Answer:
f(n) = 32 - 8n
Step-by-step explanation:
24, 16, 8, 0
f(n) = 24 - 8 x (n-1)
f(n) = 32 - 8n
SOMEONE HELP ME 40 POINTS! A central angle measuring 90° Intercepts an arc In a circle whose radlus is 8.
What Is length of the arc of the circle formed by this central angle? Round the length of the arc to the nearest hundredth
of unit.
Answer:
12.56 units------------------------
The 90° arc is representing the quarter of circle.
Its length is the quarter of the circumference of circle with radius of 8.
The arc length is:
C/4 = 2πr/4 = 2*3.14*8/4 = 12.56use the conversion factor along with the symmetry of the circle to complete the degree or radian measure of the missing angles. give the answer in exact, simplified form.
The conversion factor along with the symmetry of the circle to complete the degree or radian measure of the missing trigonometric angles = 90° = 90° × (π/180°) = π/2.
A degree, which is referred to as the degree of arc or arc degree, is the unit of measuring a plane angle. It is denoted by the symbol (°). 360° is the angle measure for a complete rotation. A complete rotation is denoted by the angle measuring 360° and the instrument used to measure an angle in degrees is known as the protractor.
Radian is another unit of measuring an angle in geometry. One radian is the angle that is formed at the center of a circle by an arc whose length is equal to the radius 'r' of the circle. One complete counterclockwise rotation is equal to 2π in radians. The below-given image shows the measure of one radian as 57.296°. Also, a right angle is expressed as π/2 radians, and a straight angle is expressed as π radians.
We can compare the measure of angles for a complete rotation in radian and degrees as,
360 Degrees = 2π Radians
180 Degrees = π Radians
In order to convert degrees to radians manually, we use the formula: Radians = Degrees × (π/180°). We can follow the steps given below to calculate the measure of an angle given in degrees to radians.
We know, 1°= (π)/180 radians. So, to convert the angle given in degrees to radians we multiply it with π/180°.
Angle in Radians = Angle in Degrees × π/180°.
Simplify the values and express the answer in radians.
Example: Convert 90 degrees to radians.
Solution: 90° = 90° × (π/180°) = π/2.
Therefore,
The conversion factor along with the symmetry of the circle to complete the degree or radian measure of the missing trigonometric angles = 90° = 90° × (π/180°) = π/2.
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A website has 900,000 members. The number y of members increases by 8% each year.
a. Write an exponential function that represents the website membership after t years.
b. How many members will there be after 5 years? Round your answer to the nearest ten thousand.
a. y=
b. about (blank) members
1,156,530 members were in attendance in 2016. You can round it to $1,160,000.
What is an exponential function?The exponential function is represented mathematically by the formula F(x)=exp or e(x). Unless otherwise specified, the phrase generally refers to a real variable's positive-valued function, though it can also be applied to complex numbers and other mathematical objects like matrices and Lie algebras.One of mathematics's most crucial functions is the exponential function (though it would have to admit that the linear function ranks even higher in importance). As the independent variable in an exponential function, the exponent is used. F(x)=2x is a straightforward illustration.Functions that take the form f(x) = axe are referred to as exponential functions. where an is a constant and x is a variable.
500,000 people are registered members of the website as of 2010.
Y members grew by 15% annually.
Members and year have an exponential relationship that is
y = 500,000(1.15)^t
Then in 2016 the number of members present are given by,
y = 500,000(1.15)^6 = 1,156,530.
Hence, 1,156,530 members present in 2016. It can rounded to 1,160,000.
The complete question is:
A website 500,000 members in 2010. The number y of members increases by 15% each year. Write an exponential growth function that represents the website membership t years after 2010. How many members will there be in 2016? Round your answer to the nearest ten thousands
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Looking at the logarithmic form, does the 3 in log_a3 correspond to x or y?
Looking at the logarithmic form, does log_a3 (all of it) correspond to x or y?
Looking at the logarithmic form [tex]log_a3[/tex].
