Answers
The explicit formula for the geometric sequence would be [tex]a_n =10000.87\times (0.95)^{n-1}[/tex].
What is a geometric sequence?
In mathematics, a geometric progression, also known as a geometric sequence, is a sequence of non-zero numbers where each term after the first is found by multiplying the previous one by a fixed, non-zero number called the common ratio.
Given:
[tex]a_4=8573.75\\\\a_6=7731.81[/tex]
Now by using the formula for the nth term of a GP, we get
[tex]a_n = ar^{n-1}\\\\a_4=ar{4-1}\\\\8573.75=ar^3[/tex]
Now for n = 6, we get
[tex]a_n = ar^{n-1}\\\\a_6=ar{6-1}\\\\7737.81=ar^5[/tex]
Now divide we get
[tex]\frac{ar^5}{ar^3} =\frac{7737.81}{8573.35} \\\\r^2=0.9025\\\\r=0.95[/tex]
Now we can get the value of a,
[tex]8573.75=ar^3\\\\a = \frac{8573.75}{(0.95)^3}\\\\a = \frac{8573}{0.8573}\\\\a = 10000.87[/tex]
So we can prepare the explicit formula as
[tex]a_n =10000.87\times (0.95)^{n-1}[/tex]
Hence, the explicit formula for the geometric sequence would be [tex]a_n =10000.87\times (0.95)^{n-1}[/tex].
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Related Questions
An art class is making a mural for their school which has a triangle drawn in the middle. The length of the bottom of the triangle is . Another side is 8 more than times the length of the bottom of the triangle. The last side is more than the bottom of the triangle. Write and simplify an expression for the perimeter of the triangle.
Answers
Let's call the length of the bottom of the triangle x. The length of another side of the triangle is 8 more than 3 times the length of the bottom of the triangle, or 3x + 8. The last side of the triangle is y, where y is more than x.
The perimeter of the triangle can be expressed as:
x + (3x + 8) + y
Simplifying this expression gives:
4x + 8 + y
Therefore, the perimeter of the triangle can be expressed as the sum of 4 times the length of the bottom of the triangle, 8, and the length of the last side of the triangle, y.
leo has 2 less than twice the toys gen, z has. if Leo has 6 toys how many does zen have?
Answers
Answer:10
Step-by-step explanation:10 times two is twelve and minus 2 is ten.
The formula V equals 1.225 √a is used to estimate how far a person can see on a clear day,where V is the visibility in miles and A is the altitude in feet. What is Ty's visibility if out the upper window of a building with a altitude of 1,602 feet? Round your answer to the nearest whole number.
Answers
Ty's visibility if out the upper window of a building with an altitude of 1,602 feet is 49.
What is altitude?
The height of an object in relation to a planet's or a natural satellite's surface, like sea level or land. the degree to which a celestial body is elevated above the horizon.
Here, we have
Given
The formula V = 1.225 √a is used to estimate how far a person can see on a clear day, where V is the visibility in miles and A is the altitude in feet.
We have to find Ty's visibility out the upper window of a building with an altitude of 1,602 feet.
We know that
V = 1.225 √a
a = 1,602 feet.
V = 1.225 √1602
V = 49
Hence, Ty's visibility out the upper window of a building with an altitude of 1,602 feet is 49.
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PLS HURRY 30 PTS Write the math sentence as an equation: Negative six times the sum of a number and 18.3 is 27.9
−6(r + 18.3) = 27.9
−6(r − 18.3) = 27.9
−6r + 18.3 = 27.9
−6r − 18.3 = 27.9
Answers
Answer: A
Step-by-step explanation:
From the statement.
