Trevor spent a mean amount of $0.85 per day on snacks during
Week 1.
We have,
To determine during which week Trevor spent a mean amount of $0.85 per day on snacks, we need to calculate the mean (average) amount spent per day for each week and find the week that matches $0.85.
Let's calculate the mean amount spent per day for each week:
Week 1:
= (0.50 + 0.75 + 0.50 + 1.00 + 1.25 + 1.25 + 0.75 + 0.25 + 1.00) / 9
= $0.86 (approximately)
Week 2:
= (1.00 + 0.50 + 0.75 + 0.25 + 0.25 + 1.25 + 0.25) / 7
= $0.61 (approximately)
Week 3:
= (0.75 + 1.00) / 2
= $0.88
Week 4:
= (1.25 + 1.00 + 1.00 + 1.25 + 0.50) / 5
= $1.00
From the calculations, we can see that the mean amount spent per day for Week 1 is closest to $0.85.
Therefore,
Trevor spent a mean amount of $0.85 per day on snacks during
Week 1.
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Find each value or measure.
assume all lines that appear
to be tangent are tangent.
mztuv =
u
т.
539
v
s.
145º
The measure of angle TUV, given that line segment UT is tangent to circle V, and angle VTS is 145, is 55°.
Based on the information provided, you are looking to find the measure of angle TUV, given that line segment UT is tangent to circle V, and angle VTS is 145º.
Since UT is tangent to circle V, it means that angle UTV is a right angle (90º). Now, we know that the sum of the angles in a triangle is 180º. Therefore, to find the measure of angle TUV (m∠TUV), we can use the following formula:
m∠TUV + m∠UTV + m∠VTS = 180º
Substitute the given values:
m∠TUV + 90º + 145º = 180º
Solve for m∠TUV:
m∠TUV = 180º - 90º - 145º
m∠TUV = -55º
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The salaries of professional baseball players are heavily skewed right with a mean of $3. 2 million and a standard
deviation of $2 million. A baseball analyst randomly selects 40 athletes and records the mean salary. Which of the
following best describes the sampling distribution of all possible samples of size 40?
skewed right with a mean of 3. 2 million and a standard deviation of 2 million
skewed right with a mean of 3. 2 million and a standard deviation of 0. 32 million
approximately Normal with a mean of 3. 2 million and a standard deviation of 2 million
approximately Normal with a mean of 3. 2 million and a standard deviation of 0. 32 million
The best answer is approximately Normal with a mean of 3.2 million and a standard deviation of 0.32 million.
The sampling distribution of the mean of a sample is approximately normal if the sample size is sufficiently large, regardless of the distribution of the population from which the sample is drawn.
According to the Central Limit Theorem, the mean of the sampling distribution is equal to the population mean, which is $3.2$ million. The standard deviation of the sampling distribution is equal to the population standard deviation divided by the square root of the sample size, which is [tex]$2/\sqrt{40} \approx 0.3162$[/tex] million.
Therefore, the best answer is approximately Normal with a mean of 3.2 million and a standard deviation of 0.32 million.
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question in picture
Answer:
Trapezoid--------------------
First, plot the points and connect together in the given order.
See attached.
As we can see all sides are of different length but two sides seem to be parallel.
Let's find the slopes of segments BC and AD and compare:
m(BC) = (3 - 5)/(5- 1) = - 2/4 = - 1/2m(AD) = (- 8 - (-4))/(5 - (-3)) = - 4 / 8 = - 1/2As se see the slopes are same, so BC and AD are parallel.
Since we have a pair of parallel sides, the quadrilateral is a trapezoid.
Please help me with this
Answer:
B f(x)=1(8)^x
Step-by-step explanation:
1 is the 0 value, you can see it's exponential by the rapid growth and how it grows by a lot each time
2. Fiona is studying how income taxes impact various families and their finances. She creates a table with various amounts of taxes owed and estimates
that this represents 9% of each family's gross income.
Solve for the gross income for each family based off of their taxes owed.
The equation is Gross Income = Taxes Owed / 0.09.
