Answer: $5,040 & $5,085
Step-by-step explanation:
The expected value of the Computer Co. stock is $5,040, and the expected value of the US Treasury bond is $5,085
The expected value of both the stocks Computer Co. and US Treasury bond is $5,062.5.
What is the weighted average?When the average is not of any individual rather it is an average of two or more groups or sets it is called a weighted average.
To obtain the weighted average we multiply no. of individuals by their averages and sum the next group in the previous procedure and divide them by the total no. of individuals.
The expected value is the weighted average also known as the mean.
Given, The expected value of the Computer Co. stock is $ 5,040, and the expected value of the US Treasury bond is $ 5,085.
Therefore the expected value of both stocks is,
= (5040 + 5085)/2.
= $5,062.5
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Sin x =.3, what is cos x =
Answer:
If what you're asking is what is the cosine of 3 is 0.999986292247
Step-by-step explanation:
calculator
A motorist travels 90 miles at a rate of 20 miles per hour. If he returns the same distance at a rate of 40 miles per hour, what is the average speed for the entire trip, in miles per hour? (Pls explain throughly with your answer)
Answer:
80/3
Step-by-step explanation:
same distance is covered at different speed , avg speed= 2ab/a+b
= 2*20*40/60
= 80/3
Answer:
[tex]\frac{80}{3}\text{ mph}[/tex]
Step-by-step explanation:
We can use the formula [tex]d=rt[/tex] (distance = rate * time) to solve this problem.
If the motorist is travelling 90 miles to and back on a trip, he has travelled [tex]90+90=180[/tex] miles total. This represents [tex]d[/tex] in our formula.
Now we need to find the total time.
On the first trip, it's given that the motorist travels at a rate of 20 mph. Therefore, the time this trip took to travel 90 miles is:
[tex]90=20t,\\t=\frac{90}{20}=\frac{9}{2}=4.5[/tex] hours
On the second trip back, he travels the same distance (90 miles) at a rate of 40 mph. Therefore, the time the trip took is:
[tex]90=40t,\\t=\frac{90}{40}=\frac{9}{4}=2.25[/tex] hours
Therefore, the total time is [tex]4.5+2.25=6.75[/tex] hours.
Now can calculate the average speed of the entire trip:
[tex]180=6.75r,\\r=\frac{180}{6.75}=\frac{180}{\frac{27}{4}}=180\cdot \frac{4}{27}=\boxed{\frac{80}{3}\text{ mph}}[/tex]
Question 6 1 pts
How much money can you afford for a loan if you know you are going to pay $80 each month for 19 years if the interest rate is measured at only 3%?
$125.6
that is the procedure above .
What are the coordinates A’ after 90 counterclockwise rotation about the origin.
Answer:
the above is the answer
hope this is helpful
Select the correct answer.
The Richter scale measures the magnitude, M, of an earthquake as a function of its intensity, I, and the intensity of a reference earthquake,
M= log (I/I)
.Which equation calculates the magnitude of an earthquake with an intensity 10,000 times that of the reference earthquake?
Answer:
[tex]M = \log(10000)[/tex]
Step-by-step explanation:
Given
[tex]M = \log(\frac{I}{I_o})[/tex]
[tex]I = 10000I_o[/tex] ---- intensity is 10000 times reference earthquake
Required
The resulting equation
We have:
[tex]M = \log(\frac{I}{I_o})[/tex]
Substitute the right values
[tex]M = \log(\frac{10000I_o}{I_o})[/tex]
[tex]M = \log(10000)[/tex]
The equation that calculates the magnitude of an earthquake with an intensity 10,000 times that of the reference earthquake is A. M = ㏒10000
Since the magnitude of an earthquake on the Richter sscale is M = ㏒(I/I₀) where
I = intensity of eartquake and I₀ = reference earthquake intensity.Since we require the magnitude when the intensity is 10,000 times the reference intensity, we have that I = 10000I₀.
Magnitude of earthquakeSo, substituting these into the equation for M, we have
M = ㏒(I/I₀)
M = ㏒(10000I₀./I₀)
M = ㏒10000
So, the equation that calculates the magnitude of an earthquake with an intensity 10,000 times that of the reference earthquake is A. M = ㏒10000
Learn more about magnitude of an earthquake here:
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-Ba+9=Q²a solve for a
Answer:
[tex]a= \frac{9}{B+Q^2}[/tex]
Step-by-step explanation:
Given;
-Ba+9=Q²a
To solve for "a", make "a" the subject of the formula.
First, collect similar terms together;
-Ba - Q²a = -9
multiply through by "-1" to remove the negative sign;
Ba + Q²a = 9
factor out a;
a(B + Q²) = 9
divide both sides of the equation by "(B + Q²) ";
[tex]\frac{a(B+Q^2)}{B+Q^2} = \frac{9}{B+Q^2} \\\\a = \frac{9}{B+Q^2}[/tex]
Therefore, the value of "a" in the given expression is [tex]\frac{9}{B+Q^2}[/tex]
in this statement underlined the conclusion twice, underlined the hypothesis once, determine the truth value of the statement, and write it inverse converse and contrapositive. two angly of a triangle are equal if it is an isosceles triangle.
