Answer:
$34.38
Step-by-step explanation:
Y: A random variable that indicates the amount of money that the seller will receive.
p=2,50$
if x=0 → y=0.2,50=0$
if x=5 → y=5.2,50 = 12,5 $
if x=10 → y=10.2,50= 25$
if x=15 → y=15.2,50= 37,5$
if x=20 → y=20.2,50= 50 $
if x=25 → y=25.2,50= 62,5$
Y= { 0$ ; 12,5$ ; 25$ ; 37,5$ ; 50$ ; 62,5$ }
E(Y)= ∑Y.P(Y)
= 0.P(0)+12,5.P(12,5)+ 25.P(25)+ 37,5.P(37,5)+ 50.P(50)+ 62,5.P(62,5)
= 0.0,01+ 12,5.0,15+ 25.0,25+ 37,5.0,3+ 50.0,25+ 62,5.0,04
= 0 + 1,875 + 6,25 + 11,25 + 12,5 + 2,5
= 34,38$ expected value of the amount of money the seller receives.
Please help me. I need a step by step explanation.
Answer:
u can make me branliyest then i will help u
Step-by-step explanation:
Answer:
Answer for the first part: x = 0 so f(x) = 4
Answer for the second part: f(-2) = 2
Step-by-step explanation:
In order to solve the first prat of the problem you will just have to find a point on the function that has a y coridnate of 4, and the x cordinate of the exactly the same point will be the answer to your question. So in our case there is only one point like that and it (0,4). So that means the value of x for whcih f(x) = 4 is x = 0.
Now in order to answer the second part of this problem you will just have to find on a function with the x coridnate being -2, and the y cordinate of the exactly the same point will be the answer. In our case there is only one point liket aht and it is the point (-2,2). So that means taht the answer to the second part of the problem is f(-2) = 2.
rewrite in simplest terms −6(−0.8w−0.8)+3(−0.9w−0.3)
Answer:
2.1w + 3.9
Step-by-step explanation:
[tex] \frac{3 {c}^{3}d }{9c {d}^{ - 1} } [/tex]
I dont really understand how to do this fully. I just need to simplify it.
the school band wants to make 1000 dollars at the annual car wash, if they charge 15 dollars per car, how many cars should the band wash
what is the original price when the discount is 25% and the sale price is $40
Answer:
the original price was $53.33
Step-by-step explanation:
$x ---- 100%
$40 ------- 75% (this is because 25% of it's just 75% of the actual price)
[tex]75\cdot x = 100\cdot 40\\\\75x = 4000\\\\x=53.33[/tex]
===============================================
Work Shown:
x = original price
25% = 25/100 = 0.25
25% of x = 0.25x = discount, or amount saved
final price = (original price) - (discount)
final price = (x) - (0.25x)
final price = 0.75x
0.75x = 40
x = 40/0.75
x = 53.333333
x = 53.33
The original price is $53.33
The discount, or amount saved, is 0.25*x = 0.25*53.33 = 13.3325 = 13.33 dollars.
This means the sale price is 53.33 - 13.33 = 40
We can also see this through computing 0.75*x = 0.75*53.33 = 39.9975 = 40, which matches with the given sale price.
Note how I'm rounding to the nearest penny when needed.
is this a function hmm
Complete the proof.
help pls
Answer:
vertical, transitive, definition
Step-by-step explanation:
1 and 3 are vertical, as their opposite of each other
transitive means like if a = b and a =c then b = c
and a congruent to b means measure of angle a = measure of angle b
btw sugawara is cool
Please someone help me
Answer:
a) the height ...................Im not sure though .....................................
Step-by-step explanation:
.............................................
Michelle bought a computer that was 25% off the regular price of $980. If a 6% sales tax was added to the cost of the computer, what was the total price Michelle paid for the computer? A. $735.00 B. $779.10 C. $793.80 D. $1,298.50
Answer:
It fairly simple the answer is B
Ji Sunn spent $24 at the local farmer’s market. She bought apples that cost $4 per pound and raspberries that cost $6 per pound. Which equation can be used to represent the amount of raspberries, r, in terms of apples, a?
r = 4 minus two-thirds a
r = 4 + two-thirds a
r = 6 minus three-halves a
r = 6 + three-halves aThe formula for electrical power is P = I V. Which is the equivalent equation solved for i?
plz helpppppppppppp me asap
Answer:
x = 11, CD = 74, DE = 74, and CE = 37
Step-by-step explanation:
9x-25 = 6x+8
3x - 25 = 8
3x = 33
x = 11
CD = 9x - 25 = 99 - 25 = 74
DE = 6x+8 = 66 + 8 = 74
CE = 10x - 73 = 110 - 73 = 37
help please !! Given sin theta= 2/5
and 0°
Answer:
C
Step-by-step explanation:
sinθ=[tex]\frac{2}{5}[/tex]
θ=sin⁻¹ ( [tex]\frac{2}{5}[/tex] )
θ=23.57817848
2θ=47.15635696
sin2θ=sin(47.15635696)=0.7332121112°≈ ((4[tex]\sqrt{21}[/tex])/25)
20098765432 plus 34567890
Answer: 20133333322
Step-by-step explanation: I just did it thx
Please answer correctly !!!!!!!! Will mark Brianliest !!!!!!! And show your work !!!!!!!!!!!!!!!!!