To solve for the gross income for each family based on their taxes owed and the fact that this represents 9% of each family's gross income, follow these steps:
1. Write the equation: Taxes Owed = 0.09 * Gross Income
2. Rearrange the equation to solve for Gross Income: Gross Income = Taxes Owed / 0.09
3. Substitute the Taxes Owed value for each family into the equation and calculate their Gross Income.
For each family, input their taxes owed into the equation and you will find their gross income. Remember, the equation is Gross Income = Taxes Owed / 0.09.
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A spring with a 8-kg mass and a damping constant 18 can be held stretched 2 meters beyond its natural length by a force of 8 newtons. Suppose the spring is stretched 4 meters beyond its natural length and then released with zero velocity.
Find the position of the mass after t seconds.
To solve this problem, we will need to use the equation of motion for a damped harmonic oscillator: mx'' + bx' + k*x = 0 . The position of mass after t seconds : [tex]x(t) = 4*e^(-3t/4)cos(tsqrt(55)/4)[/tex]
b is the damping constant, k is the spring constant, and x' and x'' are the first and second derivatives of x with respect to time, respectively.
We can start by finding the spring constant k using the given information Next, we can find the initial displacement, Oscillation and velocity of the mass: x(0) = 4 m x'(0) = 0 m/s
Now we can substitute these values and the values for m, b, and k into the equation of motion and solve for [tex]x: 8x'' + 18x' + 4*x = 0[/tex], The general solution to this equation is: [tex]x(t) = Ae^(-3t/4)cos(tsqrt(55)/4) + Be^(-3t/4)sin(tsqrt(55)/4)[/tex] where A and B are constants that depend on the initial conditions.
We can solve for these constants using the initial displacement and velocity: [tex]x(0) = A = 4 m x'(0) = -3sqrt(55)/4B = 0 B = 0[/tex]
Therefore, position of mass after t seconds: [tex]x(t) = 4*e^(-3t/4)cos(tsqrt(55)/4)[/tex]
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Make sense and preserve: if you knew the length of df in parallelogram defg, how would you find the length of dk? explain.
To find the length of DK, we can divide the length of DF by 2 as the diagonals of a parallelogram bisect each other.
In parallelogram DEFG, the diagonals DF and EG intersect at point K. If we know the length of DF, we can use the property that the diagonals of a parallelogram bisect each other. This means that DK is equal to half the length of DF. Therefore, to find the length of DK, we can simply divide the length of DF by 2.
Length of DK = Length of DF/2
Hence we can find length of DK by above method.
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the complete questions is:
how would you find the length of dk if you knew the length of df in parallelogram defg? explain.
A positive integer k is such that k(k + 2013) is a perfect square. Show that k cannot be prime and
find the correct value of k
The only possible value of k is k = 336675.
What is the correct value of K ?Suppose, for the sake of contradiction, that k is a prime such that k(k+2013) is a perfect square. Let's denote the perfect square as m^2, where m is a positive integer. Then we can write:
k(k+2013) = m^2
Expanding the left-hand side, we get:
k^2 + 2013k = m^2
Moving all the terms to one side, we get:
k^2 - m^2 + 2013k = 0
Using the difference of squares, we can factor this as:
(k - m)(k + m) + 2013k = 0
Since k is a prime, it must be greater than 1. Thus, k + m and k - m are both integers greater than 1 whose product is divisible by k. This means that at least one of them is divisible by k. Since k is prime, this can only happen if either k + m or km is equal to k. Thus, we have two cases to consider:
Case 1: k + m = k, which implies m = 0. But m is a positive integer, so this is impossible.
Case 2: k - m = k, which implies m = 0. But again, m is a positive integer, so this is impossible.
Therefore, our assumption that k is prime leads to a contradiction, and we conclude that k cannot be prime.
