The proof that the angles are similar have been done below
How to do the proofTo prove that two triangles are similar, we need to show that they have congruent angles.
We can use the Angle-Angle (AA) Similarity theorem, which states that if two angles of one triangle are equal to two angles of another triangle, then the two triangles are similar.
In triangle ABC, angles A and B are equal to angles A and D in triangle ADE. So, according to the AA Similarity Theorem, triangles ABC and ADE are similar.
Thus, we can write:
ABC ~ ADE
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Brainliest + Points! Please explain
Courtney plans to buy a new car and determines she can budget $400 monthly for six years. Her bank is offering a 7. 5% annual interest rate. What is the maximum car loan she can afford to stay within her budget?
A.
$19,873. 45
B.
$21,000. 50
C.
$23,134. 61
D.
$27,425. 75
Correct answer to the given question about Courtney's affordable car loan within her budget is option D. $27,425. 75.
To determine the maximum car loan that Courtney can afford, you need to calculate the total amount she will pay over 6 years and make sure it's less than the total amount she can afford to pay each month ($400) multiplied by the number of months (6 years x 12 months per year = 72 months).
First, calculate the total amount of interest she will pay over 6 years at 7.5% annual interest: $400 x 7.5% = $30
Next, calculate the monthly payment by dividing the annual interest amount by 12 months:$30 / 12 = $2.50
So, the monthly payment (not including the car loan amount) is $400 + $2.50 = $402.50.
Finally, you can calculate the maximum car loan amount by subtracting the monthly payment from the total amount she can afford to pay each month, and then dividing by the number of months:
$400 x 72 months = $28,800
$28,800 / $402.50 = 71.37
So, Courtney can afford a maximum car loan of $71,370.
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Pls show your work thank you will mark the Brainliest
Simplifying the expression (6x⁻²)²(0.5x)⁴ by using mathematical operators gave us 2.25
What is Simplification of ExpressionSimplification of expression is the process of rearranging an expression so that it becomes simpler to understand and evaluate. This is done by combining terms, factoring, canceling out like terms, and other methods.
In the given expression;
(6x⁻²)²(0.5x)⁴ can be simplified using law of exponents which will become;
(6x⁻²)²(0.5x)⁴ = (36/x⁴) (0.0625x⁴)
This can be further simplified as;
(36/x⁴) (0.0625x⁴) = 2.25
The simplification of the original expression gave us 2.25
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Suppose √x + √y = 10 and y(9) = 49. Find y'(9) by implicit differentiation.
Answer:
y'(9) = -7/3.
Step-by-step explanation:
We start by differentiating the given equation with respect to x:
d/dx(√x + √y) = d/dx(10)
1/(2√x) + (1/2)y'(x)/√y = 0
Simplifying, we get:
y'(x) = -√y/√x
To find y'(9), we plug in x = 9 and y = y(9) = 49:
y'(9) = -√49/√9 = -7/3
Therefore, y'(9) = -7/3.
Store #1 sold packages of eggs 1 dozen (12) for $1.44 a package. Store #2 sold packages of eggs 3 dozen (36) for $4.68. Which has the better price? Show the comparing prices.
Store #1 has the better price amount , as the price per dozen eggs is $1.44, whereas Store #2 is $1.29 per dozen eggs.
Store #1 has the better price, as the price per dozen eggs is $1.44, whereas Store #2 is $1.29 per dozen eggs. To compare the prices, we need to calculate the cost per dozen eggs for each store. To do this, we divide the cost by the number of eggs. For Store #1, the cost per dozen eggs is $1.44 divided by 12, which is $0.12. For Store #2, the cost per dozen eggs is $4.68 divided by 36, which is $0.13. Therefore, Store #1 has the better price, as it is cheaper than Store #2. By comparing prices, we can find the best deal for our money. It is important to compare prices to get the best value for our money, as it can help us save money in the long run. Additionally, by comparing prices, we can make sure we are getting the highest quality product at the best price.
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please help! precalculus (concavity and graphing)
A store pays $842.00foracrystalsculptureandmarksthepriceupby29%.Whatistheamountofthemark-up?
The store pays $842.00 for the crystal sculpture and marks the price up by 29%, then the amount of the markup is $243.98.
What is the arithmetic operation?
