency is simply described as the number of times an event or observation happened in a given study or experiment that is carried out.
From the information given, we have that;
a. The category with the greatest frequency is the one with most words spelt, we have;
20 - 24
b. The number of students that spelt 35 - 39 words is traceable to
14 students
c. If the total number of students is 200
Then, the percent of students in the 35 - 39 category is;
14/200 × 100/1
Multiply the values
7%
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I need to find x for this problem, in a category of geometry, help please!
Answers
Answer:
17
Step-by-step explanation:
(7x)° + 61° = 180° (interior angle Postulate)
(7x)° = 180° - 61°
(7x)° =119°
7x = 119
\(x = \frac{119}{7} \\ \\ \huge \red{ \boxed{x = 17}}\)
What is AB? Geometry help please
Answers
Answer:
AB = 37 units.
Step-by-step explanation:
Solve for AB using the Pythagorean theorem:
c² = a² + b² (c being AB in this instance)
Plug in the values of the legs of the triangle:
c² = 12² + 35²
c² = 144 + 1225
c² = 1369
c = √1369
c = 37
Therefore, AB = 37.
How much water do you add:
To make 25% sugar syrup using 15g of sugar?
Answers
Answer:
amount of water required = 45 g
Step-by-step explanation:
Answer:
45g
Step-by-step explanation:
PLEASE HELP I WILL MARK YOUR ANSWER AS BRAINLIEST PLEASE BE CORRECT BEFORE ANSWERING
LOOK AT THE BOTTOM
Answers
9514 1404 393
Answer:
y = 2
Step-by-step explanation:
The figure must be flipped top-to-bottom, so the line of reflection must be a horizontal line. Point B must be reflected to itself, so it is on the line of reflection. That means the line of reflection is y = 2.
__
You can draw the line of reflection using any two points that have y-coordinates of 2, for example, (0, 2) and (2, 2).
find the largest prime factor of 6108
Answers
Answer:
509
Step-by-step explanation:
There are 4 prime factors of 6108
6108 ÷ 2 = 3054
3054 ÷ 2 = 1527
1527 ÷ 3 = 509
509 ÷ 509 = 1
8. The percentage of the moon's surface that is visible to someone on the Earth varies due to
the time since the previous full moon. The moon passes through a full cycle in 28 days. The
maximum percentage of the moon's surface that is visible from Earth is 50%. Find a function
for the percentage, P, of the surface that is visible as a function of the number of days, t,
since the previous full moon.
Answers
A functiοn fοr the percentage is P = 25cοs(π/14t) + 25.
What is a functiοn?In the case οf a functiοn frοm οne set tο the οther, each element οf X receives exactly οne element οf Y. The functiοn's dοmain and cοdοmain are respectively referred tο as the sets X and Y as a whοle. Functiοns were first used tο describe the idealized relatiοnship between twο varying quantities.
Here, we have
Given:
Tο find the percentage οf the full mοοn, we can write an equatiοn in the fοrm P = Acοs(Bt) + C
After 14 days, the percentage οf the mοοn is zerο
A = (max-min)/2 = 50/2 = 25
The periοd = 28 days
P = Acοs(BT = t) + c
B = 2π/periοd = 2π/28 = π/14
c = min + A = 0 + 25 = 25
We get,
P = 25cοs(π/14t) + 25,
Here, p is the percentage οf the mοοn visible cοmpared tο the previοus full mοοn.
Hence, a functiοn fοr the percentage is P = 25cοs(π/14t) + 25.
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N3Race GameIn the race game, the contestant is shown four prizes.they then have 45 seconds to matchthe correct prices to the correct prizes. After placing the prices, the contestants is able todetermine how many of their choices are correct but not which choices are correct. theycan use the remainder of their time to readjust.A) what is the probability that you would guess all four pricescorrectly in only one try?2) Is this an example of an independent or dependentprobability?
Answers
SOLUTION
Looking at this, we have a total of four prices.
When the first price is picked, the probability becomes
\(\frac{1}{4}\)After the first price is picked, we have 3 prices left. The probability of picking the second becomes
\(\frac{1}{3}\)Probability of picking the 3rd becomes
\(\frac{1}{2}\)Note that this is without replacement, hence the probability of picking the last becomes
\(\frac{1}{1}=1\)So the require probability becomes
\(\begin{gathered} \frac{1}{4}\times\frac{1}{3}\times\frac{1}{2}\times1 \\ =\frac{1}{24} \end{gathered}\)Hence the answer is
\(\frac{1}{24}\)It is a dependable probability because it is a probability without replacement, since the preceding event has an effect on the probability of the next event
Hence the answer is dependable probability
If you can provide the step-by-step process of this equation, and possible explain what's happening, I will award Braliniest. Thank you.
6x-3(-3x+3) = -3+4x
Answers
Answer:
Step-by-step explanation:
6x-3(-3x+3)=-3+4x
6x+3(3x-3)=-3+4x
6x+9x-9=-3+4x
15x-9=-3+4x
11x-9=-3
11x=6
x=6/11
WHAT IS THE NAME OF THIS FORMULA????
