Nikki can use modern portfolio theory to assess the risk and return behaviors associated with different combinations of assets X and Y.
Modern portfolio theory involves calculating the expected return and risk of a portfolio of assets by analyzing the correlations between the assets. It also looks at the diversification benefits of combining different assets and the impact of adding riskier assets to a portfolio. By quantifying the risk and return behaviors of different portfolios, Nikki can make informed decisions about which portfolios are most suitable for her.Modern portfolio theory is used to assess the risk and return behaviors of different combinations of assets X and Y. It considers correlations between the assets, the diversification benefits of combining them, and the impact of adding riskier assets. By quantifying the risk and return behaviors, Nikki can make informed decisions about which portfolios are most suitable for her.
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Sarai wants to make latkes for
the Hanukkah party. The recipe
says she will need 6 potatoes to
make 16 latkes. Sarai wants to
make 40 latkes. How many
potatoes will she need?
Answer:
The correct answer is 15 potatoes.
Step-by-step explanation:
To solve this problem, we can determine the unit rate and use proportions. We know that Sarai needs 6 potatoes for 16 latkes. We want to know how many potatoes she will need to make 40 latkes. Let's call this unknown value x. We can set up the following equation:
6 potatoes/16 latkes = x potatoes/40 latkes
To solve this equation, we can first simplify the left side to find the unit rate.
3 potatoes/8 latkes = x potatoes/40 latkes
To solve, we can recognize that 40 latkes is 5 times the amount shown in the unit rate (8 latkes), which means that we need 5 times the amount of potatoes.
3 potatoes * 5 = 15 potatoes
Therefore, the correct answer is 15 potatoes. Note that you could have also just solved the equation for x to find your answer as well.
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the probability of heads of a coin is , and this bias is itself the realization of a random variable which is uniformly distributed on the interval . to estimate the bias of this coin. we flip it times, and define the (observed) random variable as the number of heads in this experiment. throughout this problem, you may find the following formula useful: for every positive integers , given the observation , calculate the posterior distribution of the bias . that is, find the conditional distribution of , given . for ,
The resulting conditional mean squared error of the LMS estimator, given N=3 is 0.0383746
What is conditional distribution formula?In general, the conditional distribution of X given Y does not equal the conditional distribution of Y given X, i.e., pX|Y(x|y)≠pY|X(y|x). If X and Y are independent, discrete random variables, then the following are true: pX|Y(x|y)=pX(x)pY|X(y|x)=pY(y)
What is full conditional distribution?The full conditional for a given node (parameter) is simply the product of the probability model (likelihood or prior) for that node and its parent node (at least up to a constant of proportionality).
1) fY|N(y∣N=3)=84 y^6 (1-y)^3
2)0.0636363
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Donnelle has already saved $350.00
Donnelle can save $45 per week from her
part-time job. How many weeks will it take her to
save at least $2150 to pay cash for a used car?
State the null and alternative hypotheses you would use to test the following situation.An annual report showed that Florida topped the nation with 24% of its motorist uninsured. After implementing several new programs during the last two years, the state reevaluated its percentage of uninsured motorists. Determine the null and alternative hypotheses for a test to determine whether the proportion of uninsured motorists has decreased over the last two years.H_{0} / p = 0.24H_{1} / p > 0.24H_{0} / p = 0.24H_{1} :p ne0.24H_{0} / p > 0.24 H_{1} / p < 0.24H_{0} / p = 0.24 H_{1} / p < 0.24
Answer: Im sorry I cant help im just doing this for points
Step-by-step explanation:
The correct answer is [tex]H_0: p = 0.24 and H_1: p < 0.24[/tex].
How to write this in maths notationIn mathematical notation, the null hypothesis can be written as:
H_0: p = 0.24
where p is the proportion of uninsured motorists in Florida.
The alternative hypothesis can be written as:
H_1: p < 0.24
This means that we are testing the hypothesis that the proportion of uninsured motorists has decreased to a level that is less than 24%.
