The expression expressed as a single fraction is -2y(yx-2)/3x(yx+5)
How to simplify the expression as a single fraction?You should know that simplification involves making an expression look more simpler than it was
The given expression is 2/(x+5/y)÷3/(y-2/x)
First of all let us express the denominator as a single fraction
x+5/y
⇒(yx +5)/y
In the same way express the expression y-2/x = (yx-2)÷x
By substitution we have
(-2)/yx+5)/(y/3)÷(yx-2/x)
⇒(-2y)/(yx+5) ÷ (3x/ (yx -2)
Simplifying this further to get
(-2y)/(yx +5) * (yx -2)/(3x)
⇒-2y(yx-2)/3x(yx +5)
In conclusion, the expression expressed as a single fraction is -2y(yx-2)/3x(yx+5)
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Correct question:
Which expression is equivalent to the following complex fraction? -2/x+5/y/3/y-2/x
Answer:the answer is
Step-by-step explanation:
just did the test
Your friend asks you for help on a geometry exercise. Your friend's paper is shown to the right. What error did your friend make? Explain.
a.Your friend's paper does not name the triangles correctly for them to be congruent.
b. Your friend's paper shows that the SAS Postulate should be used to show congruence because a pair of congruent angles is included between two pairs of congruent sides.
c. The ASA Postulate cannot be used to prove the congruence of the two triangles as shown because the triangles do not have two pairs of congruent angles.
d.
The ASA Postulate cannot be used to prove the congruence of the two triangles as shown because the included sides between the two pairs of congruent angles are not marked as congruent in both triangles.
Two or more shapes are said to be similar if they have common corresponding properties of sides and/ angles. Thus the error made is option D.
Similar shapes are two or more given shapes that have some common properties with respect to their corresponding sides or angles. So that if on comparing each corresponding sides or angles, and are related, then they are similar. Note that similarity does not imply congruency.
Comparing the sides and angles of the given triangles ΔLMN and ΔQRS, it can be seen that;
Angle Side Angle (ASA) similarity relation implies that the included side between two pairs of congruent angles are similar. Thus, the error made in the diagram is explained in option D.
Option D. The ASA Postulate cannot be used to prove the congruence of the two triangles as shown because the included sides between the two pairs of congruent angles are not marked as congruent in both triangles.
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What is the GCF of 4 and 28?
On a map of the Thunderbird Country Club golf course, 1.5 inches equals 45 yards. How long is the 17th hole if the map shows 8.5 inches?
The 17th hole would be 255 yards long.
What are ratio and proportion?
A ratio is an ordered pair of numbers a and b, written a / b where b does not equal 0. A proportion is an equation in which two ratios are set equal to each other.
hole = c yards
1.5 / 40 = 8.5 /c
1.5 * c = 45 * 8.5
1.5 * c = 382.5
c = 255 yards
Hence, the 17th hole would be 255 yards long.
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What is the horizontal asymptote of 4x 7?
The function 4x+7 does not have a horizontal asymptote.
The horizontal asymptote of a function is a horizontal line that the graph of the function approaches as the x-values get larger or smaller.
In this case, the function 4x+7 does not have a horizontal asymptote. This is because the function is a linear function (a function of the form y = mx + b) and all linear functions have a slope (in this case, the slope is 4) but no horizontal asymptotes.
If you are given the graph of a function and you want to find its horizontal asymptotes, you can look at the degree of the function (the highest exponent of the variable). If the degree of the function is less than the degree of the denominator of the function, then the function will have a horizontal asymptote at y = 0.
If the degree of the function is equal to the degree of the denominator, then the function will have a slant asymptote (a line that the graph approaches as the x-values get larger or smaller). If the degree of the function is greater than the degree of the denominator, then the function will not have any horizontal or slant asymptotes.
--The question is incomplete, answering to the question below--
"What is the horizontal asymptote of y = 4x+7?
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How do you find the missing number in a given integer array of 1 to 100 Python?
The idea is to find the sum of integers between 1 and 100 using the n×(n+1)/2 where n is the array’s size and subtract the actual sum of array
What is Python used for?Python is a popular computer programming language used to create software and websites, automate processes, and analyze data. Since Python is a general-purpose language, it may be used to develop a wide range of applications and isn't tailored for any particular issues.