Arithmetic operations is a branch of mathematics, that involves the study of numbers, the operation of numbers that are useful in all the other branches of mathematics. It basically comprises operations such as Addition, Subtraction, Multiplication, and Division.
we have given,
The store pays $842.00 for the crystal sculpture and marks the price up by 29%,
so, the amount of the mark-up can be calculated as follows:
$842.00 * 29% = $842.00 * 0.29 = $243.98
Therefore, the amount of the markup is $243.98.
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Correct question:
A store pays $842.00 for a crystal sculpture and mark the price by 29%. What is the amount of the mark-up?
The store pays $842.00 for the crystal sculpture and marks the price up by 29%, then the amount of the markup is $243.98.
What mathematical operation is that?
A subfield of mathematics known as arithmetic operations deals with the study and manipulation of numbers, which are essential to all other subfields of mathematics. Basic operations like addition, subtraction, multiplication, and division are included in it.
The four mathematical operations are functions that take input values, or numbers, as inputs and turn one number into another. They are: multiplication, division, addition, and subtraction.
According to contemporary mathematicians, the Riemann Hypothesis is possibly the most significant open problem in all of mathematics. One million dollars will be awarded to the person who can solve it, which is one of the seven Millennium Prize Problems.
we have given,
The store pays $842.00 for the crystal sculpture and marks the price up by 29%,
so, the amount of the mark-up can be calculated as follows:
[tex]842.00 \times 29% \\= $ 842.00 \times 0.29 \\= $243.98[/tex]
Therefore, the amount of the markup is $243.98.
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Correct question:
A store pays $842.00 for a crystal sculpture and mark the price by 29%. What is the amount of the mark-up?
Find the value of P and please do your best and double check your answers, thanks!!!
The value of P in this triangle is equal to 14.
What is the basic proportionality theorem?In Mathematics, the basic proportionality theorem states that when any of the two (2) sides of a triangle is intersected by a straight line which is parallel to the third (3rd) side of the triangle, then, the two (2) sides that are intersected would be divided proportionally and in the same ratio.
By applying the basic proportionality theorem to the given triangle, we have the following:
24/p = 12/(21 - p)
By cross-multiplying, we have the following:
12p = 24(21 - p)
12p = 504 - 24p
36p = 504
p = 504/36
p = 14.
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If the area of a rectangle is 1445√5 square inches, what are possible dimensions of the rectangle? Explain your reasoning.
The possible dimensions of the rectangle will be 12 and 12√5.
What is a rectangle?A rectangle is a quadrilateral having four sides and the sum of the angles is 180 in the rectangle the opposite two sides are equal and parallel and the two sides are at 90-degree angles.
The space occupied by any two-dimensional figure in a plane is called the area. The space occupied by the rectangle in a two-dimensional plane is called the area of the rectangle.
Given that the area of the rectangle is 144√5. The dimensions of the rectangle can be calculated by factorizing the given area as below:-
Area = 144√5
L x W = 12 x 12√5
So the dimensions will be L = 12 and W = 12√5.
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At Rental Company A, a rental car costs $55.50 and every
kilometer costs $14.40. At Rental Company B, a rental car
costs $91.50 and every kilometer costs $10.80.
At how many kilometers will they cost the same, and how
much will it cost?
kilometers
dollars
Answer:
1/ At 10km, they will cost the same.
2/ It costs $199.50
Step-by-step explanation:
We know
Rental Company A, a rental car costs $55.50, and every kilometer costs $14.40.
Let Y represent the total cost, and x is the number of kilometers. We have the equation
y = 14.40x + 55.50
Rental Company B, a rental car costs $91.50, and every kilometer costs $10.80.
y = 10.80x + 91.50
How many kilometers will they cost the same?
14.40x + 55.50 = 10.80x + 91.50
3.6x = 36
x = 10 km
How much will it cost?
y = 14.40(10) + 55.50
y = 144 + 55.50
y = $199.50
The large square is divided into four rectangles and a small square. The center of the
large square and the center of the small square is the same point. What is the area of
one rectangle if the large square has side length 7, and the small square has side length
3?
The area of one rectangle is 21 square units.
