The exponential function f (x) = 2500 (0. 4)*
models the amount of money in Zachary's
savings account over the last 10 year's.
The exponential function f (x) = 2500 (0. 4)ˣ models the amount of money in Zachary's savings account over the last 10 year's. Zachary's amount balance is decreasing.
Exponential Function:
An exponential function is a mathematical function represented by f(x) = exp(x) or eˣ (where the argument x is written as an exponent). Unless otherwise specified, the term generally refers to positive-valued functions of real variables, although it can be extended to complex numbers or generalized to other mathematical objects such as matrices or Lie algebras. The exponential function originated from the idea of exponentiation (repeated multiplication), but the modern definition (with several equivalent representations) allows it to be extended strictly to all real arguments, including irrational numbers.
According to the Question:
For an Exponential Function in the form y = a. bˣ
If b >1, the function is increasing.If b<1, the function is decreasing.Because b=0.4, then, Zachary's amount balance is decreasing.
Now,
Because the function is decreasing then it is exponential decay function and b is the decay factor.
And, In the exponential decay function
A(t) = a(1 -r)ᵇ , the decay factor is given by (1 - r) so:
b = 1 -r
⇒ 0.4 = 1 - 0.6
Where, r i the rate of decay.
Hence, the base term of the rate of decay is:
f (x) = 2500 (1 - 0.6)ˣ.
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define r as the region bounded by the functions f(x)=2x 1 and g(x)=x 1 between x=1 and x=2. if r is rotated around the x-axis, what is the volume of the resulting solid?
If the region R bounded by the functions f(x) = 2 and g(x) = x + 1 is rotated around the x axis , then the volume of the resulting solid is (7/3)π cubic units .
The region R is bounded by the functions f(x) = 2 and g(x) = x + 1 , and is between x = 1 and x = 2 .
Region-R between the lines x = 1 and x = 2 is rotated ,
So , The volume of the solid can be calculated as :
⇒ Volume = π × \(\int\limits^2_1\) (2)² - (x+1)²dx ;
⇒ Volume = π × \(\int\limits^2_1\) 4 - (x+1)²dx ;
⇒ Volume = [4x - (x+1)³/3]²₁ × π ,
⇒ Volume = π × [(4×2 - (2+1)³/3) - ((4×1) - (1+1)³/3)]
= [(8 - 27/3) - (4 - 8/3)]π
= [(8 - 9) - (4/3)]π
= [ -1 - 4/3]π = -7/3π ,
On taking the modulus of the volume ,
we get , that the Volume is 7/3π cubic units .
Therefore , the volume of the resulting solid is (7/3)π cubic units .
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The given question is incomplete , the complete question is
Define R as the region bounded by the functions f(x) = 2 and g(x) = x + 1 between x=1 and x=2. if R is rotated around the x-axis, what is the volume of the resulting solid?
PLEASE HELP DUE TODAY TOOOO!!!!
Answer:
f(4) is 6,520 greater than g(4)
Step-by-step explanation:
use the image to answer the question.
A landscaper is building a triangular garden behind a house. The lot is bounded on one side by the house
that is 30 ft. long and on another side by a fence that is 50 ft. long. If the fence makes a 25° angle with the
house, how long is the third side of the garden? Round your answer to the nearest foot.
a. 26 ft.
b. 46 ft.
c. 69 ft.
d. 78 ft.
Answer: 26ft
Step-by-step explanation:
How Many Ounces In A Teaspoon?
Describe the type of line the slope represents. (2,5) and (-1.5)
Answer:
horizontal line
Step-by-step explanation:
The y- coordinates of both points are 5
This indicates the line is horizontal and parallel to the x- axis with equation
y = 5
Laura has let out 60 m of her kite string, which makes an angle of 68º with the ground. What is the height of the kite?
Answer:
55.6mStep-by-step explanation:
The set up will form a right angled triangle. The distance that Laura let out her kite string will be the hypotenuse of the triangle, the angle that the kite makes with the ground will be the angle of elevation, facing the height of the kite.
The height of the kite H, will be the opposite side of the triangle since it is facing the angle directly. based on the trig identity SOH;
sintheta = opposite/hyp
sin68° = H/60
H = 60sin68°
H = 55.6m
The height of the kite is 55.6m
0.
A mountain climber ascends a mountain to its peak. The peak is 14,090 ft above sea level. The climber then descends 490 ft to meet a fellow climber. Find the climber’s elevation above sea level after meeting the other climber.
13,600 ft
14,580 ft
–13,600 ft
9,190 ft
Answer:
13,600 feet above sea level
Step-by-step explanation:
The climber was at 14,090 feet above sea level, and then they went 490 feet closer to sea level to meet the other climber. Since they’re moving closer to sea level and you want to know how far *above* sea level they are, subtract 490 from 14,090. 14,090-490=13,600 feet above sea level
Each set of three numbers represents the lengths, in units, of the sides of a triangle. Which set can not be used to make a triangle?
