Answer:
n ∈ ℕ . . . (Natural numbers)
Step-by-step explanation:
You want the domain of the relation s(n) = 7+3n so that it defines the sequence 10, 13, 16, ....
DomainThe domain of a function is the set of "input" values for which the function is defined. Here, the function is intended for use with values of n that are Natural numbers:
domain = ℕ
__
Additional comment
In general, the domain of any function that defines a sequence will be Natural numbers. That is, values of n will be 1, 2, 3, ....
Occasionally, the sequence represents a relation that is of interest for values of n other than positive integer values. In such a case, the domain may be Whole numbers, or Real numbers.
1. Lars rides a chairlift to the top of a mountain. The chairlift rises at a
constant angle of 37º. If the length of the chairlift ride is 1,392 m,
what is the elevation gain from the base of the chairlift to the top?
The elevation gain from the base of the chairlift to the top is 835.2 m
Consider the following diagram.
The chairlift rises at a constant angle of 37°
i.e., the angle of elevation (∠ACB) = 37°
The length of the chairlift ride is 1,392 m
This means, for right triangle ABC, the length of hypotenuse AC = 1392 m
To find the elevation gain from the base of the chairlift to the top i.e., the length of side AB.
Consider the sine of angle ∠ACB
sin(∠ACB) = AB/AC
sin(37°) = AB/1392
3/5 = AB/1392
AB = 835.2 m
Therefore, the elvation gain is 835.2 m
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Demonstrate/explain how you can use the formula that partitions any segment into a given ratio to derive the specific formula for a midpoint. (Hint: Think of the ratio that is formed by a midpoint.)
let's say we have two points A(a , b) and B(c , d) partitioned by a point C, since we're dealing with the MidPoint, C is partitioning AB into two equal halves, so in the ratio of 1 : 1.
[tex]\textit{internal division of a line segment using ratios} \\\\\\ A(a,b)\qquad B(c,d)\qquad \qquad \stackrel{\textit{ratio from A to B}}{1:1} \\\\\\ \cfrac{A\underline{C}}{\underline{C} B} = \cfrac{1}{1}\implies \cfrac{A}{B} = \cfrac{1}{1}\implies 1A=1B \\\\\\ 1(a,b)=1(c,d) \implies (a~~,~~ b)=(c~~,~~ d) \\\\\\ C=\left( \cfrac{a+c}{1+1}~~,~~\cfrac{b+d}{1+1} \right)\implies \stackrel{ \textit{MidPoint Formula} }{C=\left( \cfrac{a+c}{2}~~,~~\cfrac{b+d}{2} \right)}[/tex]
Find the perimeter of △XYZ. Round your answer to the nearest tenth if necessary. Figures are not necessarily drawn to scale.
45.0 units is the required perimeter of triangle XYZ
Similar triangle and perimeter of triangle.Triangles are known to be similar if the ratio of the similar sides are equal to a constant. The perimeter is the sum of all the sides of the triangle.
From the given diagram , we need to solve for the value of x first as shown:
9/10 = 14/x
9x = 140
x = 140/9
x = 15.6
Find the required perimeter of XYZ
perimeter = ZY + XY + XZ
perimeter = 15.4 + 14 + 15.6
Perimeter = 45.0 units
Hence the perimeter of triangle XYZ is approximately 45.0 units
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Find the number that makes the ratio equivalent to 4:1.
40:
Answer:
Below
Step-by-step explanation:
You multiplied the '4' by 10 to get 40 .....multiply the '1' by 10 the get the second number = 10 this will keep the ratio correct
HELP ME OUTTTTTT !!!!!!!!!!!!
The equation that shows the rate at which she travels is given as r = 300/t
What is an equationAn equation is a mathematical statement that asserts the equality of two expressions. Equations are used to describe relationships between variables and to solve problems by finding the values of unknowns.
An equation is comprised of two expressions separated by an equal sign (=). The expressions can be as simple as a number or as complex as a combination of numbers, variables, and mathematical operations such as addition, subtraction, multiplication, division, and exponentiation. The goal of solving an equation is to find the value of the variable that makes the equation true.
In this problem, we can represent the rate at which we travel by
r = 300 / t
where;
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the height h of the triangle is 8cm greater than its corresponding base
2 x - 9 = - 3
what is x
Answer:
x = 3
Step-by-step explanation:
[tex]2x - 9 = -3[/tex]
[tex]2x = 6[/tex]
[tex]x = 3[/tex]
Can i have some help here pls?
