Step-by-step explanation:
so the infinite series is
a + ar + ar^2 + ar^3....
= a(1 + r + r^2 + r^3...)
= a(1 + r(1 + r + r^2 + r^3...))
ignore the a for a second
imagine it's 1
we call this sum S
S = 1 + r(1 + r + r^2 + r^3...)
S = 1 + rS
S - rS = 1
S(1 - r) = 1
S = 1/(1-r)
and the difference for that series is every term is multiplied by a
or S = a/(1-r)
Problem 2
Let A= [ 9 2 -22]
[ 0 -2 0 ]
[ 1 0 -4 ]
a) find the characteristic polynomial of A
b) Find the two eigenvalues of A
(c) Find a basis for the eigenspace corresponding to the smallest eigenvalue. (d) Find a basis for the eigenspace corresponding to the largest eigenvalue.
{-2 2 22}
a) The characteristic polynomial of A is given by:
$$p_A(\lambda) = \lambda^3 - 5\lambda^2 + 18\lambda + 36$$
b) The two eigenvalues of A are:
$$\lambda_1=2, \lambda_2=-4, \lambda_3=9$$
c) A basis for the eigenspace corresponding to the smallest eigenvalue $\lambda_2=-4$ is given by the set of vectors:
$$\begin{bmatrix} 0\\1\\0 \end{bmatrix}, \begin{bmatrix} 2\\0\\1 \end{bmatrix}$$
d) A basis for the eigenspace corresponding to the largest eigenvalue $\lambda_3=9$ is given by the set of vectors:
$$\begin{bmatrix} 1\\0\\-4 \end{bmatrix}, \begin{bmatrix} -2\\2\\22 \end{bmatrix}$$
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If someone tells you about an investment that had a return that averaged 25 percent per year, how risky is this investment likely to be?
If someone tells you about an investment that had a return that averaged 25% per year, this investment is likely to be: D. much riskier than most stocks.
What is risk tolerance?In Insurance, risk tolerance can be defined as the willingness of an individual or business organization to take a risk in business transactions and investments, in order to get a potentially positive reward (returns).
Generally speaking, the high risk that is associated with investments such as stocks, high-yield bonds, etc., is often perceived by investors to be worth the higher reward these investment would bring.
In this context, we can reasonably infer that a stock with reward (returns) that has an average of 25 percent per year is most likely to be riskier than most stocks.
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Complete Question:
If someone tells you about an investment that had a return that averaged 25% per year, how risky is this investment likely to be?
answer choices
Not very risky at all
About as risky as the average stock
About as risky as a savings account
Much riskier than most stocks
Anthony shines a beam of light on the surface of a solution of glycerol at a certain angle. if the angle of refraction is 38°, what is the angle of incidence? the index of refraction of glycerol is 1.47, while that of air is 1.00. a. 38° b. 45° c. 55° d. 65° e. 70°
Answer:
D) 65°
Step-by-step explanation:
Use Snell's Law
\(n_1\sin\theta_1=n_2\sin\theta_2\\\\1.00\sin\theta_1=1.47\sin38^\circ\\\\\sin\theta_1=1.47\sin38^\circ\\\\\theta_1=\sin^{-1}(1.47\sin38^\circ)\\\\\theta_1\approx64.83^\circ\)
Thus, the angle of incidence is D) 65°
Find the volume of the triangular pyramid to the nearest whole number.
Answer: 906 in^3.
Step-by-step explanation:
The volume of a triangular pyramid is the area of the base multiplied by the height divided by 3.
First, we can start by finding the area of the base.
The area of the base is equal to 19*13/2
= 123.5 in^2
Next, we plug in the formula.
So the volume = 123.5*22/3 in^3
= 905.666 repeated in ^3
Rounded to the nearest whole number is 906 in^3.
Check the picture below.
so the base of the pyramid is just a triangle with a base of 19 and an altitude of 13, and the pyramid has a height of 22.