A: 7, 6, 14
B: 4,4,4
C: 6, 6, 2
D: 7, 8, 13
Answer:
A. 7,6,14
Step-by-step explanation:
Rules for side lengths of triangle.
1. Any side should be less then the sum of the other two angles.
2. The same side should be greater than the subtraction of the other side lengths(bigger side - smaller side)
A.
7 < 6+14 . Correct
7> 14-6 . Incorrect
This cannot be a solution (impossible)
B.
4<4+4 . Correct
4>4-4 . correct
This is a solution (equilateral triangle)
C.
6<6+2 . Correct
6>6-2 . Correct
This is a solution (isosceles triangle)
D.
7<8+13 . Correct
7>13-8 . Correct
This is a solution (scalene triangle)
If my answer is incorrect, pls correct me!
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-Chetan K
The mapping diagram represents a relation where x represents the independent variable and y represents the dependent variable. A mapping diagram with one circle labeled x-values containing values negative 8, negative 5, negative 1, 1, and 12 and another circle labeled y values containing values negative 4 and negative 2 and arrows from negative 8 to negative 4, negative 5 to negative 2, negative 1 to negative 2, 1 to negative 2, 12 to negative 4, and 12 to negative 2. Is the relation a function? Explain.
To determine whether the relation is a function, we need to check if each x-value is associated with only one y-value in the mapping diagram.
Identify the mapping diagram.A mapping diagram is a picture of two circles that shows the connection between input and output values. Illustration of a mapping diagram. The x-values (inputs) in the image are converted to the associated y-values by drawing an arrow from one x-value to its corresponding y-value (outputs).
From the given mapping diagram, we can see that the x-value -8 is associated with the y-value -4, the x-value -5 is associated with the y-value -2, the x-value -1 is associated with the y-value -2, the x-value 1 is associated with the y-value -2, the x-value 12 is associated with both the y-value -4 and -2.
Since the x-value 12 is associated with two different y-values, the given relation is not a function. To be a function, each x-value must be associated with only one y-value in the mapping diagram.
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Answer: I think its C lmk if I'm wrong
Explanation:
Equations with parentheses Solve for b 3-2(b-2)=2-7b3−2(b−2)=2−7b3, minus, 2, left parenthesis, b, minus, 2, right parenthesis, equals, 2, minus, 7, b b =b=b, equals Stuck? Watch a video or use a hint. Report
Answer:
Can you retype the question it is difficult to understand when copy and pasted
Step-by-step explanation:
Answer:
sorry
Step-by-step explanation:
In the number 437. 981, what is the place value of the 3?
The place value of 3 in this number be ten.
What is place values?Place value is the basis of our entire number system. This is the system in which the position of a digit in a number determines its value.
The number 42,316 is different from 61,432 because the digits are in different positions.
What is number system?A number system is defined as a system of writing to express numbers. It is the mathematical notation for representing numbers of a given set by using digits or other symbols in a consistent manner. It provides a unique representation of every number and represents the arithmetic and algebraic structure of the figures.
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1. y = |x|
Vertex
Domain
Range
Answer:
Vertex: (0.0)
Domain: (Negative infinity, Positive infinity)
Range: (0, infinity)
Identify the prime numbers in the following lists. a. 5, 7, 12, 11b. 14, 6, 3c. 31, 17, 9, 15d. 782, 61, 2
a. The prime numbers in this list are 5 and 7. b. There are no prime numbers in this list. c. The prime numbers in this list are 31 and 17. d. The prime numbers in this list are 61 and 2.
a. In the list 5, 7, 12, 11, the prime numbers are 5, 7, and 11. Prime numbers are numbers greater than 1 that have only two factors, 1 and themselves.
b. In the list 14, 6, 3, the prime number is 3. The other numbers have more than two factors, making them not prime.
c. In the list 31, 17, 9, 15, the prime numbers are 31 and 17. The numbers 9 and 15 have more than two factors, so they are not prime.
d. In the list 782, 61, 2, the prime numbers are 61 and 2. Number 2 is the smallest prime number, and 61 has only two factors, 1 and 61. The number 782 has more than two factors, so it is not prime.
To summarize, the prime numbers in each list are: a. 5, 7, 11; b. 3; c. 31, 17; d. 61, 2.
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the poisson distribution is applied to events for which the probability of occurrence over a given span of time, space, or distance is very small.truefalse
The Poisson distribution is applied to events where the probability of occurrence of a certain number of events in a fixed interval of time, space, or distance is small but not necessarily "very small". False.
