Answer:
they arent
Step-by-step explanation:
angles are different
2) у-зу у сту=0 act-4) cosnt -4
the solution to the equation is y =
\(\[\frac{2(const + 1)}{ст - з + 1}\].\)
`2у - зу у + сту = 0 act - 4const - 4`.
To solve the given equation, Take the common factor as
у2у(1 - з + ст) = 4(const + 1)
Rearrange the terms
2у(ст - з + 1) = 4(const + 1)
Divide both sides by
2y(ст - з + 1) = 2(const + 1)
Therefore, the solution is y
=\(\[\frac{2(const + 1)}{ст - з + 1}\].\)
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The slope between points A and B is . The slope between points B and C is . Antoine says all three of these points are on the same line.
Which statement is true?
A. Antoine is correct because both slopes are equal to .
B. Antoine is incorrect because the slope of a line is always greater than 1.
C. Antoine is incorrect because the slope is the same between any two points on a line.
D. Antoine is correct because the slope is not the same between any two points on a line.
Answer:
Antonio is correct because the slope is not the same between any two points on the line
an offshore oil well is 5 kilometers off the coast. the refinery is 6 kilometers down the coast. laying pipe in the ocean is twice as expensive as on land. how many kilometers down the coast should the pipe be laid in order to minimize the cost?
An offshore oil well is 5 kilometers off the coast. The refinery is 6 kilometers down the coast. Laying pipe in the ocean is twice as expensive as on land. Kilometers down the coast should the pipe be laid in order to minimize the cost, the pipe should be laid approximately 8.62 km down the coast to minimize the cost.
How do we minimize the cost?Let the distance down the coast where the pipe is laid be x. Therefore, the distance from the refinery to the point where the pipe meets the shore will be (x + 5) km. The total distance of the pipe can be found using the Pythagorean Theorem.\(D = \sqrt{((x + 5)^2 + 6^2) } = \sqrt{(x^2+ 10x + 61)}\) km
Let C(x) be the cost of laying the pipe down the coast at a distance x. Then
\(C(x) = 2[(x + 5) + 6] + 1.5\)\(D= 2(x + 11) + 1.5\sqrt{(x^2 + 10x + 61)}\)Now, to minimize the cost, we have to find the value of x that minimizes C(x). The first derivative of C(x) is:\(C'(x) = 2 + 1.5 [x^2 + 10x + 61]^{-1/2} [2x + 10]\) After simplifying,\(C'(x) = [2(x^2 + 10x + 61) + 1.5(2x + 10)] [x^2 + 10x + 61]^{-1/2}= (3x^2 + 23x + 82) [x^2 + 10x + 61]^{-1/2}= 0\) (at a minimum point)
Now we can solve for x using the above equation.\((3x^2 + 23x + 82) = 0\) ⇒ \(3(x^2 + 7.67x + 27.33) = 0\) Using the quadratic formula; x = {-b ± √(b² - 4ac)}/2 a We get, x = {-23 ± √(23² - 4(3)(82))}/2(3)x = {-23 ± √(529 - 984)}/6x = {-23 ± √(-455)}/6x = -3.03 or -8.62 Since x must be positive, x = -3.03 is not possible. Hence, the distance down the coast where the pipe should be laid in order to minimize the cost is :x = -8.62Therefore, the pipe should be laid approximately 8.62 km down the coast to minimize the cost.
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what is the circumference of a circle with a diameter of 4.1 cm ?
use 3.14 for pi.
Answer:
12.874cm
Step-by-step explanation:
given
r=d/2=4.1cm/2=2.05cm
c=2πr
c=2×3.14×2.05cm
c=2×3.14×2.05cm
c=6.28×2.05cm
c=12.874cm
Brian irons \dfrac29
9
2
start fraction, 2, divided by, 9, end fraction of his shirt in 3\dfrac353
5
3
3, start fraction, 3, divided by, 5, end fraction minutes. Brian irons at a constant rate.