Times = Multiplication
The sum of a number and 18.3 = (r + 18.3)
Equals = 27.9
Therefore,
-6 x (r + 18.3) = 27.9
Please help, picture of question is attached
Answers
Bearing is a topic that deals with angles and distance. Thus, the required answers to the given question are:
i. Distance of 1034.2 miles
ii. Bearing of [tex]158^{o}[/tex]
The speed of an object is the rate of movement of the object with time.
speed = [tex]\frac{distance}{time}[/tex]
So that:
distance = speed x time
i. In the given question; let the initial distance covered be represented by d, so that:
d = 250 x 2
= 500 miles
ii. Let the second distance covered by the pilot be represented by D, so that:
D = 300 x 2
= 600 miles
iii. Thus let the distance to the starting point be represented by x. From Cosine rule, we have:
[tex]c^{2}[/tex] = [tex]a^{2}[/tex] + [tex]b^{2}[/tex] - 2abCos C
[tex]x^{2}[/tex] = [tex]500^{2}[/tex] + [tex]600^{2}[/tex] - 2(500 x 600)Cos [tex]140^{o}[/tex]
= 250000 + 360000 - 600000(-0,7660)
= 610000 + 459600
= 1069600
x = [tex]\sqrt{1069600}[/tex]
= 1034.22
x = 1034.2 miles
Using the Sine rule to determine the required internal angle, we have:
[tex]\frac{a}{Sin A}[/tex] = [tex]\frac{c}{Sin C}[/tex]
[tex]\frac{500}{Sin A}[/tex] = [tex]\frac{1034.22}{Sin 140}[/tex]
Sin A = [tex]\frac{500*0.6428}{1034.22}[/tex]
= 0.3108
A = [tex]Sin^{-1}[/tex] 0.3108
= 18.11
A = [tex]18^{o}[/tex]
To determine angle B, we have:
140 + 18 + B = 180 (sum of angles in a triangle)
158 + B = 180
B = 180 - 158
= 22
B = [tex]22^{o}[/tex]
Thus, the required bearing is 180 - 22 = 158
Therefore the distance and bearing required to fly to starting point are 1034.2 miles and [tex]158^{o}[/tex] respectively.
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I’m a computer graphics design program, Mario created a segment with endpoints at ( 1, 5) and ( 7, 3). He then reflected the segment about a vertical line through the segment’s own midpoint. WHAT ARE THE COORDINATES OF THE ENDPOINTS OF THE NEW SEGMENTS?
A. (5, 1) and (3, 7)
B (7, 5) and (1, 3)
C. (7, 3) and (1, 5)
D. (5, 1) and (7, 3)
Answers
The coordinates of the endpoints after the transformation is (c) (7, 3) and (1, 5)
How to determine the coordinates of the endpointsFrom the question, we have the following parameters that can be used in our computation:
Segment with endpoints at (1, 5) and (7, 3)
Also from the question, we have:
The points are reflected the segment about a vertical line through the segment’s own midpoint
When this is done, this means that the points would swap positions
So, we have the following representations
(1, 5) and (7, 3) ⇒ (7, 3) and (1, 5)
Hence, the coordinates of the endpoints is (c) (7, 3) and (1, 5)
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Whenever he is injured and unable to play, Patrice Bergeron likes to earn a little extra cash by doing some tutoring. He currently charges $50/hr and has 20 students that he works with. He has discovered that for every $5/hr he increases the price, he loses one student.
Answers
The revenue function of Patrice Bergeron earnings is R(x) = (50 + 5x)(20 -x)
How to determine the revenue function?From the question, we have the following parameters that can be used in our computation:
Charges = $50
Students = 20
Also, we have:
For every $5/hr he increases the price, he loses one student.
This means that
Charges = 50 + 5x
Students = 20 - x
So, the revenue equation is
R(x) = Charges * Students
Substitute the known values in the above equation, so, we have the following representation
R(x) = (50 + 5x)(20 -x)
Hence, the function is R(x) = (50 + 5x)(20 -x)
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Complete question
Whenever he is injured and unable to play, Patrice Bergeron likes to earn a little extra cash by doing some tutoring. He currently charges $50/hr and has 20 students that he works with. He has discovered that for every $5/hr he increases the price, he loses one student.
