[tex]~~~~~~ \textit{Compound Interest Earned Amount} \\\\ A=P\left(1+\frac{r}{n}\right)^{nt} \quad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{original amount deposited}\dotfill &\$600\\ r=rate\to 4\%\to \frac{4}{100}\dotfill &0.04\\ n= \begin{array}{llll} \textit{times it compounds per year}\\ \textit{quarterly, thus four} \end{array}\dotfill &4\\ t=years\dotfill &10 \end{cases} \\\\\\ A = 600\left(1+\frac{0.04}{4}\right)^{4\cdot 10} \implies A \approx 893.32[/tex]
Alan, Ben and Craig, who have three distinct ages, are among five children running a race. Assuming there are no ties, in how many different orders can the five children fnish the race with Alan, Ben and Craig in order from oldest to youngest?
There are 2 different orders in which the remaining two children can finish the race.
Since Alan, Ben, and Craig must finish the race in order from oldest to youngest, their positions are fixed. We need to determine the number of arrangements for the remaining two children among the other two.
There are two remaining children who can finish in any order. We can calculate the number of arrangements using the formula for permutations of two objects:
P(2, 2) = 2!
The factorial of 2 is:
2! = 2 × 1 = 2
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The weights of 11 1111 different babies are recorded on the line plot below. Each weight was rounded to the nearest 1 8 8 1 start fraction, 1, divided by, 8, end fraction pound. 6 6 6 4 8 6 8 4 7 7 7 4 8 7 8 4 8 8 8 4 8 8 8 4 9 9 9 4 8 9 8 4 10 10 A line plot labeled 6 to 10 with tick marks every one-eighth unit. Above the tick mark at six and six-eighths is one dot. Above the tick mark at seven and one-eighth is a column of three dots. Above the tick mark at seven and two-eighths is a column of two dots. Above the tick mark at eight and three-eighths there is a column of three dots. Above the tick mark at eight and four-eighths there is one dot. Above the tick mark at nine and two-eighths is one dot. What is the difference, in weight, between the two heaviest babies? pounds pounds start text, space, p, o, u, n, d, s, end text
Answer:
6/8
Step-by-step explanation:
Answer: The answer is 6/8 ☻
Step-by-step explanation: I took the quiz and got it corrected. ヾ(^▽^*)))
a cohort study on the effectiveness of a treatment for alcoholism will follow 50 people for two years. in this time, it is expected that the number of people who drop out of the study due to relapse will be ten, with standard deviation four. it is also expected that the number of people who drop out of the study because they move out of the study area will be six, with a standard deviation of three. if these numbers are supposed to be independent, what is the expected number of people who will drop out due to either relapse or moving away? group of answer choices 6 10 16 not enough information given
You are given the expected number of people who drop out due to relapse and those who move out of the study area, along with their respective standard deviations. Since the numbers are supposed to be independent, you can simply add the expected values to find the expected number of people who will drop out due to either reason.
Step 1: Note the expected number of people dropping out due to relapse, which is 10.
Step 2: Note the expected number of people dropping out due to moving away, which is 6.
Step 3: Add the expected values from Steps 1 and 2: 10 + 6 = 16.
The expected number of people who will drop out due to either relapse or moving away is 16. Therefore, the correct answer from the group of choices is 16.
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Siti has 2/5 as much money as betty. If betty gives 1/2 of her money to siti what will be the ratio of sitis money to betty's money brainly
Siti's money will be 4/5 of Betty's money after Betty gives her half.
What is the ratio of Siti's money to Betty's money after Betty gives half of her money to Siti?Let's assume Betty has x amount of money. According to the given information, Siti has 2/5 of Betty's money, which is (2/5) * x. When Betty gives half of her money to Siti, she will be left with (1/2) * x, and Siti will have (2/5) * x + (1/2) * x = (4/10 + 5/10) * x = (9/10) * x. Therefore, the ratio of Siti's money to Betty's money is (9/10) * x : x, which simplifies to 9:10.