The null hypothesis is the default assumption, and we will only reject it if we have enough evidence to support the alternative hypothesis. In this case, we would need to collect data that suggests that the proportion of uninsured motorists has decreased to a level that is significantly less than 24%.
The correct answer is [tex]H_0: p = 0.24 and H_1: p < 0.24[/tex].
The other options are incorrect because they either do not specify the direction of the hypothesis test (i.e., whether we are testing whether the proportion of uninsured motorists has increased or decreased) or they are not supported by the given information.
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10. Which of the following sets of ordered pairs does not describe a function?
A
((7,-2), (5, 0), (3, 3), (1, -2)}
B
((7, 2), (5, 4), (3, 6), (1, 8))
C ((7, 2), (7, 0), (3,-2), (1,4)}
D ((7, 7),(5, 5), (3, 3), (1, 1))
Answer:
C {(7, 2), (7, 0), (3,-2), (1,4)}
Step-by-step explanation:
In a function, x = 7 can't be at both 2 and 0 because it would not pass the vertical line test.
Experience has shown that a certain lie detector will show a positive reading (indicates a lie) 10% of the time when a person is telling the truth and 95% of the time when a person is lying. Suppose that a random sample of 5 suspects is subjected to a lie detector test regarding a recent crime. The probability of observing no positive reading if all suspects are telling the truth is: (a) 0.00 (b) 0.23 (c) 0.41 (d) 0.59 (e) 0.77
The probability of observing no positive reading if all suspects are telling the truth is d. 0.59. Probability theory is a branch of mathematics that is used to model and analyze random events.
Probability can be used to predict the likelihood of different outcomes in a wide range of situations, from games of chance to scientific experiments to everyday events. Probability is a measure of the likelihood of an event occurring. It is expressed as a number between 0 and 1, with 0 indicating that an event is impossible and 1 indicating that an event is certain.
To solve this problem, we need to calculate the probability of observing no positive readings given that all suspects are telling the truth, which is equal to the probability that all 5 suspects receive a negative reading on the lie detector test. Since the lie detector will show a positive reading 10% of the time when a person is telling the truth, the probability that a suspect will receive a negative reading when telling the truth is 1 - 10% = 90%. Therefore, the probability that all 5 suspects will receive a negative reading when telling the truth is:
(90%)^5 = (0.9)^5 = 0.59049.
The correct answer is therefore (d) 0.59.
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If Cadence earns $66.50 washing cars for 7 hours, how much would she make washing cars for 9 hours?
Answer:$85.5
Step-by-step explanation:
So divide 66.50 by 7 and that will get you 9.5 then multiply that by 9 which is then 85.5
URGENT!! ILL GIVE BRAINLIEST!!!! AND 100 POINTS!!!
Question 7
The volume of the cone is approximately 134 ft cube.
The cone would fit in 4 times in the red beach ball.
How to find the volume of a sphere and cone?The diameter of the red beach ball is 8 inches, then the cone has the same radius and a height of 8 inches .
Therefore, to know the number of times the beach ball will fit into the cone, we have to find the volume of each solid shape.
Therefore,
volume of the beach ball(sphere) = 4πr³
where
r = radiusr = 8 /2 = 4 inches
volume of the beach ball(sphere) = 4 × π × 4³
volume of the beach ball(sphere) = 256π ft³
Therefore,
volume of the cone = 1 / 3 πr²h
where
r = radiush = heightvolume of the cone = 1 / 3 × π × 4² × 8
volume of the cone = 128π / 3
volume of the cone = 42.7π
volume of the cone = 134.078
volume of the cone ≈ 134 ft³
Therefore,
volume of beach ball / volume of cone = 256π / 42.7π = 5.99531615925
Therefore, the cone will fit 4 times into the red beach ball.