Answer:
Step-by-step explanation:
A rectangle has a length of 12 mm and a width of 15 mm. Which statement best describes the change in the
A new rectangle was created by multiplying all of the perimeter of the new rectangle?
dimensions by a scale factor of Ş.
1
The new perimeter will be times the perimeter of
2
the original rectangle.
1
O The new perimeter will be times the perimeter of
3
15 mm
5 mm
the original rectangle.
4 mm
O The new perimeter will be 2 times the perimeter of
the original rectangle.
12 mm
O The new perimeter will be 3 times the perimeter of
the original rectangle.
Answer:
perimeter of original rectangle *1/3 = perimeter of new rectangle
Step-by-step explanation:
The rule for perimeter is multiply by the scale factor
perimeter of original rectangle * scale factor = perimeter of new rectangle
perimeter of original rectangle *1/3 = perimeter of new rectangle
can anyone solve it the picture is given below.
can you solve all this questions
can someone please help me this is hard
woah!!!
what's this bro
pls tell me the subject name then I will research
Answer:
subject.............
Step-by-step explanation:
name..................
How many centimeters in 3.7 kilometers
Answer: [tex]\displyastyle \Large \boldsymbol{} \\\\ 3,7 km=3700000cm[/tex]
Step-by-step explanation:
[tex]\displyastyle \Large \boldsymbol{1km=100m \ \ ; \ \ 1m=100cm} \\\\1km=1000\cdot 100=100000cm \\\\ 3,7 km=3700000cm[/tex]
The expected value of X, E(X) must never be less than zero. True or False.
Answer:
I think true
Step-by-step explanation:
like and mark brainlist
oval (S) and A, B permanent, straight line d
I think you have not write the whole question
i need the answer A S A P
Answer:
area of the triangle= 1/2×w×h
Answer:
12 cm^2
Step-by-step explanation:
Given,
Height ( h ) = 4 cm
Base ( b ) = 6 cm
To find : Ar ( triangle ) = ?
Formula : -
Ar ( right angled triangle ) = bh / 2
Ar ( right angled triangle )
= 4 x 6 / 2
= 4 x 3
= 12 cm^2
I need this on khan academy.
9514 1404 393
Answer:
A. (1 2/3, 4 2/3)
Step-by-step explanation:
If you graph the equations, you see the lines intersect at the solution point:
(x, y) = (1 2/3, 4 2/3)
Compute [tex]i+i^2+i^3+\cdots+i^{258}+i^{259}[/tex].
Answer:
-1
Step-by-step explanation:
Note that [tex]i+i^2+i^3+i^4 = i-1-i+1 = 0[/tex], and this means that every 4 terms, the terms cancel to 0. Therefore, by taking modulo 4, we only need to find [tex]i^{257}+i^{258}+i^{259} = i-1-i = -1[/tex] since $i$ has a cycle of 4.
9514 1404 393
Answer:
-1
Step-by-step explanation:
Alternate terms have a sum of zero:
i^n +i^(n+2) = (i^n)(1 +i^2) = (i^n)(1 -1) = 0
So, the sum to i^256 is zero, and i^257 +i^259 = 0. The value of the sum is then i^258 = i^(258 mod 4) = i^2 = -1
The given expression evaluates to -1.
How much must you add to -12 to get a number greater than 5? A A number less than -17 B A number less than 7 C A number between 7 and 17 D A number greater than 17
In general, how are the measures of central tendency and variability used to analyze a data distribution
Answer:
Central tendencies and variability are generally used to represent or describe/summarize a large data set into a single data
Step-by-step explanation:
Central tendency is the measurement used to determine the probability of a set of variables/dataset to cluster around their mean, mode, and median values.
Central tendencies and variability are generally used to represent or describe/summarize a large random data set into a single data. examples of variabilities are : variance, range and standard deviation.
Hari earns Rs 4300 per month. He spends 80% from his income. How much does he save in a year? please give answer in step by step explaination
Saving percentage=100-80=20%
Saving amount:-
[tex]\\ \sf\longmapsto 4300\times 20\%[/tex]
[tex]\\ \sf\longmapsto 4300\times \dfrac{20}{100}[/tex]
[tex]\\ \sf\longmapsto 43\times 20[/tex]
[tex]\\ \sf\longmapsto 860[/tex]
saving per year=Saving per month×12[tex]\\ \sf\longmapsto 12\times 860[/tex]
[tex]\\ \sf\longmapsto Rs10320[/tex]
Step-by-step explanation:
i think this will be help you
I really need help with this one
Step-by-step explanation:
here is the answer to your question
I need help with this
Answer: 13.5 Okay! Here's the method count the legs of the right triangle
The formula we'll use will be
A^2 + B^2 = C^2
In this case we're counting by twos
The base is 11 so we times it by itself =110
The leg is 8.5 so we going to times itself to make 72.25 add those together so 110+ 72.25 = 182.25 then we \|-----
182.25
Then you have got ur answer of 13.5
Step-by-step explanation:
The gradient of a straight line passes through points (6,0) and (0,q) is -3/2. Find the value of q
Answer:
Step-by-step explanation:
gradient is essentially the slope of a straight line.