3 corresponds to x.
What is an equation?An equation is a mathematical statement that is made up of two expressions connected by an equal sign.
Example:
2x + 3 = 8 is an equation.
We have,
[tex]log_a3[/tex]
This means,
y = [tex]log_a3[/tex]
Where x = 3
So,
3 correspond to x
Thus,
3 correspond to x.
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Isabelle invests $4350 at 7.6%/a compounded quarterly. How long will it take for her investment to grow to$10 000?
it will take Isabelle about 10.33 years for her investment to grow to $10,000.
To calculate the time it takes for Isabelle's investment to grow to $10,000, we can use the formula for compound interest:
A = P * (1 + r/n)^(nt)
where A is the amount of money at the end of t years, P is the initial amount (4350), r is the interest rate per year (7.6%), n is the number of times compounded per year (4, since it's compounded quarterly), and t is the number of years.
We can rearrange the formula to solve for t:
t = (log(A/P)) / (log(1 + r/n))
Plugging in the values, we get:
t = (log($10,000 / $4350)) / (log(1 + 7.6% / 4))
Using a calculator, t = approximately 10.33 years.
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Melanie and noah are baking a birthday cake for franceca. The recipe call for 3/4 meauring cup and noah ha a 1/8 meauring cup. Which cup hould they ue
They should use 6 cup of Noah's measuring cup
What are algebraic operations?They are the set of numbers and symbols that are related by the different mathematical operation signs such as addition, subtraction, multiplication, division among others.
To solve this problem we must perform the following algebraic operations with the given information
Information about the problem:
Recipe call = 3/4Noah's cup = 1/8Number of cup = ?Calculating the number of cup the should use:
Number of cup = Recipe call / Noah's cup
Number of cup = (3/4) / (1/8)
Number of cup = 3*8 / 4*1
Number of cup = 24/4
Number of cup = 6
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Correctly written question:
Melanie and Noah are baking a birthday cake for Francesca. The recipe call for 3/4 measuring cup and Noah has a 1/8 measuring cup. Which cup should they use?
Which expression is equivalent to 7.5(22 + 1.2s)?
[tex]\huge\text{Hey there!}[/tex]
[tex]\huge\textbf{Original equation:}[/tex]
[tex]\mathsf{7.5(22 + 1.2s)}[/tex]
[tex]\huge\textbf{DISTRIBUTE 7.5 within the}\\\\\huge\textbf{parentheses:}[/tex]
[tex]\mathsf{7.5(22 + 1.2s)}[/tex]
[tex]\mathsf{= 7.5(22) + 7.5(1.2s)}[/tex]
[tex]\mathsf{= 165 + 9s}[/tex]
[tex]\mathsf{= 9s + 165}[/tex]
[tex]\huge\text{Therefore your answer should be:}[/tex]
[tex]\huge\boxed{\mathsf{9s + 165}}\huge\checkmark[/tex]
[tex]\huge\text{Good luck on your assignment \& enjoy your day!}[/tex]
How does this problem work? i need an explanation too please thanks
The solution to the squared expression using the concept of squared numbers is; A: 144
How to divide squared numbers?When we say a number is squared, what it simply means is that the number is multiplied by itself. Thus, for example;
z² = z × z
y² = y × y
b² = b × b
We have the expression as;
(8² × 6²)/4²
Using the concept of squared numbers gives;
(8 × 8 × 6 × 6)/(4 × 4)
= (2 × 2 × 6 × 6)
= 144
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Help plsssssssssssssssssss
Answer: Its c
Step-by-step explanation: -2 - 6 is -8
a plane takes 6 hours to fly from san francisco to new york, and 5 hours to return back. the plane's airspeed is 880 miles per hour, from new york to san francisco. what is the speed of the wind
The speed of wind is 73.335 miles per hour. The distance between San Francisco and New York remains constant and we a considering wind speed is also constant.
It is known that,
The relation between distance , speed
the distance travelled = speed × time
Put the values of given data in above formula.