\(\textit{volume of a pyramid}\\\\ V=\cfrac{Bh}{3}~~ \begin{cases} B=\stackrel{base}{area}\\ h=height\\[-0.5em] \hrulefill\\ B=\frac{1}{2}(19)(13)\\\\ h=22 \end{cases}\implies \begin{array}{llll} V=\cfrac{1}{3}\left[ \cfrac{1}{2}(19)(13) \right](22) \\\\\\ V=\cfrac{2717}{3}\implies V\approx 906~in^3 \end{array}\)
Fill The Blank! in general, if the sample size is large, adding an extremely large outlier to a data set will not substantially affect _____ .
In general, if the sample size is large, adding an extremely large outlier to a data set will not substantially affect the mean.
A very large outlier will typically not significantly change the mean of a data set if the sample size is large. However, adding an extremely large outlier to a data set with a small sample size can have a substantial effect on the mean.
This is because the mean is heavily influenced by the values of the individual data points, and an outlier can have a disproportionately large impact on the mean if the sample size is small.
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Identify the expressions and the value equivalent to 4 times 3 cubed. 3x 3* 4x3 108 243 4x3 x 3 x3 3 x 4 x 4x4 4 + 3 + 3 + 3
The expressions will be:
\(4\times3^3\)and
\(4\times3\times3\times3\)and
\(108\)Solve for x in this problem √x-2 +4=x
The Radical Form (√x) ,the solutions to the equation √x - 2 + 4 = x are x = 1 and x = 4.
The equation √x - 2 + 4 = x for x, we can follow these steps:
1. Begin by isolating the radical term (√x) on one side of the equation. Move the constant term (-2) and the linear term (+4) to the other side of the equation:
√x = x - 4 + 2
2. Simplify the expression on the right side of the equation:
√x = x - 2
3. Square both sides of the equation to eliminate the square root:
(√x)^2 = (x - 2)^2
4. Simplify the equation further:
x = (x - 2)^2
5. Expand the right side of the equation using the square of a binomial:
x = (x - 2)(x - 2)
x = x^2 - 2x - 2x + 4
x = x^2 - 4x + 4
6. Move all terms to one side of the equation to set it equal to zero:
x^2 - 4x + 4 - x = 0
x^2 - 5x + 4 = 0
7. Factor the quadratic equation:
(x - 1)(x - 4) = 0
8. Apply the zero product property and set each factor equal to zero:
x - 1 = 0 or x - 4 = 0
9. Solve for x in each equation:
x = 1 or x = 4
Therefore, the solutions to the equation √x - 2 + 4 = x are x = 1 and x = 4.
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Go to lesson page | Interpret multiplying fraction and whole number word problemsInterpret multiplying fraction and whole number word problemsProblemLeonardo uses \dfrac2332start fraction, 2, divided by, 3, end fraction of a bottle of green paint to paint each picture of a forest. He plans to paint 555 pictures of forests.How many bottles of green paint will Leonardo use?
The number of green paint bottles required by Leonardo to paint 5 pictures using \(\frac{2}{3}\) of a bottle per picture is \(3 \frac{1}{3} \) bottles
Fraction of bottle of green paint used per picture = \(\frac{2}{3} \)Number of pictures to be painted = 5
To obtain the total Number of bottles of green paint required :
(Fraction of bottles of green paint required per picture × number of pictures to be painted)Total number of bottles = \( 5 \times \frac{2}{3} = 3 \frac{1}{3} \)
Therefore, Leonardo will need \( 3 \frac{1}{3} \) bottles of green paint.
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the gardener has 75 shrubs to plant in 4 rows.
If he planted an equal number in each row, there were _____ shrubs left over.
if possible explain why you got this answer please :)
In 5.5 minutes you are able to type 297 words. What is your rate in words per minutes?
Answer:
54 words typed in one minute.
Step-by-step explanation:
1. If you divide 297 by 5.5 you will get your answer
ANSWER: 54 words/ 1 minute
If the radius of circle is r cm, what is the measure of its circumference?
Answer:
2 pie r is the measure of its circumference.
Answer:
you need to know the value of the radius in order to work out the circumfrance. do you have a picture of the math question?
