Answer:
1)
the mean rate of return is 17 %
the standard deviation of return is 17.06055
2)
the probability that Marvin's portfolio will make at least 20% over the next 12 months is 0.4325
Step-by-step explanation:
Given the data in the question;
1)
For the portfolio, the mean return and standard deviation are computed as follows;
Mean = Return = 0.65 × 10 + 0.35 × 30
= 6.5 + 10.5
= 17 %
Therefore, the mean rate of return is 17 %
Standard deviation will be;
σp = √( 0.65² × 15² + 0.35² × 40² )
= √( 0.4225 × 225 + 0.1225 × 1600 )
= √( 95.0625 + 196 )
= √291.0625
= 17.06055
Therefore, the standard deviation of return is 17.06055
2)
probability that Marvin's portfolio will make at least 20% over the next 12 months.
P( X > 20 )
we convert to a standard normal variable;
Z = [tex]\frac{20-17}{17.06055}[/tex] )
Z = 0.17
from z table, p-value is;
p( X < 20 ) = 0.5675
P( X > 20 ) 1 - 0.5675 = 0.4325
Therefore, the probability that Marvin's portfolio will make at least 20% over the next 12 months is 0.4325
1
2
cm does it
How many cubes with side lengths of
take to fill the prism?
1 cm
2 cm
1
2 - cm
2
cubes
Answer:
please ask a question properly i dont even know what you mean
20% of what number is 30
Answer:
150
Step-by-step explanation:
20 percent of 150 is 30.
To check the answer... 150 times 0.2 is 30.
Answer:
150
20 percent of what number equals 30; Answer: 150.
Step-by-step explanation:
20% of what is 30?
Written using the formula: X = 30 ÷ 20%
Convert the percent to a decimal.
20% ÷ 100 = 0.2.
X = 30 ÷ 0.2.
X = 150.
So 20% of 150 is 30.
PRETTY PLEASE HELP!! ILL GIVE BRAINLIEST! it’s due tonight :(
Answer:
a = 8 m
Step-by-step explanation:
Since, given is an isosceles right triangle.
So, by Pythagoras theorem:
[tex] {a}^{2} + {a}^{2} = {(8 \sqrt{2} )}^{2} \\ \\ 2 {a}^{2} = 128 \\ \\ {a}^{2} = \frac{128}{2} \\ \\ {a}^{2} = 64 \\ \\ a = \sqrt{64} \\ \\ a = 8 \: m[/tex]
24*8+4(4-2)22+3*7-222
Answer:
hello mate..how dy a?
Step-by-step explanation:
answer is -67
Which graph shows a function where f(2) = 4?
Answer:
download photo math will help you and show you the steps
PLEASE HELP 55 POINTS
Answer:
Blue square = x²
Orange square = 6x
Yellow square = 4x
White square = 24
Which data set has a median of 15?
18, 9, 19, 16, 6, 20.13
09, 17, 13, 15, 16, 8, 12
18, 15, 11, 14, 19, 15, 6
O 7, 16, 14, 16, 11, 7, 17
Help please.
Median is the middle value.
Each set has 7 numbers so put the numbers in order from smallest to largest. The median would be the 4th number in the sets.
Only 2 sets have the number 15 in them so those are the only two you need to look at.
The 3rd choice is the correct answer.
When it comes to reimbursement packages, company A offers $175 plus
$0.55 per mile. Company B offers $200 plus $0.45 per mile. What number of
miles driven would make the two reimbursement packages equal?
O A. 225
B. 245
O c. 250
O D. 305
Sam sees this newspaper headline.
Gas prices to rise by a fifth
Sam pays £38 per month for gas.
He wants to know how much he will pay after the price rise.
How much will Sam pay?
Select one:
O a. £45.60
O b. £7.60
O c. £43
O d. £30.40
Answer: B for sure
Step-by-step explanation:
Solve k-73 0.Graph the solution
The solution is
In a class of 6, there are 2 students who forgot their lunch.