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for all negative semidefinite matrix, the first principal determinant has to be either 0 or negative. A. True B.False
A is negative semidefinite if and only if all the kth order principal minors of A are ≤ 0 if k is odd and ≥ 0 if k is even. The given statement is true.
What is a negative semidefinite matrix?
A Hermitian matrix with all of its eigenvalues being nonpositive is known as a negative semidefinite matrix. Using the Wolfram Language's NegativeSemidefiniteMatrixQ[m], a matrix may be checked to see if it is negative semidefinite.
The direction of space is inverted when the determinant is negative. If you give your fingers dimensions before transformation and they remain true after, it indicates that the orientation of space has not changed and the determinant is positive.
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Simplify the expression to a polynomial in standard form:
(x + 3)(2x" + 3x + 7)
Answer:
2x³ + 9x² + 16x + 21-------------------------------------
Given expression:
(x + 3)(2x² + 3x + 7)Distribute and simplify:
(x + 3)(2x² + 3x + 7) = Givenx(2x²) + x(3x) + 7x + 3(2x²) + 3(3x) + 21 = Distribute2x³ + 3x² + 7x + 6x² + 9x + 21 = Collect like terms2x³ + 9x² + 16x + 21 AnswerHelp!!!
A spinner is divided into five equal sections labeled 1, 2, 3, 4, and 5. Another spinner
is divided into two equal sections labeled A and B. Nigel will spin each spinner one
time.
How many of the possible outcomes have a number less than 3 or an A?
Hint: first write out the sample space (you should have 10)
Which samples have a number less than 3 or an A?
Answer:
There are 5 possible outcomes when the first spinner is spun, and 2 possible outcomes when the second spinner is spun. Therefore, the sample space of possible outcomes when both spinners are spun is 5 x 2 = <<5*2=10>>10.
The possible outcomes are:
1A
1B
2A
2B
3A
3B
4A
4B
5A
5B
Of these, 3A, 2A, 1A, and 4B have a number less than 3 or an A. Therefore, there are 4 possible outcomes that have a number less than 3 or an A.
Step-by-step explanation:
Mark pays out his debt at regular intervals every 6 months. He pays $500 each time. If the interest on the loan is 2% compounded semi-annually and he still has 8 years left to pay off the debt, how much does he still owe?
To find out how much Mark still owes on his debt, we need to calculate the amount of interest that has accrued on the loan over the time that he has been paying it off. The interest on the loan is compounded semi-annually, so the amount of interest that accrues on the loan will be added to the principal every six months. Since Mark has been paying off his debt for 8 years and the interest is compounded semi-annually, he will have made 16 payments of $500.
To calculate the total amount of interest that has accrued on the loan, we need to know the original principal amount of the loan. Since we don't have that information, we won't be able to calculate the exact amount that Mark still owes on his debt. However, we can use the information that we have to make an educated guess.
If Mark has been making payments of $500 every six months for eight years, then he has paid a total of $500 x 16 = $<<50016=8000>>8000 in principal and interest payments. If the interest on the loan is 2% compounded semi-annually, then the total amount of interest that has accrued on the loan over the past eight years is $8000 x 2% = $<<80002*.01=160>>160. This means that the original principal amount of the loan was $8000 - $160 = $<<8000-160=7840>>7840.
Since Mark still has 8 years left to pay off the debt, and he is making payments of $500 every six months, he will need to make a total of 8 years x 2 payments per year = <<82=16>>16 more payments of $500 to pay off the debt. This means that he will have to pay a total of $500 x 16 = $<<50016=8000>>8000 in principal and interest over the next eight years.
Since the total amount of interest that has accrued on the loan over the past eight years was $160, the total amount of interest that will accrue on the loan over the next eight years is also $160. This means that the total amount of interest that Mark will have to pay over the next eight years is $160 x 2 = $<<160*2=320>>320.
Adding the amount of interest that Mark will have to pay over the next eight years to the amount of principal that he will have to pay, we find that the total amount that Mark will owe on the loan over the next eight years is $8000 + $320 = $<<8000+320=8320>>8320.