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How many feet are represented by a 4 in. Line if it's drawn to a scale of 1/4 in. = 1 ft
Using the given scale, we can see that 16 feet are represented by 4 inches.
How many feet are represented by a 4 in.?
Here we need to use the given scale.
We know the relation:
(1/4) inches = 1 feet
If we multiply both sides by 4, then we will get:
4*(1/4) inches = 4*1 feet
1 inch = 4 feet
Now we can do the change of units:
4 inches = 4*( 1 inch) = 4*4 feet = 16 feet
Then we can see that 4 inches is equal to 16 feet when using the given scale.
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Each equation in a system of linear equations has the same slope. What are the possible solutions the system could have? Responses The system could have no solution or infinitely many solutions. The system could have no solution or infinitely many solutions. The system could have one solution or no solution. The system could have one solution or no solution. The system could have one solution. The system could have one solution. The system could have one solution or infinitely many solutions.
The possible solutions the system could have include the following: C. The system could have one solution or no solution.
What is no solution?In Mathematics and Geometry, no solution is sometimes referred to as zero solution, and an equation is said to have no solution when the left hand side and right hand side of the equation are the same or equal.
This ultimately implies that, a system of equations would have no solution when the lines representing each of the equations are parallel lines and have the same slope i.e both sides of the equal sign are the same and the variables cancel out.
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find the indicated partial derivatives. w = x y 2z ∂3w ∂z ∂y ∂x = ∂3w ∂x2∂y =
Therefore, ∂³w/∂z∂y∂x = 2y using indicated partial derivatives.
To find the indicated partial derivative, we start by computing the partial derivatives of w with respect to x, y, and z.
∂w/∂x = y * 2z = 2yz
∂w/∂y = x * 2y * 2z = 4xyz
∂w/∂z = x * y * 2 = 2xy
Now we can find the third-order mixed partial derivative by differentiating ∂w/∂z with respect to y and then with respect to x:
∂³w/∂z∂y∂x = ∂²/∂x∂y (2xy) = 2y
Therefore, ∂³w/∂z∂y∂x = 2y.
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last year, the proportion of tax filers that received a refund was 25%. an accountant believes this upcoming tax year will have a smaller proportion of tax refunds than the proportion from last year. interested in studying this further, the accountant samples a few of their clients and determines the proportion that receive a refund for this upcoming tax year is 19%. as the accountant sets up a hypothesis test to determine if their belief about this upcoming tax year is correct, what is the accountant's claim? select the correct answer below: people should not expect a tax refund this upcoming year. the proportion of tax filers that receive a refund is less than 25%. the proportion of tax filers that receive a refund is less than 19%. the proportion of tax filers that receive a refund is greater than 25%.
The accountant's claim is: the proportion of tax filers that receive a refund is less than 25%. The Option B is correct.
Is proportion of tax filers that receive refund > than 25%?The accountant's claim is based on their belief that the upcoming tax year will have a smaller proportion of tax refunds than the proportion from the previous year.
To test the claim, the accountant samples few of their clients and determines that proportion of clients receiving refund for the upcoming tax year is 19%.
This sample proportion of 19% is lower than the proportion of 25% from the previous year which supports the accountant's claim that the proportion of tax filers receiving a refund is less than 25%.
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if f(1) = 10 and 2 ≤ f ′ (x) ≤ 5 for all x, what is the smallest possible value of f(4)?
if f(1) = 10 and 2 ≤ f ′ (x) ≤ 5 for all x, The smallest possible value of f(4) is 16.
Using the Mean Value Theorem, we can find a lower bound for f(4) based on the given information. By the Mean Value Theorem, there exists some c between 1 and 4 such that:
f'(c) = (f(4) - f(1))/(4 - 1) = (f(4) - 10)/3
Since 2 ≤ f ′ (x) ≤ 5 for all x, we have:
2 ≤ f'(c) ≤ 5
Substituting the expression we obtained for f'(c), we get:
2 ≤ (f(4) - 10)/3 ≤ 5
Multiplying through by 3, we get:
6 ≤ f(4) - 10 ≤ 15
Adding 10 to each term, we get:
16 ≤ f(4) ≤ 25
Therefore, the smallest possible value of f(4) is 16.
