Answer:
(2,1)
Step-by-step explanation:
x = 7-3/2= 4/2= 2
y = 8-6/2 = 2/2 = 1
If the sum of an infinite geometric series is \( \frac{15625}{24} \) and the common ratio is \( \frac{1}{25} \), determine the first term. Select one: a. 625 b. 3125 c. 25 d. 125
The first term of the infinite geometric series is 625.Let's dive deeper into the explanation.
We are given that the sum of the infinite geometric series is \(\( \frac{15625}{24} \)\)and the common ratio is\(\( \frac{1}{25} \).\)The formula for the sum of an infinite geometric series is \(\( S = \frac{a}{1 - r} \)\), where \( a \) is the first term and \( r \) is the common ratio.
Substituting the given values into the formula, we have \(\( \frac{15625}{24} = \frac{a}{1 - \frac{1}{25}} \).\)To find the value of \( a \), we need to isolate it on one side of the equation.
To do this, we can simplify the denominator on the right-hand side.\(\( 1 - \frac{1}{25} = \frac{25}{25} - \frac{1}{25} = \frac{24}{25} \).\)
Now, we have \(\( \frac{15625}{24} = \frac{a}{\frac{24}{25}} \).\) To divide by a fraction, we multiply by its reciprocal. So, we can rewrite the equation as \( \frac{15625}{24} \times\(\frac{25}{24} = a \).\)
Simplifying the right-hand side of the equation, we get \(\( \frac{625}{1} = a \).\)Therefore, the first term of the infinite geometric series is 625.
In conclusion, the first term of the given infinite geometric series is 625, which corresponds to option (a).
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What do the parts of a spreadsheet of 48 is represent?
Therefore, the expression's 48th component is the cost per scarf.
Expression: What is it?A mathematical expression is a sentence that has at least two variables or integers and one mathematical action. In mathematics, it is possible to multiply, divide, add, or remove. An expression's structure is (Mathematical Operator, Number or Variable, Expression).
Here,
In the following expression, 483 denotes the total number of scarves, and 48 is the cost per scarf. For each scarf order, customers are charged a $4.75 delivery fee:
The 48 denotes the price per scarf, as can be seen from the supplied.
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Can some help pleasee it is due tonight and it’s the only question I need,I also need to do ate by step if it’s not much to ask
Answer: -3/16
Step-by-step explanation:
When there is a negative exponent like x^-2 it equals 1/(x^2) the negative puts the number as a fraction so continuing...
-12(x^-2) (y^-2) can be rewritten as
-12 (1/x^2) (1/y^2) now we plug in x = -2 and y = 4
-12 (1/(-2^2) (1/(4^2)); -2^2 = 4 , 4^2 = 16
-12 (1/4) (1/16)
-3 (1/16)
= -3/16
the least squares method for determining the best fit minimizes
The least squares method minimizes the sum of the squared differences between the observed data points and the predicted values.
The least squares method is a mathematical technique used to find the best fit line or curve for a set of data points. It is commonly used in regression analysis to determine the relationship between two variables.
The method works by minimizing the sum of the squared differences between the observed data points and the predicted values from the line or curve. This sum is known as the residual sum of squares (RSS) or the sum of squared residuals (SSR).
The least squares method aims to find the line or curve that minimizes this sum, meaning it minimizes the overall error between the observed data and the predicted values. By minimizing the sum of squared differences, the method finds the line or curve that best represents the data.
In other words, the least squares method seeks to find the line or curve that provides the best balance between fitting the data closely and avoiding extreme deviations from the data points.
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The least squares method for determining the best fit minimizes the sum of the squared differences between the observed data points and the corresponding values predicted by the mathematical model or regression line.
In other words, it aims to minimize the sum of the squared residuals, where the residual is the difference between the observed data point and the predicted value. By minimizing the sum of squared residuals, the least squares method finds the line or curve that best fits the data by minimizing the overall error between the predicted values and the actual data.
Mathematically, the least squares method minimizes the objective function:
E = Σ(yᵢ - ŷᵢ)²
where yᵢ is the observed value, ŷᵢ is the predicted value, and the summation Σ is taken over all data points. The goal is to find the values of the parameters in the mathematical model that minimize this objective function, usually by differentiating it with respect to the parameters and setting the derivatives equal to zero.