If the teacher chooses 2 students, what is the probability that both of them forgot their lunch?
Answer:
1/8
Step-by-step explanation:
AB,AA,BB,BB,BB,BB,BB,BB,
*A IS THE students that forgot thier lunch
I need help with this one
1) Volume = 16.76
2) Volume = 6052.8
3) Volume = 51.31
5) Volume = 555.18
6) Volume = 622.53
HOPE IT HELPS !!!!Below is the graph of y=f(x).
Graph y=-f(x)
Answer:
Did you attached an image? I can't see it
Step-by-step explanation:
Points can be transformed to another set of points through reflections, rotation, translation, dilations etc. The graph of [tex]y = -f(x)[/tex] is added as an attachment.
Given that:
[tex]y = f(x)[/tex]
The graph of [tex]y = -f(x)[/tex] means that, f(x) is reflected across the x-axis to get -f(x) i.e. we negate the y-values of f(x)
From the attached graph of f(x), we have the following coordinate points:
[tex](-7,0), (-5,2), (-3,0), (0,-3)[/tex]
The corresponding points on -f(x) is:
[tex](-7,0), (-5,-2), (-3,0), (0,3)[/tex]
See attachment for the graph of [tex]y = -f(x)[/tex]
Read more about graphs and equations from:
https://brainly.com/question/17995541
Plz help me!!
I am timed!
Answer:
4 is the length
5 is the width
3 is the height
60 cubes
60m is the volume
derivative of cosx/x
Answer:
Step-by-step explanation:
I assume that you mean cos(x)/x, not cos(x/x).
Use the quotient rule.
Jenna receives $0.09 in royalties each time her new song is played on the radio and $0.24 in royalties for each digital download from a website. During the month of January, her song was played an average of 120 times per day and downloaded a total of 200 times per day. Approximately how much did Jenna receive in royalties? Note that January has 31 days.
○ $1, 823
○ $548
○ $ 59
○ $1,596.70
Reflection across y=3
The reflected coordinates of the triangle along y = 3 are X'(0, - 1), U'(3, - 1) and L'(3, - 5).
What are transformations?Two-dimensional figures can be transformed mathematically in order to travel about a plane or coordinate system.
Dilation: The preimage is scaled up or down to create the image.
Reflection: The picture is a preimage that has been reversed.
Rotation: Around a given point, the preimage is rotated to create the final image.
Translation: The image is translated and moved a fixed amount from the preimage.
Given, a triangle is reflected along y = 3.
First, the coordinates (x, y) of the triangle are X(0, 5), U(-3, 5) and L(-3, 1).
We know reflected along the y-axis is (-x, y) so reflection along y = 3 is
(-x, y - 2×3).
∴ X'(0, - 1), U'(3, - 1) and L'(3, - 5).
learn more about reflection here :
https://brainly.com/question/15487308
#SPJ2
Find the 12" term of the arithmetic sequence whose common difference is d=8 and whose first term is a = -2.
Can someone please help me?
Answer:
86.
Step-by-step explanation:
nth term = a1 + d(n - 1) so here we have:
12the term = -2 + 8( 12 - 1)
= -2 + 88
= 86.
Triangle Inequalities part 2 help please
Answer:
The perimeter can not be 26 inches
Step-by-step explanation:
Given
[tex]Side\ 1 =19[/tex]
[tex]Side\ 2 =16[/tex]
Required
Is a perimeter of 26 possible?
First, calculate the possible side 3
[tex]Side\ 3 = Perimeter - Side\ 1 - Side\ 2[/tex]
[tex]Side\ 3 = 26 - 16 - 19[/tex]
[tex]Side\ 3 = -9[/tex]
The side length can not be negative.
So, the perimeter can not 26 inches
2/17
87%
Find the volume of this cube.