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find the exact length of the curve. x = 6 3t2, y = 8 2t3, 0 ≤ t ≤ 4
The exact length of the curve is:
[tex]L = 2(17^\frac{2}{3}-1 )[/tex]
We have the values of x and y are:
x = 6 + 3[tex]t^2[/tex]___eq.(1)
y = 8 + 2[tex]t^3[/tex]___eq.(2)
We have to find the exact length of the curve.
Now, According to the question:
We have to use the formula for length L of the curve:
[tex]L=\int\limits^4_0 \sqrt{[x'(t)]^2+[y'(t)]^2} \, dt[/tex]
Now, Differentiate both equations:
x' = 6t
y' = [tex]6t^2[/tex]
Plug the values in above formula:
[tex]L=\int\limits^4_0 \sqrt{6^2t^2+6^2t^4} \, dt[/tex]
By pulling 6t out of the square-root,
[tex]L=\int\limits^4_06t {\sqrt{1+t^2} } \, dt[/tex]
by rewriting a bit further,
[tex]L=3\int\limits^4_02t ({1+t^2} )^\frac{1}{2} \, dt[/tex]
by General Power Rule,
[tex]L = 3[\frac{2}{3}(1+t^2)^\frac{3}{2} ]^4_0[/tex]
[tex]L = 2(17^\frac{2}{3}-1 )[/tex]
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Please help!!! question 2
Answer:
a) [tex]239.387\; meters[/tex]
b) [tex]93,720.0105 \;m^2[/tex]
Step-by-step explanation:
You hid the figure for some reason so I am going by the description
AB represents the distance across the river
AC is on one side of the river
Points ABC form a right triangle with m∠C = 17°
The tangent of the angle of a right triangle can be found by the formula
[tex]\tan \theta = \dfrac{opposite}{adjacent}[/tex]
where
opposite is the side opposite the angle
adjacent is the side adjacent to the angle
Given θ = 17°, adjacent = AC = 783 meters, opposite = AB to be determined
[tex]\tan (17^\circ) = \dfrac{AB}{AC}\\\\AB = AC \cdot \tan(17^\circ)\\\\= 783 \cdot 0.30573\\\\= 239.387\; meters\\\\ANSWER (a)\\\\\\(b)\\Area = \dfrac{1}{2} \cdot b \cdot h[/tex]
where b is the base, h is the height of the triangle
here
b = AC = 783 m
h = AB = 239.387 m
[tex]Area = \dfrac{1}{2} \cdot 783 \cdot 239.387 \\\\= 93720.0105\: m^2[/tex]
Write an equation for the inverse variation represented by the table.
X -3 -1 1/2 2/3
Y 4 12 -24 -18
The inverse variation represented by the table is:
y = -12/x
How to find the inverse variation given by the table?Remember that a inverse variation between two variables x and y can be written as:
y = k/x
Where k is a constant.
Here we can use any pair of values in the table and replace them in the equation above.
If we use the point (1/2, -24) we will get:
-24 = k/(1/2)
-24 = 2k
-24/2 = k
-12 = k
And if we use the last point (2/3, -18) we will get:
-18 = k*(3/2)
-18*(2/3)) = k
-12 = k
Which is the same value.
Then the inverse variation can be written as:
y = -12/x
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for which order reaction is the half-life of the reaction proportional to 1/k (k is the rate constant)?
The half-life of a reaction is proportional to 1/k for a first-order reaction.
The half-life of a reaction is defined as the time required for half of the reactant to be consumed. The half-life (t1/2) of a first-order reaction is given by:
t1/2 = 0.693/k
where k is the rate constant of the reaction. For a second-order reaction, the half-life is given by:
t1/2 = 1/(k[A]0)
where [A]0 is the initial concentration of the reactant. For a zero-order reaction, the half-life is given by:
t1/2 = [A]0/(2k)
Comparing these equations, we see that the half-life of a first-order reaction is inversely proportional to the rate constant, whereas the half-life of a second-order reaction is directly proportional to the initial concentration of the reactant.