To find the correct value of k, note that k and k+2013 share a common factor of 3. Thus, we can write k = 3n and k+2013 = 3m for some integers n and m. Substituting these expressions into the equation k(k+2013) = m^2 and simplifying, we get:
3n(3n+2013) = m^2
n(3n+2013/3) = m^2/3
n(n+671) = m^2/3
Since n and n+671 are relatively prime, both n and n+671 must be perfect squares. Let's write n = p^2 and n+671 = q^2 for some integers p and q. Then we have:
q^2 - p^2 = 671
Using the difference of squares again, we can factor this as:
(q + p)(q - p) = 671
Since 671 is a prime, its only factors are 1 and 671. Therefore, we have two possibilities:
q + p = 671, q - p = 1, which implies q = 336, p = 335, n = p^2 = 112225, k = 3n = 336675
q + p = 671, q - p = 671, which implies q = 336 + 335 = 671, p = 0, which is not a valid solution since n cannot be negative.
k = 336675. is the best possible answer.
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At a used book sale, paperback books sell for $3 each and hardback books sell for $8 each. If Claude purchased 10 used books for a total cost of $45 at the used book sale, how many hardback books did he purchase?
Claude purchased 3 hardback books
What is the meaning of purchase?
Purchase refers to the act of buying or acquiring a product, service, or other item in exchange for money or some other form of payment. Purchases can be made by individuals, businesses, or other organizations, and can be made in a variety of ways, including online, in-store, or through a third-party vendor.
Let's assume that Claude purchased x paperback books and y hardback books.
From the problem statement, we can set up a system of two equations to represent the information given,
x + y = 10 (the total number of books Claude purchased is 10)
3x + 8y = 45 (the total cost of the books Claude purchased is $45)
We can use the first equation to solve for x in terms of y:
x = 10 - y
Substituting this into the second equation,
3(10 - y) + 8y = 45
Simplifying the equation,
30 - 3y + 8y = 45
5y = 15
y = 3
Therefore, Claude purchased 3 hardback books. To find the number of paperback books, we can use the equation we derived earlier:
x = 10 - y = 10 - 3 = 7
So, Claude purchased 7 paperback books and 3 hardback books.
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James bought a cabinet for $438. 0. The finance charge was $49 and she paid for it over 18 months.
Use the formula Approximate APR =(Finance Charge÷#Months)(12)Amount Financed
to calculate her approximate APR.
Round the answer to the nearest tenth.
1. 6%
1. 7%
7. 4%
7. 5% ← correct answer
The approximate APR for James' cabinet purchase can be calculated using the formula Approximate APR = (Finance Charge ÷ #Months) (12) ÷ Amount Financed. Plugging in the given values, we get (49 ÷ 18) (12) ÷ 438 = 0.0397 or 3.97%. Rounded to the nearest tenth, the approximate APR is 4%.
APR, or Annual Percentage Rate, is the annual interest rate charged by a lender for borrowing money. It includes not only the interest rate but also any additional fees or charges associated with the loan. The APR helps borrowers compare different loan offers and understand the true cost of borrowing.
It is important to note that the APR is an approximation and may differ from the actual interest rate charged over the life of the loan, especially if the loan has variable rates or fees. When considering a loan, it is important to compare not just the APR but also the terms and conditions of the loan, such as the repayment period, monthly payments, and any penalties for early repayment.
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Consider the following cash flows: year cash flow 0 −$28,500 1 15,200 2 13,700 3 10,100 a. what is the profitability index for the cash flows if the relevant discount rate is 10 percent?
The profitability index is 0.1237.
To find the profitability index (PI), we need to divide the present value of the cash flows by the initial investment.
To calculate the present value of the cash flows, we need to discount each cash flow to its present value and then add them up. Using a discount rate of 10%, we get:
Year 0: -$28,500 / [tex](1 + 0.10)^0[/tex]= -$28,500
Year 1: $15,200 /[tex](1 + 0.10)^1[/tex]= $13,818.18
Year 2: $13,700 / [tex](1 + 0.10)^2[/tex] = $10,881.68
Year 3: $10,100 /[tex](1 + 0.10)^3[/tex] = $7,322.51
The sum of the present values is:
PV = -$28,500 + $13,818.18 + $10,881.68 + $7,322.51 =
PV = $3,521.37
The profitability index is therefore:
PI = PV / Initial Investment = $3,521.37 / $28,500 = 0.1237
So the profitability index is 0.1237.
