Answer and Step-by-step explanation:
A random variable is a variable having numerical values determined by the outcomes of the experiment. A random variable may have a finite number or an infinite sequence of values said to be discrete.
A random variable that describes the number of automobiles sold at a dealership would be discrete one day. Simultaneously, a random variable represents the weight of a person in a kilogram or pounds.
The probability distribution of discrete random variable x is each possible value of x and the probability that x takes amount in one trial of the experiment.
The probability distribution of the random variable contains the following properties:
1- Each probability must be between 0 and 1.
0 ≤ p(x) ≤ 1
2- The sum of all probabilities is equal to 1.
Ʃp(x) = 1
A continuous random variable may assume any value from data. The continuous random variable takes costs that vary within one or more intervals. And it has a cumulative distribution function (CDF) that is absolutely continuous.
The random variable has an infinite number of possible values, which have zero probability. The range of this type of discount can have a nonzero chance.
The probability distribution of the random variable is described by probability density, where the probability can be calculated by taking the area under the curve.
The sum of two numbers is 18. Two less than four times the smaller number is equal to the larger number x. Find the larger number. (Enter an exact number.)
Answer:
14
Step-by-step explanation:
x+y=18
x is the larger number
4y-2=x
(4y-2)+y=18
5y-2=18
y=4
18-4=14
the larger number is 14
Help !!!!!!!!!!!!!!!!!!!!!!
Answer:
D. No function.
Step-by-step explanation:
What other parts must be equal?
Answer:
Option C GH and JK
Step-by-step explanation:
A S A means angle side angle where the side is subtended in-between the 2 angles
Topic: Similarity and congruency
If you like to venture further, feel free to check out my insta (learntionary). It would be best if you could give it a follow. I'll be constantly posting math tips and notes! Thanks!
Using the algebraic expression 4n + 6, what is the greatest whole-number value that will give you a result less than 100?
Answer:
23
Step-by-step explanation:
Allow 4n+6=100
∴4n=94
∴n=23.5
If 23.5 gives you 100 exactly, the greatest whole number that'll give you a result less than 100 is 23.
Please help me. I need help on this question.
While negotiating to have a new facility built in Sheboygan, Wisconsin, a company promises to hire 700 workers initially, and then hire an additional 50 workers every four months. Write a linear equation that describes the number of employees (y) in terms of
the number of years after the initial hires are made (x).
What is the correct equation?
Answer:
y= 700 + 150x
Step-by-step explanation:
Since they hire 50 employees every 4 months, that's 150 new employees per year, plus the initial 700. So, you multiply 150 by the number of years, add 700 to that, and it equals y.
Please hurry!! Thanks
Answer:
angle 1, angle 3, and angle 8.
Answer C, D Please help will give brainliest.
Answer:
I am not sure what to do you have any pictures
Step-by-step explanation:
Ken has an investment account which compounds interest continuously at a rate of 3.4%. After 4 years, he has $4400 in the account. How much money did he initially place in the account? Round your answer to the nearest dollar. Do NOT round until you have calculated the final answer.
Answer:
$6617
Step-by-step explanation:
Use the formula for calculating compound interest A=P0ert where A is the unknown, P0=4400, r=0.034, and t=12. Substitute the values into the formula and simplify.
A=4400e0.034⋅12
A=4400e0.408
A=4400(1.503...)
A=6616.75
After 12 years, there will be A≈6617 in the account, rounded to the nearest dollar.
Answer:
$3841
Solve the formula for calculating compound interest
a=Pe rt for
Use the graph to find the value of f(45).
A) 5
B) 10
C) 20
D) 35
Answer:
I'm not sure if this helps or not but the value of 45 is 45 if you're talkin about the factors of 45 its 1 3 5 9 15 45
If you could change the instrument you play would you or wouldn't you? Tell me why.
PLZ ANSWER I'LL GIVE BRAINLIEST!
Answer:
No, because i wouldn't know how to play it, and you'd get frustrated because you cant play it
Step-by-step explanation:
Answer:
yes because i'm not very good at it. the other instrument i have started to play
There are 125 members in the school
marching band. The band wants to raise
$25.000 for a trip to a national
competition. The school agreed to
contnbute S5 000 towards the trip. Which
inequality shows the amount of money
that each band member should raise
HELP PLEASEEEE I NEEED I EQUATION
Answer:
125x + 5,000 > 25,000
I need this by 11:21 please help
Answer:
[tex]\frac{-2+i}{-4-5i} = \frac{3}{41}-i\frac{14}{41}[/tex]
Step-by-step explanation:
[tex]\frac{-2+i}{-4-5i}[/tex]
Apply complex arithmetic rule: [tex]\frac{a + bi}{c + di} = \frac{(c-di) (a + bi)}{(c-di) (c + di)} =\frac{(ac+bd)+(bc-ad)i}{c^2+d^2}[/tex]
[tex]a=-2,b=1, c=-4,d=-5[/tex]
[tex]=\frac{\left(-2\left(-4\right)+1\cdot \left(-5\right)\right)+\left(1\cdot \left(-4\right)-\left(-2\right)\left(-5\right)\right)i}{\left(-4\right)^2+\left(-5\right)^2}[/tex]
Refine:
[tex]=\frac{3-14i}{41}[/tex]
Rewrite [tex]\frac{3-14i}{41}[/tex] in standard complex form: [tex]\frac{3}{41} - \frac{14}{41}i[/tex]
Final answer: [tex]\frac{3}{41} - \frac{14}{41}i[/tex]
Hope I helped! If so, may I get Brainliest and a Thanks?