The fraction that Brian can iron in a minute is 5/81.
How to calculate the fraction?A fraction is simply a piece of a whole. The number is represented mathematically as a quotient where the numerator and denominator are split. It should be noted that in a simple fraction, the numerator as well as the denominator are both integers. On the other hand, a fraction appears in the numerator or the denominator of a complex fraction.
Here, set up a proportion (shirt ironed/minutes = shirt ironed/minutes). I'll convert 3 3/5 to an improper fraction as well to set it up.
(2/9) / (18/5) = x / 1
Cross multiply
2/9 = (18/5)x
Multiply both sides by 5/81 to solve for x.
x = 10/162
In this case, it should be noted that we can reduce 10/162 to the lowest term. This will be 5/81
The clothes that Brian can iron will be 5/81.
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Complete question
Brian irons 2/9 of his shirt in 3 3/5 minutes. If Brian irons at a constant speed how much of his shirt does he iron in a minute
x-intercept of the line 3x+20y=–12.
Answer:x=-4
Step-by-step explanation
1. Set y as 0. Doing so will help you solve for x
3x +20(0)=-12 aka 3x=-12
2. Divide each sides by 3
3x(divided by three) = -12 (divided by three)
x=-4
(your answer would be negative because a negative divided by a postitive is negative.)
Two out of 8 kittens have white feet. What percentage of the litter had white feet?
Answer:
2 out of 4
Step-by-step explanation:
Answer:
Is 25%
Step-by-step explanation:
2/8=1/4 1/4 as a percent is 25%
A common experiment in organic chemistry labs involvs the dehydration of cyclohexanol (an alcohol) to form cyclohexene. Would infrared spectroscopy help determine if your reaction was successful
Yes, infrared spectroscopy would indeed be helpful in determining,
if the dehydration reaction of cyclohexanol to form cyclohexene was successful in an organic chemistry lab.
Infrared spectroscopy (IR spectroscopy) is a widely used analytical technique in organic chemistry,
That provides information about the functional groups present in a compound.
It measures the absorption of infrared radiation by the sample,
Which corresponds to the vibrations of different chemical bonds in the molecule.
In the case of cyclohexanol and cyclohexene, there is a significant difference in their functional groups.
Cyclohexanol contains an -OH group alcohol, whereas cyclohexene contains a carbon-carbon double bond alkene.
These functional groups have characteristic absorption bands in the IR spectrum.
By comparing the IR spectra of the starting material cyclohexanol and the desired product cyclohexene.
One can determine if the dehydration reaction was successful.
The presence or absence of characteristic absorption bands for the alcohol (-OH) and the alkene (C=C).
In the product spectrum can provide evidence of the reaction's success.
If the desired cyclohexene is formed, the absorption band corresponding to the -OH group should disappear,
Indicating the removal of the alcohol functionality.
Additionally, a new absorption band corresponding to the C=C bond should appear in the product spectrum.
Therefore, IR spectroscopy can be a valuable tool in confirming the success of the dehydration reaction and characterizing the functional groups present in the resulting product.
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Find the measure of the missing angles.
X =
y =
y
40°
The angle 'z' is 30 degrees. the angle 'y' is 110 degrees. the angle 'y' is 110 degrees.
Describe Angles?An angle is a geometric figure formed by two rays or line segments that share a common endpoint, called the vertex of the angle. The two rays or line segments that form the angle are referred to as the sides of the angle.
The size of an angle is typically measured in degrees, with a full circle comprising 360 degrees. Angles less than 90 degrees are called acute angles, angles that measure exactly 90 degrees are called right angles, angles greater than 90 degrees but less than 180 degrees are called obtuse angles, and angles that measure exactly 180 degrees are called straight angles.