Several years ago, the mean height of women 20 years of age or older was 63.7 inches. Suppose that a random sample of 45 women who are 20 years of age or older today results in a mean height of 64.1 inches. (a) State the appropriate null and alternative hypotheses to assess whether women are taller today. (b) Suppose the P-value for this test is 0.06. Explain what this value represents. (c) Write a conclusion for this hypothesis test assuming an a
Since the p - value is less than significance level . So, we will accept the null hypothesis.
(a) State the appropriate null and alternative hypotheses to assess whether women are taller today.
Definition of null hypothesis : The null hypothesis attempts to show that no variation exists between variables or that a single variable is no different than its mean. it is denoted
Alternative Hypothesis : In statistical hypothesis testing, the alternative hypothesis is a position that states something is happening, a new theory is true instead of an old one (null hypothesis).
We are given that The mean height of women 20 years of age or older was 63.7 inches.
So, null hypothesis : H₀ : μ = 63.7
Alternative Hypothesis : H₁ : μ > 63.7
b)The P-value for this test is 0.06.
The p-value represents the probability of getting a sample mean height of 20 years old women is 64.1 inches.
c) Write a conclusion for this hypothesis test assuming an alpha equals 0.10 level of significance.
p- value = 0.06
Since the p - value is less .
So, we will accept the null hypothesis
So,
Hence The mean height is 63.7 inches
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work out the length of x
Answer:Tes icahd
Step-by-step explanation:
Convert this rational numberto its decimal form and roundto the nearest thousandth.2/3
ANSWER
0.667
EXPLANATION
We want to convert the rational number given to decimal number.
To do this, we divide the numerator by the denominator.
That is:
\(\frac{2}{3}\text{ = 0.667}\)That is the answer, approximated to the nearest thousandth.
Assume that we have two events, A and B, that are mutually exclusive. Assume further that we know P(A) = 0.30 and P(B) =0.40.
What is P(A Assume that we have two
events, A and&nbB)?
What is P(A | B)?
Is P(A | B) equal to P(A)?
Are events A and B dependent or independent?
A student in statistics argues that the concepts of mutually exclusive events and independent events are really the same, and that if events are mutually exclusive they must be independent. Is this statement accurate?
What general conclusion would you make about mutually exclusive and independent events given the results of this problem?
The probability of A given B is 0, and P(A | B) is not equal to P(A). Events A and B are mutually exclusive, meaning that they cannot both occur at the same time, and thus they are not independent. Mutually exclusive events are not necessarily independent and independent events may or may not be mutually exclusive.
P(A) = 0.30 and P(B) = 0.40, so P(A and B) = 0 because the events A and B are mutually exclusive. This means that the probability of A given B is 0, and P(A | B) = 0. P(A | B) is not equal to P(A).Events A and B are mutually exclusive, meaning that they cannot both occur at the same time, and thus they are not independent.The statement that mutually exclusive events and independent events are the same is not accurate. Mutually exclusive events are not necessarily independent and vice versa.Given the results of this problem, we can conclude that mutually exclusive events are not independent, and independent events may or may not be mutually exclusive. The two concepts are not necessarily related as mutually exclusive events do not necessarily need to be independent and independent events do not necessarily need to be mutually exclusive.
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Helppppppp pleaseeee find the value of x. Step by step please
Evaluate the following expression if x=2,y=-3, and z=1.
13+|8+y|
The value of the expression 13 + |8 + y| if x = 2, y = -3, and z = 1 is 18
How to evaluate the expressionFrom the question, we have the following parameters that can be used in our computation:
x = 2, y = -3, and z = 1
Also, we have
13 + |8 + y|
Substitute the known values in the above equation, so, we have the following representation
13 + |8 + y| = 13 + |8 - 3|
So, we have
13 + |8 + y| = 13 + |5|
Remove the absolute bracket
13 + |8 + y| = 13 + 5
So, we have
13 + |8 + y| = 18
Hence, the solution is 18
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What is the slope, y intercept and equation of the graph
Answer:
slope=3 y- intercept is -2 and the equation is y=3x-2
Step-by-step explanation:
TIMED!!!
Given that <3 is a supplement of <4 and that m<3 = 117°, find m<4.
