Answer:
To prove that there exist infinitely many integers n such that n^2 + 1 is squarefree, we can use a proof by contradiction.
Assume the contrary, that there are only finitely many integers n such that n^2 + 1 is squarefree. Let's denote these integers as n_1, n_2, ..., n_k, where k is a finite positive integer.
Consider the number N = (n_1^2 + 1) * (n_2^2 + 1) * ... * (n_k^2 + 1) + 1.
Note that N is an integer and is greater than each of the numbers n_i^2 + 1 for i = 1 to k. Since n_i^2 + 1 is squarefree for each i, N is also squarefree, as it is not divisible by any square number other than 1.
However, N cannot be equal to any of the n_i^2 + 1, as N is strictly greater than each of them. This contradicts our assumption that n_1, n_2, ..., n_k are all the integers such that n^2 + 1 is squarefree.
Therefore, our assumption must be false, and there exist infinitely many integers n such that n^2 + 1 is squarefree. This completes the proof by contradiction.
Step-by-step explanation:
[tex]\sqrt[5]{128}[/tex]
this will be the square -
[tex]2 \times \sqrt[5]{4} [/tex]
or 2,63902
Un comerciante desea mezclar habichuelas rojas que cuestan $3.5 por libra, con habichuelas negras que cuestan $4 por libra, para obtener 20 libras de una mezcla que cueste $3.75 por libra. ¿Cuántas libras de cada variedad debe mezclar
The merchant needs to mix 10 pounds of red beans and 10 pounds of black beans to get a mix that costs $3.75 per pound.
We have,
Let's assume that the merchant needs to mix x pounds of red beans and (20 - x) pounds of black beans.
To find the pounds of each variety, we can use the following equation:
= 3.5x + 4(20 - x)
= 3.75(20)
Simplifying the equation.
3.5x + 80 - 4x = 75
-0.5x = -5
x = 10
Therefore,
The merchant needs to mix 10 pounds of red beans and 10 pounds of black beans to get a mix that costs $3.75 per pound.
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The complete question.
A merchant wants to mix red beans that cost $3.5 per pound with black beans that cost $4 per pound to get 20 pounds of a mix that costs $3.75 per pound. How many pounds of each variety should he mix?
In the state of Pennsylvania 12% of students submit box tops for education to their school. a large school district in western Pennsylvania runs a contest to see if they can increase participation. the superintendent takes a random sample of 210 students from the district and finds that 35 have submitted box tops this year.
(a) do these data provide convincing evidence that the contest has increased participation in the box tops for education program?
(b) interpret the p-value from part (a).
If in sample of 210 students from district and finds 35 have submitted "box-tops" this year, then
(a) Yes, data provide enough evidence regarding contest which has increased participation in "box-tops" for "education-program",
(b) the p-value is 0.0187.
Part(a) : To find if contest has increased the participation in "box-tops" for "education-program", we conduct a "hypothesis-test".
We use a "significance-level" of 0.05, which means we will accept a 5% chance of making a "Type I Error",
Let Null Hypothesis ⇒ The proportion of students submitting "box-tops" is = 12%,
Let Alternative Hypothesis ⇒ The proportion of students submitting "box-tops" for education is increased after contest,
To test above hypothesis, we use "one-sample" proportion-test.
We will use the sample proportion (p') = 35/210 = 0.1667, as estimate of population proportion (p).
So, "test-statistic" (z) is ⇒ z = (p' - p₀)/√(p₀ × (1-p₀)/n),
where n = sample size,
In "Null-Hypothesis", the "expected-value" of the test statistic is 0, and "standard-deviation" of the "test-statistic" is √(p₀×(1-p₀)/n),
Substituting, p₀ = 0.12 and n = 210,
We get,
⇒ z = (0.1667 - 0.12)/√(0.12 x 0.88/210) ≈ 2.08,
Now, we know that "right-tailed" critical value at 0.05 level is = 1.645,
Since, z (2.08) > 1.645, the Null-Hypothesis is Rejected.