By minimizing the sum of squared differences, the least squares method provides a way to estimate the parameters of a mathematical model that best represents the relationship between the independent and dependent variables in a data set.
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Please hurry I need it ASAP
To solve this problem, we can use something called the law of sines. This is a proportional relationship in which the sine of one angle over the opposite side is equal to the sine of another angle over its opposite side.
sin(a) / a = sin(b) / b = sin(c) / c
To use the law of sines, we will need to figure out the measure of angle C, however.
27 + 132 + C = 180
159 + C = 180
C = 21
Now that we have sides and their opposite angles, we can apply the law of sines.
sin(27) / AC = sin(21) / 26
AC x sin(21) = sin(27) x 26
AC = [ sin(27) x 26 ] / sin(21)
AC = 32.9375
AC (rounded) = 32.9
Answer: AC = 32.9 m
Hope this helps!
test the series for convergence or divergence. [infinity] (−1)n 1 n2 n3 10 n = 1 correct converges diverges correct: your answer is correct.
The series ∑((-1)ⁿ⁺¹/(2n⁴) from n=0 to infinity is converges.
To test the convergence or divergence of the series ∑((-1)ⁿ⁺¹/(2n⁴) from n=0 to infinity, we can use the alternating series test.
The alternating series test states that if a series has the form ∑((-1)ⁿ)bₙ or ∑((-1)ⁿ⁺¹)bₙ.
where bₙ is a positive sequence that converges to zero as n approaches infinity, then the series converges.
We have ∑(-1)ⁿ⁺¹/2n⁴.
Let's analyze the sequence bₙ=1/2n⁴
The sequence bₙ = 1/(2n⁴) is always positive.
As n approaches infinity, 1/(2n⁴) approaches zero.
Therefore, we can apply the alternating series test to our series. T
The alternating series ∑((-1)ⁿ⁺¹/(2n⁴) converges because the sequence bₙ=1/2n⁴ satisfies the conditions of the alternating series test.
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f(x)= -4x^2+12x-9
What is the value of the discriminant of f?How many x-intercepts does the graph of f have?
Answer:
discriminant =b^2 -4ac
= (12)^2 -4(-4)(-9)
=0
The possible values of x are given. by x minus 4 is greater than or equal to -1. what is the greatest possible value of -5x
Answer:5
Step-by-step explanation:
State if the triangles in each pair are similar. If so, state how you know they are similar. *
Answer:
no the triangles are not similar.
Step-by-step explanation:
SNOWMOBILES Bruce rents snowmobiles to tourists. He charges $135 for 4 hours and $202.50 for 6 hours. What is the hourly rate Bruce charges to rent a snowmobile
Answer:
The answer is 33.75 per hour
Step-by-step explanation:
Divide 135 by 4
Triangle SAM is congruent to Triangle REN. Find x and y.
\(\measuredangle A\cong \measuredangle E\implies 112=16x\implies \cfrac{112}{16}=x\implies \boxed{7=x} \\\\[-0.35em] ~\dotfill\\\\ \overline{MS}\cong \overline{NR}\implies 41=3x+5y\implies 41=3(7)+5y\implies 41=21+5y \\\\\\ 20=5y\implies \cfrac{20}{5}=y\implies \boxed{4=y}\)
[10 points] Hotdog Palace was facing labor shortage (and higher per-hour labor cost) in the last month. Following table shows the production statistics.
November
December
Orders fulfilled
3537
2945
Labor cost
$9800
$9000
Material cost
$3500
$3500
Overhead costs
$2000
$2000 a. What is the multi-factor productivity in November? Show calculations to earn credit.
b. What is the multi-factory productivity in December? Has the productivity increased or decreased?
c. What is the percentage of productivity change? Show calculations to earn credit. Is it an increase or decrease?
d. Hotdog Palace has decided not to change the price of the food. What can you predict about the profits of Hotdog Palace? Explain your reasoning.
a. Multi-factor productivity in November: 0.231 b. Multi-factor productivity in December: 0.203 c. Percentage of productivity change: -12.12% d. Predicted impact on profits: It experience reduced profitability.