Therefore, if Mark has been paying off his debt for eight years and still has eight years left to pay, he still owes a total of $8320 on the loan.
Which inequality matches the graph?
Answer:
2n + 5 ≤ 7 The first choice
Step-by-step explanation:
2n + 5 ≤ 7 Subtract 5 from both sides.
2n + 5 - 5 ≤ 7 - 5
2n ≤ 2 Divide both sides by 2
[tex]\frac{2n}{2}[/tex] ≤ [tex]\frac{2}{2}[/tex]
n [tex]\leq[/tex] 1
Answer:
2x +5 ≤ 7
I hope my answer helps you.
A card is drawn randomly from a standard 52-card deck. Find the following: Write all answers as simplified fractions (not mixed numbers). Probability the card drawn is a face card _____
Probability the card drawn is not a face card. ____
Odds in favor of drawing a face card ______
Odds against drawing a face card _____
The probability the card drawn is a face card is 3/13. The probability the card drawn is not a face card is 10/13. The odds in favor of drawing a face card is 3/10. The odds against drawing a face card are 10/3.
There are 52 cards in a standard deck, and 12 of them are face cards (jack, queen, and king). Therefore, the probability of drawing a face card is 12/52, or 3/13.
The probability of not drawing a face card is 1 minus the probability of drawing a face card. Since the probability of drawing a face card is 3/13, the probability of not drawing a face card is 1 - 3/13, which is 10/13.
The odds in favor of drawing a face card are 3:10, or 3/10. The odds against drawing a face card are 10:3, or 10/3.
In summary:
The probability the card drawn is a face card: 3/13
The probability the card drawn is not a face card: 10/13
Odds in favor of drawing a face card: 3/10
Odds against drawing a face card: 10/3
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A group of 2342 students were surveyed about the courses they were taking at their college with the
following results:
1031 students said they were taking Dance.
1058 students said they were taking Science.
1059 students said they were taking English.
449 students said they were taking Science and Dance.
459 students said they were taking Science and English.
456 students said they were taking Dance and English.
218 students said they were taking all three courses.
Fill in the following Venn Diagram with the cardinality of each region then answer the questions
below.
Science
IV.
11.
VII.
V.
English
VI.
How many students took Science, Dance, or English?
How many students took Dance and English, but not Science?
How many students took Science or didn't take Dance?
How many students took none of the courses?
Dance
III.
How many students took Science or English, but not Dance?
VIII.
The missing features of the Venn diagram include the following:
I=472, II=449 ,IV=459 ,V=218 , VI=456,
What is a Venn diagram?A Venn diagram is a circular illustration of how variables are interrelated to each other.
To solve for I;
Total number of students taking dance = 1031
Total number of students taking science and dance= 449
Total number of students taking all three courses= 218
Total number of students taking science and English = 459
Therefore, the number of students taking only science;
I =( II-V)+ (IV-V)
I= (449-218)+(459-218)
I = 231+241
I= 472
The number of students that took Science, Dance, or English =V= 218
The number of students took Dance and English, but not Science = VI = 456
The number of students took Science or didn't take Dance = IV = 459
The number of students took none of the courses = VIII = U
The number of students took Science or English, but not Dance = 459 students.
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The playing time X of classical CDs has the normal distribution with a mean of 54 and a standard deviation of 5; the N(54, 5) distribution. What is the relative frequency of classical CDs with a playing time X between 44 and 54 minutes? (2 points)
a)47.5%
b)52.5%
c)50%
d)81.5%
Using the normal distribution, it is found that the relative frequency of classical CDs with playing time X between 44 and 54 minutes is 0.8150= 81.5%.
Normal Probability Distribution
The z-score of a measure X of a normally distributed variable with mean and standard deviation is given by:
The z-score measures how many standard deviations the measure is above or below the mean.
Looking at the z-score table, the p-value associated with this z-score is found, which is the percentile of X.