So, above data provides enough evidence regarding contest has increased the participation in "box-tops" for "education-program".
Part(b) : We need to find the "p-value" for the test-statistic that we found in part(a),
So, p-value = P(z>2.08),
⇒ 1 - P(z ≤ 2.08),
⇒ 1 - 0.9813,
⇒ 0.0187,
Therefore, the required "p-value" is 0.0187.
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In each of 10 consecutive weeks, 1000 college students were randomly selected and the number who applied for credit cards that that weck was determined. The results are listed below. Find the values you would use for the centerline, the upper control limit, and the lower control limit.
465 502 395 488 472 462 524 434 481 386
The centerline= 459.9
The upper control limit= 852.55.
The lower control limit = 67.25.
How do we calculate?We determine the mean to set up the standard limits:
Mean is gotten as :
(465 + 502 + 395 + 488 + 472 + 462 + 524 + 434 + 481 + 386) / 10
mean = 459.9
we then find the Standard Deviation:
Standard Deviation = √variance
variance = ((465-459.9)^2 + (502-459.9)^2 + (395-459.9)^2 + (488-459.9)^2 + (472-459.9)^2 + (462-459.9)^2 + (524-459.9)^2 + (434-459.9)^2 + (481-459.9)^2 + (386-459.9)^2) / 9
variance = 17119.1
Standard Deviation = √(17119.1)
Standard Deviation= 130.88
Hence
Centerline = 459.9
upper control limit = 459.9 + 3 x (130.88) = 852.55
lower control limit. = 459.9 - 3 x (130.88) = 67.25
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Aisha and Malik are making fruit salads for a picnic. Aisha mixes 4 cups of melon and 1 cup of apple and Malik mixes 13 cups of melon and 3 cups of apple. Use Aisha and Malik’s percent of melon to determine whose fruit salad will taste more melony.
Answer:
Maliks fruit salad will taste more melony
Step-by-step explanation:
To determine whose fruit salad will taste more "melony," we can calculate the percentage of melon in each fruit salad for Aisha and Malik.
For Aisha's fruit salad:
Total cups of fruit = 4 cups of melon + 1 cup of apple = 5 cups
Percentage of melon = (4 cups of melon / 5 cups of total fruit) x 100%
For Malik's fruit salad:
Total cups of fruit = 13 cups of melon + 3 cups of apple = 16 cups
Percentage of melon = (13 cups of melon / 16 cups of total fruit) x 100%
Now we can calculate the percentages:
Aisha's percentage of melon:
(4 cups of melon / 5 cups of total fruit) x 100% = 80%
Malik's percentage of melon:
(13 cups of melon / 16 cups of total fruit) x 100% ≈ 81.25%
Based on the calculations, Malik's fruit salad has a higher percentage of melon (81.25%) compared to Aisha's fruit salad (80%). Therefore, Malik's fruit salad is likely to taste more "melony" compared to Aisha's fruit salad.
Need help please
Geometry
Answer:
vertical because they are right across from each with the same degrees
You have 36 liters of fuel and just added 4,000 milliliters more. How many hectoliters of fuel do you have?
Answer:
we have to first start converting the given volume to liters, since the answer is expected in hectoliters.
36 liters + 4,000 milliliters = 36 liters + 4 liters = 40 liters
1 hectoliter = 100 liters
Therefore, we have:
40 liters = 0.4 hectoliters
So, we have 0.4 hectoliters of fuel.
Answer:
0.4 hectoliters of fuel
Step-by-step explanation:
We Know
You have 36 liters of fuel and just added 4,000 milliliters more.
How many hectoliters of fuel do you have?
1000 milliliters = 1 liters
4000 milliliters = 4 liters
We Take
36 + 4 = 40 liters of fuel
We Convert 40 liters to hectoliters
1 liter = 0.01 hectoliters
40 liters = 40 x 0.01 = 0.4 hectoliters
So, you have 0.4 hectoliters of fuel.