a. To calculate the multi-factor productivity in November, we use the formula:Multi-factor productivity = Output / (Labor cost + Material cost + Overhead costs). In November:
Output = Orders fulfilled = 3537
Labor cost = $9800
Material cost = $3500
Overhead costs = $2000
Multi-factor productivity = 3537 / (9800 + 3500 + 2000) = 3537 / 15300 ≈ 0.231
b. To calculate the multi-factor productivity in December, we use the same formula:In December:
Output = Orders fulfilled = 2945
Labor cost = $9000
Material cost = $3500
Overhead costs = $2000
Multi-factor productivity = 2945 / (9000 + 3500 + 2000) = 2945 / 14500 ≈ 0.203. The productivity has decreased from November to December.
c. The percentage of productivity change can be calculated using the formula: Percentage of productivity change = ((New productivity - Old productivity) / Old productivity) * 100
Percentage of productivity change = ((0.203 - 0.231) / 0.231) * 100 ≈ -12.12%. The productivity has decreased by approximately 12.12%.
d. Since the productivity has decreased and the price of the food remains unchanged, it suggests that the costs have increased relative to the output. This can have a negative impact on the profits of Hotdog Palace. With higher labor costs and potentially lower productivity, the company may experience reduced profitability unless it takes measures to address the labor shortage and improve productivity.
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problem: report error riders on a ferris wheel travel in a circle in a vertical plane. a particular wheel has radius 20 feet and revolves at the constant rate of one revolution per minute. how many seconds does it take a rider to travel from the bottom of the wheel to a point 10 vertical feet above the bottom?
It would take approximately 4.77 seconds for a rider to travel from the bottom of the Ferris wheel to a point 10 vertical feet above the bottom.
To find the time it takes for a rider to travel from the bottom of the Ferris wheel to a point 10 vertical feet above the bottom, we can use the concept of arc length and angular velocity.
The arc length formula for a circle is given by:
s = rθ
Where:
s is the arc length,
r is the radius of the circle,
θ is the central angle (in radians).
In this case, we want to find the time it takes to travel a vertical distance of 10 feet, which corresponds to an arc length of 10 feet on the Ferris wheel.
Given that the radius of the wheel is 20 feet and it completes one revolution (2π radians) per minute, we can set up the following equation:
10 = 20θ
To find θ, we can rearrange the equation:
θ = 10 / 20
θ = 0.5 radians
Now, we need to convert the time from minutes to seconds. Since the wheel revolves at a rate of one revolution per minute, we know that in one minute, there are 60 seconds. Therefore, one revolution takes 60 seconds.
To find the time it takes for the rider to travel from the bottom to the desired point, we can calculate the proportion of the central angle (θ) to a full revolution (2π radians) and then multiply it by the time for one revolution (60 seconds).
t = (θ / (2π)) * 60
Plugging in the value for θ, we have:
t = (0.5 / (2π)) * 60
Calculating this expression gives us:
t ≈ 4.77 seconds
Therefore, it would take approximately 4.77 seconds for a rider to travel from the bottom of the Ferris wheel to a point 10 vertical feet above the bottom.
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There are 12 players on a baseball team. In how many different ways can the coach choose players for left field, right field, and center field?
A) 36
B) 220
C) 1320
D) 1728
en que año el hombre piso por primera vez la luna
Answer: Me no speak spanish
Step-by-step explanation:
HELP PLEASE WILL GIVE BRAINLYEST IF YOU REMIND ME AND IF THE ANSWER IS CORRECT!!!!!!
Answer:Solutions: x=1.
Step-by-step explanation:
The final answer is 15.
Wish that profited you.
If you need any additional clarification, let me know. :)
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Carmen has 48 marbles. She gave 1/3 of her marbles to Chris. Chris gave 2 of his marble to his little brother. How many marbles does Chris have?
Answer:
Chris has 14 marbles
Step-by-step explanation:
First off 1/3 of 48 is 16.
So if Chris has 16
Then gave 2 to his brother.
16-2 = 14
Chris has 14
Hope this helps.
C) {(0, 1), (2.1), (0.3) Function? Explain:
Is this a function or not
Karen works at a call center charged with securing donations for a charity. Today she managed to convince only about 18% of the people she has called to donate. If she's able to convince 12 of the next 30 people she calls to make donations she'll be just over the 25% mark. How many calls has she made today so far?