What is the revenue function
Let a dilation be defined by a scale factor s and center of dilation (x,y). Each of the options below represents a dilation of a polygon according to the given values of s,x and y. Which of the following dilations produce an image congruent to its pre-image. Select all that apply.
Answers
s = 1, x = 0, y = 3 and s = 1, x = 2, y = 0 produce an image congruent to its pre-image so option C and D are correct
What is dilation?
Dilation is the increase or decrease in the size of a figure by a scale factor. Rigid transformations preserve the shape of a figure. Examples of rigid transformation are reflection, rotation and translation.
Resizing an item uses a transition called dilation. Dilation is used to enlarge or contract the items. The result of this transformation is a picture with the same shape as the original. However, there is a variation in the shape's size. The initial form should be stretched or contracted during a dilatation. The phrase "scale factor" describes this transition.
Enlargement is the term used when a dilatation results in a bigger picture.Reduction occurs when a dilatation results in a smaller picture.Dilation is said to be a rigid transformation if the scale factor is equal to one.
Therefore the dilation by a scale factor of one produce an image congruent to its pre-image.
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What is the function rule? Select the correct choice and fill in any answer boxes in your choice below.
A. y=_____
(Simplify your answer. Use integers or fractions for any numbers in the expression.)
B. There is no function rule.
Answers
B. There is no function rule
Match the graph to the slope of that function
Choices:
-3/2
-1/2
2
-1/5
Also pls answer my other questions
Answers
For the first graph, slope = 1/5.
For the second graph, slope = -1/2.
For the third graph, slope = 2.
For the fourth graph, slope = 1.42.
What is the slope of the line?
The slope of a line is a measure of its steepness. Mathematically, the slope is calculated as "rise over run" (change in y divided by change in x).
[tex]m = \frac{\text{rise}}{\text{run}} = \frac{y_2 - y_1}{x_2 - x_1}[/tex]
For the first graph, the coordinates will be (-15, 0) and (0, 3)
Slope = 3 - 0/0-(-15)
= 3/15
Slope = 1/5
For the second graph, the coordinates will be (0, 5) and (10, 0)
Slope = 0 - 5/10- 0
= -5/10
Slope = -1/2
For the third graph, the coordinates will be (2.5, 0) and (0, -5)
Slope = -5-0/0 - 2.5
= -5/-2.5
Slope = 2
For the fourth graph, the coordinates will be (-2.8, 0) and (0, 4)
Slope = 4 - 0/0 - (-2.8)
= 4/2.8
Slope = 1.42
Hence,
For the first graph, slope = 1/5.
For the second graph, slope = -1/2.
For the third graph, slope = 2.
For the fourth graph, slope = 1.42.
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Solve equation with rational exponents. Check all proposed solutions.
8x^3/2-56=0
Answers
Answer: x=3√14
Step-by-step explanation:
If log102=0.3010, then log210 is equal to:
Answers
If log₁₀2=0.3010, the value of log₂10 will be 3.3×10⁻⁴.Logarithm identity is used to find the value of the log₂10.
What is a logarithm?It is another way to represent the power of numbers, and we say that 'b' is the logarithm of 'c' with base 'a' if and only if 'a' to the power 'b' equals 'c'.
[tex]\rm a^b = c\\log_ac =b[/tex]
It is given that, log₁₀2=0.3010
We have to find the log₂10
The following logarithm identity is used as,
logₐn=logₙa
log₂10 =1/ log₁₀2
log₂10 =1/ 0.3010
log₂10 =3.3×10⁻⁴
Thus, if log₁₀2=0.3010, the value of log₂10 will be 3.3×10⁻⁴. Logarithm identity is used to find the value of the log₂10.
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Of the 20 students in Mr . Evans class , 45% of them brought their lunches. Which of the following is the number of students who brought their lunches ?