Ms. Estrada, the art teacher at Riverview Elementary School, is painting a mural in the school library. The mural is 20 feet long, and Ms. Estrada splits the mural into 8-inch sections to paint. It takes her about 50 minutes to paint each section. About how many hours will it take Ms. Estrada to complete the mural?
It will take Ms. Estrada about 25 hours to complete the mural.
Describe Algebra?Algebra is a branch of mathematics that deals with the study of mathematical symbols and their manipulation. It involves the use of letters, symbols, and equations to represent and solve mathematical problems.
In algebra, we use letters and symbols to represent unknown quantities and then use mathematical operations such as addition, subtraction, multiplication, division, and exponentiation to manipulate those quantities and solve equations. We can use algebra to model and solve real-world problems in various fields such as science, engineering, economics, and finance.
Some common topics in algebra include:
Solving equations and inequalities
Simplifying expressions
Factoring and expanding expressions
Graphing linear and quadratic functions
Using logarithms and exponents
Working with matrices and determinants
First, we need to convert the length of the mural from feet to inches to match the unit of the sections.
20 feet x 12 inches/foot = 240 inches
Then, we need to determine the number of sections in the mural:
240 inches / 8 inches/section = 30 sections
Now, we can find the total time it will take Ms. Estrada to complete the mural:
30 sections x 50 minutes/section = 1500 minutes
Finally, we can convert the time to hours:
1500 minutes / 60 minutes/hour = 25 hours
Therefore, it will take Ms. Estrada about 25 hours to complete the mural.
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find the value of each trigonometric ratio in simplist form
Okay, let's go through this step-by-step:
1) sin(A) = opposite/adjacent = BC/AB = 18/24 = 3/4
2) cos(A) = adjacent/hypotenuse = AB/AC = 24/30 = 4/5
3) tan(A) = sin(A) / cos(A) = (3/4) / (4/5) = 3/4
4) sec(A) = 1/cos(A) = 1/4/5 = 5/4
5) csc(A) = 1/sin(A) = 1/3/4 = 12/3
In simple terms:
sin(A) = 3/4
cos(A) = 4/5
tan(A) = 3/4
sec(A) = 5/4
csc(A) = 12/3
Let me know if you need more details.
The data shows the number of years that a random sample of 20 employees worked for an insurance company before retirement. Employee Number Years Worked 1 8 2 13 3 15 4 3 5 13 6 28 7 4 8 12 9 4 10 26 11 29 12 3 13 10 14 3 15 17 16 13 17 15 18 15 19 23 20 13 The sample mean for the number of years worked is , and % of the employees in the sample worked for the company for at least 10 years. Round your answers to the nearest integer.
The sample mean for the number of years worked is 12.9, and 35% of the employees in the sample worked for the company for at least 10 years.
To find the sample mean, we need to add up all the years worked and divide by the total number of employees:
8 + 13 + 15 + 3 + 13 + 28 + 4 + 12 + 4 + 26 + 29 + 3 + 10 + 3 + 17 + 13 + 15 + 15 + 23 + 13 = 258
So, the sample mean is 258/20 = 12.9 (rounded to the nearest tenth).
To find the percentage of employees who worked for at least 10 years, we need to count the number of employees who worked for 10 years or more.
From the data, we see that 7 employees worked for at least 10 years (Employee Number: 2, 3, 5, 10, 11, 15, and 19). So, 7 out of 20 employees worked for at least 10 years, which is 35%. Therefore, the answer is 35% (rounded to the nearest integer).
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Find the exact value of x. (7 - 9).
Find the exact values of x and y. (10 - 12).
7. The exact values of x is 17.
8. The exact values of x is 12.
9. The exact values of x is 10.9.
10. The exact values of y is 15.
11. The exact values of y is 15.
12. The exact values of y is 6.
What is the exact value of x and y?