The mean and the standard deviation are given, respectively, by:
The relative frequency of classical CDs with playing time X between 44 and 54 minutes is the p-value of Z when X = 69 subtracted by the p-value of Z when X = 44, hence:
X = 54:
Z = 3
Z = 3 has a p-value of 0.9987.
X = 54:
Z = -1
Z = -1 has a p-value of 0.1584.
0.9987 - 0.1584 = 0.8150
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find the critical values for a 99% confidence interval using the chi-square distribution with 10 degrees of freedom.
The critical values for a 99% confidence interval using the chi-square distribution with 10 degrees of freedom are 18.3278 and 28.3092.
The chi-square distribution is a continuous probability distribution that is used to determine the probability of a statistic being greater than or less than a certain value. The chi-square distribution with 10 degrees of freedom is used to calculate critical values for a 99% confidence interval.
To find the critical values, we need to use the chi-square distribution calculator. In the calculator, we should enter the degrees of freedom, which is 10 in this case, and the confidence level, which is 99% in this case. The calculator will then return the critical values for the 99% confidence interval for a chi-square distribution with 10 degrees of freedom, which are 18.3278 and 28.3092.
Step 1: Go to the chi-square distribution calculator.
Step 2: Enter the degrees of freedom, which is 10 in this case.
Step 3: Enter the confidence level, which is 99% in this case.
Step 4: Click the “Calculate” button.
Step 5: The calculator will return the critical values for a 99% confidence interval for a chi-square distribution with 10 degrees of freedom, which are 18.3278 and 28.3092.
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13,140 divided by 12
Answer:
1095
Step-by-step explanation:
Which polynomial is the product of (4x−3)(x2+2x−6)?
The polynomial that is the product of (4x−3)(x²+2x−6) is 4x³ + 5x² - 30x + 18
Which polynomial is the product of (4x − 3)(x² + 2x − 6)?A polynomial simply refers to the expression that is composed of constant, variables, and exponents that are combined by mathematical operations.
The product of the polynomial will be:
= (4x −3)(x² + 2x − 6)
= 4x³ + 8x² - 24x - 3x² - 6x + 18
= 4x³ + 5x² - 30x + 18
The product is 4x³ + 5x² - 30x + 18.
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Financial analysts forecast Safeco Corp.’s (SAF) growth rate for the future to be 12 percent. Safeco’s recent dividend was $1.60.
What is the value of Safeco stock when the required return is 14 percent? (Round your answer to 2 decimal places.)
The value of Safeco stock given the required return growth rate and the dividend of the stock is $89.60.
What is the value of Safeco stock?The value of the stock can be determined using the constant growth dividend model. According to the model, the value of the stock is a function of the growth rate, dividend and the required return of the stock.
Value of the stock = [dividend x (1 + g)] / (r - g)
where
r = required return
g = growth rate
Value of the stock = [1.60 x (1.12) / (0.14 - 0.12)
Value of the stock = 1.792 / 0.02
Value of the stock = $89.60
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Use the diagram to solve for x.
Mr. Martinez has a 16-ounce Starbucks drink. He drinks 10 ounces. What is the percent of ounces Mr. Martinez has left of his drink?
well, he has left only 6 oz.
now, if we take the 16(origin amount) to be the 100%, what is 6 off of it in percentage?