Therefore, the half-life of a reaction is proportional to 1/k for a first-order reaction.
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select the correct answer. a daycare center charges $3 per hour for preschool-aged children and $4 per hour for infants and toddlers. this equation represents the number of preschoolers, x, and infants and toddlers, y, at the daycare center in an hour when it earns $180: 3x 4y
Daycare center earns $180 from x preschoolers and y infants/toddlers.
How much does daycare cost?The equation given is 3x + 4y = 180, where x represents the number of preschoolers and y represents the number of infants and toddlers at the daycare center in an hour when it earns $180.
To find the values of x and y, we can use algebraic techniques such as substitution or elimination. For example, we can solve for y in terms of x by subtracting 3x from both sides and dividing by 4, giving us y = (180-3x)/4. We can then plug in different values of x to find the corresponding values of y.
Alternatively, we can solve for x in terms of y and use the same process. Ultimately, the goal is to find the values of x and y that satisfy the equation and make sense in the context of the problem.
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Together Gabe and Dylan can paint Mrs. Gravitt's classroom in 5 hours. Gabe works twice as fast as
Dylan. How many hours would it take each of them individually to paint the room?
suppose the average hourly wage rate for construction laborers in 2001 was $13.39. in 2011, suppose construction laborers made $16.44 per hour. the cpi for 2001 was 177.1 and for 2011, 224.9. calculate the percentage increase or decrease in real hourly wages from 2001 to 2011. (enter your percentage as a positive value. round your answer to one decimal place.)
The percentage increase in real hourly wages from 2001 to 2011 is 9.2%.
Determine the percentage increase or decrease?To calculate the percentage increase or decrease in real hourly wages, we need to adjust the nominal wages for inflation using the Consumer Price Index (CPI).
First, we calculate the inflation rate from 2001 to 2011 using the CPI values:
Inflation rate = ((CPI in 2011 - CPI in 2001) / CPI in 2001) * 100
Inflation rate = ((224.9 - 177.1) / 177.1) * 100
Inflation rate = (47.8 / 177.1) * 100
Inflation rate ≈ 0.2704 * 100
Inflation rate ≈ 27.04%
Next, we calculate the real hourly wage in 2001 by adjusting the nominal wage using the inflation rate:
Real hourly wage in 2001 = Nominal hourly wage in 2001 / (1 + (inflation rate / 100))
Real hourly wage in 2001 = $13.39 / (1 + (27.04 / 100))
Real hourly wage in 2001 ≈ $10.52
Finally, we calculate the percentage increase in real hourly wages from 2001 to 2011:
Percentage increase = ((Nominal hourly wage in 2011 - Real hourly wage in 2001) / Real hourly wage in 2001) * 100
Percentage increase = (($16.44 - $10.52) / $10.52) * 100
Percentage increase ≈ $5.92 / $10.52 * 100
Percentage increase ≈ 0.5623 * 100
Percentage increase ≈ 56.23%
Rounding the percentage increase to one decimal place, we get 56.2%. Therefore, the percentage increase in real hourly wages from 2001 to 2011 is 9.2%.
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A square, with a side length of 6x, has a triangle, with a base of 5x and a height of 2x, cut out of it. Find the remaining area.
Answer:
31x²
Step-by-step explanation:
Area of triangle = 0.5 X 5 X 2 = 5 (5x square units)
Area of square = 6x X 6x = 36x square units
36x² - 5x² = 31x²
Let sin A = − 24/25 with 270° ≤ A ≤ 360° and cos B = − 15/17 with 90° ≤ B ≤ 180° and find the following.
sin(A + B)
The value of sin(A + B) = 72/85 if sin A = − 24/25 with 270° ≤ A ≤ 360° and cos B = − 15/17 with 90° ≤ B ≤ 180°.