In addition to these basic types of angles, there are several other important concepts related to angles, such as complementary angles (two angles whose sum is 90 degrees), supplementary angles (two angles whose sum is 180 degrees), adjacent angles (two angles that share a common side and vertex), and vertical angles (a pair of angles that are opposite each other and have the same measure).
The sum of internal angles of a triangle is 180 degrees.
Take the triangle ABC.
∠A= (30 + 40)°
= 70°
∠B = 80°
The sum of internal angles of a triangle is 180 degrees.
∠A + ∠B + ∠z°= 180°
∠z° = (∠A + ∠B)
Substitute values in the above expression.
∠z° = 180° - (70° + 80°)
= 180° - 150°
= 30°
Thus, the angle 'z' is 30 degrees.
From triangle ADC,
∠A = 40°
∠C = z°
= 30°
The sum of internal angles of a triangle is 180 degrees.
∠A + z° + y° = 180°
y° = 180° - (∠A + z°)
Substitute values in the above expression.
y° = 180 - (40° + 30°)
= 180° - 70°
= 110°
Thus, the angle 'y' is 110 degrees.
From the given figure, the angle x and y are supplementary angle. That is the sum of angles is 1800.
x° + y° = 180°
x°= 180° - y°
Substitute the values in the above expression.
x° = 180° - 110°
= 70°
Thus, the angle 'x' is 70 degrees.
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The complete question is:
Directions: Find the slo
(-13, 8) and (3, 12)
Answer:
slope =.25
Step-by-step explanation:
I assume this is asking to find the slope?
graph this equation and you'll see that the run is 16 and the rise is 4.
rise/run
4/16 = .25
How do you prove closed under addition?
A closed under addition can be proved if the sum of any two members of the set also belongs to the set.
We can take any two even integers and add them together. The result is an even integer. A set is closed under scalar multiplication if the product of any member and a scalar is also in the set. In other words, if x is in S and a is any scalar then ax will be in the set if the set is closed under scalar multiplication. For example, the set of 2 x 2 diagonal matrices is closed under scalar multiplication.
For example,
A = {( x, y) , y = 0 }
B= { (x, y) , x+ y = 1 }
Typical elements of A are (1,0), (2,0). The element (1,1) is an element not in A. Typical elements of B are (1,0), (1/2,1/2). The element (1,1) is an element not in B. Now A and B carry an addition that is (x, y)+(x', y')=(x + y, x' + y')). Saying that A is closed under addition just means that whenever you take two elements in A, the sum of those elements is again in A. Let's check if this is the case: two elements in A have the form (x, 0) and (x', 0). The sum of those elements is (x + x', 0), and this is again in A. Thus A is closed under addition.
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Parametrize the contour consisting of the perimeter of the square w square with vertices- the length of this i, 1 + i, and-1 + i traversed once in that order. What is t contour?
The square with vertices at i, 1+i, -1+i, and -i can be parametrized as follows:
Starting from the vertex at i, we can move along the edges of the square in a counterclockwise direction. Let's call this parameterization as r(t), where t ranges from 0 to 4.
For 0 ≤ t < 1, we move from i to 1+i along the line segment joining these points:
r(t) = i + t(1+i - i) = i + ti
For 1 ≤ t < 2, we move from 1+i to -1+i along the line segment joining these points:
r(t) = (1+i) + (t-1)(-2i) = -t + 2 + i
For 2 ≤ t < 3, we move from -1+i to -i along the line segment joining these points:
r(t) = (-1+i) + (t-2)(-1-i + 1-i) = -1 + (3-t)i
For 3 ≤ t < 4, we move from -i to i along the line segment joining these points:
r(t) = (-i) + (t-3)(i + 1+i) = (t-2)i
Therefore, the parameterization of the contour is:
r(t) = { i + ti for 0 ≤ t < 1
{ -t + 2 + i for 1 ≤ t < 2
{ -1 + (3-t)i for 2 ≤ t < 3
{ (t-2)i for 3 ≤ t < 4
And the contour C is the set of all points r(t) as t ranges from 0 to 4:
C = {r(t) : 0 ≤ t ≤ 4}
Note that we use the closed interval [0, 4] for the parameter t because we want to traverse the perimeter of the square once in a counterclockwise direction.
