Answer:
Lily has 7 Quarters and 10 Dimes
Step-by-step explanation:
Let's use pennies instead of $.
Let D and Q stand for the numbers of Dimes and Quarters, respectively.
We are told that there are 17 coins total:
D + Q = 17
We also learn that they amount to 275 (pennies). We can write that as:
10D + 25Q = 275 [Each D is worth 10 pennies, etc.]
We have two equations and two unknowns. We can rearrange one equation to find the value of either of the unknowns, and then use that it the second equation.
I'll rearrange the first:
D + Q = 17
D = 17 - Q
Now use this value of D in the second equation:
10D + 25Q = 275
10(17-Q) + 25Q = 275
170 - 10Q + 25 Q = 275
15Q = 105
Q = 7 : 7 Quarters.
Since D + Q = 17:
D + 7 = 17
D = 10 Dimes
==========================================
Let's check these results:
Q = 7 Quarters
D = 10 Dimes
1. Is this 17 coins in total? (7+10 = 17) YES
2. Does this add to $2.75? (10*10) + (7*25) = 275 cents?
(100 + 176) = 275 (cents) YES
============================
Lily has 7 Quarters and 10 Dimes
use the root test to determine the convergence or divergence of the given series or state that the root test is inconclusive. is: [infinity]
Σ 1/n8n
n=1
l=lim n√|an|= ____ (enter 'inf' for [infinity].) n->[infinity] [infinity]
Σ 1/n8n is:
n=1
a. convergent b. divergent c. the root test is inconclusive
The root test is inconclusive for the series Σ 1/n8n.
To determine the convergence or divergence of the series Σ 1/n8n using the root test, we need to calculate the limit as n approaches infinity of the nth root of the absolute value of the nth term. In this case, the nth term is 1/n8n.
Calculating the limit, we have lim n→∞ (n√|1/n8n|).
Simplifying the expression inside the absolute value, we get 1/n^8n = 1/n^(8n) = 1/n^(8n) = 1/(nⁿ⁸) = 1/(n⁸ⁿ).
Taking the nth root of the absolute value, we have
n√|1/n⁸ⁿ| = n√(1/(n⁸ⁿ)).
As n approaches infinity, the expression (1/(n^8n)) approaches zero because the denominator, n⁸ⁿ, grows much faster than the numerator, 1. Therefore, the nth root of the absolute value approaches 1.
Since the limit is equal to 1, the root test is inconclusive. The root test does not provide sufficient information to determine whether the series
Σ 1/n8n is convergent or divergent.
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f/5=8 what does f equals
Answer:
F=40
Step-by-step explanation:
you have to get rid of the five. What's the oposite of division? Mutiplaction, so you mutiply 5 times 8. The five cancels, and you are left with 40.
messag
The length of each of the two congruent sides of an isosceles triangle is 3x - 1. The length of the third side is 2x + 1. The perimeter is 55 feet. Which equation does NOT represent the perimeter?
8x - 1 = 55
6x - 2 + 2x + 1 = 55
2 (3x - 1 + 2x + 1) = 55
2 (3x - 1) + (2x + 1) = 55
PLEASE HELP HURRY PLEASE‼️‼️‼️‼️‼️‼️‼️‼️‼️
Question 25 of 25
Which of the following values are in the range of the function graphed below?
Check all that apply.
10
10
10
-10
Answer:
I think thé answer is C 0 contadict me if it is dring please
Option D is correct, 6 is the value of the range in the given graph.
What is a function?A relation is a function if it has only One y-value for each x-value.
We have to find the values are in the range of the function graphed below
The domain of the given graph is -2≤x≤4
What can go into a function is called the Domain.
What may possibly come out of a function is called the Codomain.
What actually comes out of a function is called the Range.
The range of the given graph is y values.
The y value is 6
Hence, 6 is the value of the range in the given graph.
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let a be the area of a circle with radius r that is increasing in size with respect to time. if the rate of change of the area is 3 cm/s, find the rate of change of the radius when the radius is 6 cm.
1/4π is area of a circle when the radius is 6 cm.
What is the circumference of a circle?