The Poisson distribution is used to model events that occur randomly and independently over a continuous or discrete interval of time, space, or distance, such as the number of phone calls received at a call center in an hour, the number of cars passing through a toll booth in a given time period, or the number of emails received per day. The Poisson distribution is characterized by a discrete probability mass function that describes the probability of a certain number of events occurring in a given interval, and it is widely used in probability theory and statistics for modeling events with low to moderate occurrence rates.
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The poisson distribution is applied to events for which the probability of occurrence over a given span of time, space, or distance is very small.
Given statement is False.
Because, The Poisson distribution is applied to events for which the probability of occurrence over a given span of time, space, or distance is not necessarily very small, but rather where the events occur randomly and independently at a constant average rate.
The Poisson distribution models the number of events that occur in a fixed time interval or within a certain area or volume of space, assuming that the events occur independently of each other and at a constant average rate. It is used in many fields, such as biology, physics, economics, and engineering, to model the occurrence of rare or common events.
The Poisson distribution has several important properties, including:
Its mean is equal to λ, and its variance is also equal to λ.
It is a discrete distribution, meaning that it models only whole numbers of events.
It is often used to model rare or unusual events, but can also be used for events that occur frequently, as long as they occur independently at a constant average rate.
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Helpppppoo plzzzzzzz
Answer:
dont mind me
Step-by-step explanation:
Answer:
b. a. c. b. c. b. c. c. a.
Step-by-step explanation:
2 3 4 5 6 7 8 9 and 10
What are the measures of angles b and d? ∠b = 55°; ∠d = 55° ∠b = 55°; ∠d = 125° ∠b = 97°; ∠d = 97° ∠b = 83°; ∠d = 97°
In parallelogram ABCD, ∠b = 55°; ∠d = 55. So, the correct answer is (a).
We know that opposite angles of a parallelogram are congruent. In another words, opposite angles of parallelogram are equal. Therefore, we equate the angle B and angle D to each other and solve.
angle B = angle D
2n + 15 = 3n - 15
n = 30
The value of n is 30.
Now we can find the measures of angles B and D:
angle B = 2n + 15 = 2(30) + 15 = 75 degrees
angle D = 3n - 15 = 3(30) - 15 = 75 degrees
Therefore, the answer is (a) ∠b = 55°; ∠d = 55
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____The given question is incomplete, the complete question is given below:
In parallelogram ABCD measure of angle b is 2n+15 and angle d is 3n - 15. What are the measures of angles b and d? a)∠b = 55°; ∠d = 55° b) ∠b = 55°; ∠d = 125° c) ∠b = 97°; ∠d = 97° d)∠b = 83°; ∠d = 97°
Answer:
The Answer is A
Step-by-step explanation:
I just took the test! 2023Edg
Four times two less than a number is the same as thrice one more than the number. Find the number.
Answer:
See below:
Step-by-step explanation:
We can first setup an equation by doing the following:
\(4(2-x) = 3(x+1)\\8-4x=3x+3\\8-7x=3\\-7x=3-8\\-7x=-5\\x=-5/-7 (5/7)\)
Whole proccess above!
If you would like an explanation, please let me know so.
Its basically algebra and it's mainly on how you interpret it!
Have a nice day!
Points A, B, C, and D lie on circle M. Line segment BD is a diameter.
Answer:
I guess you should put the points B and D opposite to eachother with 180 degree between them so that it the line segment BD pass through the center to make 2 radii which is a diameter
answer for brainlist
How many total miles did she walk over the weekend
Answer:
3.95
Step-by-step explanation:
3 7/10 + 0.25= 3.95
723,341.94 in expanded form
Answer: below
Step-by-step explanation:
700,000+20,000+3000+300+40+1+0.90+0.04
Not really sure but i hope this is correct
Answer: 723,341.94 = 700,000+ 20,000+ 3,000+300 + 40 +1 +0.9 +0.04
Please answer correctly !!!!!!! Will mark brianliest answer !!!!!!!!!!!!!
Answer:
I belive that the correct answer is 32. hope this helps mark me as brianliest????
Step-by-step explanation:
Answer:
missing constant is 36
Step-by-step explanation:
x²-12x+36
because 12x= 2*√x²*√36
so 36 is missing constant
and there is easier way (12/2)² = 36
Fatma has $182,000.00 that she will use for her monthly expenses of $1,350.00. What rate of return does her account need to earn in order to stretch this money out for 17 years? She will make the first withdrawal on September 8,2022.
Fatma's account needs to earn a rate of return of approximately 0.2957% per month to stretch her money out for 17 years.