Python code for computing sum
Find the missing number in a given array
def getMissingNumber(arr):
# get the array's length
n = len(arr)
# actual size is `n+1` since a number is missing from the list
m = n + 1
# get a sum of integers between 1 and n+1
total = m * (m + 1) // 2
# the missing number is the difference between the expected sum and
# the actual sum of integers in the list
return total - sum(arr)
if __name__ == '__main__':
array_input = input("Enter a list of integers separated by spaces: ")
array = [int(x) for x in array_input.split()]
print('The missing number is', getMissingNumber(arr))
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Which congruence theorem can be used to prove △ ABC ≅ △ DEC?
The ASA criterion might be the most appropriate, as it states that two triangles are congruent if two angles and the included side are congruent.
To use a congruence criterion in the given situation, you will need to determine which criterion is most appropriate based on the information provided. There are several congruence criteria that can be used to determine whether two triangles are congruent, including the Side-Side-Side (SSS) criterion, the Side-Angle-Side (SAS) criterion, the Angle-Side-Angle (ASA) criterion, and the Angle-Angle-Side (AAS) criterion.
In this case, the ASA criterion might be the most appropriate, as it states that two triangles are congruent if two angles and the included side are congruent. Given that ∠A=∠C=90∘ and AE=CB, you can use the ASA criterion to conclude that triangles AEB and CED are congruent.
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The question is -
Which congruence theorem can be used to prove EB = BD, AE = CB, ∠ A = ∠ C = 90°?
The figure shows a loading dock and a side view of an attached ramp, whose run is 12 feet and whose rise is 39 inches. Alex is wondering whether a long rectangular box can be stored underneath the ramp, as suggested by the dotted lines. The box is 2 feet tall and 5 feet long. Answer Alex’s question.
Answer:
q alguien me explique y pueden ser español
How do you find the probability using the standard normal curve to find the z-score?
Utilize the standard normal curve to calculate probability as follows:
(A) Go to the row that contains the first two digits of your z score.
(B) Go to the column with the third digit of your z-score.
(C) Find the value at the row and column intersection of the previous stages.
What is a standard normal curve?The horizontal axis is approached by the standard normal curve as it stretches continuously in both directions without ever being touched by it.
The center of the bell-shaped, z=0 standard normal curve.
Between z=3 and z=3, almost the entire region under the standard normal curve is located.
Find the z-score of the data value and use a Z-Score Table to find the area under the normal curve in question.
A Z-Score Table is a chart that displays the percentage of values (or area percentage) on a standard normal distribution that is to the left of a specified z-score.
To determine probability, use the ordinary normal distribution.
(A) Go to the row that has your z score's first two digits.
(B) Cross over to the column that has your z score as the third digit.
(C) Find the value at the point where the preceding steps' row and column overlap.
Therefore, utilize the standard normal distribution to calculate probability as follows:
(A) Go to the row that contains the first two digits of your z score.
(B) Go to the column with the third digit of your z-score.
(C) Find the value at the row and column intersection of the previous stages.
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Need help with the last two questions. I can't solve it with using Scientific Notation or Standard Notation. Also I need to be sure it's three significant digits that are included.
Exponents that are positive go to the right. Exponents with negative signs shift to the decimal to the left. A result is stated in scientific notation when it is a power of ten multiplied by a number that is greater than or equal to one but less than ten.
What is the Scientific Notation or Standard Notation?One approach is to fully write out each number after it has been converted from scientific notation, then calculate the total of the two values and translate the result back into scientific notation.
Therefore, The 2, 4, 5, and final 0 in the number 0.2540 are all significant because they come after the decimal point and follow numbers. Scientific notation does not consider exponential digits to be significant; 1.12106 has three significant digits, 1, 1, and 2.
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Trevon and Scott each improved their yards by planting hostas and ornamental grass. They
bought their supplies from the same store. Trevon spent $33 on 5 hostas and 1 bunch of
ornamental grass. Scott spent $42 on 1 hosta and 12 bunches of ornamental grass. What is the
cost of one hosta and the cost of one bunch of ornamental grass?