What is the area of one rectangleLet's label the vertices of the large square as A, B, C, and D, with A in the top left corner and going clockwise. Let E be the center of the large square and also the center of the small square. Let F, G, H, and I be the midpoints of the sides AB, BC, CD, and DA, respectively, so that each of the four rectangles has two adjacent sides that are also sides of the large square.
Then, the side length of each rectangle is the same as the side length of the small square, which is 3. The height of each rectangle is the distance between two adjacent sides of the large square, which is 7. Therefore, the area of each rectangle is:
Area = base × height = 3 × 7 = 21 squared unit
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A cylinder with a height of 11.2 cm and radius of 4.9 cm is shown. Use the image to answer the question. Find the lateral surface area of the cylinder. Use 3.14 for π and round to the nearest whole number.
The lateral surface area of the cylinder would be 157.78π.
What is lateral surface area of a cylinder? How will you derive the volume of a cylinder?The lateral surface area of a cylinder with radius 'r' and height 'h' is given by →LSA = 2πr(h + r) .... Eq { 1 }
Consider a very thin cross - section of a cylinder whose thickness is [dh] {differential or very small value}. The volume of this cross section would be -dV = πr² dh
For complete cylinder -
∫dV = πr² ∫dh
V - 0 = πr² [h - 0]
V = πr²h .... Eq { 2 }
Given is a cylinder with a height of 11.2 cm and radius of 4.9 cm.
We can write the lateral surface area of a cylinder as -
LSA = 2πr(h + r)
LSA = 2π x 4.9 x (11.2 + 4.9)
LSA = 2π x 78.89
LSA = 157.78π
Therefore, the lateral surface area of the cylinder would be 157.78π.
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PLEASE HELP it is due tonight
Factor 40r–56. Write your answer as a product with a whole number greater than 1.
Answer:
Below
Step-by-step explanation:
8 is the greatest common factor of 40 and 56....so factor it out to get
8 ( 5r-7)
The diagram shows a track composed with a semicircle on each end. The area of the rectangle is 14,400 square meters. What is the perimeter of the th rack? Use 3.14 for pi
Answer:
602 .6
Step-by-step explanation:
∴14,400=160b
⇒b=90m
902m=45m
2πr=2π×45≈282.6m
320m+282.6m=602.6m
write a recursive formula for the following arithmetic sequence. 6,-5,-16,-27, …
Find the volume of the sphere
The volume of the sphere is 1437.3 cm³.
Definition of SphereA sphere is a geometric shape with a perfectly round shape composed of an infinity of circles that have the same radius and center of the circle. Literally "ball" comes from the Greek word "globe" or "ball". Then in English the ball is called "sphere".
Properties of the Sphere
It is a perfect symmetrical shape. All points on the surface of the ball to the center of the ball are the same distance. The distance from the surface point to the center of the ball is called the radius (r). Has no corner points. Only has 1 side. Has 1 central point.To find the volume of the sphere we use formula:
V=4/3. πr³
To calculate the sphere volume above with r=7cm
V=4/3. πr³
V=4/3.(22/7). 7³
V=1437.3 cm³
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4. Last year, Bill Novato drove 38,986 miles and had these
expenses: gas, $7,787. 25; maintenance and miscellaneous,
$318. 80; parking and tolls, $325. 00; tires, $300. 00; wash and
wax, $75. 00; insurance, $614. 80; license, $74. 90; loan interest
$412. 20 and depreciation, $5,780. 0. What was his cost per
mile last year?
The cost per mile that Bill Novato had last year was $0.40.
As per the data given:
Last year, Bill Novato drove 38,986 miles.
Also he had the expenses as follows:
Gas: $7787. 25
Maintenance and miscellaneous: $318.80
Parking and tolls: $325.00
Tires: $300.00
Wash and wax: $75.00
insurance: $614.80
License, $74.90
Loan interest: $412.20
Depreciation: $5780.0
To find the cost per mile we just need to divide all the expenses Bill had on the car by the amount of miles he drove.
The total amount of expenses can be found by adding all the expenses together.
= 7787.25 + 318.8 + 325 + 300 + 75 + 614.8 + 74.9 + 412.2 + 5780
= 15687.95
The total expense of the car was $15687.95.
Dividing this value by the total amount of miles driven, we have:
[tex]$\frac{15687.95}{38986}=0.40239957933[/tex]
The cost was approximately $0.40 per mile.