Answer:
x = 35°
Step-by-step explanation:
The triangle is an isosceles triangle since two sides are formed by the radii of the circle
Therefore m∠C = x°
The angle 70° is the exterior angle of the triangle
Exterior angle = sum of interior angles
70° = x + x = 2x
2x = 70
x = 35°
50 POINTS
Which linear graph represents a proportional relationship?
a graph of a line that passes through the points 0 comma 0 and 0.5 comma negative 3
a graph of a line that passes through the points 0 comma 2 and 1 comma 5
a graph of a line that passes through the points 0 comma 4 and 1 comma 4
a graph of a line that passes through the points 0 comma negative 0.5 and negative 1 comma 0
The linear graph represents a proportional relationship, a graph of a line that passes through the points (0, 0) and (0.5, -3).
What is a linear equation?Each term in a linear equation has an exponent of 1, and when this algebraic equation is graphed, it always produces a straight line. It is called a "linear equation" for this reason.
Both linear equations with one variable and those with two variables exist.
Given the coordinates to find the linear graph represents a proportional relationship,
we know the equation of a line given by,
y = mx + c
where m is the slope and c is the y-intercept,
to prove the graph the proportional value of the y-intercept should be zero, (0, 0)
when c = 0, y = mx
the equation will proportional,
When the line passes from the origin the equation will be proportional.
Hence option A is correct.
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Its A because if the line passes through the middle of the square is a proportional relationship.
Henry runs 8 miles in 47 minutes. How many miles does he run per minute?
Answer:
8 / 47 = 0.17021276595 btw u can just use a calculator
math assignment help
Since the abs. val. graph points down, there has to be a -1 outside the abs val symbol.
Since it's also going through (1,-3) and (-1,-3) instead of (1,-1) and (-1,-1), it's been stretched by a factor of 3.
So y = -3•|x| works.
What is the distance between the points
(-7,1) and (-7,-5) on the coordinate
plane?
The distance between the points (-7,1) and (-7,-5) on the coordinate plane is 6 units.
The distance formula is a useful tool in many areas of mathematics and science, such as geometry, physics, and engineering. It can be used to find the distance between two points in any number of dimensions, not just two dimensions as in the coordinate plane In addition, the distance formula can also be used to find the length of a line segment in the coordinate plane, which is just the distance between its endpoints. This can be useful in finding the shortest distance between two points, or in finding the length of a path that connects two points.
The distance formula is a mathematical equation used to find the distance between two points in the coordinate plane. It makes use of the Pythagorean theorem, which states that in a right triangle, the sum of the squares of the lengths of the two shorter sides is equal to the square of the length of the longest side (the hypotenuse).
In the coordinate plane, we can represent each point by its coordinates (x1, y1) and (x2, y2). The distance between the points is then given by the equation:
distance = sqrt((x2 - x1)^2 + (y2 - y1)^2)
where (x1, y1) and (x2, y2) are the coordinates of the two points.
For the points (-7,1) and (-7,-5), we can plug in the values into the equation:
distance = sqrt((-7-(-7))^2 + (-5-1)^2) = sqrt(0^2 + (-6)^2) = sqrt(36) = 6
So the distance between the points (-7,1) and (-7,-5) on the coordinate plane is 6 units.
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The width of a rectangle is 6 units less than the length. The area of the rectangle is 7 square units. What is the width, in units, of the rectangle?
Answer:
Step-by-step explanation:
A = bh.
To solve, find factors of seven the fit the description such as 7 and 1.
The length is 7, the width is 6 units less.
So, the width is 1un and the length is 7un.