Answer:
1.
Step-by-step explanation:
90+8x+12x=180
20x=90
x=4.5
Convert 60 inches to feet. There are 12 inches in a foot
Answer:
60/12= 5
5 feet
Answer:
5 feet
Step-by-step explanation:
Divide the length value (inches) by 12.
What is the surface area?
Milan is riding on a bike course that is 40 miles long so far he has ridden 22 miles of the course what percentage of the course has Milan ridden so far
Answer:
55%
Step-by-step explanation:
Answer:
its yo mama
Step-by-step explanation:
You are trapped in a concrete room with no doors or escape methods of any kind. And a table and a mirror is all you have. How do you escape?
Answer:
Through the mirrror try breaking the mirror with the table, touch the mirror if u seen green people can see u through the other side but if it doesnt find a diff way.
Step-by-step explanation:
Please answer 5 x (1/25)
Answer:
5/25 or simplified 1/5
Step-by-step explanation:
Answer:0.2
Step-by-step explanation:
Amy glued purple ribbon around the edge of her circular mirror she used 63 inches of ribbon this was just enough to go once around the mirror what is the approximate diameter of her mirror
Answer:
20in
Step-by-step explanation:
Answer: 20 inches
Step-by-step explanation:
Thissss answerrrrrrrrrrrrrrrrrrr
4^3 + (-2) ^4 = ?
evaluate?
Answer:
80
Step-by-step explanation:
PEMDAS- do exponents first here, simplifying that to 64+16, add those to get 80.
HELP IM BEGGING QUICKKKKKKKK
what is n in the equation 2(2n + 3)
Answer:
n=-1.5 or -3/2
Step-by-step explanation:
4n+6
4n=-6
n=-1.5 or -3/2
(12) Find the value of x. The diagram is not to scale.
Answer:
c = 64
Step-by-step explanation:
The population of a town is 2500 and is decreasing at a rate of 3.5% per year. Use an exponent function to find the population of the town after 5 years
Answer:
2099
Step-by-step explanation:
The formula for Exponential Decrease is given as:
P(t) = Po × e ^-rt
Where
r = Decrease rate = 3.5% = 0.035
t = time in years = 5 years
Po = Initial population = 2500
P(t) = Current Population after t years
Hence:
P(t) = 2500 × e^ -(5 × 0.035)
P(t) = 2500 × e^-0.175
P(t) = 2098.6425519
Approximately = 2099
The population of the town after 5 years = 2099
Write an equation and solve for x.
That's the final Answer, and don't worry about the answer in point form. I worked it out correctly. All steps followed;
angles in a triangle add up to 180°
8-4x+5y
When X=-2 y=6
Answer:
46
Step-by-step explanation:
=8-4x+5y
=8+8+30
=46
Carlotta has a blue sweater, a red sweater, a pink sweater, and a white sweater. She also has a pair of black pants
and a pair of brown pants. Which of the following shows how many different ways she can wear a sweater and pair of
pants together?
!!!!!!WILL MARK BRAINLIEST!!!!!!
Answer:
The answer is D.
Step-by-step explanation:
Viktor deposits $4,300 in an account that
carns 6% interest compounded monthly.
How much is in the account after five years?
Answer:
Viktor will have $5,800 in his account after 5 years
Step-by-step explanation:
Compound Interest
It happens when interest in the next period is then earned on the principal sum plus previously accumulated interest.
The formula is:
[tex]\displaystyle A=P\left(1+{\frac {r}{n}}\right)^{nt}[/tex]
Where:
A = final amount
P = initial principal balance
r = interest rate
n = number of times interest applied per time period
t = number of time periods elapsed
Viktor deposits P=$4,300 in an account that earns r=6% interest compounded monthly. Since there are 12 months in a year, n=12. The interest rate is converted to decimal: r=6/100=0.06. The final amount in the account after t=5 years is:
[tex]\displaystyle A=\$4,300\left(1+{\frac {0.06}{12}}\right)^{12*5}[/tex]
[tex]\displaystyle A=\$4,300\left(1.005}\right)^{60}[/tex]
Calculating:
A = $5,800
Viktor will have $5,800 in his account after 5 years