Answers
Answer: 9 because 45% of 20 is 9
For the following, find the length of AB:
(Use \large \pi=3.14 when necessary and round your final answer to the hundredths.)
Arc AB =
Answers
A circle is a two-dimensional figure with a radius and circumference of
2πr.
The arc length of AB is 10.05.
What is a circle?
A circle is a two-dimensional figure with a radius and circumference of
2πr.
We have,
The radius of the circle = 12
The circumference of the given circle.
= 2πr
This means,
The whole circle is 360°.
= 360/360 x 2πr
= 2πr
Now,
We need to find 48°
So,
The arc length of AB.
= 48/360 x 2πr
= 48/360 x 2 x 3.14 x 12
= 48/30 x 2 x 3.14
= 10.048
Rounding to the nearest hundredths.
= 10.05
Thus,
The arc length of AB is 10.05.
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Answer: 10.05
Step-by-step explanation:
The arc length of AB.
= 48/360 x 2πr
= 48/360 x 2 x 3.14 x 12
= 48/30 x 2 x 3.14
= 10.048
Rounding to the nearest hundredths.
= 10.05
The arc length of AB is 10.05.
Need help to see if this is has a euler path?
Answers
If a graph G has an Euler path, then it must include precisely two odd vertices. Or, to put it another way, G cannot have an Euler path if the number of odd vertices is less than 2.
What is the Euler Theorem?A graph lacks Euler pathways if it contains more than two odd-degree vertices. 2. A graph contains at least one Euler path if it is connected and has exactly two vertices of odd degree or fewer. 3. If a network is connected and has 0 vertices of odd degree, it must contain at least one Euler circuit.If a graph G has an Euler path, then it must include precisely two odd vertices. Or, to put it another way, G cannot have an Euler path if the number of odd vertices is less than 2. In other words, v must have an even vertex.To learn more about Euler path refer to:
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A loan used for buying a home is called a mortgage. The Fortunato family is buying a $430,000 home. They are taking out a 30-year
mortgage at a rate of 8%.
a. Compute the monthly payment.
b. Find the total of all of the monthly payments for the 30 years.
c. What is the finance charge?
d. Which is greater, the interest or the original cost of the home?
Answers
Answer:
a. $3155.19
b. $1,135,868.40
c. $705,868.40
d. interest
Step-by-step explanation:
You want to find the monthly payment, total repaid, and finance charge on a 30-year mortgage for $430,000 at the rate of 8%.
a. PaymentYou can use a spreadsheet, financial calculator, app, or the amortization formula to find the payment amount.
A = P(r/12)/(1 -(1 +r/12)^(-12t))
where P is the principal amount of the loan, r is the annual interest rate, and t is the number of years.
A = 430,000(0.08/12)/(1 -(1 +0.08/12)^(-12·30)) ≈ 3155.19
The monthly payment is $3,155.19.
b. Total repaidThe total of the 12·30 = 360 payments is ...
360 · $3155.19 = $1,135,868.40
It will take about $1,135,868.40 to pay off the loan.
c. Finance chargeThe finance charge is the difference between the amount repaid and the original loan amount:
$1135868.40 -430000 = $705,868.40
The finance charge is $705,868.40.
d. ComparisonThe finance charge at $706k is considerably greater than the original cost of the home, $430k.
The finance charge is greater.
Need help, please!
Suppose you will perform a test to determine whether there is sufficient evidence to support a claim of a linear correlation between two variables. Find the critical values of r given the number of
pairs of data in and the significance level a
n=14,a=0.01
A: r=0.661
B: r= +- 0.532
C: r= 0.684
D: r= +- 0.661
Answers
Answer:
c or b
Step-by-step explanation:
A plane slices a double-napped cone parallel to the base of the cone. Which conic section is formed?
Answers
Answer:
Parabola
Step-by-step explanation:
A conic section is a curve obtained by the intersection of a plane with the surface of a (double-napped) cone, When the plane is parallel to the edge of one cone.