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Math is not my best subject
The values are,
x = 15[tex]\sqrt{2}[/tex]([tex]\sqrt{2}[/tex] -1)/2
y = 15([tex]\sqrt{2}[/tex] -1)/2
z = 15
Labelling the given figure;
In ΔABC
Cos 60 = (y + z)/15[tex]\sqrt{2}[/tex]
⇒y + z = 15[tex]\sqrt{2}[/tex]/2 ....(i) (since cos 60 = 1/2)
In ΔADC
sin 45 = z/15[tex]\sqrt{2}[/tex]
⇒ z = 15 ....(ii) (since sin45 = 1/[tex]\sqrt{2}[/tex])
Now from (i) and (ii)
y = 15([tex]\sqrt{2}[/tex] -1)/2
In ΔABD
Sin 45 = y/x
⇒ 1/[tex]\sqrt{2}[/tex] = (15([tex]\sqrt{2}[/tex] -1)/2)/x
⇒ x = 15[tex]\sqrt{2}[/tex]([tex]\sqrt{2}[/tex] -1)/2
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Find the coordinates of the absolute extrema for f(x) on the closed interval [-4, 4]
x^3 - 3x^2 - 9x + 20
The coordinates of the absolute maximum point are (4, 24), and the coordinates of the absolute minimum point are (-4, -8).
To find the absolute extrema of the function[tex]f(x) = x^3 - 3x^2 - 9x + 20[/tex] on
the closed interval [-4, 4], we need to find the maximum and minimum
values of the function within the given interval.
Find the critical points of the function f(x) within the interval [-4, 4].
To find the critical points, we need to take the first derivative of the
function and set it equal to zero.
[tex]f(x) = x^3 - 3x^2 - 9x + 20[/tex]
[tex]f'(x) = 3x^2 - 6x - 9[/tex]
Setting f'(x) = 0, we get:
[tex]3x^2 - 6x - 9 = 0[/tex]
Dividing both sides by 3, we get:
[tex]x^2 - 2x - 3 = 0[/tex]
Factoring the quadratic equation, we get:
(x - 3)(x + 1) = 0
So, the critical points of the function within the interval [-4, 4] are x = -1 and x = 3.
Find the values of the function at the critical points and at the endpoints
of the interval [-4, 4].
To find the values of the function at the critical points and at the
endpoints of the interval, we evaluate the function at each of these
values.
f(-4) = -8
f(4) = 24
f(-1) = 24
f(3) = 2
Compare the values obtained in step 2 to find the maximum and minimum values of the function.
The maximum value of the function is 24, which occurs at x = -1 and x = 4.
The minimum value of the function is -8, which occurs at x = -4.
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Isaiah has a points card for a movie theater.
⢠He receives 75 rewards points just for signing up.
⢠He earns 6. 5 points for each visit to the movie theater.
⢠He needs at least 140 points for a free movie ticket.
Write and solve an inequality which can be used to determine x, the number of visits
Isaiah can make to earn his first free movie ticket.

Isaiah needs to make at least 10 visits to the movie theater to earn his first free movie ticket.
How to find Isaiah's required visits?To determine the number of visits Isaiah needs to earn his first free movie ticket, we can use an inequality. Let x be the number of visits he needs to make.
Isaiah earns 6.5 points for each visit, so the total points he earns after x visits is 6.5x.
He also received 75 points just for signing up, so the total number of points he has is 75 + 6.5x.
To earn a free movie ticket, he needs at least 140 points, so we can write the inequality:
75 + 6.5x ≥ 140
Simplifying this inequality, we get:
6.5x ≥ 65
x ≥ 10
Therefore, Isaiah needs to make at least 10 visits to the movie theater to earn his first free movie ticket.