Then 880×5= 4400 miles
the distance between NY to SF = 4400 miles.
Speed at which the plane was travelling from SF to NY = 4400/6 =733.33 miles per hour.
Differences in the speed is caused by the relative wind speed, which equals (880-733.33)/2 = 146.67/2 =73.335 miles per hour
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help me with this problem pls
Answer:
see below
Step-by-step explanation:
z+66+z+69+43z=180
so 45z=180-66-69 = 45
so z=1
so angle U= 43 its opposite side length ST is the smallest
same logic for the other 2.
66+1=67
69+1=70
so ST<US <TU
7. What is the equation of a quadratic function P with rational
coefficients that has a zero of 3 + i?
The equation of a quadratic function P with rational coefficients that has a zero of (3 + i) is p(x) = x² - 6x + 10.
What is a quadratic function?
A polynomial function with one or more variables, where the largest exponent of the variable is two, is referred to as a quadratic function. It is also known as the polynomial of degree 2 since the greatest degree term in a quadratic function is of second degree.
The complex number value is given as (3 + i)
Since, x = (3 + i) is a complex zero of p(x), then -
It is known that , the complex zeros occur in pair.
So, x=(3 - i) is also a complex zero of the quadratic function of p(x).
So, {x − (3 + i)} and {x − (3 - i)} are the factors of p(x).
Substitute the values to form a quadratic function -
p(x) = {x − (3 + i)}{x − (3 - i)}
Open the brackets and evaluate -
p(x) = (x - 3 + i)(x - 3 - i)
Use the arithmetic operation of multiplication -
p(x) = x(x - 3 - i) - 3(x - 3 - i) + i(x - 3 - i)
p(x) = x² - 3x - ix - 3x + 9 + 3i + ix - 3i - i²
Collect all the like terms -
p(x) = x² - 3x - 3x - ix + ix + 9 + 3i - 3i - i²
p(x) = x² - 6x + 9 - i²
Substitute the value of i² = -1 into the equation -
p(x) = x² - 6x + 9 - (-1)
p(x) = x² - 6x + 9 + 1
p(x) = x² - 6x + 10
Therefore, the quadratic function is x² - 6x + 10.
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the lengths of the perpendiculars drawn to the sides of a regular hexagon from an interior point are $4$, $5$, $6$, $8$, $9$, and $10$ centimeters. what is the number of centimeters in the length of a side of this hexagon? express your answer as a common fraction in simplest radical form.
The number of centimeters in the length of a side of this hexagon is 14√3/3 centimeters.
The lengths of the perpendiculars drawn to the sides of a regular hexagon from an interior point are 4, 5, 6, 8, 9 and 10 centimeters.
Finding the side of this hexagon using the Pythagorean Theorem
Let the side of the hexagon is s.
So according to theorem
s^2 = (s/2)^2 + 7^2
Now solving
s^2 = s^2/4 + 49
Subtract 49 on both side, we get
s^2 - 49 = s^2/4
Multiply by 4 on both side, we get
4s^2 - 196 = s^2
Subtract s^2 + 196 on both side, we get
3s^2 = 196
Divide by 3 on both side, we get
s^2 = 196/3
Taking square root on both side, we get
s = 14/√3
Multiply and divide by √3
s = 14√3/3
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A cylindrical rod measures 4 inches long and the circumference of one of its bases is 12π inches. the rod is cut into two equally-sized pieces and then all surfaces are painted. what is the area that is painted? use π≈3.14.
The total surface area painted is 644.16 square inches.
Let the radius of the cylindrical rod be r. The circumference of the base is given as 12π, which can be converted to the diameter as:
diameter = circumference / π = 12π / π = 12 inches.
So, the radius of the cylindrical rod is half of that. That is 6 inches.
The area of one base of the cylindrical rod can be calculated as π [tex]r^2[/tex], which is:
π * [tex]6^2[/tex] = 3.14 * 36 = 113.04 square inches.