Thus, The intersection is a parabola.
Answer: degenerate hyperbola
Step-by-step explanation:
degenerate hyperbola because its the thickest of the plane so it can be formed.
A fair die with its faces numbered from 1 to 6 will be rolled. Which of the following is the best interpretation of the probability that the number landing face up will be less than three?
For many rolls of the die, the long- run relative frequency of a number less than three landing face app is 1/3.
Answers
For many of the rolls die, the long run relative frequency of a number less than 3 landing face up is 1/3.
What is relative frequency?
The proportion of outcomes where a specific event occurs to all trials, not in a hypothetical sample space but in a real experiment, is known as the empirical probability, relative frequency, or experimental probability of an event.
Given that, Only two integers (1 and 2) are smaller than 3, hence their relative frequency will be 2/6=1/3.
The best way to interpret the data is thus,
For many rolls of the die, the long- run relative frequency of a number less than three landing face up is1/3.
Hence option A is correct which is for many of the rolls die, the long run relative frequency of a number less than 3 landing face up is 1/3.
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To multiply a decimal number by 10,
O move the decimal point one place to the right.
move the decimal point two places to the right.
O move the decimal point one place to the left.
O move the decimal point two places to the left.
Answers
Answer:
[tex]\huge{\boxed{\text{A) move the decimal point one place to the right}}}}[/tex]
Step-by-step explanation:
Think about the following scenarios
4.00 * 10
529.00 * 10
4 * 10 = 40 (4.00 * 10 = 40.0)
529 * 10 = 5290 (5290.00 * 10 = 5290.0)
As you can see, the decimal point is moving one space to the right when multiplying by ten.
In the decimal system, moving the decimal point one place to the right multiplies by ten, while moving the decimal point one place to the left multiplies by 1/10.
Hope it helps :) and let me know if you want me to elaborate.
Explanation is edge
the midpoint of AB is at (0,4). If A=(3,0), find B.
Answers
If the midpoint of AB is at (0,4). and A = (3,0) then B is at point (-3, 8)
How to find point BThe formula to determine the center point of a straight line using the coordinates of its endpoints is known as the midpoint formula in coordinate geometry.
The formula is of the form
X= (x₂ - x₁)/2
Y = (y₂ - y₁)/2
solving for B (x₂, y₂)
0 = (x₂ + 3)/2
0 = x₂ + 3
x₂ = -3
4 = (y₂ + 0)/2
8 = y₂ + 0
y₂ = 8
point B = (-3, 8)
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Please help with this math qustion
Answers
Answer:155m
Step-by-step explanation:GK is congruent to HI
PLS HELP 10 POINTS!!
Perpendicular to the y-axis and has the point of (-4,5)
Answer choices
Y=5
Y=-4
X=5
X=-4
Answers
The line passes through Y=5. Correct option is A.
What is a perpendicular line?Two lines are perpendicular to each other if they are at right angle
to each other.
Given, line is perpendicular to Y-axis and passes through (-4,5).
Therefore, the given line is parallel to X-axis and passes Y-axis at y=5.
Hence, the given line passes through Y=5.
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Tami earned 71 out of 80 points on a test. What percentage did Tami earn on the test?
Answers
Answer:
88.75% is the percentage Tami earned.
Please help work due at 11:59( look at photo for answer choices)
Answers
The vertex labels of Δ QRT are : ∠2 label is Q, ∠8 label is T and the remaining vertex label is R. The vertex labels for ΔSTR are: ∠5 label is S, ∠9 label is R and the remaining label is T.
What is a triangle?The polygon having three sides and three vertices are known as triangle.
If we separate the two triangles as shown in the figure. We can find the vertex labels with the help of the angles marked in the figure.