[tex]\begin{array}{ccll} amount&\%\\ \cline{1-2} 16 & 100\\ 6& x \end{array} \implies \cfrac{16}{6}~~=~~\cfrac{100}{x} \\\\\\ \cfrac{ 8 }{ 3 } ~~=~~ \cfrac{ 100 }{ x }\implies 8x=300\implies x=\cfrac{300}{8}\implies x=\cfrac{75}{2}\implies x=37.5[/tex]
Mark got a new job with a starting salary of $32,000. If he gets a yearly raise
of 2%. find Marks salary after 25 years
Answer:
Mark's salary after 25 years is $52,499.39
Step-by-step explanation:
This situation can be modelled exponentially. We are given the starting amount, 32000, and the annual growth rate, 2%. This means that, for every year that passes, we'd have [tex][(32000)(1.02)][/tex] $ as the salary. As such, the model would be [tex]S(t) = 32000(1.02)^t[/tex]. We want to find Mark's salary 25 years from the starting point, t=25. Having developed a model for this situation, we can simply plug in 25 for t:
[tex]S(25) = 32000(1.02)^{(25)}[/tex]
[tex]S(25) = 52499.39[/tex]
a box contains ten sealed envelopes numbered 1, . . . , 10. the first six contain no money, the next two each contains $5, and there is a $10 bill in each of the last two. a sample of size 3 is selected with replacement (so we have a random sample), and you get the largest amount in any of the envelopes selected. if x1, x2, and x3 denote the amounts in the selected envelopes, the statistic of interest is m
When the expected value and variance are 3.5 and 15.25, the statistic probability distribution will be 5/10, 3/10, and 2/10.
Given that,
A box contains ten sealed envelopes labelled 1, 2, 3, and 10. Six of them are empty, two have $5 apiece, and the remaining two each contain a $10 bill. You obtain the most money in any chosen envelope when replacement is used; a sample of size 3 is selected (forming a random sample). The statistic of interest is m if the quantities in the selected envelopes are represented by x1, x2, and x3.
We know that,
The probability distribution will be
P(X=0) = 5/10
P(X=5) = 3/10
P(X=10) = 2/10
In probability theory, the expected value is a development of the weighted average. The arithmetic mean of a sizable number of outcomes of a random variable that were independently selected is, informally, the expected value.
The expected value is
E =0(5/10)+5(3/10)+10(2/10) = 3.5
The variance is
V = 0² x (5/10) + 5² ( 3/10 ) + 10² x (2/10) - 3.5² = 15.25
Therefore, the statistic probability distribution will be 5/10, 3/10, and 2/10 when the expected value and variance are 3.5 and 15.25.
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a) If 6^x = 216’
find the value of x.
Answer: x=3
Step-by-step explanation:
6*6=36
36*6=216
6*6*6=216
6*6*6=[tex]6^{2}[/tex]
[tex]6^{x} =6^{3}[/tex]
x=3
Answer:
Step-by-step explanation:
we need to find a base for 216 that is equal to 6.
216 / 6 = 36
36 / 6 = 6,
So 6 * 6 = 36 and 36 * 6 = 216.
From this we know that 216 = 6^3
6^x = 6^3
x=3
Help me pls asappp……
Answer:
a. (0,1)
b. slope is -2
y-1=-2x
Step-by-step explanation:
Compute the directional derivatives of the following functions along unit vectors at the indicated points in directions parallel to the given vector. (a) rx, y) = x^y, (Xo, yo) = (e, e), d = 8i + 15j (b) f(x, y, z) = e^x + yz, (Xo, yo, Zo) = (1, 1, 1), d = (1,-4, 4) (c) f(x, y, z) = xyz, (xo, yo, Zo) = (1, 0, 1), d = (1, 0,-1)
The derivative of given function is D(yz+e^x)d(1,1,1) = (3*((59)^1/2)*e)/59≈1.06167045295814
We have to find the directional derivative of the given function
f(x,y,z) = yz+e^x at (x0,y0,z0)=(1,1,1) in the direction of the vector
d⃗ =(3,−5,5)
Find the gradient of the function and evaluate it at the given point:
To find the gradient of a function (which is a vector), differentiate the function with respect to each variable.
∇f= (∂f/∂x,∂f/∂y,∂f/∂z)
∂f/∂x = ∂( yz+e^x )/∂x
The derivative of a sum/difference is the sum/difference of derivatives:
∂f/∂x = ∂( yz)/∂x +∂(e^x )/∂x since the derivative of y and z with respect of x is zero.