The radius squared times pi equals the area of a circle (A = r2). Find out how to apply this formula to determine a circle's area given its diameter.As a result, the circumference of a circle is pi times the diameter or 2 pi times the radius, which is how pi is typically defined as the ratio of a circle's circumference to its diameter. This provides a geometric reason that a circle's surface area is indeed equal to "pi r squared."A = πr²
differentiate both sides with respect to 't'
dA/dt = πr² dr/dt
dA/dt = 2πr dr/dt
dA/dt = 3 , r = 6
3 = 2π * 6dr/dt
dr/dt = 1/4π
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Find the maximum rate of change of f(x,y,z)=x+y/z at the point (-4, -2, 4) and the direction in which it occurs? Max rate of change? Direction(unit vector) in which it occurs?
A. The maximum rate of change of f at (-4, -2, 4) is approximately 1.031.
B. The direction in which the maximum rate of change of f occurs at (-4, -2, 4) is approximately the unit vector u = <0.970, 0.242, 0.048>.
To find the maximum rate of change of the function f(x,y,z) = x + y/z at the point (-4, -2, 4), we need to find the gradient vector of f and then evaluate it at the given point. The gradient vector of f is given by:
∇f(x,y,z) = <∂f/∂x, ∂f/∂y, ∂f/∂z>
= <1, 1/z, -y/z²>
So, at the point (-4, -2, 4), we have:
∇f(-4,-2,4) = <1, 1/4, -(-2)/16>
= <1, 1/4, 1/8>
The magnitude of the gradient vector gives us the maximum rate of change of f at the given point:
|∇f(-4,-2,4)| = √(1² + (1/4)² + (1/8)²) ≈ 1.031
Therefore, the maximum rate of change of f at (-4, -2, 4) is approximately 1.031. To find the direction in which this maximum rate of change occurs, we need to normalize the gradient vector:
u = ∇f(-4,-2,4)/|∇f(-4,-2,4)|
= <1, 1/4, 1/8>/√(1² + (1/4)² + (1/8)²)
≈ <0.970, 0.242, 0.048>
So, the direction in which the maximum rate of change of f occurs at (-4, -2, 4) is approximately the unit vector u = <0.970, 0.242, 0.048>.
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Can anybody help please ??
Answer:
d because it makes the most sense
Step-by-step explanation:
Answer:
D- 50
Step-by-step explanation:
.6 (60%) times 50 = 30
find the 24th term of the arithmetic sequence whose common difference is d=5 and whose first term is a1=2
Answer:
94
Step-by-step explanation:
a1+ 23d =2+23*4= 94
94 is the 24 th term
The table shows the latitude and longitude of three cities.
Earth is approximately a sphere with a radius of 3960 miles. The equator and all meridians are great circles. The circumference of a great circle is equal to the length of the equator or any meridian. Find the length of a great circle on Earth in miles.
| City | Latitude | Longitude
| A | 37°59'N | 84°28'W
| B | 34°55'N | 138°36'E
| C | 64°4'N | 21°58'W
Simplifying the equation gives us the length of the great circle between cities A and B. You can follow the same process to calculate the distances between other pairs of cities.
To find the length of a great circle on Earth, we need to calculate the distance between the two points given by their latitude and longitude.
Using the formula for calculating the distance between two points on a sphere, we can find the length of the great circle.
Let's calculate the distance between cities A and B:
- The latitude of the city A is 37°59'N, which is approximately 37.9833°.
- The longitude of city A is 84°28'W, which is approximately -84.4667°.
- The latitude of city B is 34°55'N, which is approximately 34.9167°.
- The longitude of city B is 138°36'E, which is approximately 138.6°.
Using the Haversine formula, we can calculate the distance:
\(distance = 2 * radius * arcsin(sqrt(sin((latB - latA) / 2)^2 + cos(latA) * cos(latB) * sin((lonB - lonA) / 2)^2))\)
Substituting the values:
\(distance = 2 * 3960 * arcsin(sqrt(sin((34.9167 - 37.9833) / 2)^2 + cos(37.9833) * cos(34.9167) * sin((138.6 - -84.4667) / 2)^2))\)
Simplifying the equation gives us the length of the great circle between cities A and B. You can follow the same process to calculate the distances between other pairs of cities.
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The length of a great circle on Earth is approximately 24,892.8 miles.