For Δ QRT, the vertex labels are:
∠2 is Q, ∠1 is R and ∠8 is T
Similarly. for ΔSTR, the vertex labels are:
∠5 is S, ∠6 is T, and ∠9 is R
Hence, For Δ QRT, we can label as ∠2 is Q, ∠1 is R and ∠8 is T and for ΔSTR we can label as ∠5 is S, ∠6 is T, and ∠9 is R.
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Fill in the blanks to complete the equation that describes the diagram.
Answers
Answer:
-9
Step-by-step explanation:
-3+-6=-9
David is running a concession stand at a soccer game. He sells nachos and sodas. Nachos
cost $1.50 each and sodas cost $0.50 each. At the end of the game, David made a total of
$78,50 and sold a total of 87 nachos and sodas combined. Which system of equations
represents this situation?
Answers
Answer:
x + y = 87
1.5x + 0.5y = 78.50
Step-by-step explanation:
Let x be the number of nachos sold and y be the number of sodas sold
x nachos will cost 1.50x dollars
y sodas will cost 0.50y dollars
So total sales = 1.5x + 0.5y and we know he made $78.50
so one equation is
1.5x + 0.5y = 78.50
Total sold = x + y and we know that this number is 87
So the second equation is
x + y = 87
Which inequality does the graph represent?
A two-dimensional graph with an x-axis and a y-axis is given. A dotted line is passing through the co-ordinates (1,0), and (-1,2). The region below the dotted line is shaded in grey.
A. y < –x – 1
B. y < –x + 1
C. y < x – 1
D. y < x + 1
Answers
The inequality that the graph represent is y < -x + 1. The correct option is B. y < –x + 1
Determining the inequality that represents a graphFrom the question, we are to determine the inequality that represents the given graph.
From the given information,
The line is passing through the coordinates (1, 0) and (-1, 2).
Using the formula for the equation of a line,
Using the formula,
(y - y₁)/(x - x₁) = (y₂ - y₁)/(x₂ - x₁)
Then,
(y - 0)/(x - 1) = (2 - 0)/(-1 - 1)
y/(x-1) = 2/-2
y/(x -1) = -1
y = -1(x -1)
y = -x + 1
Since the line is dotted and the shaded region is below the line, the inequality becomes
y < -x + 1
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Find the quotient of 6x^3-+18x^2-18x+12 , x-2
Answers
In linear equation, 96 is the quotient.
What in mathematics is a linear equation?
A linear equation is a first-order (linear) term plus a constant in the algebraic form y=mx+b, where m is the slope and b is the y-intercept.
Sometimes, the aforementioned is referred to as a "linear equation of two variables," where x and y are the variables.
f(x) = 6x^3-+18x^2-18x+12
x - 2 = 0
x = 2
f( x) = 6 * 8 + 18 * 4 - 18 * 2 + 12
= 48 + 72 - 36 + 12
= 132 - 36
= 96
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2. Sandy Sellers works 30 hours per week
with an hourly rate of pay of $15.00 per
hour. She has deductions from each
paycheck of 12% for federal income tax,
2.84% for North Carolina income tax, 6.2%
for Social Security, and 1.45% for Medicare.
What is Sandy's net take home pay each
week?
Answers
Answer:
$348.79
Step-by-step explanation:
You want to know Sandy Sellers' net weekly pay if she earns $15 per hour for 30 hours' work and has deductions of ...
12% federal tax2.84% NC tax6.2% SS1.45% Medicare.Gross PaySellers' net pay will be her gross pay, less the taxes. Those taxes are all percentages of her gross pay.
gross pay = (hourly rate) × (hours worked)
gross pay = ($15.00/hour) × (30 hours) = $450
DeductionsThe deductions from her pay total ...
12% +2.84% +6.2% +1.45% = 22.49% . . . . of her gross pay
The dollar amount of the deductions is ...
0.2249 × $450 = $101.205 ≈ $101.21
Net PayThen Sellers' net pay is ...
net = gross - deductions
net = $450 -101.21 = $348.79
Sandy Sellers' take-home pay each week is $348.79.