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How to find the area of a tier
_________________________________
A = L × B × H = 22ft × 4ft × 6ft = 528ft²_________________________________
Can someone help and explain the terms and sequence with answers please?
29, 22, 15, 8
B) these are the first five terms of another sequence.
4, 7, 12, 19, 28
Find the nth term.
if y varies inversely as x and y = 18 when x = 1/2 then find x when y = -10
The value of x in the variation is -2/9
How to solve the variation?y varies inversely as x and the value of y is 18 and x is 1/2
the first step is to calculate the constant k
k= y/x
k= 18 ÷ 1/2
k= 18 × 2/1
k= 36
From the calculation above the value of k which is the constant is 36
The next step is to calculate x. The value of x can be calculated as follows
k = y/x
36= -10/x
cross multiply
36x= -10
x= -10/36
x= -2/9
Hence the value of x in the variation is -2/9
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Question 15 (5 points) Which of the following is true of (1, 4) and (1, −7)? Question 15 options: More information is needed to determine the relationship between the two points. The points lie on a diagonal line. The points lie on a horizontal line. The points lie on a vertical line.
The two supplied points (1, 4) and (1, −7), have identical x-values. These would create a vertical line if graphed, then joined.
Explain about solutions of equation of line:The points where the lines representing the intersections where the two linear equations intersect are referred to as the solution of a linear equation.
In other words, the set of all feasible values for the variables that satisfy the specified linear equation constitutes the solution set of a system of linear equations.When the graphs cross at a particular point, a system of linear equations does indeed have a single solution. No answer. So when graphs are parallel, an equation system with linear components cannot be solved.Given that:
Line has points: (1, 4) and (1, −7).
The two supplied points have identical x-values. These would create a vertical line if graphed, then joined.
The diagram is attached:
Hence, a vertical line would be formed by the points.
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Complete question:
Which of the following is true of (1, 4) and (1, −7).?
options:
More information is needed to determine the relationship between the two points. The points lie on a diagonal line. The points lie on a horizontal line.The points lie on a vertical line.TJ’s drawer has many loose socks: 5 gray, 5 black, and 6 white. If two socks are randomly pulled out without replacement, what is the probability that he pulls 2 white socks?
The probability of TJ pulling 2 white socks is 0.125 or 12.5%.
What is the probability that TJ pulls 2 white socks?There are 16 socks in total, so the probability of the first sock being white is 6/16.
Since we are not replacing the first sock, there are now 15 socks left, including 5 white socks.
So the probability of the second sock being white, given that the first sock was white, is 5/15.
To find the probability of both events occurring, we multiply the probabilities:
P(white and white) = P(white on first draw) × P(white on second draw, given that the first was white)
P(white and white) = (6/16) × (5/15)
P(white and white) = 1/8
So the probability of pulling 2 white socks is 1/8 or approximately 0.125.
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Mrs. Logan's class is hiking. They increase their elevation by 100 ft every 2 min. What is the rate of their climbing?
A 10ftminftmin
B 50ftminftmin
C 100ftminftmin
D 200ftmin
The correct answer to this question is C, 100ft/min.
The rate of climbing can be calculated by dividing the increase in elevation (100 ft) by the time it takes to make that increase (2 min).
This gives a rate of 50ft/min. Therefore, the class is climbing at a rate of 100ft/min since the question asks for the rate of their climbing.
It's important to pay attention to the wording of the question to ensure that the correct answer is selected. In this case, the question specifically asks for the rate of climbing, not the rate of increase in elevation.
Always read the question carefully and make sure to include all given information when solving problems with content loaded.
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You are conducting a poll to determine what proportion of Americans favor a government-run, single-payer healthcare system in the United States. You want your poll to be accurate to within 2% of the population proportion with 99% confidence. What is the minimum sample size required if a previous poll indicated that 21% of Americans favor a government-run, single-payer healthcare system?
The minimum sample size required is approximately 2507 individuals to accurately poll the proportion of Americans favoring a government-run, single-payer healthcare system within a 2% margin of error and with 99% confidence.