The surface area of one-half of the cylindrical rod can be calculated by:
2 * π * r * l + 2 * π * [tex]r^2[/tex], where l is the length of the rod.
Since the length of the rod is 4 inches, the surface area of one-half of the cylindrical rod can be calculated by:
2 * π * 6 * 4 + 2 * 113.04 = 96 + 226.08 = 322.08 square inches.
Given that two equally sized pieces are cut, the total surface area painted would be 2 * 322.08 = 644.16 square inches.
Therefore, the total surface area painted is 644.16 square inches.
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marie needs 380 quarts of soil to fill her vegetable planter. a bag of soil contains 64 quarts and costs $9.50. how much will it cost marie to fill the planter with soil
The cost Marie to fill the planter with soil to fill her vegetable planter is $57.
A bag of soil has 64 quarts and is costing 9.50
And required soil is 380 quarts so,
380 → X
64 → 9.50
By using cross multiplication method,
64 × X = 380 × 9.50
X = 3610/64
X = 56.4
X ≈ $57
Cross multiplying is the process of multiplying the denominator of the second fraction by the numerator of the first fraction, which is on one side of the equals to symbol. In a similar way, the denominator of the first fraction is multiplied by the numerator of the second fraction. The butterfly method, also referred to as cross-multiplication, has another name.
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∫9cosxdx= 9sin(x) c. ∫(n 2)πnπ 9cosxdx= 9sin(n*pi 2pi)-9sin(npi) , where n is an arbitray integer.
9sin is the integral of 9cosx (x). 9sin(n*/2) - 9sin(n) is the integral of (n2)* to n* in the expression for 9cosx.
A fundamental trigonometric integration is the integral of 9cosx. The trigonometric substitution formula and the integral of cosx formula, sin, can both be used to calculate this integral (x). This indicates that 9sin is the integral of 9cosx (x).The integral of 9cosx from (n2)* to n* is a little more challenging. The trigonometric substitution formula and the integral of cosx formula can both be used to solve this integral. Sin is the integral of cosx (x). The integral of (n2)* to (n*) of 9cosx is therefore 9sin(n*/2) - 9sin(n). Accordingly, the integral of the function from n* to n* is equal to the difference between the integrals of the functions from 0 to n* and from 0 to n*.
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what is the difference between k means clustering and hierarchical clustering?
K-means clustering is an iterative algorithm that partitions a data set into k clusters, where k is predefined.
It works by first randomly selecting k points as cluster centers, also known as centroids. All points are then assigned to the nearest cluster center based on a distance metric, such as Euclidean distance. This process is repeated until the centroids no longer move, which is when the clusters have stabilized. The formula for calculating the distance between two points is d = sqrt((x1-x2)^2 + (y1-y2)^2).
Hierarchical clustering is a type of clustering algorithm that builds a hierarchy of clusters. It starts by assigning each point to its own cluster, then combines the two closest clusters and repeats the process. The calculation used to determine the distance between two clusters is the distance between their two closest points, also known as the single linkage method. The formula for calculating the distance between two clusters is d = min(d1, d2, ..., dn), where d1, d2, ..., dn are the distances between the two closest points in the two clusters.
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640 word it take him 4 minute how long would it take to read 800 at the ame peed
The person will read 800 words in 5 minutes if he does so at the same speed.
The current average speed of the person will be given by the formula -
Average speed = number of words read ÷ total time taken
Keep the values in formula
Average speed of the person = 640/4
Performing division on Right Hand Side of the equation
Average speed of the person = 160
Now, using the same formula to find the time.
Total time required = 800/160
Performing division on Right Hand Side of the equation
Total time required = 5
Thus, it will take him 5 minutes to read.