To find sin(A + B), we will use the formula:
sin(A + B) = sin(A)cos(B) + cos(A)sin(B)
First, we need to find sin(A) and cos(A). Since sin A = −24/25 with 270° ≤ A ≤ 360°, we know that A is in the fourth quadrant where sin A is negative and cos A is positive. Using the Pythagorean identity, we can find cos A:
cos² A + sin² A = 1
cos² A + (-24/25)² = 1
cos² A = 1 - (-24/25)²
cos A = √(1 - 576/625) = √49/625 = 7/25 (positive because A is in the fourth quadrant)
Therefore, sin A = -24/25 and cos A = 7/25.
Next, we need to find sin(B) and cos(B). Since cos B = −15/17 with 90° ≤ B ≤ 180°, we know that B is in the second quadrant where sin B and cos B are both negative. Using the Pythagorean identity, we can find sin B:
sin² B + cos² B = 1
sin² B + (-15/17)² = 1
sin² B = 1 - (-15/17)²
sin B = -√(1 - 225/289) = -√64/289 = -8/17 (negative because B is in the second quadrant)
Therefore, sin B = -8/17 and cos B = -15/17.
Now, we can substitute these values into the formula for sin(A + B):
sin(A + B) = sin(A)cos(B) + cos(A)sin(B)
= (-24/25)(-15/17) + (7/25)(-8/17)
= 360/425
= 72/85
Therefore, sin(A + B) = 72/85.
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4x - 4 = 4x + _____. What could you write in the blank so the equation would be True for all value of x
To make the equation 4x - 4 = 4x + _____ true for all values of x, we can write "0" in the blank. This will result in an equation that is always true regardless of the value of x.
By examining the given equation, we can see that the left-hand side (4x - 4) and the right-hand side (4x + _____) have the same expression, which is 4x. To make the equation true for all values of x, we need the expressions on both sides to be equal.
By adding "0" to the right-hand side, the equation becomes 4x - 4 = 4x + 0. Since the two expressions on both sides are now identical (both equal to 4x), the equation holds true for all values of x.
Adding 0 to an expression does not change its value, so the equation 4x - 4 = 4x + 0 is satisfied for any value of x, making it true for all values of x.
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Find the answer to this problem please
Answer:
56
Step-by-step explanation:
You can use the first formula to solve this. C is typically the hypotenuse, the longest side, which in this case is 65. B= 33
[tex]\sqrt{65^2-33^2}[/tex]=
[tex]\sqrt{4225-1089}[/tex]=
[tex]\sqrt{3136}[/tex]=
56
Which is greater, the circumference of a circle with radius 3 ft, or the distance around a semicircle with diameter 16 ft? by how much?.
The circumference of a circle with a radius of 3 ft is greater than the distance around a semicircle with a diameter of 16 ft by approximately 2.84 ft.
The circumference of a circle is calculated using the formula C = 2πr, where r is the radius. For the given circle with a radius of 3 ft, the circumference would be C = 2π(3) = 6π ft.
The distance around a semicircle is calculated by finding half the circumference of the corresponding full circle. In this case, the diameter of the semicircle is 16 ft, which means the corresponding full circle has a radius of 8 ft. The circumference of the full circle is C = 2π(8) = 16π ft. Therefore, the distance around the semicircle is half of that, which is 8π ft.
Comparing the two values, 6π ft is greater than 8π ft by approximately 2.84 ft. Hence, the circumference of the circle with radius 3 ft is greater than the distance around the semicircle with a diameter of 16 ft by approximately 2.84 ft.
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if a body is in equilibrium , it must satisfy all three laws of equilibrium.T/F
The given statement " if a body is in equilibrium , it must satisfy all three laws of equilibrium." is true because for a body to be in equilibrium, it must satisfy all three laws of equilibrium, which include the first law (sum of forces in any direction is zero), the second law (sum of moments about any point is zero), and the third law (no net torque or rotation).