The exact values of x and y is calculated by applying Pythagoras theorem as follows;
7.
x² = 8² + 15²
x² = 289
x = √289
x = 17
8.
x² = 15² - 9²
x² = 144
x = √144
x = 12
9.
x² = 12² - 5²
x² = 119
x = √119
x = 10.9
The value of y is calculated as follows;
10.
y² = 12² + 9²
y² = 225
y = √(225)
y = 15
11.
y² = 17² - 8²
y² = 225
y = √(225)
y = 15
12.
y/10 = 6/10
y = 6
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The graph of f(x) = e^x-1+5 is shown below. g(x) is a transformation of
f(x). How would you write the equation for the function g(x)?
Ax) = 8²1
+5
15
10
-10
-15
a.
g(x)
5
10 15 20 25
O A g(x) = 3e² - 1
B. g(x) = e²-¹ - 8
C. g(x) = e-5
D. g(x) = -1 -3
Answer- e^x-1-3
Step-by-step explanation:
To have a driver's license you must be at least 16 years old, and no more than 85 years old.
a. Represent the ages of people who can get a driver's license in three forms.
b. Represent the ages of people who cannot get a driver's license in three forms.
*In Symbolic/Inequality and number line*
The ages of people who can get a driver's license can be represented in three forms as follows;
x ≥ 16
x ≤ 85
16 ≤ x ≤ 85
The ages of people who cannot get a driver's license can be represented in three forms as follows;
x ≤ 16
x ≥ 85
16 ≥ x ≥ 85
What is an inequality?In Mathematics and Geometry, an inequality simply refers to a mathematical relation that is typically used for comparing two (2) or more numerical data and variables in an algebraic equation based on any of the inequality symbols;
Greater than (>).Less than (<).Greater than or equal to (≥).Less than or equal to (≤).Assuming the variable x denotes the ages of people who wishes to obtain a driver's license, a set of inequality which can be used to represent those who are eligible in three forms include;
x ≥ 16
x ≤ 85
16 ≤ x ≤ 85
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Suppose that you are thinking about buying a car and have narrowed down your choices to two options.
The new-car option: The new car costs $31,000 and can be financed with a three-year loan at 7.19%.
The used-car option: A three-year old model of the same car costs $16,000 and can be financed with a four-year
loan at 5.89%.
What is the difference in monthly payments between financing the new car and financing the used car? Use
PMT=
[-(19]
The difference in monthly payments between financing the new car and financing the used car is
(Round to the nearest cent as needed.)
Answer:
To calculate the monthly payments for each option, we can use the PMT function in Excel or a financial calculator.
For the new car option:
Loan amount = $31,000
Interest rate (annual) = 7.19%
Loan term = 3 years
Number of payments = 3 x 12 = 36
Using the PMT function in Excel, we get:
PMT(7.19%/12, 36, -$31,000) = $966.59
For the used car option:
Loan amount = $16,000
Interest rate (annual) = 5.89%
Loan term = 4 years
Number of payments = 4 x 12 = 48
Using the PMT function in Excel, we get:
PMT(5.89%/12, 48, -$16,000) = $385.36
The difference in monthly payments between the two options is:
$966.59 - $385.36 = $581.23
Therefore, the difference in monthly payments between financing the new car and financing the used car is $581.23.
Step-by-step explanation:
A party company is designing a new line of individualized bubbles for various celebrations such as birthday parties, weddings, and anniversaries. The bubbles will be sold in various-sized packs. The individual container of bubbles will be a plastic cylindrical tube with a diameter 2 cm and a height of 8 cm.
How many square centimeters of plastic are needed for one tube of bubbles?
Round your answer to the nearest whole number.
A. 50 cm^2
B. 57 cm^2
C. 63 cm^2
D. 53 cm^2
The correct answer is option B. That is the amount of plastic needed for making one plastic cylinder is 57 cm²
What is a cylinder?A cylinder is a three-dimensional geometric shape that has two congruent circular bases that lie parallel to each other and are connected by a curved surface. It can be thought of as a stack of circles or as a prism with a curved surface. Some common examples of cylinders include soda cans, water bottles, and pipes.