The required cost of hosta and ornamental grass is $6 and $3.
Simultaneous linear equations are two- or three-variable linear equations that can be solved together to arrive at a common solution.
here,
let the cost of each hosta be x and ornamental grass be y,
According to the question,
For
Trevon,
5x + y = 33 - - - - - (1)
For, Scott,
x + 12y = 42 - - - - - - (2)
Solving equations 1 and 2 by substitution method,
x=6, y=3
Thus, the cost of hosta and ornamental grass is given as $6 and $3.
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How do you factor using the rational root theorem?
We can factor using the rational root theorem by a rational number, both the leading coefficient and the constant term must be divisible by the fraction's denominator.
The rational root theorem, also known as the rational root test, is an algebraic principle that states that for a polynomial equation with one variable and integer coefficients to have a solution (root) that is a rational number, both the leading coefficient and the constant term must be divisible by the fraction's denominator.
A particularly helpful theorem is the theorem of rational roots.
It explains how to get a list of potential solutions for a polynomial function with integer or whole number coefficients by ranking the factors of the constant, or last term, over the factors of the coefficient of the leading term.
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A pink crayon is made with 12\text{ mL}12 mL12, start text, space, m, L, end text of red wax for every 5\text{ mL}5 mL5, start text, space, m, L, end text of white wax.
Which of the following wax mixtures will create the same shade of pink?
Choose 2 answers:
The wax mixtures that will create the same shade of pink are
(D) 36 mL of red mixed with 15 mL of white wax (E) 60 mL of red mixed with 25 mL of white waxHow to determine the wax mixtures that will create the same shade of pink?From the question, we have the following parameters that can be used in our computation:
Red wax = 12 mL
White wax = 5 mL
When these parameters are represented as a ratio, we have the following representation
Ratio = Red wax : White wax
Substitute the known values in the above equation, so, we have the following representation
Red wax : White wax = 12 mL : 5 mL
Remove the units
So, we have
Red wax : White wax = 12 : 5
Multiply the ratio by 3
So, we have
Red wax : White wax = 36 : 15
Multiply the ratio by 5
So, we have
Red wax : White wax = 60 : 25
Hence, the wax mixtures are (d) and (e)
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Complete question
A pink crayon is made with 12 mL of red wax for every 5 mL of white wax. Which of the following wax mixtures will create the same shade of pink?
(A) 10 mL of red wax mixed wit 24 mL of white wax
(B) 48 mL of red mixed with 12 of white wax
(C) 13 mL of red mixed with 6 mL of white wax
(D) 36 mL of red mixed with 15 mL of white wax
(E) 60 mL of red mixed with 25 mL of white wax
2x-48
solve for x
Using the diagram above find the value of x and use it to find the measures of all the missing angles.
Answer:-96
Step-by-step explanation:
What is the formula s2?
A = [tex]s^{2}[/tex] or A = side x side is the formula of [tex]s^{2}[/tex] .
When calculating a square's area, you are determining the size of its surface. You can think of it as counting the number of square units that make up the surface as a whole. The formula for calculating the area of a square is A = [tex]S^{2}[/tex], or A = side x side. They are pretty basic animals, squares.
They have four equal sides and four right angles at their intersections, making them two-dimensional shapes. Four equal sides and four equal angle make up the closed, two-dimensional object known as the square. At the vertices, the square's four sides correspond to its four angles. A square's perimeter is equal to the sum of the lengths of all of its sides, and the amount of space it takes up in total is equal to its area.
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Question :
What is the formula [tex]S^{2}[/tex] of square represents ?
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the text suggests that one key demographic statistic is the percentage of people in a region that are under 15 years of age. why is this statistic important?
Age demography is important that young people are poised to move into their prime reproductive years.
What is Demographic Statistics?Demography is a measure of the characteristics or changes in population. Births, deaths, age , marriages, immigration, and periodic census records provide important information in making informed decisions about national policy.
Governments, businesses, and non-governmental organizations use demographic data to learn about population characteristics for many purposes, including policymaking and economic market research.