To determine the required rate of return for Fatma's account, we can use the future value formula:
FV = PV * (1 + r)^n
Where:
FV = Future value (amount needed for 17 years of expenses)
PV = Present value (initial amount Fatma has)
r = Rate of return
n = Number of compounding periods (monthly withdrawals over 17 years)
Given:
PV = $182,000.00
Monthly expenses = $1,350.00
Number of years = 17
Number of compounding periods = 17 years * 12 months = 204 months
We can rearrange the formula to solve for the required rate of return (r):
r = (FV / PV)^(1/n) - 1
Substituting the given values:
FV = $1,350.00 * 204 = $275,400.00
r = ($275,400.00 / $182,000.00)^(1/204) - 1
Calculating this expression:
r ≈ 0.002957 (approximately 0.2957%)
Therefore, Fatma's account needs to earn a rate of return of approximately 0.2957% per month to stretch her money out for 17 years.
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A cylinder has a diameter of 10 km and a height of 3 km. What is the volume?
A random survey asked two samples of 100 high school students how much time they spend on homework each night. A 4-column table with 2 rows.
The time categories are divided into "<1 hour," "1-2 hours," "2-3 hours," and ">3 hours."
What does the frequency distribution in the table reveal about the homework habits of the two samples of high school students?
The frequency distribution in the table provides insights into the distribution of homework habits among the two samples of high school students. By examining the frequency counts in each time category, we can determine the proportion of students spending different amounts of time on homework each night. This information helps identify patterns and differences in homework habits between the two samples, allowing for a comparison of their study behaviors.
Here is an example of a 4-column table with 2 rows representing the results of a random survey asking two samples of 100 high school students about the amount of time they spend on homework each night:
Sample 1:
Sample 1 Number of Students
Time Frequency
<1 hour 20
1-2 hours 40
2-3 hours 30
>3 hours 10
Sample 2:
Sample 2 Number of Students
Time Frequency
<1 hour 30
1-2 hours 35
2-3 hours 20
>3 hours 15
In this table, each sample represents a different group of 100 high school students, and the frequency of students spending a particular amount of time on homework each night is recorded. The time categories are divided into "<1 hour," "1-2 hours," "2-3 hours," and ">3 hours." The table provides an overview of the distribution of homework time among the two samples of high school students.
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What is the radius of a
cylinder with a
diameter of 18 cm?
The radius of the cylinder with a diameter of 18 cm is 9 cm.
RadiusThe distance between the center of a circular body and the circumference of the circular body is known as Radius.
How to determine the radius of the circle?The diameter of the base of the cylinder is 18 cm.
The radius of the circular base is equal to half of the diameter of the circular base.
So,
\(R=\dfrac{D}{2}\\=9\text{ cm}\)
Thus, the radius of the base of the cylinder with a diameter of 18 cm is 9 cm.
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The temperature dropped 8 degrees between 6:00 P.M. and midnight. The temperature at midnight was 26 F. Write and solve an equation to find the temperature at 6:00 P.M.
Answer:
x = 34
Step-by-step explanation:
-8 = dropped 8 degrees
26 = 26 degrees at midnight
x = temperature at 6
x - 8 = 26
(add 8 to both sides) x = 34
Write the circumference of a circle with a diameter of 49 inches in terms of pi
Answer:
153.94
Step-by-step explanation:
c=2r*r
The radius is half of the diameter.
To find the radius you will divide 49 inches by 2.
You should get a total of 24.5
Now that you have your radius you are going to use the circumference formula to solve.
C= 2r*r
C=2(24.5)*(24.5)
type that into the calculator (without the parenthesis) and boom your done!
You answer should be 153.938
then you round to get a total of 153.94
I hope i was able to help!
Answer: c = 3771.481981 (decimal place) or 1200.5\(\pi\) (exact form)
Step-by-step explanation:
c = 2\(\pi\)r
c = 2 x \(\pi\) x \(24.5^{2}\)
radius = diameter divided by 2
= 49 divided by 2
= 24.5
c = 3771.481981 (decimal place) or 1200.5\(\pi\) (exact form)
How much money will it cost you to drive a diesel tractor trailer truck 175.0 miles if it gets 8.500 miles per gallon and diesel fuel costs $3.599/gallon
To calculate the cost of driving a diesel tractor trailer truck for 175.0 miles, we need to determine the number of gallons of fuel required and then multiply it by the cost per gallon.
Calculate the number of gallons of fuel needed. Given that the truck gets 8.500 miles per gallon, we divide the total distance (175.0 miles) by the fuel efficiency: 175.0 miles / 8.500 miles per gallon
= 20.59 gallons (approximately)
Calculate the cost of the fuel.Since diesel fuel costs $3.599 per gallon, we multiply the number of gallons needed by the cost per gallon: 20.59 gallons x $3.599/gallon = $73.89 (approximately) Therefore, it will cost you approximately $73.89 to drive the diesel tractor trailer truck for 175.0 miles, assuming it gets 8.500 miles per gallon and diesel fuel costs $3.599 per gallon.
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