5 cm
Type here to search
O
BI
III
A
3
Answer:
Volume of cube = 125 cm³
Step-by-step explanation:
Given:
Side of cube = 5 cm
Find:
Volume of cube
Computation:
Volume of cube = side³
Volume of cube = 5³
Volume of cube = 125 cm³
Ok so I have this problem, 12x+24=6x+3. WHAT DO I DO IF THE X HAS DIFFERENT NUMBERS. Oh and for 5-2x=2x-5 what do i do if ones a negative and ones a positive. Im trying to find the answer and if its 1 solution, no solution, or infinite solutions. Im sure people on here can reply quicker then my math teacher.
Answer: one solution; that solution is x = -7/2 which is the same as x = -3.5
====================================================
Work Shown:
The idea is to get all the x terms to one side, and the other stuff to the other side. We follow PEMDAS in reverse to help isolate x
12x+24 = 6x+3
12x+24-24 = 6x+3-24 .... subtract 24 from both sides
12x = 6x-21
12x-6x = 6x-21-6x ...... subtract 6x from both sides
6x = -21 ...... now the x terms are all on one side
6x/6 = -21/6 ...... dividing both sides by 6
x = -21/6
x = (-7*3)/(2*3)
x = -7/2
x = -3.5
This is the only solution. Whenever we have different coefficients for the x terms like this, we can see right off the bat we have exactly one solution. Consider graphing y = 12x+24 and y = 6x+3. The two lines will intersect at the point (x,y) where the x coordinate is the solution to the original equation. There is only one point of intersection which corresponds to exactly one solution.
The thing to notice about y = 12x+24 and y = 6x+3 is that the slopes are not the same, so the lines aren't parallel. Parallel lines always have equal slopes but different y intercepts. If your teacher gave you 12x+24 = 12x+3, then the two lines to graph would be y = 12x+24 and y = 12x+3. At this point, we would get two parallel lines that don't intersect, and therefore we wouldn't get any solutions here.
Question 5 (5 points)
(06.02 LC)
A scatter plot is shown:
Which graph best represents the line of best fit for this scatter plot?
Answer:
um i cant see the answer choices
Step-by-step explanation:
Answer:
it is not clear
Step-by-step explanation:
it is not clear
What are some words that we can use to represent a positive or negative integer?
Answer:
Profit, increase, and income are all examples of words that mean positive. A negative number is a number that is less than zero. It is always written with a - symbol in front of it. A loss is written with a negative number
Hope this helps
Find the area of the figure shown. Can someone help me please
Answer:
180 cm^2
Step-by-step explanation:
(8 x 15)/2 = 60 cm^2
(16 x 15)/ 2 = 120 cm^2
120 + 60 = 180 cm^2
Henry wrote 4z2 - 22 as
4. Are 4z2 – 22 and 4 equivalent expressions?
Explain.
The ratio of male students to female students in a class is 5:4. If the number of male students in the class is
25, predict the number of female students?
Answer:
The answer is 20
Step-by-step explanation:
In ratio what you do one side you do on the other side 5:4=25:20
5×5=25
4×5=20
PLEASEEEEEEEEEEEEEEEEEEEEE HELP MEEEEEEEEEEEEEEEEEEEEEEEEEE
Select the correct answer from each drop-down menu.
If the radius of a circle is 3.5 Inches, Its diameter is
Inches and its approximate area is
square Inches.
Answer:
Diameter = 7 inches
Area = 38.48 in²
Step-by-step explanation:
Diameter = 3.5 x 2 = 7 inches
Area = 3.5² x π = 38.48 in²
3). What is the area of a rectangular window measuring 36 inches across 25 points
and 60 inches tall? *
To find the area of a rectangle, just multiply the dimensions.
36
x60
00
360
1800
2160
The area of the rectangle is 2,160 in sq
---
hope it helps
I hope you see it plz 20 minutes left i need answers yall help me plz
Answer:
-6,-2
Step-by-step explanation:
you just have to look i think its right