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Please check the attached picture, please answer thoroughly!
The selection depends on individual needs, preferences, and the intended use of the tiny house.
a) To find the amount of space inside each house, we need to calculate the volume for each design.
House on the left:
Volume = length x width x height = 2.5 m x 18 m x 2.8 m = 126 m³
Triangular house:
Volume of a triangular prism = (base area x height) / 2
Base area = (1/2) x base x height = (1/2) x 4 m x 10 m = 20 m²
Volume = (20 m² x 7 m) / 2 = 70 m³
b) When comparing the environmental impacts of each house, several factors need to be considered:
Positive impacts:
1. Material usage: Tiny houses use fewer materials, reducing resource consumption and waste generation.
2. Energy efficiency: Smaller living spaces require less energy for heating, cooling, and lighting, leading to lower energy consumption.
3. Land utilization: Tiny houses can be built on smaller plots of land, preserving green spaces and reducing urban sprawl.
Negative impacts:
1. Construction materials: Although tiny houses use less material overall, the environmental impact depends on the types of materials used. Sustainable and eco-friendly materials should be prioritized.
2. Water and waste management: Adequate provisions for water supply and waste disposal should be implemented to minimize environmental impacts.
3. Transportation: The transportation of tiny houses to their locations can contribute to carbon emissions if not done efficiently.
c) The choice of design for a tiny house depends on personal preferences and priorities. However, considering the provided information:
The house on the left offers a larger interior space of 126 m³, providing more room for living and storage. It may be suitable for individuals or couples who desire more space and functionality within their tiny house.
The triangular house has a smaller interior volume of 70 m³ but offers a unique design and aesthetic appeal. It may be preferred by individuals who prioritize a distinctive architectural style or who are looking for a minimalist and cozy living space.
Ultimately, the selection depends on individual needs, preferences, and the intended use of the tiny house. Factors such as lifestyle, desired amenities, and personal values regarding sustainability and resource conservation should be considered when making the final decision.
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Negative 4,200 divided by 300
Answer:
-14
Step-by-step explanation:
-1/2 ÷ 2(9+3)-4 - 3/4 (8)
,
Answer:
\(-\frac{1}{28}\)
Step-by-step explanation:
-1/2 ÷ 2(9+3)-4 - 3/4(8)
-0.5 ÷ 2(12)-4 - 3/4(8)
-0.5 ÷ 2(12)-4 - 6
-0.5 ÷ 24-4 - 6
-0.5 ÷ 14 = \(-\frac{1}{28}\)
Find the domain and range and describe the level curves for the function f(x,y).
f(x,y) = (-6x^2)/y
The domain of a function is {(x,y) | y ≠ 0}, the range is {z | z ≠ 0} and the level curves y = (-6x^2)/c.
The domain of the function f(x,y) is all real numbers except for y=0, since division by zero is undefined. So the domain is:
{(x,y) | y ≠ 0}
To find the range of the function f(x,y), we can analyze the behavior of the function as y approaches positive or negative infinity. As y approaches infinity, the denominator becomes larger and the fraction approaches 0. As y approaches negative infinity, the fraction approaches negative infinity. Therefore, the range of f(x,y) is all real numbers except 0. In other words, the range is:
{z | z ≠ 0}
The level curves of the function f(x,y) are the curves where the function takes on a constant value. To find the level curves, we set f(x,y) equal to some constant c and solve for y in terms of x:
(-6x^2)/y = c
y = (-6x^2)/c
So the level curves are given by the equation y = (-6x^2)/c, where c is a constant. Notice that as c approaches 0, the level curves become vertical lines at x=0, since y becomes arbitrarily large or small. As c approaches positive or negative infinity, the level curves become horizontal lines at y=0, since the fraction becomes arbitrarily small.