Age Demographics: In the demographics, it is defined as common to divide the population into three broad age groups, children and youth (under 15) and working-age population (15-64) and elderly population (Ages 65 and Over)
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What is the inverse formula?
The inverse formula is [tex][(f o f^{-1}) (x) ] =[( f^{-1} o f ) (x)] = x[/tex]
What is the inverse formula?The domain of f is the range of [tex]f^{-1}[/tex] and the range of f is the domain of [tex]f^{-1}[/tex], i.e., if f: A -> B (which is one-one and onto), then [tex]f^{-1}[/tex]: B -> A.If (x, y) is a point on the graph of a function f, then (y, x) will unquestionably be a point on f-1. According to the inverse function formula, f and [tex]f^{-1}[/tex] are only the inverses of one another if their makeup is x.The inverse formula is [tex][(f o f^{-1}) (x) ] =[( f^{-1} o f ) (x)] = x[/tex]A function receives input, applies specific operations on it, and outputs the result. The inverse function performs, operates, and goes back to the original function in agreement with the outcome.The original value that a function output was returned by the inverse function.To learn more about function, refer:
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What is the relationship between the volume of a rectangular prism and a pyramid and between a cylinder and cone?
The relationship between the volume of pyramid and prism is that when a pyramid and prism have the same base and height, volume of prism is 1/3rd the volume of prism.
The volume of the cylinder is 1/3rd the volume of the cone.
The volume of the sphere is 2/3rd the volume of the cylinder with same radius and height equal to the diameter.
Pyramid is said to have a polygonal base and flat triangular faces, which are connected to a common point called apex.
Prism is a combination of flat faces, identical bases and cross-sections being equal.
Cylinder has two parallel bases joined by curved surface through a fixed distance.
Cone has a circular base and a curved surface tapering till the apex.
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What are the coordinates of the midpoint of the line segment with endpoints (-4, 2) and (6,- 8)?
Please explain step by step
Answer:
The coordinate of the midpoint is (\frac{11}{2},\frac{-13}{2} )\\ with endpoints B(9,−8) and C(2,−5)
Step-by-step explanation:
A line passes through the point (1,-6) and (-5, -3)
The equation of the line that passes the points (1, - 6) and (- 5, - 3) is - (1 / 2) · x - 11 / 2.
How to determine the equation of the line that passes through two given pointsAccording to Euclidean geometry, a line can be constructed by setting two points on a plane. By analytical geometry, lines are described by polynomials of the form:
y = m · x + b
Where:
m - Slopeb - Interceptx - Independent variabley - Dependent variableThe slope can be found by means of secant line formula:
m = (y₂ - y₁) / (x₂ - x₁)
If we know that (x₁, y₁) = (1, - 6) and (x₂, y₂) = (- 5, - 3), then the equation of the line is:
m = [- 3 - (- 6)] / (- 5 - 1)
m = 3 / (- 6)
m = - 1 / 2
b = y - m · x
b = - 6 - (- 1 / 2) · 1
b = - 6 + 1 / 2
b = - 11 / 2
The equation of the line is - (1 / 2) · x - 11 / 2.
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What is the mean of 2 3 4 5 6?
The mean of given numbers is 4.
To find: mean of given numbers.
Given data : 2, 3, 4, 5, 6
Average is the arithmetic mean. also called as mean .
Mean is the average of the given numbers and is calculated by dividing the sum of given numbers by the total number of numbers.
Mean=[tex]\frac{Sum of observations}{Number of observations}[/tex]Here, sum of observations =20
Arithmetic mean refers to the average amount in a given group of data. It is defined as the summation of all the observation is the data which is divided by the number of observations in the data
Total number of observations=5
The number of observations provides information on the total number of values that are contained in the Dataset. This property is intended to provide an indication of the size of a Dataset.
Substituting values in above formula,
Mean=[tex]\frac{20}{5}[/tex]=4
Therefore, the mean is 4.
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What should be included in SSS concerns?
"If in two triangles, sides of one triangle are proportionate to (i.e., in the same ratio of) the sides of the other triangle, then their corresponding angles are equal and consequently the two triangles are comparable," asserts the Side-Side-Side (SSS) criteria.