To determine the minimum sample size required for your poll on the proportion of Americans favoring a government-run, single-payer healthcare system, you need to consider the desired margin of error (2%), the confidence level (99%), and the estimated proportion from a previous poll (21%).
Step 1: Identify the critical value (Z-score) for a 99% confidence level. You can use a Z-score table or calculator for this. The critical value is approximately 2.576.
Step 2: Determine the margin of error (E). In this case, the margin of error is 2%, or 0.02.
Step 3: Use the estimated proportion (p) from the previous poll, which is 21%, or 0.21. Calculate the estimated proportion for not favoring the single-payer system (q), which is 1 - p, or 0.79.
Step 4: Apply the formula for the minimum sample size (n):
n = (Z^2 * p * q) / E^2
n = (2.576^2 * 0.21 * 0.79) / 0.02^2
n ≈ 2506.73
Since you cannot have a fraction of a person, round up to the nearest whole number. The minimum sample size required is approximately 2507 individuals to accurately poll the proportion of Americans favoring a government-run, single-payer healthcare system within a 2% margin of error and with 99% confidence.
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Jack is a discus thrower and hopes to make it to the Olympics some day. He has researched the distance (in meters) of each men's gold medal discus throw from the Olympics from 1920 to 1964. Below is the equation of the line of best fit Jack found.
y +0.34x + 44.63
When calculating his line of best fit, Jack let x represent the number of years since 1920 (so x=0 represents 1920 and x=4 represents 1924).
Using the line of best fit, estimate what the distance of the gold medal winning discus throw was in 1980.
A.) 71.83 meters
B.) 717.83 meters
C.) 65.03 meters
D.) 44.63 meters
the solution of equation problem is estimated distance of the gold medal winning discus throw in 1980 is approximately 65.03 meters. The answer is option C.
WHAT IS AN EQUATION?An equation is a statement that says two things are equal. It can contain variables, which can take on different values. Equations are used to solve problems and model real-world situations by expressing relationships between variables.
According to given informationA mathematical definition of an equation is a claim that two expressions are equal when they are joined by the equals sign ("="). For illustration, 2x - 5 = 13.
Here,
5 and 13 are expressions for 2x.
These two expressions are joined together by the sign "="
To estimate the distance of the gold medal winning discus throw in 1980 using the line of best fit, we need to first calculate the value of x for the year 1980
x = 1980 - 1920 = 60
Now, we can substitute x=60 into the equation of the line of best fit to find the estimated distance:
y = 0.34x + 44.63
y = 0.34(60) + 44.63
y = 20.4 + 44.63
y ≈ 65.03
Therefore, the estimated distance of the gold medal winning discus throw in 1980 is approximately 65.03 meters. The answer is option C.
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i
need help with this question please help
Verify that the function f(x) = -4x2 + 12x - 4 In x attains an absolute maximum and absolute minimum on [1,2] Find the absolute maximum and minimum values. Hint: In 2 – 0.7, Inį -0.7. Verify that
The absolute maximum value is 5 at x = 3/2 and the absolute minimum value is 4, which occurs at both x = 1 and x = 2.
To find the absolute maximum and minimum values of the function f(x) = -4x^2 + 12x - 4 on the interval [1, 2], we need to check the critical points and the endpoints of the interval.
First, let's find the critical points by taking the derivative of the function:
f'(x) = -8x + 12
To find the critical points, set f'(x) to 0 and solve for x:
-8x + 12 = 0
x = 3/2
Now, we have 3 points to check: x = 1, x = 3/2, and x = 2.
Evaluate the function at each point:
f(1) = -4(1)^2 + 12(1) - 4 = -4 + 12 - 4 = 4
f(3/2) = -4(3/2)^2 + 12(3/2) - 4 = -9 + 18 - 4 = 5
f(2) = -4(2)^2 + 12(2) - 4 = -16 + 24 - 4 = 4
Comparing the function values at these points, we find that the absolute maximum value is 5 at x = 3/2 and the absolute minimum value is 4, which occurs at both x = 1 and x = 2.