When a body is in equilibrium, it means that it is not experiencing any acceleration and is at a state of rest or constant velocity. In order for a body to be in equilibrium, it must satisfy all three laws of equilibrium: the first law (translational equilibrium), the second law (rotational equilibrium), and the third law (force equilibrium).
Translational Equilibrium (First Law): The first law of equilibrium states that the sum of the forces acting on the body in any given direction must be zero.
Rotational Equilibrium (Second Law): The second law of equilibrium deals with rotational equilibrium. It states that the sum of the moments (torques) acting on the body about any point must be zero.
Force Equilibrium (Third Law): The third law of equilibrium, often referred to as the law of action and reaction, states that for every action, there is an equal and opposite reaction. In the context of equilibrium, it means that the forces acting on the body should be balanced, so that every force has an equal and opposite force that cancels it out.
When these conditions are met, the body is said to be in a state of equilibrium.
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Every two weeks, a solar panel company selects fifty of their modules and measures thelr power output. the most recent
test gave an average of 320 watts, with a 95% confidence interval of [315, 325]. if they don't update thelr manufacturing
process or design, about how many times a year will a sample have an average power outside this range?
a. 1
b. 3
c. 5
d. 10
]The solar panel company conducts tests every two weeks, with a recent test showing an average power output of 320 watts and a 95% confidence interval of [315, 325].
A 95% confidence interval means that 95% of the time, the true population mean will fall within the given range. Consequently, the remaining 5% of the time, the sample mean will fall outside this range.
Since the solar panel company conducts tests every two weeks, we can approximate the number of times a year the sample mean will fall outside the range by dividing the number of weeks in a year (52) by the interval of each test (2 weeks). This gives us 26 tests per year.
Considering the 5% probability of the sample mean falling outside the confidence interval, we can estimate that approximately 5% of 26 tests will have an average power output outside the range. This equates to 1.3 tests.
Rounding to the nearest whole number, we find that, on average, the sample will have an average power outside the given range about 1 time per year. Therefore, the correct option is (a) 1.
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for an f-curve with df = (20, 5), find f0.025
The value of f(0.025) is approximately ±2.086 for an f-curve with df = (20, 5).
The t-distribution is a way of describing a set of observations where most observations fall close to the mean, and the rest of the observations make up the tails on either side. It is a type of normal distribution used for smaller sample sizes, where the variance in the data is unknown.
To find f(0.025) for an f-curve with df = (20, 5), we need to use a t-distribution table.
First, we need to determine the critical value for a two-tailed test with a significance level of 0.05 and 20 degrees of freedom (df).
Looking at the t-distribution table, we find that the critical value is approximately ±2.086.
Next, we can use the formula for the t-distribution to calculate f(0.025):
f(0.025) = t(0.025, 20) = ±2.086
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Distribute to create an equivalent expression with the fewest symbols possible.
6(a + 2b +3c) =6(a+2b+3c)=6, left parenthesis, a, plus, 2, b, plus, 3, c, right parenthesis, equals
The simplified expression is 6a + 12b + 18c, which involves distributing the coefficient 6 to each term inside the parentheses.
To distribute the coefficient 6 to each term inside the parentheses, we multiply 6 with each term individually. Distributing 6 to (a + 2b + 3c) gives us:
6 * a + 6 * 2b + 6 * 3c
Simplifying each term, we have:
6a + 12b + 18c
Therefore, the equivalent expression with the fewest symbols possible is 6a + 12b + 18c, which represents the distribution of the coefficient 6 to each term inside the parentheses.
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find the ordered pair that corresponds to the given pair of parametric equations and value of t. x = 4t + 5, y = -2t + 4; t = 2
The ordered pair is ...
The ordered pair that corresponds to the given pair of parametric equations and t = 2 is (13, 0).
We are given the pair of parametric equations:
x = 4t + 5
y = -2t + 4
and we need to find the ordered pair (x,y) when t = 2.
Substituting t = 2 into the equations, we get:
x = 4(2) + 5 = 13
y = -2(2) + 4 = 0
Therefore, the ordered pair that corresponds to the given pair of parametric equations and t = 2 is (13, 0).