Some please help, statistics class
The value of the probability P(z < -2.6) is 0.0046612
How to evaluate the probabilityFrom the question, we have the following parameters that can be used in our computation:
Distribution = Standard distributionP(z < -2.6)To calculate the probability P(z < -2.6), we make use of a graphing calculator
Using the above as a guide, we have the following:
P(z < -2.6) = 0.0046612
Hence, the value is 0.0046612
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Helpppppp
If p is the perimeter of the given diagram, formulate a formula for p in terms of a and b
Answer:
2×(a+b)
Step-by-step explanation:
to find the perimeter of a rectangle, we should use this formula
This is my answer so if I am wrong then correct me
How many solutions are there? 1/2x-1/3y=5 x=2/3y+10
A. There are no solutions.
B. There is one solution.
C. There are infinitely many solutions.
D. It is not possible to determine the number of solutions.
Answer:
Step-by-step explanation:
this is a simultaneous equation type. so there are only 2 solutions. one for X and one for Y
The area of a rectangle is
[tex] {75}cm^{2} [/tex]
The length of the rectangle is (√2 +5). Calculate the width of the rectangle
Answer:
[tex]width = \dfrac{75*(5-\sqrt{2}}{23}[/tex]
Step-by-step explanation:
To find the width of the rectangle, divide the area by the length.
[tex]Width = \dfrac{area}{length}[/tex]
[tex]=\dfrac{75}{\sqrt{2}+5}\\\\\\\text{To rationalize, multiply the denominator and the numerator by } \ \sqrt{2}-5[/tex]
[tex]=\dfrac{75* (5 - \sqrt{2})}{(5+\sqrt{2})(5-\sqrt{2})}\\\\\\=\dfrac{75*(5-\sqrt{2})}{5^2 - (\sqrt{2})^2}\\\\\\=\dfrac{75(5-\sqrt{2})}{25-2}\\\\\\=\dfrac{75*(5-\sqrt{2})}{23}[/tex]
Answer:
Let the width of the rectangle be w. Then we have:
[tex]lw = 75[/tex]
[tex]w(\sqrt{2} + 5) = 75[/tex]
[tex]w = \frac{75}{\sqrt{2} + 5}[/tex]
Multiplying both the numerator and denominator by [tex]\sqrt{2} - 5[/tex], we get:
[tex]w = \frac{75(\sqrt{2} - 5)}{(\sqrt{2} + 5)(\sqrt{2} - 5)}[/tex]
Simplifying the denominator, we get:
[tex]w = \frac{75(\sqrt{2} - 5)}{-1}[/tex]
[tex]w = -75\sqrt{2} + 375[/tex]
Therefore, the width of the rectangle is approximately 264.1 cm.
Probability: How do I go about this question
The value of k that makes the probability distribution valid is given as follows:
k = 4.
How to obtain the value of k?To obtain the value of k, we must consider that the integral assumes a value of 1 over it's entire domain, that is:
[tex]\int_{-1}^{1} F(x) dx = 1[/tex]
The function F(x) is given as follows:
F(x) = (x + 2)/k.
Considering 1/k as a constant, the integral is given as follows:
1/k[0.5x² + 2x].
At x = 1, the integral is given as follows:
0.5 + 2 = 2.5.
At x = -1, the integral is given as follows:
0.5 - 2 = -1.5.
Applying the Fundamental Theorem of Calculus, the result of the integral is given as follows:
1/k[2.5 - (-1.5)] = 4/k.
As the result of the integral must be of one, the value of k is obtained as follows:
4/k = 1
k = 4.
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Your family purchases a new car for $20,000. Its value decreases by 15% each year. During what interval does the car's value exceed $10,000? Round your answer to the nearest hundredth.
From the time it was purchased until about years later.
The value has now surpassed $10,000, the car was worth more than $10,000 from year 3 until year 2, or 1 year.
Rounding to the nearest hundredth, the interval is 1 year.
Using the following formula, we can determine the car's value each year:
value = 20000 * [tex](1 - 0.15)^year[/tex]
We're looking for the years where the value exceeds $10,000.
Let's start by determining the car's value after 1 year:
value = 20000 * [tex](1 - 0.15)^1[/tex] = 20000 * 0.85 = 17000
We need to keep lowering the value since it will eventually exceed $10,000 because the value after one year is less than $10,000.
After 2 years:
value = 20000 * (1 - 0.15)² = 20000 * 0.85² = 14525
Still less than $10,000.
After 3 years:
value = 20000 * (1 - 0.15)³ = 20000 * 0.85³ = 12318.75
Since the value has now surpassed $10,000, the car was worth more than $10,000 from year 3 until year 2, or 1 year.
Rounding to the nearest hundredth, the interval is 1 year.
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a sports uniform costs 160 dollars. For Christmas is sold at a discount of 35%.The cost of the sports uniform with the discount is??