Thank you, Have a good one! =)
Answer:
3/41=14i/41
Step-by-step explanation:
(9a^2 + 7a + 8) - (2a^2 + 5a + 1)
Answer: 7a^2+2a+7
Step-by-step explanation:Distribute the Negative Sign:
=9a2+7a+8+−1(2a2+5a+1)
=9a2+7a+8+−1(2a2)+−1(5a)+(−1)(1)
=9a2+7a+8+−2a2+−5a+−1
Combine Like Terms:
=9a2+7a+8+−2a2+−5a+−1
=(9a2+−2a2)+(7a+−5a)+(8+−1)
=7a2+2a+7
if a car travels 55 miles per hour how far will it travel in half an hour
Answer:
27.5
Step-by-step explanation:
Theo vegetable garden
Answer:
The area of the garden is 1600
Step-by-step explanation:
BTW your answer is incomplete but if your are asking Theo's vegetable garden has an area of 40 square feet. what is the area, in square feet, of the pat of the garden that is planted with carrots? Then it is 1600! Plz Mark Brainliest Thanks!
y = -2x + 1 3x - 2y = 5
Answer:
x=1, y=-1. Use a system of equations rather than substitution.
A teacher will select 7 students in a class of 10 to participate in a social experiment. How many different groups are possible?
Answer:
the answer is 7/10=0.70
Answer:
7 gropus thats how manh
Amber got demoted, and her hourly rate decreased from $10.25 to $9. What is the percent
decrease?
Answer:
9.3275
Step-by-step explanation:
Answer:
The percent decrease is 12.20%
Step-by-step explanation:
$10.25 - $9 / $10.25 * 100% = 12.19512195121951 = 12.20%
An object is moving at a speed of 230 feet per week. Express this speed in inches per
minute. Round your answer to the nearest hundredth.
Answer:
Step-by-step explanation:
0.27 inches per minute....
An object is moving at a speed of 230 feet per week. This speed in inches per minute will be 0.27.
We know ,
1 feet = 12 inches and
1 week= 7days = 24×7 hours = 24×7×60 min.
= 10080 min.
Now, we just need to be careful with our multiplication and division. So we are going to have 230 times 12 on top divided by 24 times 7 times 60 i.e., 10,080 on bottom.
230 feet per week in inches per min = 230×12/10,080.
After evaluating and rounding up to 2 decimal places or the hundredth place , we will get our answer i.e., 0.27 inches/min.
To learn more about speed in inches per minute
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Which phrase correctly represents the algebraic expression 3t?
A) The sum of three and a number.
B) The product of three and a number.
C) The quotient of three and a number.
D) The difference of three and a number.
Answer:
b
Step-by-step explanation:
3t is also represented as 3(t)
which is multyplication
theirfor the product
Answer:
the answer is b
Step-by-step explanation:
2400 people attended a football game. 1728 of the people attending supported the home team, while 672 supported the visiting team. What percentage of people attending supported the home team?
Answer:
Percentage= 72%
Step-by-step explanation:
Giving the following information:
Total population= 2,400
People supporting the local team= 1,728
To calculate the percentage of people supporting the local team, we need to use the following formula:
Percentage= (people supporting / total population)*100
Percentage= (1,728/2,400)*100
Percentage= 72%
Which of the following defines the ratio of pi
Answer:
The second option
Step-by-step explanation:
given an arithmetic progression -24, -19, -14, ..., state four consecutive terms in this progression which sum up to 74
A recipe calls for 1 cup of sugar and 5 cups of water how many sugar is used per cup of water
Answer: 0.2
Step-by-step explanation: 1 divided by 5 = 0.2
another way to think of this is 5 x 2 = 10 = 5 x 0.2 = 1
Answer: 0.2
Step-by-step explanation: 1 divided by 5 = 0.2
5 x 2 = 10 5 x 0.2 = 1
simplify
3/4 - 4x + 1/2x - 1/2 + 1/2x
Answer:
x=4
Step-by-step explanation:
Answer:
1/4 - 3x
Step-by-step explanation:
Combine like terms
-4x + 1/2x + 1/2x = -3x
3/4 - 1/2 = 1/4
Now put it together
1/4 - 3x
3/45/6 simply this complex fraction
Answer:
1/15/2
Step-by-step explanation:
Divide all the numbers by 3 (the lowest common denominator)
Answer:
90
Step-by-step explanation:
3/45×1/6=3/270=90
elephant sanctuary contains adult and baby elephants the ratio of adult elephants to baby elephants is 5 find and interpret the value of the ratio
2. Find the slope of the line graphed below.
10
9
8
7
6
5
4
3
2
1
2 3 4 5 6 7 8 9 10
3 4 5 6
Step-by-step explanation:
y+6=-2(x-4)
if it is wrong i am sorry
Angie completes 80% of her homework problems before basketball practice. She was assigned 30 problems total. How many problems were completed before basketball practice?
23
24
25
26
Answer:
24 questions
Step-by-step explanation:
you would make the percentage a decimal and times that by how many problems.
Answer:
24 problems
Step-by-step explanation:
I like to do it like this: I find out what 10 percent is, so I divide it by 10. 30/10=3. 10 percent plus 10 percent is 20 percent. That's 6. 100 percent minus 20 is 80 percent. 30 - 6 is 24. Hope this helps.
What is important to know about shortened URLs?
What else should you check for in a message? Give two examples. HELP MEEEEE
Answer:
is the rise of mobile smartphones , texting ,internet