0 -27°
O 63°
O 73°
O 243°
Answer:
Answer → 63°
Step-by-step explanation:
» m<3 and m<4 are supplementary angles.
☑ Supplementary angles are angles that measure up to 180°
\({ \tt{m \angle 3 + m \angle 4 = 180 \degree}} \\ { \tt{117 \degree + m \angle 4 = 180 \degree}} \\ { \tt{m \angle 4 = 180 \degree - 117 \degree}} \\ { \tt{m \angle 4 = 63 \degree}}\)
Evaluate the following expression P(1+rt), for P=1575,r=0.055,t= 168 /365 . a 516,124 b $1975.71 c) $39,87 d) 51614.87
The correct option is a) $5161.24
To evaluate the expression P(1+rt) with the given values:
P = 1575
r = 0.055
t = 168/365
First, let's calculate rt:
rt = 0.055 * (168/365)
= 0.0252836 (rounded to 7 decimal places)
Now, substitute the values into the expression P(1+rt):
P(1+rt) = 1575 * (1 + 0.0252836)
= 1575 * 1.0252836
= 1615.85846 (rounded to 5 decimal places)
The result is approximately $1615.86.
Therefore, the correct option is a) $5161.24
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Peyton is going to invest $71,000 and leave it in an account for 18 years. Assuming the interest is compounded continuously, what interest rate, to the nearest hundredth of a percent, would be required in order for Peyton to end up with $106,000?
Answer:
2.23
Step-by-step explanation:
4 ( x+3) =16
HELP ! > DICLAIMER I KNOW THIS STUFF IM JUS BEING VERY LAZY .
Answer:
x=1
Step-by-step explanation:
The Gross revenue is $495,958.02. AR is 14% of the Gross RevenueWhat amount is tied up in AR?
The amount tied up in AR is $69434.12
Explanation:The Gross Revenue, GR = $495,958.02
From the question:
The Annual Revenue, AR = 14% of GR
AR = (14/100) x $495,958.02
AR = 0.14 x $495,958.02
AR = $69434.12
The amount tied up in AR is $69434.12
use the laplace transform to solve the given integral equation. f(t) + t (t − τ)f(τ)dτ 0 = t
f(t) = L^(-1){1 / (s^2 + s)} Inverse Laplace transform tables or techniques, determine the time-domain function f(t) that satisfies the given integral equation.
The Laplace transform is a powerful mathematical tool that can be used to solve complex integral equations, like the one you've provided: f(t) + t * ∫(t - τ)f(τ)dτ = t.
To solve this equation using the Laplace transform, follow these steps:
1. Apply the Laplace transform to both sides of the equation. The Laplace transform of f(t) is F(s), and the Laplace transform of t is 1/s^2. The integral equation becomes:
L{f(t)} + L{t * ∫(t - τ)f(τ)dτ} = L{t}
F(s) + L{t * ∫(t - τ)f(τ)dτ} = 1/s^2
2. Next, apply the convolution theorem to the integral term. The convolution theorem states that L{f(t) * g(t)} = F(s) * G(s). In this case, f(t) = t and g(t) = (t - τ)f(τ):
F(s) + L{t} * L{(t - τ)f(τ)} = 1/s^2
3. Now, substitute the known Laplace transforms for t and f(t):
F(s) + (1/s^2) * F(s) = 1/s^2
4. Combine the terms containing F(s):
F(s) * (1 + 1/s^2) = 1/s^2
5. Isolate F(s) by dividing both sides of the equation by (1 + 1/s^2):
F(s) = (1/s^2) / (1 + 1/s^2)
6. Simplify the expression for F(s):
F(s) = 1 / (s^2 + s)
7. Finally, apply the inverse Laplace transform to F(s) to obtain the solution for f(t):
f(t) = L^(-1){1 / (s^2 + s)}
Using inverse Laplace transform tables or techniques, you can determine the time-domain function f(t) that satisfies the given integral equation.