Answers
Answer:
Estimation and Confidence Intervals
Step-by-step explanation:
Just found it on a math website basically.
The perimeter of the triangle is the same as the perimeter of the square.
3x – 4
5x - 6
2x - 2
Calculate the area of the square.
Your answer
Answers
Answer:
add 4, 6 and 2
you will get 12
a aware is even with four sides so divide by 4
12/4 =3
area of square = sxs
3×3 = 9
math is so hard :’) and I need help:
Which equation matches this table?
X 0 3 9 11 13
Y 6 9 15 17 19
1. y = x + 5
2. y = x + 6
3. y = x + 3
4. y = x - 6
Answers
Answer:
The answer would be
2. y= x + 6
Answer: The answer would be
2. y= x + 6
Step-by-step explanation:
(2x + 25) y
(3x - 10)
solve to get the answers of the variables
Answers
Answer:
y = 65 degrees
Step-by-step explanation:
(this is what i remember from geometry at least so let me know if i got anything wrong)
2x+25 and 3x-10 are opposites which means they are equal to each other.
2x+25 = 3x-20 get the x values on the same side by subtracting 2 from both sides
25 = x-20 to get the x value alone add 20 to both sides
45 = x
now you can plug in x to either equation to find out what their degree is
2(45)+25 = 115 degrees
and since this equation and y are on the same line you can subtract 115 from 180 (a line is equal to 180 degrees) to find y
180-115 = 65 degrees
Each of the pairs of opposite angles made by two intersecting lines is called a vertical angle. The value of the variables x and y are 35 and 85, respectively.
What are vertical angles?Each of the pairs of opposite angles made by two intersecting lines is called a vertical angle.
The angle measuring (2x+25)° and (3x-10)° are vertical angles. Therefore, we can write,
(2x + 25) = (3x - 10)
2x + 25 = 3x - 10
25 + 10 = 3x - 2x
x = 35
Also, in the given image the angle measuring (2x + 25)° and y° are supplementary angles, therefore, we can write,
(2x + 25)° + y° = 180°
2x + 25 + y = 180°
Substitute the value of x,
2(35) + 25 + y = 180
70 + 25 + y = 180
95 + y = 180
y = 85°
Hence, the value of the variables x and y are 35 and 85, respectively.
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Please help me !!! I need help asap
Answers
After calculating The perimeter of rectangle is 46.52 in the given rectangle.
What is area of rectangle?
area of rectangle can be defined as the product of length and breadth.
Given ,
A rectangle has a length 20 5 /6 and
breadth = 2 3/7
The perimeter of rectangle = 2 (l+b)
length = (120 + 5 ) / 6 = 125/ 6
breadth = (14+3) / 7 = 17/7
perimeter = 2 (125/6 + 17/7 )
= 2 ( (125*7 + 17 * 6) / 42 )
= 2 (875+102) / 42
= 2 * 23.26
= 46.52
Hence, after calculating The perimeter of rectangle is 46.52 in the given rectangle.
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Write the expressions for (s + r)(x) and (s - r)(x) and evaluate (sr)(3) .Suppose that the functions r and s are defined for all real numbers x as follows r(x) = x + 1 s(x) = 3x - 3
Answers
ANSWER:
\(\begin{gathered} (s+r)(x)=4x-2 \\ (s-r)(x)=2x-4 \\ (s\cdot r)(3)=24 \end{gathered}\)STEP-BY-STEP EXPLANATION:
We have the following functions:
\(\begin{gathered} r\left(x\right)=x+1 \\ s\left(x\right)=3x-3 \end{gathered}\)We calculate each operation, just like this:
\(\begin{gathered} (s+r)(x)=3x-3+x+1=4x-2 \\ (s-r)(x)=3x-3-x-1=2x-4 \\ (s\cdot r)(3)=(3x-3)(x+1)=(3\cdot3-3)(3+1)=(9-3)(4)=(6)(4)=24 \end{gathered}\)iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiihhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhi
Answers
Answer:
ahfjajsjdjadkfjfjakskhsk
Select the correct answer.
What is this expression in simplest form?
1/2x^2-4x - 2/x
A. 4x-7/2x(x-2)
B. -4x+9/2x(x-2)
C. -1/2x(x-2)
D. -3x-8/2x(x-2)
Answers
Answer:a A. 4x-7/2x(x-2)
got it right on the test
Step-by-step explanation:
an=26-6n find the 5th term in the sequence
Answers
5th term of the sequence is -4
To find the 5th term in the sequence, we need to substitute n = 5 into the expression given
\(a_5\) = 26- 6( 5)
\(a_5\) = 26- 30
\(a_5\) = -4
The formula given, an = 26- 6n, represents an computation sequence with a common difference of-6.
This means that each term in the sequence is attained by obtain 6 from the former term.
It's important to note that the formula is written in general form, meaning that it can be used to find any term in the sequence by simply plugging in the matching value of n.
In this case, we were asked to find the 5th term, so we substituted n = 5 into the formula to get a5 = -4.
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