To find the length of a great circle on Earth, we need to calculate the distance along the circumference of a circle with a radius of 3960 miles.
The circumference of a circle is given by the formula C = 2πr, where C is the circumference and r is the radius.
Substituting the given radius, we get C = 2π(3960) = 7920π miles.
To find the length of a great circle, we need to find the circumference.
Since the circumference of a great circle is equal to the length of the equator or any meridian, the length of a great circle on Earth is approximately 7920π miles.
To calculate this value, we can use the approximation π ≈ 3.14.
Therefore, the length of a great circle on Earth is approximately 7920(3.14) = 24,892.8 miles.
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Vector A has a magnitude of 1.5 and is at an angle of 25 degrees below the positive x-axis. What are the x-component and y-component of the vector A ?
A
x
=1.5, and A
y
=−1.5
A
x
=1.4, and A
y
=0.6
A
x
=1.4, and A
y
=−0.6
A
x
=−1.4, and A
Y
=−0.6
A
x
=−1.4, and A
Y
=0.6
The x-component of vector A is approximately 1.4, and the y-component of vector A is approximately -0.6.
To determine the x-component and y-component of vector A, we need to use the given magnitude and angle information.
Given that vector A has a magnitude of 1.5 and is at an angle of 25 degrees below the positive x-axis, we can use trigonometric functions to find the x-component and y-component.
The x-component can be found using the formula: A_x = A * cos(theta), where A is the magnitude of the vector and theta is the angle with respect to the positive x-axis. Substituting the values, we have: A_x = 1.5 * cos(25°) ≈ 1.4.
The y-component can be found using the formula: A_y = A * sin(theta), where A is the magnitude of the vector and theta is the angle with respect to the positive x-axis. Substituting the values, we have: A_y = 1.5 * sin(25°) ≈ -0.6.
Therefore, the x-component of vector A is approximately 1.4, and the y-component of vector A is approximately -0.6.
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1.
Which statement about f(x) = 2x2 – 3x - 5 is true?
A The zeros are - and -1, because f(x) = (x + 1)(2x + 5).
2
5
B The zeros are - and 1, because f(x) = (x - 1)(2x + 5).
2
C The zeros are -1 and, because f(x) = (x + 1)(2x-5).
The zeros are 1 and, because f(x) = (x - 1)(2x - 5).
9514 1404 393
Answer:
C. The zeros are -1 and 5/2, because f(x) = (x + 1)(2x-5).
Step-by-step explanation:
The zeros of the function are the values that make the factors zero. The factors need to multiply out to give the original standard-form equation.
The sign of the constant (-5) tells you the product of the constants in the factors must be -5. That is only true for choices B and C.
Additionally, the x-term needs to match the result of multiplying out the factors.
B. (x -1)(2x +5) = 2x^2 +3x -5 . . . . . . . . . wrong x-term (not -3x)
C. (x +1)(2x -5) = 2x^2 -3x -5 . . . . . . . . . matches the given f(x)
The factors of C are zero when x=-1, x=5/2.
CAN SOMEBODY HELP. Unscramble the words to correctly to state a fact.
Respiration usable energy cellular create cells through
Answer:
Cells create usable energy through Cellular Respiration.
Step-by-step explanation:
If you think about it, cellular respiration is the way cells make their food, or usable energy. Therefore, the answer would be up above-------------------------^^
a man has two kids. you know one of them is a boy. what are the odds that both of his kids are boys?
The probability that both of his kids are boys are 1/3.
ProbabilityIf a man has 2 kids, the possible combinations of kids are:
Boy, boyBoy, girlsGirl, boyGirl, girlThere are 4 possible combinations of the sexes of the two kids.
The fourth possibility is impossible, because one of the kids is a boy. So it can't be both girls. Then the possible combinations are:
Boy, boyBoy, girlGirl, boyThe number of combinations of the both kids are boys = 1
The number of combinations that minimum one kid is boy = 3
Then the probability that both of kids are boys are:
\(P_{both boy}=\frac{both boy}{minimal one boy} \\P_{both boy}=\frac{1}{3} \\\)
So the probability both of kids are boy is 1/3.