Given that the individual container of bubbles will be a plastic cylindrical tube with a diameter 2 cm and a height of 8 cm.
So radius = diameter/2 = 2/2 = 1 cm.
The surface area of the cylinder = 2πrh + 2πr²
SA = 2π × 1 ×8 + 2π × 1²
SA = 2π + 16π
SA = 18π
Substituting the value of π = [tex]\frac{22}{7}[/tex]
Hence, SA = 18π = 18 × [tex]\frac{22}{7}[/tex] ≈ 56.57
Rounding to the nearest integer, we get:
Answer: B. 57 cm^2.
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This is indirect measurement, I need some help on this one ):
The height of the building , given the shadow that it casts would be 93 meters tall .
How to find the height of the building ?Utilizing proportions can be an effective method to tackle this issue. By defining ' h ' as the height of the building responsible for casting a 39.75 meter shadow, we may establish the ensuing proportion :
h / 39. 75 = 3. 2 / 1. 37
Solving for h gives us :
h / 39. 75 = 2. 336
h = 2. 336 x 39. 75
h = 92. 8 56
h = 93 meters tall
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Calculate how far the village is north of O
Step-by-step explanation:
See image
Consider the number 3^6.
Rewrite the number as the product of two whole-number powers of 3.
We can rewrite 3^6 as the product of two whole-number powers of 3 as: [tex]3^4 . 3^2.[/tex]
How can we rewrite the number as the product?To rewrite 3^6 as the product of two whole-number powers of 3, we need to find two exponents that add up to 6.
A way to do this is to use the fact that 3^4 = 81, which is close to 3^6.
Specifically, we have:
3^6 = 3^4 * 3^2
We can check that this is true by using the rule for multiplying exponents that states that a^m * a^n = a^(m+n).
Applying this rule, we get:
= 3^4 * 3^2
= 3^(4+2)
= 3^6.
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Plot the numbers -2 3/4 and 5/2 on the number line below.
Answer: see attached image
Step-by-step explanation:
since the distance between each number is split into fourths, that is the interval it is increasing.
5/2 simplified is 2 and 1/2. so you go 2 tick marks after the 2.
-2 and 3/4 goes 3/4 (3 tickmarks) after the -2.
8. You and your friend each collect coins and stamps. Your friend collects one fifth as many coins and twice as many stamps as you. You collect a total of 70 coins and stamps. Your friend collects a total of 95 coins and stamps.
How many coins and how many stamps do you each collect?
Answer:
you: 25 coins, 45 stampsfriend: 5 coins, 90 stampsStep-by-step explanation:
Given you have collected 70 coins and stamps, and your friend has collected 1/5 as many coins and twice as many stamps, for a total of 95 coins and stamps, you want the numbers of each.
SetupWe can let x represent the number of coins you have collected. Then 70 -x is the number of stamps you have collected. The corresponding numbers for your friend are x/5 coins and 2(70-x) stamps. Your friend's collection is ...
x/5 +2(70 -x) = 95
Solution-9/5x +140 = 95 . . . . . . . . simplify
45 = 9/5x . . . . . . . . . . . . . add 9/5x -95
25 = x . . . . . . . . . . . . . . . . multiply by 5/9
70 -x = 45
1/5x = 5
2(70 -x) = 90
You collect 25 coins and 45 stamps; your friend collects 5 coins and 90 stamps.
<95141404393>
1. Trish can complete 10 problems in 60 minutes. At this rate, could she complete 25 problems in 130 minutes? Write your answer as Yes or No.
2. How many minutes would it take Trish to complete 15 problems?
3. Solve the proportion. 5/27 = x/54. Write your answer as x = "_".
Why do we receive two answers in a projectile motion formula , a negative and a positive?
Answer:
Both solutions are valid, and depending on the context of the problem, one or both solutions may be useful in solving for different parameters, such as the maximum height or the time of flight of the projectile.