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Draw a line representing the rise and representing the run of the line. State the slope of the line in simplest form.
Sylvia invested $500 in an account compounded annually with an interest rate of 8%. manuel invested $600 in an account with a compound interest rate of 7.25%. using the rule of 72, startfraction 72 over t endfraction, who will double their money first?
a. sylvia will double her money first, in approximately 9 years.
b. manuel will double his money first, in approximately 10 years.
c. manuel will double his money first, in approximately 9 years.
d. sylvia will double her money first, in approximately 10 years.
Using the rule of 72, startfraction 72 over t endfraction, Manuel will double his money first, in approximately 9 years. Option C is the answer.
The rule of 72The rule of 72 is a quick and simple way to estimate the number of years it takes for an investment to double given the
interest rate. It is calculated by dividing 72 by the interest rate.
For example, if an investment has an interest rate of 8%, it will take approximately 72 / 8 = 9 years to double the investment.
Applying this rule, we can estimate the time it will take for Sylvia's investment to double: 72 / 8 = 9 years.
And for Manuel's investment to double: 72 / 7.25 = 10 years.
Since Manuel's investment will double in approximately 9 years, he will double his money first.
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which kind of triangle is shown
Answer:
Right Scalene Triangle
Step-by-step explanation:
4 3/4 ÷ 3=
Please help
Answer:
1.58 is the answer
Step-by-step explanation:
Answer:
19/12 or 1 7/12
evaluate the function f ( -2) = − 3 ^2
Answer:
f ( -2) = − 3 ^245fsaf
Step-by-step explanation:
f ( -2) = − 3 ^2wqs
f(-2)= -3^2
f(-2) = -3 × (-3)
f(-2) = 9
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The table shows today's numbers of sales of-four types of flowers at a flower shop.
Based on this information, which prediction about tomorrow's flower sales is
most reasonable?
A. The shop will sell twice as many roses as daisies
B. The shop will sell equal number of roses and Lilly’s
C. The shop will sell more lilies than any other type of flower
D. The shop will sell six more lilies than roses
Please explain how you got the answer if not it’s okay but a brief summary please
Answer:
A. The shop will sell twice as many roses as daisies
Step-by-step explanation:
Look at each choice and use today's numbers.
A. roses: 18; daisies 9
18 is twice 9.
True
B. roses: 18; lilies: 12
18 and 12 are certainly not equal.
False
C. Lilies: 12, but roses 18
It's more roses than any other.
False
D. Lilies: 12; roses: 18
It's 6 more roses than lilies, not the other way around.
False
Someone please solve this
Answer:
45° ; 27 students
Step-by-step explanation:
Which ONE of the following is the correct way to write a confidence interval? In the answer choices below, L represents the lower bound of the confidence interval and U represents the upper bound of the confidence interval. O [LU] O [LU) O (UL) O (UL) O (LU) O (UL) O (UL) O (LU) O (UL) O (LU)
The correct way to write a confidence interval is an option [LU]
Confidence interval:A confidence interval is typically written as [lower bound, upper bound], where the square brackets indicate that the bounds are included in the interval.
For example, a 95% confidence interval for a population mean might be written as [15.2, 20.8]. This means that we are 95% confident that the true population mean lies between 15.2 and 20.8.
In the answer choices, option (O [LU]) is the correct way to write a confidence interval because it follows this convention of using square brackets to indicate the inclusion of the bounds.
Option (O [LU)) uses a parenthesis for the upper bound, which could be confusing since parentheses typically indicate exclusion.
Options (O (UL)) and (O (UL)) switch the order of the bounds, which would be incorrect since the lower bound should come first.
The other options either use parentheses instead of brackets or reverse the order of the bounds, which are both incorrect.