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Question
Joshua's goal is to sell more than 20 items at a farmers' market. So far, he has sold 6 items. Each customer buys 2 items.
Let c represent the number of additional customers Joshua must have to meet his goal.
Drag and drop the answer into the box to correctly complete the statement.
Put responses in the correct input to answer the question. Select a response, navigate to the desired input and insert the response. Responses can be selected and inserted using the space bar, enter key, left mouse button or touchpad. Responses can also be moved by dragging with a mouse.
Joshua needs to have more than Response area additional customers to meet his goal.
Joshua will need 7 additional customers.
How to determine the number of customers he needs?
The parameters that will help us to determine the number of customers is give as follows:
Joshua's goal is to sell more than 20 items at a farmers' market. So far, he has sold 6 items. Each customer buys 2 items.
Since Joshua's goal is to sell more than 20 items at a farmers' market and he has sold 6 items. and If each of his customers buys 2 items, the number of additional customers needed will be:
= (20 - 6) / 2
This is given as 14 / 2
The the number of customers needed = 7
In conclusion He will need 7 additional customers.
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Please help really fast. I will give brainliest
In 1872, a ship crashed and some mice were released on a deserted island, where there population quadrupled each year. In 1879, there were 983,040 mice. How many mice were on the original ship in 1872?
Answer:60
Step-by-step explanation:
Yolo has 2 pieces of string. One is 32 inches long, the other is 48 inches long. She wants to make as many necklaces as she can, all of the same length. What is the longest necklace that can be made?
The Greatest Common Factor of 32 and 48 is 16.
The longest necklace she can make is of 16 inches length.
A company rents out 15 food booths and 22 game booths at the county fair. The fee for a food booth is $175 plus $8 per day. The fee for a game booth is $80 plus $7 per day. The fair lasts for d days, and all the booths are rented for the entire time. Enter a simplified expression for the amount, in dollars, that the company is paid.
Answer: ($2100+96d) + ($2755+116d)
= $4855+212d
Suppose int i = 5, which of the following can be used as an index for array double[] t=new double[100]? A. i B. I +6.5 C.1 + 10 D. Math.random() * 100 E. (int)(Math.random() * 100))
The options that can be used as indices for the array are option A (i) and option E ((int)(Math.random() * 100)).
To determine which expressions can be used as an index for the array double[] t = new double[100], let's evaluate each option :
A. i: Since i is an integer variable with a value of 5, it can be used as an index because it falls within the valid index range of the array (0 to 99).
B. I + 6.5: This expression adds 6.5 to the variable i. Since array indices must be integers, this expression would result in a double value and cannot be used as an index.
C. 1 + 10: This expression evaluates to 11, which is an integer value and can be used as an index.
D. Math.random() * 100: The Math.random() function returns a double value between 0.0 (inclusive) and 1.0 (exclusive). Multiplying this value by 100 would still result in a double value, which cannot be used as an index.
E. (int)(Math.random() * 100): By multiplying Math.random() by 100 and casting the result to an integer, we obtain a random integer between 0 and 99, which falls within the valid index range and can be used as an index.
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Stuff attatched below
Answer:
AE:\(\sqrt{15300}\)
DE:150
PABCDE: 720
Step-by-step explanation:
We can find AE by the pythagorean theorem, \(a^{2}+b^{2}=c^{2}\)
AE is the hypotenuse so AE=c, and the leg of the triangle would be 150-30=120
\(50^{2}+120^{2}=c^{2}\)
c^2=2500+14400
AE=130
We can use the pythagorean theorem again to find DE.
The base would equal 140-50=90 and the height would equal 120
\(90^{2} +120^{2} =DE^{2}\)
DE^2=22500
DE=150
The perimeter would be 150+140+150+130+150=720
Let me know if somethings wrong
Help Me Mr Thompson!
I'll do problems 2 through 6 to get you started.
=================================================
Problem 1
You have the correct answer. You add the take home pay of his first job (504.64) to the amount he earns on his second job (40) to get 541.64 as his net monthly income.
=================================================
Problem 2
Add up any dollar amount that's leaving his pocket. Only focus on expenses that occur monthly. So we will ignore the one time payment of getting that theme park ticket, and we'll also ignore any gifts he buys.