Step-by-step explanation:
In a projectile motion formula, such as the one that describes the height of an object in motion as a function of time, there are two solutions because the object can reach the same height at two different times during its trajectory.
The negative solution represents the time it takes for the object to reach its maximum height and then start falling back down to the ground. The positive solution represents the time it takes for the object to reach the same height on its way up.
So, both solutions are valid, and depending on the context of the problem, one or both solutions may be useful in solving for different parameters, such as the maximum height or the time of flight of the projectile.
The royal fruit company produces 2 types of drinks. The first type is 35% pure fruit juice,and the second type is 85%pure fruit juice. The company is attempting to produce a fruit drink that contains 75% pure fruit juice. How many pints of each of the two existing type of drink must be used to make 150pints of a mixture that is 75% pure fruit juice
Answer:
We should use 30 pints of the first drink and 120 pints of the second drink
Step-by-step explanation:
Let x represent the number of pints of the first drink used
Volume of fruit juice in x pints = 35% of x = 0.35x
Let y represent the number of pints of the second drink used
Volume of fruit juice in y pints = 85% of y= 0.85y
Since the final mixture volume is 150 pints we get
x + y = 150 ..... [1]
If the final mixture has to contain 75% pure fruit juice, the volume of fruit juice in the mixture = 0.75 x 150 = 112.5 pints
Therefore
0.35x + 0.85y = 112.5 ...[2]
We will solve this set of simultaneous equations by making the coefficients of one of the variables equal and then subtracting to eliminate that variable
Multiply equation [1] by 0.35 to get the x coefficients equal
0.35 x [1]
=> 0.35(x + y) = 0.35(150)
=> 0.35x + 035y = 52.5 ... [3]
Subtract [3] from [2]:
[3] - [2] =>
0.35x + 0.85y - (0.35x + 035y) = 112.5 - 52.5
0.35x + 0.85y - 0.35x - 0.35y = 60
0x + 0.5y = 60
0.5y = 60
y = 60/0.5
y = 120
Therefore x = 150 - 120 = 30
Therefore we should use 30 pints of the first drink and 120 pints of the second drink
An element with mass 420 grams decays by 11.8% per minute. How much of the element is remaining after 16 minutes, to the nearest 10th of a gram?
After 16 minutes of decay, approximately 182.3 grams of the element remains.
To calculate how much of the element remains after 16 minutes of decay, we can use the formula for exponential decay:
A = A₀ * [tex]e^{(-kt)[/tex]
where A is the amount of the element remaining after time t, A₀ is the initial amount of the element, k is the decay constant, and t is the elapsed time.
In this case, we have A₀ = 420 grams, k = 0.118 (since the element decays by 11.8% per minute), and t = 16 minutes. Plugging these values into the formula, we get:
A = 420 * [tex]e^{(-0.118*16)[/tex]
A = 182.3 grams
We round our answer to the nearest 10th of a gram, as requested in the problem.
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9. data was collected on houses currently for sale. based on a cubic modeling equation, which prediction about this data is the most reliable? a.
a $70k house would have 1,354 square ft
b. a $70k house would have about 1,460 square ft
c. a $400k house would have 492 square ft
d. a $400k house would have 4,328 square ft
10. suppose a scatterplot is created from the points in the following table. when x=7, what is the second coordinate in a scatterplot of the linearized data? round the answer to the tenth place.
a. 0.8
b. 2.1
c. 54.3
d. 112.8
11. the equation that best models the linearized data for a particular data set is log y= 0.75821x+0.03442. find the approximate value x=4. round your answer to the nearest whole number.
a. 3
b. 25
c. 1,168
d. 62,034
question 9.
Based on a cubic modeling equation, the prediction about this data that is most reliable is a $70k house would have 1,354 square ft.
Option A is correct.
Question 10.
The second coordinate in a scatterplot of the linearized data and rounding the answer to the tenth place is 0.8
Option A is correct.
Question 11.