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I need to find the slope of each line and show my work for it
Answer:
3) m = -3/2
4) m = 3/2
5) m = 5/3
6) m = 7/3
7) m = -3
8) m = 7/3
Step-by-step explanation:
Slope = rise/run or (y2 - y1) / (x2 - x1)
3/ ( -4, 0) ( -2, -3)
The y decrease by 3, and the x increase by 2, so the slope is
m = -3/2
4/ (2,0) (0, -3)
The y decrease by 3, and the x decrease by 2, so the slope is
m = -3/-2 = 3/2
5/ (-1,2) (-4, -3)
The y decrease by 5, and the x decrease by 3, so the slope is
m = -5/-3 = 5/3
6/ (4,3) (1, -4)
The y decrease by 7, and the x decrease by 3, so the slope is
m = -7/-3 = 7/3
7/ (1,2) (3, -4)
The y decrease by 6, and the x increase by 2, so the slope is
m = -6/2 = -3
8/ (0,3) (-3, -4)
The y decrease by 7, and the x decrease by 3, so the slope is
m = -7/-3 = 7/3
a law firm is going to designate associates and partners to a big new case. the daily rate charged to the client for each associate is $500 and the daily rate for each partner is $1400. the law firm designated 3 times as many associates as partners to the case and was able to charge the client $5800 per day for these lawyers’ services. Determine the number of associates assigned to the case and the number of patented assigned to the case.
Answer:
there was 6 associates assigned to the case and 2 partners
Step-by-step explanation:
what i did was did 1400 times 2 and 500 times 6. then i did 6 divided by 3 which gave me 2. So there are 3 times more associates.
Hope this helped
Here's a new question:
Answer: i think its A
UWUexplain the dangers of utilizing only a subset of the performance equation as a performance metric. use examples if necessary.
the dangers of utilizing only a subset of the performance equation as a performance metric
SUBSET ARE
Clock rate of P1 = 4 GHz
Clock rate of P2 = 3 GHz
Average CPI of P1 = 0.9
Number of Instructions = 5.0E9 = 5 × 10^9
Clock rate of P2 = 3 GHz
Average CPI of P2 = 0.75
Number of Instructions = 1.0E9 = 10^9
To find: If the computer with largest clock rate has the largest performance?
As given in the question, clock rate of P1 = 4 GHz which is greater than clock rate of P2 = 3 GHz
According to the performance equation:
CPU Time = instruction count * average cycles per instruction/ clock rate
CPU Time = I * CPI / clock rate
Where instruction count refers to the number of instructions.
It is not true that computer with the largest clock rate as having the largest performance.
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Consider the two functions below
Function A:
A hiker starts tracking her climb 4/5 mile from the trailhead and climbs at a rate of 2 miles per hour.
(FUNCTION B IN PHOTO)
Select all true statements about function A and function B.
The true statements are Function B has greater slope, Function A has greater y intercept and Function B has greater x intercept.
What is Slope?Slope of a line is the ratio of the change in y coordinates to the change in the x coordinates of two points given.
We have to first find the linear equations of the functions.
Given for function A,
Let x be the number of hours.
Function A can be represented as f(x) = 4/5 + 2x
Equation in slope intercept form is y = mx + c, where m is the slope and c is the intercept along Y axis.
Y intercept is the point of the line where it touches the Y axis. x coordinate will be zero here.
x intercept is the point of the line where it touches the X axis. y coordinate will be zero here.
y = 2x + (4/5), in slope intercept form.
Here 2 is the slope and 4/5 is the y intercept.
When y = 0, 2x + (4/5) = 0, then x = -2/5
x intercept = -2/5
For function B,
we have when x = 0, f(x) = y = 2/3
y intercept = 2/3
Slope = [(2/3) - (-25/3)] / [0 - -3]
= [27/3] / 3
= 9 / 3
= 3
Equation in slope intercept form of function B is,
y = 3x + 2/3
When y = 0, 3x + 2/3 = 0, then x = -2/9
x intercept = -2/9
So function B has greater slope as slope is 3 for B and 2 for A.
Function A has greater y intercept as y intercept for A is 4/5 and for B is 2/3.
Function B has greater x intercept as x intercept is -2/9 for B and -2/5 for A.
Hence the correct options are function B has greater slope, Function A has greater y intercept and Function B has greater x intercept.