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bacteria colonies increase by 73percent every 2 days if you start with 150 bacteria micrograms how large would the colony be after 8 days
If you start with 150 bacteria micrograms, the colony would have 1,343.61756 bacteria after 8 days.
We solve this problem using our understanding of the rules of calculating percentages. We have been given the condition that bacteria colonies increase by 73% after every 2 days.
So, starting with 150 bacteria,
after 2 days we'll be having
150+ (73% of 150) bacteria
i.e. 150 + (0.73×150)
=150 + 109.5
=259.5 bacteria
and after 4 days the no. will be,
259.5 + (0.73×259.5)
=259.5 + (189.435)
=448.935 bacteria
similarly after 6 days,
448.935 + (0.73×448.935)
=448.935 + (327.722)
=776.65755 bacteria
and finally after 8 days,
=776.65755 + (0.73×776.65755)
=776.65755 + 566.960012
=1,343.61756 bacteria
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If I get 20 coins per second, how many will I have in 30 days?
Answer:ur mom
Step-by-step explanation:
30/60=x
x*20
Step-by-step explanation:
What a question.. expect a huge number as the answer
What we need to do is convert days into seconds, and then multiply that number by 20.
30 days
24 hours in 1 day
60 minutes in 1 hour
60 seconds in 1 minute.
So what we do is multiple these 4 numbers
[tex]60 \times 60 \times 24 \times 30 = 2592000[/tex]
There are 2,592,000 seconds in 30 days.
Now we take that number and multiply it by 20 coins
[tex]2592000 \times 20 = 51840000 \: coins[/tex]
a concert promoter is forecasting this year's attendance for one of his concerts based on the following historical data: year attendance four years ago 10,000 three years ago 12,000 two years ago 18,000 last year 20,000 what is this year's forecast using exponential smoothing with alpha
16,000 people are expected to attend this year's events, according to the exponential smoothing method.
Below is a forecast utilizing the exponential smoothing method.
Forecasting with exponential smoothing is done using the formula below.
Ft+1 = Ft + α (At – Ft )
Find the forecasting for this year using the formula Ft+1 = Forecasting Value of the Upcoming Year =?
Ft = Forecasting Value of the Previous Year = 15,000= Predicted Attendance for the Previous Year
At = Actual Value of the Previous Year = 20,000
Smoothing Constant (which lies between 0 and 1) =0.2 =α
F(last year) + α (A(last year) – F(last year) )=F (This year)
= 15000 + 0.2 (20000 – 15000)
= 15000 + 0.2 (5000)
= 15000 + 1000
= 16000
F (This year) = The anticipated attendance for this year is 16000.
According to the exponential smoothing method, 16,000 people are expected to attend this year's events.
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Which expression to represents the phrase: "6 times a number plus 3."
Question 2 options:
6 x 3
6 x 3 + n
6n + 3
6n = 3
BIG IDEAS MATH QUESTION
Which of the numbers listed below are solutions to the equation? Check all
that apply.
|x| = 100
A. -100
B. 10
C. 100
D. -10
E. 25
F. None of these
Answer: A and C
Step-by-step explanation:
Abs. val is distance from 0, and 100 and -100 are both the same distance from 0, so x=100 and x=-100.
The expression -210+ 12m represents a submarine that began at a depth of 210 feet below sea level and ascended at a rate of 12 feet per minute. What was the depth of the submarine after 9 minutes?
The depth of the submarine after 9 minutes will be -102 feet.
What is an expression?Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.
Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.
Given that the expression -210+ 12m represents a submarine that began at a depth of 210 feet below sea level and ascended at a rate of 12 feet per minute.
The depth of the submarine after 9 minutes will be calculated as:-
D = -210+ 12m
D = -210 + ( 12 x 9 )
D = -210 + 108
D = -102 feet
Therefore, the submarine's depth will be -102 feet after 9 minutes.
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for a game of chance, there is a 20% chance of winning $60, a 20% chance of winning $100, a 30% chance of breaking even. what is the overall expected outcome for this game?
The overall expected outcome for this game is $32.
Therefore the answer is $32.
The expected outcome for a game of chance can be calculated by multiplying the payoffs for each outcome by the probability of each outcome, and then summing these products.