Use (y2-y1)/(x2-x1):
(q-0)/(0-6) = -3/2
q = 9
please answer quickly!! and no links please!
Step-by-step explanation:
here are the answers for your problems
It is known that a
a) add 4 to both sides of the inequality
b) multiply each side of the inequality by 8
PLEASE HELP NEED ASAPPPP WILL GIVE BRAINLIEST TO FIRST CORRECT ANSWER
Answer:
the answer is B
Step-by-step explanation:
Multiplying or dividing both sides by a negative number reverses the inequality. This means < changes to >, and vice versa. For example, given that 5 < 8 we can multiply both sides by 6 to obtain 30 < 48 which is still true. −30 > −48, which is a true statement.
when solving inequalities with absolute values When solving an inequality: • you can add the same quantity to each side • you can subtract the same quantity from each side • you can multiply or divide each side by the same positive quantity If you multiply or divide each side by a negative quantity, the inequality symbol must be reversed.
Mr. Martin is giving a math test next period. The test, which is worth 100 points, has 29 problems. Each problem is
worth either 5 points or 2 points. Write a system of equations that can be used to find how many problems of each
point value are on the test.
Let x be the number of questions worth 5 points and let y be the number of questions worth 2 points.
O x + y = 29, 5x + 2y = 100
Ox+y = 100, 5x + 2y = 29
O 5x + y = 29, 2y + x = 100
O 2x + y = 100, 5y + x = 29
Answer:
x + y = 29, 5x + 2y = 100
Step-by-step explanation:
First, create an equation based on how there are 29 problems on the test.
x + y represents all of the questions on the test, so it should be set equal to 29.
The first equation is x + y = 29.
Now, create an equation based on how the test is worth 100 points.
5x will represent the points from the questions worth 5 points, and 2y will represent the points from the questions worth 2 points.
These terms will be added together, and set equal to 100.
The second equation is 5x + 2y = 100.
So, the system of equations is x + y = 29, 5x + 2y = 100
PLS HELP!
If f(x)= x+3/4 what is the equation for f–1(x)?
A) f–1(x) = 4(x + 3)
B) f–1(x) = 4x - 3
C) f–1(x) = 4(x - 3)
D) f–1(x) = 4x + 3
Answer:
f^-1(x) = 4x-3
Step-by-step explanation:
f(x) = (x+3)/4
y = (x+3)/4
Exchange x and y
x = (y+3)/4
Solve for y
4x = y+3
Subtract 3
4x-3 = y
The inverse
f^-1(x) = 4x-3
3/4 divided by 1/2 please hurry !!
Answer:
3/2 or 1.5
Step-by-step explanation:
(3/4) / (1/2) = (3/4) * (2/1)
= 6/4
= 3/2
It is given that,
→ 3/4 ÷ 1/2
We can divide the given values,
→ 3/4 ÷ 1/2
→ 3/4 × 2/1
→ 6/4
→ 3/2 (or) 1.5
Thus, 3/2 (or) 1.5 is the answer.
Look at the number 45,962. Write a new
number that has the digit 4 with a value 10 times
greater than the value of the 4 in 45,962. Explain how
you determined your new number.
I'm not sure about this one..
According to the Fundamental Theorem of Algebra, which polynomial function has exactly 8 roots?
PLS HELP IM TIMED
Answer:
Option (1)
Step-by-step explanation:
Fundamental theorem of Algebra states degree of the polynomial defines the number of roots of the polynomial.
8 roots means degree of the polynomial = 8
Option (1)
f(x) = (3x² - 4x - 5)(2x⁶- 5)
When we multiply (3x²) and (2x⁶),
(3x²)(2x⁶) = 6x⁸
Therefore, degree of the polynomial = 8
And number of roots = 8
Option (2)
f(x) = (3x⁴ + 2x)⁴
By solving the expression,
Leading term of the polynomial = (3x⁴)⁴
= 81x¹⁶
Therefore, degree of the polynomial = 16
And number of roots = 16
Option (3)
f(x) = (4x² - 7)³
Leading term of the polynomial = (4x²)³
= 64x⁶
Degree of the polynomial = 6
Number of roots = 6
Option (4)
f(x) = (6x⁸ - 4x⁵ - 1)(3x² - 4)
By simplifying the expression,
Leading term of the polynomial = (6x⁸)(3x²)
= 18x¹⁰
Degree of the polynomial = 10
Therefore, number of roots = 10
A store manager wishes to investigate whether there is a relationship between the type of promotion offered and the number of customers who spend more than $30 on a purchase. Data will be gathered and placed into the two-way table below.
Answer:
d
Step-by-step explanation:
i took the test