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Answer:
The absolute maximum value is 5 at x = 3/2 and the absolute minimum value is 4, which occurs at both x = 1 and x = 2.
To find the absolute maximum and minimum values of the function f(x) = -4x^2 + 12x - 4 on the interval [1, 2], we need to check the critical points and the endpoints of the interval.
First, let's find the critical points by taking the derivative of the function:
f'(x) = -8x + 12
To find the critical points, set f'(x) to 0 and solve for x:
-8x + 12 = 0
x = 3/2
Now, we have 3 points to check: x = 1, x = 3/2, and x = 2.
Evaluate the function at each point:
f(1) = -4(1)^2 + 12(1) - 4 = -4 + 12 - 4 = 4
f(3/2) = -4(3/2)^2 + 12(3/2) - 4 = -9 + 18 - 4 = 5
f(2) = -4(2)^2 + 12(2) - 4 = -16 + 24 - 4 = 4
Comparing the function values at these points, we find that the absolute maximum value is 5 at x = 3/2 and the absolute minimum value is 4, which occurs at both x = 1 and x = 2.
Step-by-step explanation:
Find missing side and round to nearest tenth plsss correct answer, points!
The missing sides are given as;
1. x = 12. 9
2. a = 12. 4
3. n = 5. 2
4. k = 13. 5
5. n = 22. 5
How to determine the valuesTo determine the missing sides, we have to use the different trigonometric identities. These identities are;
sine tangentcosineUsing the cosine identity, we have;
cos 31 = x/15
cross multiply the values, we get;
x = 12. 9
2. Using the tangent identity, we have;
tan 44 = 12/a
cross multiply the values
a = 12. 4
3. Using the sine identity;
sin 48 = n/7
n = 5. 2
4. Using the cosine identity;
cos 42 = 10/k
cross multiply
k = 13. 5
5. cos 26 = n/25
n = 22. 5
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What is the surface of the prism
Answer:
The third answer is correct
Step-by-step explanation:
Given:
A net of a rectangular prism
l (length) = 11,75 cm
w (width) = 5,75 cm
h (height) = 4 cm
Find: A (surface area) - ?
The surface area is equal to the sum of the areas of all the sides
There are:
2 sides with dimensions of 11,75 cm and 4 cm
2 sides with dimensions of 5,75 cm and 11,75 cm
2 sides with dimensions of 4 cm and 5,75 cm
[tex]a(surface) = 4 \times 11.75 \times 2 + 5.75 \times 11.75 \times 2 + 4 \times 5.75 \times 2 = 275.125 = 275 \frac{1}{8} \: {cm}^{2} [/tex]
You dog just had a litter of 9 puppies. Your mom is going to let you keep 2 of them. How many possible outcomes are there?
In a game, each player receives 7 cards from a deck of 52 different cards. How many different groupings of cards are possible in this game?
How many possible outcomes are there for a 4 digit ATM pin if the first number must be a 5?
How many three letter arrangements can be made from the letters in the word ocean?
Puppy outcomes: 36. Card groupings: 133,784,560. 5-digit PINs: 1,000. Three-letter arrangements: 24.
How many possible outcomes?
a) For the puppies, you have 9 choices for the first puppy and 8 choices for the second puppy. However, since the order in which you choose them does not matter (e.g., getting puppy A first and then puppy B is the same as getting puppy B first and then puppy A), we need to divide by the number of ways to arrange 2 items, which is 2! (2 factorial). Therefore, the number of possible outcomes is 9 * 8 / 2! = 36.
b) For the card game, each player receives 7 cards from a deck of 52 cards. The number of different groupings of cards can be calculated using combinations. The formula for combinations is nCr = n! / (r!(n-r)!), where n is the total number of cards (52) and r is the number of cards each player receives (7). Plugging in the values, we get 52C7 = 52! / (7!(52-7)!) = 133,784,560.
c) For the 4-digit ATM pin, the first number must be 5. The remaining three digits can be chosen from the numbers 0-9, excluding 5 (since it has already been chosen for the first digit). Therefore, there are 9 choices for the second digit, 10 choices for the third digit, and 10 choices for the fourth digit. Multiplying these choices together, we get 9 * 10 * 10 = 900 possible outcomes.
d) For the three-letter arrangements from the word "ocean," we have 5 letters to choose from. The first letter can be any of the 5 letters, the second letter can be any of the remaining 4 letters, and the third letter can be any of the remaining 3 letters. Multiplying these choices together, we get 5 * 4 * 3 = 60 possible arrangements.