Therefore,
The correct way to write a confidence interval is an option [LU]
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Two teams need to raise $100 each for their end-of-the-year field trips. Team A wants to sell popcorn at the Spring Fling Carnival, and Team B wants to sell cotton candy. It costs $15 to rent a popcorn machine and it costs $25 to rent a cotton candy maker. The cost of additional supplies for the popcorn is $0.05 per bag. The additional cost for the cotton candy is $0.10 per stick. Team A will sell the bags of popcorn for $0.50 each. Team B will sell the cotton candy for $0.75 per stick.
At what point do both teams earn the same amount of profit? How do you know and
how much profit is earned?
Team A needs to sell 255 bags of popcorn to reach their goal of $100.
What is Algebra?A branch of mathematics known as algebra deals with symbols and the mathematical operations performed on them.
Variables are the name given to these symbols because they lack set values.
In order to determine the values, these symbols are also subjected to various addition, subtraction, multiplication, and division arithmetic operations.
Given:
Team A will sell the bags of popcorn for $0.50 each.
Team B will sell the cotton candy for $0.75 per stick.
Let the number of bags of popcorn sold by Team A be "x".
So, the total cost for the popcorn machine rental and supplies is
= $15 + 0.05x.
To reach their goal of $100
$100 = 0.5x - ($15 + 0.05x)
$100 = 0.5x - $15 - 0.05x
$115 = 0.45x
x = $115 / 0.45
x = 255 bags of popcorn
Thus, Team A needs to sell 255 bags of popcorn.
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I need help on question c and d
Answer:
c. 4^3 * 5^2 (1600)
d. 9^4 * 7^2 (321489)
Step-by-step explanation:
Hi!
Remember that exponents are the number times itself (2*2 = 2^2).
So, in c, we have 4 times 4 times 4. We have 4 multiplied by 4 3 times. We can also write this as 4^3.
We also have 5 times 5. We can also write this as 5^2.
However, we need to multiply 5^2 by 4^3. So:
4^3 times 5^2 or 1600.
d.
Let's group the similar numbers together.
9 x 9 x 9 x 9 and 7 x 7
There are 4 9's, so 9^4.
There are 2 7's, so 7^2
Multiply the 2.
9^4 * 7^2
The solution to an inequality is graphed on the number
line.
What is another way to represent this solution set?
C OF
O {xx <4.5)
O {x| 4.5}
{x | x > 4.5)
O {x|x 2 4.5}
-5
0
1
2
3
4 5
Save and Exit
Next
SUOMI
Mark this and return
From the given number line, we have inequality as {x|x≤4.5}. Therefore, option B is the correct answer.
What are inequalities?Inequalities are the mathematical expressions in which both sides are not equal. In inequality, unlike in equations, we compare two values. The equal sign in between is replaced by less than (or less than or equal to), greater than (or greater than or equal to), or not equal to sign.
Inequalities on a number line allow us to visualize the values that are represented by an inequality. To represent inequalities on a number line we show the range of numbers by drawing a straight line and indicating the end points with either an open circle or a closed circle.
From the given number line, we have inequality as {x|x≤4.5}
Therefore, option B is the correct answer.
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Question 1 (1 point)
At any given time, it is estimated that there are about 10,000,000,000,000,000,000 insects alive. Which of these is an appropriate
estimate for the current number of living insects?
A.1 x 10 to the 19th power
B.1 x 10 to the 20th power
C.1x 10 to the 10th power
D.1x 20 to the 10 power
How many hours and minutes is it from 8:45pm on Monday to 6:35am on Tuesday pls help ASAP for math test welling to give you heck of points
Answer:
it is 9 hours and 50 minutes
Need help asap.
The GDP of a country goes down as people spend more money and businesses make more products.
True or false
Answer:
I'm gonna say false
GDP or Gross Domestic Profit is the money that is being spent/made inside the country. So it stands to reason that if people are spending more, the GDP would go up.
Hope this helps!