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What additional information is needed to show that ABC ≅ DEF by SSS?
Answer:
What additional information do you need to prove ∆ ABC ≅ ∆ def by the SSS postulate description? So, △ABC ≅ △DEF. If three sides of one triangle are congruent to three sides of a second triangle, then the two triangles are congruent. If — AB ≅ — DE, — BC ≅ — EF, and — AC ≅ — DF, then △ABC ≅ △DEF.
a rectangle is 10 cm long and 7 cm wide calculate the length of a diagonal
if x and y are nonzero real numbers such that |xy|<1, what is the sum of the infinite series ∑n=1[infinity]5x2(xy)n−1 ? (A) 5/1-xy(B) 5X/ y (1-xy) (C) 5X^2/1-XY(D) 5X^3Y/1-XY
The sum of the infinite series ∑n=1[infinity] 5x²(xy)ⁿ⁻¹ is 5/1-xy
The sum of an infinite series is the value that the series approaches as the number of terms in the series increases indefinitely.
In this particular problem, we are asked to find the sum of the infinite series
=>∑n=1[infinity] 5x²(xy)ⁿ⁻¹
A geometric series is a series where each term is a constant multiple of the previous term. In this case, the common ratio is xy.
The sum of an infinite geometric series can be calculated using the formula:
=> S = a / (1 - r)
where a is the first term in the series and r is the common ratio.
In this problem, the first term, a, is 5x² and the common ratio, r, is xy.
We know that |xy| < 1, which means that the absolute value of xy is less than 1.
This is important because it guarantees that the series will converge (approach a finite value) as the number of terms increases.
Using the formula for the sum of an infinite geometric series, we get:
S = 5x² / (1 - xy) = (A) 5/1-xy.
Therefore, the correct option is (a).
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In ΔKLM, l = 84 inches, k = 40 inches and ∠K=22°. Find all possible values of ∠L, to the nearest degree
Possible values of ∠L, to the nearest degree is ∠L = 158° or ∠L = 74°
What are the possible values of ∠L, to the nearest degree?We can use the Law of Cosines to solve for ∠L.
The Law of Cosines states that for a triangle with side lengths a, b, and c and opposite angles A, B, and C, c² = a² + b² - 2ab cos(C).
Therefore, we can substitute in the given information to solve for ∠L.
c² = l² = 84² = 7056
a² = k² = 40² = 1600
b² = m² = unknown
2ab cos(C) = 2(40)(m) cos(22°)
Solving for m, we get
m² = 7056 - 1600 + 80cos(22°) = 5496 + 80cos(22°)
Taking the square root of both sides, we get
m = √(5496 + 80cos(22°))
Now, we can use the Law of Cosines again to solve for ∠L.
m² = l² + k² - 2lk cos(L)
Substituting in the values and solving for cos(L), we get
cos(L) = (l² + k² - m²)/(2lk)
cos(L) = (84² + 40² - (√(5496 + 80cos(22°)))²)/(2(84)(40))
cos(L) = 0.7860
Finally, we can use the inverse cosine to find the angle ∠L, to the nearest degree.
cos⁻¹(0.7860) = 74° or 158°
Therefore, ∠L = 74° or 158°.
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can someone help me? and also write the answer down so i can copy it please thank you
Answer:
You run at a faster rate. The rate is 19 feet per second or about 5.7912 meters per second.
Step-by-step explanation:
The expression representing the friend says the friend is running at a speed of 14 feet per second with a head start of 50 feet. The table show that you run at a speed of 38 feet per 2 seconds otherwise said as 19 feet per second.
19 > 14, so you run faster.
I really need help with this question . Please and thank you
Answer:
8.5m
Step-by-step explanation:
Im sorry guys just need this and I should get an A is the answer A,B,C, or D thanks much gratitude
Answer:
C
Step-by-step explanation:
For the second graph
the equation should be:
y = 1/2 x^2
Which makes the graph true.
You can try plug numbers into x to check your answer.