Take a look at the triangles below.
- We can see that all three pairs of the sides of these triangles are congruent. - This is also known as "side-side-side" or "SSS." According to the SSS criteria for triangle congruence, two triangles are congruent if they have three pairs of congruent sides.
SSS Congruence Rule Theorem
When one triangle's three sides are identical to the corresponding three sides of another triangle, two triangles are said to be congruent.
The aforementioned theorem will now be proven.
Given: [tex]\triangle A B C[/tex] and [tex]\triangle P Q R[/tex] such that AB=PQ, BC=QR and AC=PR.
To prove: [tex]\triangle A B C \cong \triangle PQR[/tex]
Construction: Let BC be the longest side of [tex]\triangle A B C[/tex] and so QR is the longest side of [tex]\triangle P Q R.[/tex]
Draw PS so that [tex]\angle R Q S=\angle C B A[/tex] and [tex]\angle Q R S=\angle B C A[/tex].
Join SQ and SR.
In [tex]\triangle ABC[/tex] and [tex]\triangle SQR[/tex],
BC=QR Given
[tex]\angle C B A=\angle R Q S[/tex] By construction
[tex]\angle B C A=\angle Q R S[/tex] By construction
[tex]\triangle A B C \cong \triangle SQR[/tex] By ASA congruence
[tex]\angle A=\angle S[/tex] By CPCTC
AB=SQ By CPCTC
AC=SR
Now, AB=PQ and AB=SQ => PQ=SQ
Similarly, AC=PR and AC=SR => PR=SR
Hence, [tex]\triangle ABC \cong \triangle PQR,[/tex]
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Use point-slope form to write the equation of a line that passes through the point (-1, 10) with slope 11/9
The equation of the line that passes through the given points will be equal to 11x -9y + 101 = 0.
What is the slope?It is possible to determine a line's direction and steepness by looking at its slope. Finding the slope between lines inside a coordinate plane can aid in anticipating if the lines are perpendicular, parallel, or none at all without physically using a compass.
As per the data in the question,
Use the equation of the line passing through the point (x₁, y₁) with slope m will be:
y - y₁ = m(x - x₁)
Slope, m = 11/9
And, the points are (-1, 10)
Now,
y - 10 = 11/9(x + 1)
9y - 90 = 11x + 11
11x - 9y + 11 + 90 = 0
11x -9y + 101 = 0
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What is the inverse of a 2x2 identity matrix?
The inverse of a 2x2 identity matrix is also a 2x2 identity matrix. This is because the identity matrix is its own inverse.
An identity matrix is a square matrix with all primary diagonal members set to one and all other elements set to zero. The letter "In" or just "I" is used to indicate it. Any matrix will produce a given matrix if it is multiplied by the identity matrix. . The components of the provided matrix stay the same.
The 2x2 identity matrix is a square matrix with 1s on the main diagonal and 0s everywhere else. It has the following form:
[1 0]
[0 1]
The inverse of this matrix is also a 2x2 identity matrix with the same form:
[1 0]
[0 1]
Therefore, the inverse of a 2x2 identity matrix is also a 2x2 identity matrix.
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If vertical angles are congruent, then two lines cut by a transversal are parallel.
a. True
b. False
The answer is True. If two vertical angles are congruent, then two lines cut by a transversal will be parallel.
Vertical angles are angles that are opposite each other and share the same vertex. They are congruent angles, meaning that they have the same measure. When two angles are congruent, the sides of the angles are parallel. This means that the two lines cut by a transversal will also be parallel.
The formula for this is that if two angles are congruent, then the lines cut by a transversal are parallel. This is also known as the Angle-Angle-Angle (AAA) Postulate. This postulate states that if two angles of one triangle are congruent to two angles of another triangle, then the two triangles are similar. This means that the lines cut by a transversal are parallel.
In other words, if two angles of a triangle are congruent, then the two sides of the triangle that make those angles are parallel. This is because the two angles are congruent, meaning that they have the same measure. Therefore, if two vertical angles are congruent, then two lines cut by a transversal will be parallel.