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what is the slope of the line tangent to the curve (y−1)x2=y 1 at the point (0,−1)
Therefore, the slope of the line tangent to the curve at the point (0,-1) is 0.
To find the slope of the tangent line, we need to take the derivative of the curve and evaluate it at the given point.
Taking the derivative of the curve with respect to x, we get:
2x(y - 1) + x^2(dy/dx) = dy/dx
Simplifying and solving for dy/dx, we get:
dy/dx = (2x(y - 1))/(x^2 - 1)
To find the slope of the tangent line at the point (0,-1), we substitute x=0 and y=-1 into the above equation:
dy/dx = (2(0)(-1))/(0^2 - 1) = 0
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ed drives to work at a constant speed s. one day he is halfway to work when he immediately turns around, speeds up b8 mph, and drives home. as soon as he is home, he turns and drives to work at6 mph faster than he drove home. his total driving time is exactly 67% greater than usual. find s in mph and write the answer in the corresponding blank on the answer sheet
The speed s of Ed's drive to work is 24 mph.
Let d be the distance between Ed's home and work, and let t be the time it takes him to drive to work at speed s. Then, we know that Ed drove half the distance to work before turning around, so he drove d/2 miles.
When he turns around, he increases his speed by 8 mph, so his new speed is s+8 mph. He then drives back to his home, covering the same distance of d/2 miles at an increased speed.
The time it takes him to drive home is therefore (d/2)/(s+8) hours. When he arrives home, he turns around and drives to work at a speed of (s+6) mph. The time it takes him to drive to work is then d/(s+6) hours.
Since Ed's total driving time is 67% greater than usual, we know that his new driving time is 1.67t. Setting up an equation using these values, we get:
d/(s+6) + d/2/(s+8) + d/(s) = 1.67t
Simplifying this equation yields:
d = 6t(s+6)/(7s+24)
We also know that Ed drove half the distance to before turning around, so:
d/2 = st/2
Substituting for d and solving for s yields:
s = 24 mph
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In this scenario, what is the test statistic? A mortgage loan officer would like to test the claim that the average percent down on a single family home purchase is greater than the recommended 20 percent. Sample size =22 recent home purchases Sample mean =24 percent down Sample standard deviation =9 percent down Calculate the test statistic using the formula: t0=x¯−μ0sn√ where: x¯ = sample mean s = sample standard deviation, n = sample size, and μ0 = population mean under the null hypothesis. Round your answer to 2 decimal places
Rounding the test statistic to 2 decimal places, the test statistic is approximately 2.08.
To calculate the test statistic, we use the formula:
t₀ = (x - μ₀) / (s / √n)
Given:
Sample mean (x) = 24 percent down
Sample standard deviation (s) = 9 percent down
Sample size (n) = 22
Population mean under the null hypothesis (μ₀) = 20 percent
Plugging in these values into the formula, we have:
t₀ = (24 - 20) / (9 / √22)
Calculating the value inside the square root:
t₀ = 4 / (9 / √22)
Calculating the square root of 22:
t₀ = 4 / (9 / 4.69)
Dividing 4 by (9 / 4.69):
t₀ ≈ 2.08
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the measure of ∠abc in the figure is x°. which of the following is an expression for β° ?
An expression for the measure β° is 180 - x
The correct answer is an option (d)
We know that the sum of four angles of the quadrilateral is always 360°
In the attached quadrilateral angle A and angle D measures 90 degrees respectively.
The measure of ∠ABC in the figure is x° and the measure of ∠BCD is β°
From above statement for quadrilateral ABCD we have,
⇒ ∠A + ∠B + ∠C + ∠D = 360°
⇒ 90° + x°+ β° + 90° = 360°
⇒ x° + β° = 360° - 180°
⇒ x° + β° = 180°
⇒ β = 180 - x
Therefore, the required expression is β = 180 - x
The correct answer is an option (d)
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