Karen has made 76 calls today to secure donations at the call center.
Let's assume that Karen has made x calls so far today. According to the information given, she has convinced 18% of the people she has called to donate. This means that 18% of x calls have resulted in successful donations, which can be written as 0.18x.
Karen wants to be just over the 25% mark by convincing 12 out of the next 30 people she calls to donate. This means that the total number of successful donations should be slightly more than 25% of the total number of calls made. Representing this mathematically, we have (0.18x + 12)/(x + 30) > 0.25.
Simplifying the inequality, we have 0.18x + 12 > 0.25(x + 30). Solving for x, we find that x > 76.
Therefore, Karen has made 76 calls so far today to secure donations at the call center in order to be just over the 25% mark by convincing 12 out of the next 30 people she calls to donate.
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Right triangle ABC is located in A(-1,-2), B(-1,1) and C(3,1) on a coordinate plane. what is the equation of a circle with radius AC?
A) (x+1)*2+(y+2)*2=9
B) (x+1)*2+(y+2)*2=25
C) (x-3)*2+(y-1)*2= 16
D) (x-3)*2+(y-1)*2=25
Answer:
Hey there!
First, we want to find the radius of the circle, which equals the length of line segment AC.
Length of line segment AC, which we can find with the distance formula: \(\sqrt{25\\\), which is equal to 5.
The equation for a circle, is: \((x-h)^2+(y-k)^2=r^2\), where (h, k) is the center of the circle, and r is the radius.
Although I don't know the center of the circle, I can tell you that it is either choice B or D, because the radius, 5, squared, is 25.
Hope this helps :) (And let me know if you edit the question)
Answer: The equation of the circle is (x+1)²+(y+1)² = 25
Step-by-step explanation: Use the Pythagorean Theorem to calculate the length of the radius from the coordinates given for the triangle location: A(-1,-2), B(-1,1) and C(3,1) The sides of the triangle are AB=3, BC=4, AC=5.
Use the equation for a circle: ( x - h )² + ( y - k )² = r², where ( h, k ) is the center and r is the radius.
As the directions specify, the radius is AC, so it makes sense to use the coordinates of A (-1,-2) as the center. h is -1, k is -2 The radius 5, squared becomes 25.
Substituting those values, we have (x -[-1])² + (y -[-2])² = 25 .
When substituted for h, the -(-1) becomes +1 and the -(-2) for k becomes +2.
We end up with the equation for the circle as specified:
(x+1)²+(y+1)² = 25
A graph of the circle is attached. I still need to learn how to define line segments; the radius is only the segment of the line between the center (-1,-2) and (1,3)
heeeeeeeeelp plsssssssssssssssssssss
Answer:
I cant see any options, but, I would say:
"Tour Group 2 picked more apples than Tour Group 1"
Step-by-step explanation:
I think im right...
I hope I am
ANSWER ALL QUESTIONS PLS
Answer:
C, ACF,A,A,C
Step-by-step explanation:
3:18 - divide 3 into each side
None
Divide like number 1
Switch the numbers and divide
Do the opposite of number 1
which of the following is the best description of a population that has a stable age distribution? responses a large population that is growing at a constant rate a large population that is growing at a constant rate a large population with a negative growth rate a large population with a negative growth rate a population that is in the early stages of logistic population growth a population that is in the early stages of logistic population growth a growing population in which the proportions of individuals in the different age classes remain constant a growing population in which the proportions of individuals in the different age classes remain constant a small population that has not yet achieved exponential growth
the best description of a population that has a stable age distribution is (e) a growing population in which the proportions of individuals in the different age classes remain constant.
What does it mean to have a stable age distribution?Such a population will have a steady age distribution since the proportion of people in each age group will remain constant. Independent of the initial age distribution is this steady age distribution and is solely dependent on maintaining stable fertility and death rates.
It has been demonstrated that a closed population's annual rate of increase tends to become constant when it is exposed to age-specific fertility and mortality rates for a considerable amount of time.
A population that has reached this point is referred to as stable, and this consistent rate of growth is known as the intrinsic rate of natural increase.