Answer: 104
Step-by-step explanation:
To put it simply, let's say 100% is 160 dollars. When Christmas arrived, it was sold with a discount of 35%. This means we deduct 35% from 100% which is 65%. We then find 65% of 160 dollars, which is 104.
Hope that helps, if not, then please reply back :)
In the next three days, 2000 people will move to Florida. How many people, on average, will move to Florida each hour? Express your answer to the nearest whole number.
Answer: 10
Step-by-step explanation:
because
Dante is working at Pizza Hut and trying to impress his boss for a promotion. His boss has been trying to figure which of these pizzas has an area closest to 450 square inches, and he came to Dante for help finding the answer because Dante is really good at math. Which one of these pizzas did he determine has an area closest to 450 square inches? (Use 3. 14 for pi)
Pizza 4 has the area closest to 450 square inches.
What is an area?
The size of a region on a surface is measured in area. Surface area refers to the area of an open surface or the boundary of a three-dimensional object, whereas area of a plane region or plane area refers to the area of a form or planar lamina.
To determine the pizza with the area closest to 450 square inches, Dante needs to calculate the area of each pizza. The formula for the area of a circle is A = πr², where r is the radius of the pizza.
Here are the areas of the four pizzas:
Pizza 1: A = π * 10² = 314 square inches
Pizza 2: A = π * 9² = 254.34 square inches
Pizza 3: A = π * 11² = 379.94 square inches
Pizza 4: A = π * 12² = 452.16 square inches
Out of the four pizzas, Pizza 4 has the area closest to 450 square inches. The area of Pizza 4 is 452.16 square inches, which is only 2.16 square inches greater than 450.
So, Pizza 4 has the area closest to 450 square inches.
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For a printing company, the cost of printing business cards is a linear function, C(x) = 0. 05x + 20, where x is the number of cards printed. What is the cost of printing 950 business cards? 15 points
The cost of printing x business cards can be represented by the linear function C(x) = 0.05x + 20. The cost of printing 950 business cards is $67.50.
The cost of printing business cards is a linear function, C(x) = mx + b, where C(x) is the cost of printing x business cards, m is the rate at which the cost increases as the number of cards increases, and b is the constant term or the cost of printing zero business cards. In this case, m = 0.05 and b = 20.
The equation C(x) = 0.05x + 20 represents the cost of printing x business cards, where x is the number of cards printed. The term 0.05x represents the cost of printing x cards at a rate of $0.05 per card, and the term 20 represents a fixed cost of $20, regardless of the number of cards printed.
To find the cost of printing 950 business cards, we simply substitute x = 950 into the equation:
C(950) = 0.05 * 950 + 20
C(950) = 47.5 + 20
C(950) = 67.5
Therefore, the cost of printing 950 business cards is $67.50.
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Daniel's credit card has a minimum monthly payment of 2.78% of the card's balance. If Darryl currently owes $1,452.28, what is his minimum payment, to the nearest cent? Write the number below without the dollar sign rounded to the nearest cent.
The minimum payment of the credit card will be $40.37.
The percentage is defined as representing any number with respect to 100. It is denoted by the sign %. The percentage stands for "out of 100." Imagine any measurement or object being divided into 100 equal bits.
Given that Daniel's credit card has a minimum monthly payment of 2.78% of the card's balance. If Darryl currently owes $1,452.28.
The minimum payment will be calculated as;-
Minimum payment = ( 1452.28 ) x ( 2.78 / 100 )
Minimum payment = $40.37
Therefore, the minimum amount for the credit card bill is $40.37.
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The following times, in seconds, were recorded for a mouse to run through a maze 34, 12, 10, 11, 12, 13, 9
Find the median and the mean
Suppose every piece of data in a set is increased by 20 after treatment. how does this affect the values of the mean and median
The median of the data set is 12.
The mean is 11.29.
Increasing every piece of data by the same value increases the mean and median by the same amount.
How to Find the Median and Mode?The median of the data set is the middle value when the data is arranged in numerical order. To find the median of the data set, we need to arrange the data in increasing order: 9, 10, 11, 12, 12, 13, 34. The median of this data set is 12.
The mean of the data set is the average of all the values. To find the mean, we need to add up all the values and divide by the number of values: (9 + 10 + 11 + 12 + 12 + 13 + 34) / 7 = 11.29.