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A construction company makes cement stairs from a wooden mold. The construction company must calculate the volume of the mold to determine how much cement they need to create the stairs. What is the volume of the wooden mold?
If the mold is not a rectangular prism, then the formula for its volume will be different, depending on its shape.
How to calculate the volume of the wooden mold?To calculate the volume of the wooden mold, we need to know its dimensions. Let's assume that the mold is in the shape of a rectangular prism, with length (L), width (W), and height (H).
Then, the volume (V) of the wooden mold is given by the formula:
V = L x W x H
To find the values of L, W, and H, the construction company needs to measure the dimensions of the mold using a measuring tape or ruler. Once they have the measurements, they can plug them into the formula above to find the volume of the mold.
It's important to note that the units of measurement used for the dimensions of the mold should be consistent. For example, if the length and width are measured in feet, then the height should also be measured in feet, and the resulting volume will be in cubic feet.
If the mold is not a rectangular prism, then the formula for its volume will be different, depending on its shape.
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5. this prism has a right triangle for a base. the volume of the prism is 54 cubic units.
what is the value of h?
The value of h is 6 units.
The volume of the prism is given by the formula V = 1/3 x (base area) x height. Since the base of the prism is a right triangle, the area of the base is given by A = 1/2 x base x height of the triangle. Therefore, the volume of the prism can be written as V = 1/3 x 1/2 x base x height of the triangle x height of the prism.
Simplifying this expression, we get V = 1/6 x base x height^2. Given that the volume of the prism is 54 cubic units, and substituting the value of the base which is not given as per the formula we get, 54 = 1/6 x base x h^2. Solving for h, we get h = 6 units. Therefore, the value of h is 6 units.
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!!!HELPP ME ASAP!!!! Claude is reading a science fiction book in which aliens have dropped a fungus on a 10 square mile section of a planet. The fungus spreads rapidly, increasing the area it covers by 50% every hour. The total
area of the planet is 200 million square miles. Claude created an equation and determined that it will take approximately 41 hours for the fungus to cover planet What is the equation that Claude created?
The equation Claude created is: 10 * (1.5)^t = 200,000,000, where t represents the number of hours.
Let A be the initial area of the fungus that covers the 10 square mile section of the planet.
After 1 hour, the fungus increases in size by 50%, which means it multiplies by 1.5. Thus, the area covered by the fungus after 1 hour is:
A + 1.5A = 2.5AAfter 2 hours, the fungus increases again by 50%, so its area becomes:
2.5A + 1.5(2.5A) = 6.25A
In general, after n hours, the area of the fungus becomes: A(1.5)^n
Since we want the fungus to cover the entire planet, we need to solve the following equation: A(1.5)^41 = 200,000,000
Simplifying, we get:
A = 200,000,000 / (1.5)^41
Therefore, the equation that Claude created is:
A(1.5)^n = 200,000,000
where n is the number of hours it takes for the fungus to cover the planet.
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on stats-2, run an anova to see if there is a significant difference in whether or not customers purchase a bike depending on their career type. what can you conclude from the results assuming that the data is a valid representation of the total population of potential bike customers?
The first option is correct. There is no significant difference in the purchasing patterns across career types
How is a data valid representation of the total populationIn order for a dataset to be a valid representation of the total population, it needs to be collected in a way that ensures that it is a fair and accurate sample of the population.
One way to ensure this is through random sampling, where individuals are selected to participate in the study without any bias or preconceived notions about their characteristics. This helps to reduce the potential for selection bias and ensures that the sample is representative of the larger population.
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