The approximate value when x=4 and rounding the answer to the nearest whole number is 1,168
Option C is correct.
How do we calculate?The equation is given as
Log y= 0.75821x+0.03442
We substitute x = 4 into the given equation and solve for y:
log y = 0.75821(4) + 0.03442
log y = 3.07286 + 0.03442
log y = 3.10728
We take the antilogarithm of both sides,
y = 10^(3.10728)
y = 1,168.66
Rounding off, the closest answer is option (c) 1,168.
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K(10,..), L. (..,20), and M (30,.. .. are on that line too. Write their missing coordinates.
The coordinate of points K, L and M is the location of the points on a coordinate plane
Here, we have,
to determine the missing coordinates:
The given parameters are:
K = (10, )
L = ( ,10)
M = (30, )
The question has missing parameters.
So, I will assume that the line is a perfectly horizontal line.
This means that the y-coordinates of points K, L and M are equal.
The y-coordinate of point L is 10.
So, we have:
K = (10, 10)
L = ( ,10)
M = (30, 10)
Assume that point L is halfway points K and M, then we have:
K = (10, 10)
L = (20, 10)
M = (30, 10)
See attachment for the diagram of the coordinate plane showing the line
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Solve for the value of x. Show your work and explain the steps you used to solve. Round your answer to the nearest
tenth.
B
D x
45
24
C
The calculated value of x from the special triangle is 17.0
Calculating the value of xFrom the question, we have the following parameters that can be used in our computation:
The right triangle
The right triangle is a special triangle that has a measure of 45 degrees
For a triangle that has a measure of 45 degrees, we have
Hypotenuse = Legs√2
In this case, we have
Leg = x
Hypotenuse = 24
So, we have
x√2 = 24
Divide by √2
x = 24/√2
Evaluate
x = 17.0
Hence, the calculated value of x is 17.0
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a cube is cut into two pieces by a single slice that passes through point a,band c what shape is the cross section
If points A, B, and C are not three nonadjacent vertices of the cube or three adjacent vertices of the cube, then the cross-section will be a polygon with more than four sides, and its shape will depend on the location of the points A, B, and C on the cube.
What is meant by cross section?
The form we obtain by cutting a straight through an object is called a cross-section.
The shape of the cross section of a cube that is cut into two pieces by a single slice that passes through point A, B, and C depends on the location of these points on the cube.
If points A, B, and C are three nonadjacent vertices of the cube, then the cross section will be a triangle. Specifically, it will be an isosceles triangle with base equal to the length of the edge of the cube and legs equal to the distances between point A and the other two points B and C.
If points A, B, and C are three adjacent vertices of the cube, then the cross section will be a square. Specifically, it will be a square with side length equal to the length of the edge of the cube.
If points A, B, and C are not three nonadjacent vertices of the cube or three adjacent vertices of the cube, then the cross section will be a polygon with more than four sides, and its shape will depend on the location of the points A, B, and C on the cube.
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3 divided by 2/5 quotient
Answer:
3 divide 2/5 is 7.5 since 2/5 is 0.4
x^2+25x+136=0 use the quadratic formula
Using the quadratic equation, the solution is x = -8 and x = -17.
What is the quadratic equation?A second-order equation of the form ax2 + bx + c = 0 denotes a quadratic equation, where a, b, and c are real number coefficients and a 0.
The equation is x²+25x+136=0
where a, b, and c are the coefficients of the quadratic equation ax² + bx + c = 0.
For the given equation x² + 25x + 136 = 0, we can identify a = 1, b = 25, and c = 136.
Substituting these values in the quadratic formula, we get:
x = (-25 ± √(25² - 4(1)(136))) / 2(1)
x = (-25 ± √(625 - 544)) / 2
x = (-25 ± √(81)) / 2
imply them
x = (-25 + 9) / 2 or x = (-25 - 9) / 2
x = -8 or x = -17
Therefore, the solutions to the quadratic equation x^2 + 25x + 136 = 0 are x = -8 and x = -17.
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