If every piece of data in the set is increased by 20 after treatment, the new values are 29, 30, 31, 32, 32, 33, 54. The new median is 32 and the new mean is 35.29.
When every piece of data is increased by the same value, the mean and median will increase by the same amount.
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Find the product of all integer divisors of 105 that also divide 14
To find the product of all integer divisors of 105 that also divide 14, we need to first find all the divisors of 105 and then find which of those divisors also divide 14.
The divisors of 105 can be found by listing all the positive integers that divide 105 exactly. To do this, we can use a divisibility test for each number up to the square root of 105:
Does 1 divide 105 exactly? Yes, so 1 is a divisor of 105.
Does 3 divide 105 exactly? Yes, so 3 is a divisor of 105.
Does 5 divide 105 exactly? Yes, so 5 is a divisor of 105.
Does 7 divide 105 exactly? Yes, so 7 is a divisor of 105.
Does 11 divide 105 exactly? No.
Does 15 divide 105 exactly? Yes, so 15 is a divisor of 105.
Does 21 divide 105 exactly? Yes, so 21 is a divisor of 105.
Does 35 divide 105 exactly? Yes, so 35 is a divisor of 105.
Since 105 is a composite number, the divisors of 105 can also be found by multiplying pairs of the divisors found above. This gives us the following divisors of 105:
1, 3, 5, 7, 15, 21, 35, 105
Next, we need to find which of these divisors also divide 14. To do this, we can perform a similar divisibility test for each divisor:
Does 1 divide 14 exactly? Yes, so 1 is a divisor of 14.
Does 3 divide 14 exactly? No.
Does 5 divide 14 exactly? No.
Does 7 divide 14 exactly? Yes, so 7 is a divisor of 14.
Does 15 divide 14 exactly? No.
Does 21 divide 14 exactly? No.
Does 35 divide 14 exactly? No.
So, the divisors of 105 that also divide 14 are 1 and 7. To find the product of these divisors, we simply multiply them:
1 * 7 = 7
Thus, the product of all integer divisors of 105 that also divide 14 is 7.
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Help! View picture!!
Which equation represents the graft function (0,3) (1,1)
to get the equation of any straight line, we simply need two points off of it, let's use those two in the picture above.
[tex](\stackrel{x_1}{0}~,~\stackrel{y_1}{3})\qquad (\stackrel{x_2}{1}~,~\stackrel{y_2}{1}) ~\hfill \stackrel{slope}{m}\implies \cfrac{\stackrel{\textit{\large rise}} {\stackrel{y_2}{1}-\stackrel{y1}{3}}}{\underset{\textit{\large run}} {\underset{x_2}{1}-\underset{x_1}{0}}} \implies \cfrac{ -2 }{ 1 } \implies - 2[/tex]
[tex]\begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{3}=\stackrel{m}{- 2}(x-\stackrel{x_1}{0})\implies {\Large \begin{array}{llll} y=-2x+3 \end{array}}[/tex]
Which is a better estimate for the volume of a salt shaker?
Total volume of the salt shaker is 56.52+706.5=763.02 cm³
What is the area and volume of a right circular cylinder?The volume of a Right Circular Cylinder. In general, the volume of a right cylinder is the area of the base times the height of the cylinder. The area of the circular base is given by the formula A = πr2. Substitute to get V = πr²h.
Given here: The volume of a salt shaker
The radius of the salt shaker which is 5 cm
Thus the volume of the cylinderical salt shaker is = π×3²×5²
=706.5 cm³
and the volume of the hemisphere at the top is= (2/3)πr³
=56.52 cm³
Hence, Total volume of the salt shaker is 56.52+706.5=763.02 cm³
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The complete question is Which is a better estimate for the volume of a salt shaker? where radius =3 cm and height =5 cm
what does the statement M (8) < M (4) mean?
M(8)<M(4) means that 8th drive was less expensive than 4th drive.
How to determine the meaning?M(n) denotes Aiden's fee (in dollars) for his n^th drive on a certain day.
The reason for the m(8) is that the model fee for this is nth driver for a certain day. this implies M (8) < M (4)
M(8) is Aiden's fee for his 8th drive;
M(4) is Aiden's fee for his 4th drive
In conclusion, Aiden's fee for his 8th drive is greater than his drive for the 4th drive
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