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A car increases, then decreases, its speed. Which table could represent the speed of the car? A 2-column table with 5 rows. The first column is labeled time (minutes) with entries 5, 6, 7, 8, 9. The second column is labeled speed (miles per hour) with entries 45, 43, 41, 42, 43. A 2-column table with 5 rows. The first column is labeled time (minutes) with entries 5, 6, 7, 8, 9. The second column is labeled speed (miles per hour) with entries 45, 47, 49, 48, 47. A 2-column table with 5 rows. The first column is labeled time (minutes) with entries 5, 6, 7, 8, 9. The second column is labeled speed (miles per hour) with entries 45, 45, 45, 43, 41. A 2-column table with 5 rows. The first column is labeled time (minutes) with entries 5, 6, 7, 8, 9. The second column is labeled speed (miles per hour) with entries 45, 43, 41, 41, 41.
Answer:
The speed increases (45—>47—>49) then decreases (48—>47) over time.
Step-by-step explanation:
HOPE THIS HELPED ✨
Answer: The speed increases (45—>47—>49) then decreases (48—>47) over time.
The 3 month eurodollar futures price for a contract maturing in 6 years is quoted as 95.20. The standard deviation of the change in the short-term interest rate in 1 year is 1.1%. Estimate the forward LIBOR interest rate for the period between 6.00 and 6.25 years in the future.
The estimated forward LIBOR interest rate for the period between 6.00 and 6.25 years in the future is approximately 7.495%.
To estimate the forward LIBOR interest rate for the period between 6.00 and 6.25 years in the future, given the 3-month Eurodollar futures price of 95.20 and a standard deviation of the change in the short-term interest rate in 1 year of 1.1%, follow these steps:
1. Convert the Eurodollar futures price to an implied interest rate:
Implied Interest Rate = (100 - Eurodollar Futures Price) = (100 - 95.20) = 4.80%
2. Calculate the number of standard deviations for the 6-year period:
Number of Standard Deviations = √(6 years) = √6 ≈ 2.45
3. Multiply the number of standard deviations by the annual standard deviation of the change in the short-term interest rate:
Change in Interest Rate = Number of Standard Deviations × Annual Standard Deviation = 2.45 × 1.1% = 2.695%
4. Add the change in the interest rate to the current implied interest rate to get the forward LIBOR interest rate for the period between 6.00 and 6.25 years in the future:
Forward LIBOR Interest Rate = Implied Interest Rate + Change in Interest Rate = 4.80% + 2.695% = 7.495%
So, the estimated forward LIBOR interest rate for the period between 6.00 and 6.25 years in the future is approximately 7.495%.
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l=8cm b=6cm h=5cm
find the total surface area and volume of cuboid
Which of the following numbers is divisible by 3?
a) 539
b) 85
c) 9,285
d) 640
Answer:
C
Step-by-step explanation:
539/3 = 179.666
85/3 =28.3333
9285/ 3 = 3095
640/3=213.3333
Answer:
C
Hope this helps :)
Step-by-step explanation:
All the others numbers equal a decimal when divided by 3. However, C equals a whole number so it's C.
9,285 ÷ 3 = 3,095
calculate the number of waffles produced if you start with 15 eggs, assuming you have enough of all other ingredients? given: 4 cups flour 6 eggs 2 tbsp oil 8 waffles
The number of waffles can be made from 15 eggs are, 20 waffles.
the waffles can be calculates as follows
4 cups of fluor + 6 eggs +2 tbsp oil = 8 waffles
we need 6 eggs to make 8 waffles
So, the waffles can we make from 15 eggs = \(\frac{8}{6} X 15 = 20\) waffles
Hence, the number of waffles can be made from 15 eggs are 20 waffles.
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PLEASE ANSWER QUICKLY
Write an equation in standard form for each parabola. A parabola with a vertex of (8,6) and a focus of (6,6).
A. (y-6)^2 = -8 (x-6)
B. (x-6)^2 = 8 (y-6)
C. (y-6)^2 = -4 (x-6)
D. (y-6)^2 = 8 (x-6)
E. (x-6)^2 = -8 (y-6)
F. (y-6)^2 = 4 (x-6)
ansewr: the ansewr is b
explanation: did it