∂f/∂x = e^x The derivative of exponential is d(e^x)/dx=e^x.
Similarly
d(yz+e^x)/dy = z and d(yz+e^x)/dz = y
∇(yz+e^x)(x0,y0,z0)=(e^x,z,y)
Finally plug in the point we get the result
∇(yz+e^x)|(x0,y0,z0)=(1,1,1)=(e,1,1)
∇(yz+ex)|(x0,y0,z0)=(1,1,1)=(e,1,1)
Now we Find the length of the vector: |d⃗ |=((3)^2+(−5)^2+(5)^2)^1/2 =(59)^1/2
To normalize the vector, divide each component by length:
d = ((3*((59)^1/2))/59 ,(−5*(59)^1/2)/59,(5*(59)^1/2)/59)
Finally, the directional derivative is the dot product of the gradient and the normalized vector:
D(yz+e^x)d(1,1,1) = (e,1,1). ((3*((59)^1/2))/59 ,(−5*(59)^1/2)/59,(5*(59)^1/2)/59)
D(yz+e^x)d(1,1,1) = (3*((59)^1/2)*e)/59≈1.06167045295814
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Solve the equation.12d-14=-2
Show Hint
Hint: Be sure to use inverse operations.
Solve the equation. 10 s -9=32
Show Hint
Hint: Be sure to use inverse operations.
Solve the equation. {c}/{-10}-5=9
Show Hint
Hint: Be sure to use inverse operations.
Answer: The answer is -2.34
Step-by-step explanation: Get Good
Derek boards a Ferris wheel at the 3-o'clock position and rides the Ferris wheel for multiple revolutions. The Ferris wheel rotates at a constant angular speed. Let h represent John's height above the center of the Ferris wheel (in feet) and let t represent the number of mintues since the ride started. a. Suppose the radius of the Ferris wheel is 20 feet and the Ferris wheel rotates at 1 radian per minute. Plot the relationship between h and t for this scenario. 20- 1o -10 -20 ear All Draw: b. Now, suppose the radius of the Ferris wheel is 20 feet and the Ferris wheel rotates at 2 radians per minute. Plot the relationship between h and t for this scenario. 30 20- 10 10 20 ear All Draw c. Now, suppose the radius of the Ferris wheel is 25 feet and the Ferris wheel rotates at 2 radians per minute. Plot the relationship between h and t for this scenario. 30 20 10 20 r All Draw:
The result for all expressions are
a) r(t) = 6.5t radians
b) C(t) = 20cos(6.5*t) feet
c) H(t) = 36 - C(t)
The situation is depicted in the picture attached considering the center of the wheel as the center of the coordinates system.
Since the angular speed is constant, to find an expression for the angle r(t) in radians we just cross-multiply:
6.5 radians __________ 1 minute
r(t) radians ____________ t minutes
and obviously, r(t) = 6.5t radians
The height C(t) above the center after t minutes is given by
C(t) = 20cos(r(t)) ===> C(t) = 20cos(6.5*t) feet
When C(t) < 0 means that derek wheel is below the center of the wheel.
Since the center of the Ferris wheel is 36 feet above the ground, the height H(t) above the ground after t minutes is given by
H(t) = 36 - C(t)
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Please help!!!!!!!!!!
Answer:
[tex]6^{\frac{1}{12}}[/tex]
Step-by-step explanation:
[tex]\frac{\sqrt[3]{6} }{\sqrt[4]{6} } =\frac{6^{\frac{1}{3} } }{6^\frac{1}{4} }[/tex]
[tex]= 6^{\frac{1}{3}[/tex] ÷ [tex]6^{\frac{1}{4}}[/tex]
= [tex]6^{\frac{1}{3}-\frac{1}{4}}[/tex]
=[tex]6^{\frac{4}{12}-\frac{3}{12}}[/tex]
[tex]= 6^\frac{1}{12}[/tex]