For this game, the expected outcome would be calculated as follows:
Expected outcome
= (0.20 * $60) + (0.20 * $100) + (0.30 * $0)
= $12 + $20 + $0
= $32
So the overall expected outcome for this game is $32. This means that, on average, if you were to play this game many times, you could expect to win $32 each time. It's worth noting that expected outcome is just an average and does not guarantee a win, as the outcomes of each game are uncertain.
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Which of the following is a pair of equivalent radical expressions?
A. 45−−√
and 315−−√
B. 75−−√
and 35–√
C. 54−−√
and 96–√
D. 180−−−√
and 320−−√
The pair of equivalent radical expression is option D. √180 and 3√20.
What are Radicals?Radicals are defined as the nth root of a number using the symbol [tex]\sqrt[n]{x}[/tex].
This is the opposite form of the exponential functions.
[tex]\sqrt[n]{x}[/tex] can be written in the exponential form as [tex]x^{1/n[/tex].
A.√45 can be written as the square root of (15 × 3).
√45 = √(15 × 3) ≠ 3√15
B. √75 cannot be written as 3√5, since, if we have to take 3 outside, inside he root there must be 3² = 9. But 75 is not a multiple of 9.
C. √54 = √(9 × 6) = 3√6 ≠ 9√6
D. √180 = √(9 × 20) = √9 × √20 = 3√20
Hence the correct option is D.
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The clear question is given below.
Which of the following is a pair of equivalent radical expressions?
A. √45 and 3√15
B. √ 75 and 3√5
C. √54 and 9√6
D. √180 and 3√20
the 1000 students of a local high school are categorized by their attendance and gpa in the table. if a student has skipped many classes, what is the probability that their gpa is less than 2.0?
The probability that a student who has skipped many classes has a GPA less than 2.0 is 0.5.
To calculate this probability, we can use the data from the table given. If a student has skipped many classes, they are in the "Many Skips" category. From the table, we can see that there are 200 students in the "Many Skips" category and 100 of them have a GPA of less than 2.0. Therefore, the probability of a student with many skips having a GPA less than 2.0 is given by:
P(GPA < 2.0 | Many Skips) = 100/200 = 0.5
This means that if we randomly select a student who has skipped many classes, there is a 50% chance that their GPA will be less than 2.0. This calculation provides insight into the relationship between attendance and GPA, and it suggests that skipping many classes is associated with a lower GPA.
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(1)The figure shows two similar triangles: the smaller triangle has a base length of 8 feet and a height of 5 feet (the height of the boy), whereas the second triangle has a base length of 24 feet and a height equal to that of the tree. How tall is the tree? (A) 15 feet (B) 27 feet (C) 38.4 feet (D) 45 feet 24 ft 5 ft 8 ft
Answer:
A
Step-by-step explanation:
since the 2 triangles are similar then the ratios of corresponding sides are in proportion.
let h represent the height of the tree , then
[tex]\frac{h}{5}[/tex] = [tex]\frac{24}{8}[/tex] = 3 ( multiply both sides by 5 )
h = 3 × 5 = 15
height of tree is 15 feet
Solve for x
x + 3 > -1 -x
Answer:
x > -2
Step-by-step explanation:
x + 3 > -1 - x
x + x + 3 > -1 - x + x
2x + 3 > -1
2x + 3 - 3 > -1 - 3
2x > -4
2x/2 > -4/2
x > -2
Graph the system of inequalities presented here on your own paper, then use your graph to answer the following questions:
y > 2x + 3
y is less than negative 3 over 2 times x minus 4
Part A: Describe the graph of the system, including shading and the types of lines graphed. Provide a description of the solution area. (6 points)
Part B: Is the point (−4, 6) included in the solution area for the system? Justify your answer mathematically. (4 points)
The graph is attached, the type of line is dashed straight lines
Part B the point (-4, 6) is not a solution
How to describe the graphinformation gotten from the question include
y > 2x + 3
y is less than negative 3 over 2 times x minus 4
the statement is written as
y < -3/2 x - 4
Part B
The point (-4, 6) is not included in the solution
plugging in x = -4 into the equation
y < -3/2 (-4) - 4
y < 6 - 4
y < 2 not a solution
y > 2 (-2) + 3
y > -4 + 3
y > -4
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