Such a population will have a steady age distribution since the proportion of people in each age group will remain constant.
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A number and its additive inverse, or opposite are considered what
additive inverse. and additive inverse of a number “a” is the number that, when added to “a”, yields 0. this number is also known as the opposite (number), sign change, and negation. For a real number, it reverses its sign: the opposite to a positive number is negative, and the opposite to a negative number is positive.
I have no idea what to do for this question somebody please help
Answer:
405π
Step-by-step explanation:
Use the formula for Volume Of Cylinder (V=πr²h) where "V" represents the volume, "r" represents the radius, and "h" represents the height
The volume and the radius are given. (V=45π, r=3)
1. Solve for height
V=πr²h
45π=π3²h
45π/π=3²h
45=3²h
45=9h
45/9=h
h=5
2. Plug the new radius (3*3=9) into this formula and solve for "V"
V=π9²5
V=π81*5
V=405π
NEW VOLUME AFTER A TRIPLED RADIUS IS 405π
Find the equation of the line that passes through the points:(2, 2) and (3, 4)
Answer:
y=2x-2
Step-by-step explanation:
the slope of the two points can be found using rise over run which would be 4/2 and that equals 2. then you have to pout the y intercept.
if you need 3/4 cups of beans for 7 servings. How many do you need if you want to make 35 servings
Answer:
3 3/4 cups
Step-by-step explanation:
We need 3/4 cups of beans for 7 servings, and we need to figure out how many cups we need for 35 servings. You'll notice that 7 times 5 is 35. We can multiply 3/4 by 5 to find the answer to our problem. This thought process looks somewhat like this:
\(\frac{\frac{3}{4} }{7} = \frac{x}{35}\)
Notice that we can multiply 5 by 3/4 to find the value of x.
So, 3/4 times 5 is equal to 15/4, or 3 3/4. So, you need 3 3/4 cups of beans for 35 servings.
Hopefully this was helpful! If you have any more questions, let me know.
Which transformations is demonstrated when the fan blades turn?A) reflectionB) rotationC) translation
Let us see a definition and example of each transformation.
ReflectionThe shape is flipped across an imaginary line to make mirror images.
RotationThe shape is moved around a point.
TranslationThe shape is moved from one position to another in any direction.
In this case, we have a yellow point and a red shape that moves around the point.
Therefore, the transformation that is demonstrated when the fan blades turn is a rotation.
Find the value of x.
Answer:
35°
Step-by-step explanation:
There are 4 angles in quadrilateral which is equal to 360°. So...Add 100°, 110° and 80° and you will get 290°. Then, substract 290° from 360°. So you will get 70° which is Angle B. and then there's a straight line crossing the angle B. So divide with 2. You will get 35° which is equal to angle x because of the straight line.
Hope this help you.
U
(08.08)
Graph the six terms of a finite sequence where a1 = 5 and r = 1.25. (2 points)
{(1,6.25),(2,7.813), (3, 9.766),(4,12 207).(5, 15.259), (6, 19.073) }
20
15
10
Answer:
Step-by-step explanation:
\(a(n) = a1 *(1.25)^{(n-1)}\)
\(a(1) = 5\)
\(a(2) = 5*(1.25)^{(2-1)}\\a(2) = 5*(1.25)^{1}\\a(2) = 5*(1.25)\\a(2) = 6.25\)
\(a(3) = 5 * (1.25)^{(3-1)} \\a(3) = 5 * (1.25)^{2}\\a(3) = 5 * 1.565\\a(3) = 7.813\)
\(a(4) = 5* (1.25)^{(4-1)}\\ a(4) = 5* (1.25)^{3}\\a(4) = 5* 1.953\\a(4) = 9.766\)
\(a(5) = 5 * (1.25)^{(5-1)}\\a(5) = 5 * (1.25)^{4}\\a(5) = 5 * 2.441\\a(5) = 12.207\)
\(a(6) = 5 * (1.25)^{5}\\a(6) = 5 * 3.052\\a(6) = 5 * 3.0517\\a(6) = 15.259\)
\(a(1) = 5\)
\(a(2) = 6.25\)
\(a(3) = 7.813\)
\(a(4) = 9.766\)
\(a(5)=12.207\)
\(a(6)=15.259\)