In the second paragraph of the info you're given, all of the expenses we need are here. He has car insurance (110), gas and maintenance (65), and a cell plan (30). In total, his monthly expenses are 110+65+30 = 205 dollars per month.
Answer: $205=================================================
Problem 3
Subtract the net monthly income (problem 1) and the expenses (problem 2) to get the amount of discretionary spending he has
541.64 - 205 = 336.64
This value is a positive number, so that means he has money to do whatever he wants with it such as buying that park ticket or buying those gifts.
Answer: $336.64=================================================
Problem 4
His short-term goals are to buy the Six Flags ticket, and buy gifts for his friends and family. He also wants to buy an e-reader for himself.
The six flags trip will cost him 50+35+50 = 135 dollarsThe gifts for his friends/family will cost him $200The gift for himself will cost him $80These are all short-term goals as they are in a relatively short time window of less than a year.
Add up those values to get
135+200+80 = 415
So his short-term goals will cost a total of $415
=================================================
Problem 5
His long-term goals are saving up for college to pay for tuition and books. As the instructions say, long-term goals are ones that you need more than a year in advance to plan for. This is because the expense is much greater compared to those various short-term goal items.
=================================================
Problem 6
Subtract 135 from the net monthly income you calculated in problem 1
541.64 - 135 = 406.64
Answer: $406.64solve. x/2 + 1/3 greater than 0
Answer:
x > -2/3
Step-by-step explanation:
\(\frac{x}{2} +\frac{1}{3} > 0\) , subtract 1/3 from both sides
\(\frac{x}{2} > \frac{-1}{3}\) , multiply both sides by 2
\(x > \frac{-2}{3}\)
Calculate.
о Са
9
Note: Cr = (-)!
n!
n
\(_9C_4=\dfrac{9!}{4!5!}=\dfrac{6\cdot7\cdot8\cdot9}{2\cdot3\cdot4}=126\)
HELPP PLEASE!!!!!!!!
Susan started her homework at 1:59 p.M. And finished her homework 96 minutes later. Susan had volleyball practice at 4:00 p.M.
Answer:
25 minutes
Step-by-step explanation:
usan started her homework at 1:59 pm. And finished her homework 96 minutes later. Susan had volleyball practice at 4:00 p.M. How much time did Susan have between finisng her homework and the beginning of volleyball practice?
1 hour = 60 minutes
If her assignment took her 96 minutes, converted to hours, then it took her 1 hour 36 minutes
Time she finished her assignment = 1:59 + 1:36 = 3:35 pm
time between when she finished and started practice = 4 : 00 - 3:35 = 25 minutes
HELP SLLSLSLSKSKSKALSKSSKAKSKLSSKL
Answer:B
Step-by-step explanation:
Solve 4(9)^x =2,916 , for x
1/2.5+1/5.8+1/8.11+...+1/97.100
Answer:
that's is the correct answer
Step-by-step explanation:
hope it helps
What is the volume, in cubic inches, of a rectangular prism with a height of 19 inches,
a width of 8 inches, and a length of 17 inches?
Answer: 2584
Step-by-step explanation: Length × height × width
okay guys last one =)
The function that is likely the best fit is given as follows:
Logarithmic regression.
How to define the function of best fit?The function of a best fit is a logarithmic regression, as the function starts with a fast increasing rate until it approaches the vertical asymptote.
As for the other options, we have that:
It is not quadratic as the function is increasing over it's entire domain.It is not linear as the rate of increase is not constant.It is not exponential as the increase rate slows down as the input increases.More can be learned about functions at https://brainly.com/question/15602982
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Mrs. Mack is looking at the blueprints for a new factory. On the blueprint, the factory floor is a rectangle with a length of 0.3 meter and a width of
0.25 meter. The factory will be built by using a scale factor of 140.
Mrs. Mack wants to know the area of the factory floor. She decides to do this by first determining the dimensions of the factory floor.
What will be the length of the factory floor?
Enter your answer in the box
Answer:
42 meters
Step-by-step explanation:
The length of the factory floor will be 42 meters. This is found by multiplying the length of 0.3 meters by the scale factor of 140, which yields 42 meters.
Answer:
42 meters
Step-by-step explanation:
its correct :)