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What is the smallest number of paintballs that carolina can buy along with the entrance fee to get the promotion?.
The inequality that represents this scenario is 0.08B >= 57.
To get the promotion, Carolina needs to spend at least $75 on paintballs and the entrance fee. The entrance fee is a fixed cost of $18, so we need to find the number of paintballs that Carolina needs to buy in order to reach a total cost of $75 or more.
The cost of the paintballs is calculated using the formula 0.08B, where B is the number of paintballs that Carolina buys. We can use this formula to write an inequality that represents the scenario described in the problem.
The total cost of the paintballs and the entrance fee is calculated using the formula 0.08B + 18. This formula represents the total cost of the paintballs and the entrance fee for any number of paintballs that Carolina buys.
To find the number of paintballs that Carolina needs to buy in order to reach a total cost of $75 or more, we can set the total cost equal to $75 and solve for B:
0.08B + 18 >= 75
0.08B >= 57
B >= 712.5
The inequality 0.08B >= 57 represents the scenario described in the problem. It states that the number of paintballs that Carolina needs to buy in order to reach a total cost of $75 or more is greater than or equal to 712.5.
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The question is -
Carolina goes to a paintball field that charges an entrance fee of $18 and $0.08 per ball. The field has a promotion that says, "Get $10 off if you spend $75 or more!" Carolina wonders how many paintballs she needs to buy along with the entrance fee to get the promotion, Let B represent the number of paintballs that Carolina buys. What inequality describes this scenario?
the question is in the picture
Answer:
4
Step-by-step explanation:
For each kilogram of mass, [tex]0.2+4(0.1)=0.6[/tex] milligrams are needed.
Thus, [tex]0.6(10)=6[/tex] milligrams are needed.
This is equal to 4 mL
Answer:
4 ml
Step-by-step explanation:
You want to know how many mL of medicine is needed for 5 days when the dose is 0.1 mg/kg per day and the concentration is 1.5 mg/mL. The dose on the first day is double that for the rest of the days.
DaysThe dose on the first day is equivalent to the dose for 2 days, so we can simply add 1 day to the time period: 5 +1 = 6 days of 0.1 mg/kg/day.
DoseThe total amount required will be ...
(0.1 mg/kg/day) × (10 kg) × (6 days) = 6.0 mg
At a concentration of 1.5 mg/mL, the quantity required is ...
(6.0 mg)/(1.5 mg/mL) = 4.0 mL
For 5 days, the dog will need 4.0 mL of medicine.
__
Additional comment
Each day except the first, the dog should receive 2/3 mL of medicine. On the first day, the dog should get 4/3 mL.
) Select all ratios equivalent to 5:4.
30:24
7:2
16:20
Answer: c. 16:20
Step-by-step explanation:
30/5=6
24/4=6
In year 9, there are 150 students.
16% of the students are left handed.
(a) Work out how many students are left handed..
Answer:
24
Step-by-step explanation:
You need to work out 16% of 150
10% of 150 = 15
1% 0f 150 = 1.5
so, 6% of 150 = 1.5 x 6 = 9
16% = 10% + 6%
so, 16% = 15+9
24 = 16%
Therefore there are 24 left handed students in Year 9.
these two triangles are similar. if the base of triangle abc is 3 cm and the base of triangle def is 6 cm, and the perimeter of triangle abc is 11 cm, calculate the perimeter of triangle def
The perimeter of triangle def similar to triangle abc is 22 cm.
What is Perimeter?Perimeter is the total distance around a object.
Note: The ratio of the perimeters of two similar figures is equal to the ratio of their corresponding side lengths.
To calculate the perimeter of triangle def, we use the formula below.
Formula:
B/B' = P/P'.................. Equation 1Where:
B = Base of triangle abcB' = Base of triangle defP = Perimeter of triangle abcP' = Perimeter of triangle defFrom the question,
Given:
B = 3 cmB' = 6 cmP = 11 cmSubstitute these values into equation 1 and solve for P'
3/6 = 11/P'P' = 6×11/3P' = 22 cmHence, the perimeter of triangle def is 22 cm.
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