Answer:
A
Step-by-step explanation:
For any given point on a parabola,
(x,y)
If we know the axis of symmetry x=a.
We can find the other point
If the given point x value is less than the axis of symmetry
(x+2a,y)
if the given point y value is greater than axis of symmetry
(x-2a,y)
Here, since 0<3, we use the first formula to find the new point
(0+2(3),-5)=(6,-5)
So the point is A.
Use the Distributive Property to figure out (z-5)(z+3)
whats the answer
Using the distributive property, we can write (z-5)(z+3) is equal to [tex]z^2[/tex] - 2z - 15.
Let us expand the expression (z-5)(z+3).
We will distribute the terms in the first set of parentheses (z-5) to the terms in the second set of parentheses (z+3) as follows -
(z-5)(z+3) = z(z+3) - 5(z+3)
Now, we will simplify the expression by distributing z to both terms inside the first set of parentheses, and then distributing -5 to both terms inside the second set of parentheses as follows -
z(z+3) - 5(z+3) = [tex]z^2[/tex] + 3z - 5z - 15
Combining the like terms, we get,
(z-5) (z+3) = [tex]z^2[/tex] - 2z - 15
Therefore, (z-5)(z+3) is equal to [tex]z^2[/tex] - 2z - 15.
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acrylamide, a possible cancer-causing substance, forms in high-carbohydrate foods cooked at high temperatures. acrylamide levels can vary widely even within the same type of food. an article appearing in a certain journal included the following acrylamide content (in nanograms/gram) for five brands of biscuits. 344 294 333 276 248 (a) calculate the mean acrylamide level (in nanograms/gram). nanograms/gram
An article appearing in a certain journal included the following acrylamide content for five brands of biscuits. 344 , 294, 333, 276, 248. The mean acrylamide level (in nanograms/gram) is 299.
In statistics, the mean is a measure of central tendency that represents the sum of all values in a dataset divided by the total number of values. It is commonly referred to as the average.
To calculate the mean, all the data values are added together, and then this sum is divided by the number of data points in the dataset. The formula for calculating the mean is:
mean = (sum of values) / (number of values)
To calculate the mean acrylamide level, we need to add up all the acrylamide levels for the five brands of biscuits and divide the sum by the total number of brands.
Sum of acrylamide levels = 344 + 294 + 333 + 276 + 248 = 1495
Total number of brands = 5
Mean acrylamide level = (Sum of acrylamide levels) / (Total number of brands) = 1495 / 5 = 299
Therefore, the mean acrylamide level is 299 nanograms/gram.
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tom and saam are speed skaters. tom skates 44 ft/sec, and saam 50ft/sec. if saam is 120 ft behind tom when they are skating in the same direction, how long will it take saam to catch up to tom?
They are skating in the same direction, how long will it take Sam to catch up to tom
will take Sam 2.72 seconds to catch up to Tom.
Average speed is defined as the ratio of the total distance traveled by a body to the total time taken for the body to reach its destination.
To find out how long it will take Sam to catch up to Tom, we can use the following formula:
time = distance / (rate of Sam- the rate of Tom)
In this case, the distance is 120 ft (the distance between Tom and Sam when they start speed skating) and rate of Sam is 50 ft/sec, and the rate of Tom is 44 ft/sec.
Plugging these values into the formula, we get:
time = 120 / (50 - 44) = 120 / 6 = 20
So it will take Sam 20 seconds to catch up to Tom.
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your friend says that he will be 21 years old and seven years how old is he now?
Answer:
Step-by-step explanation:
He is now 14 years old because if you minus 21 and 7, it will be 14
Answer:
If your friend says that he will be 21 years old in seven years, then he is currently 21 - 7 = 14 years old.
Step-by-step explanation:
Tyler collects 1242 cans of pet food. He gives 150 cans to the vet. Then he packs 9 cans in each box to give to the animal shelter. How many cans of pet food are not in a box?
Answer:
121
Step-by-step explanation:
1242-150=1092/9 = 121 (remainder 3)
Answer: 121
Step-by-step explanation: 1241 - 150 / 9
Two large charged plates of charge density ±30�C/m2±30μC/m 2 face each other at a separation of 5.0 mm. (a) Find the electric potential everywhere. (b) An electron is released from rest at the negative plate; with what speed will it strike the positive plate?
(a) Potential on the opposite sides of the positive and negative plates is 8475 V and -8475 V, respectively. (b). 772 m/s is the speed at which the positive plate will be struck.
What is the word for speed in science?A more technical or sophisticated phrase, velocity, is occasionally used interchangeably with speed to refer to extremely high rates of linear or circular speed, such as the velocity of a bullet.
a). Positivplate should be on the right and negativeplate should be on the left.
Potential equals zero at the center of the plates.
Electric field between it plates: 30e⁻⁶/8.85e⁻¹² (338 V/m) = sigma/e0
Potential is equal to 3389830x, where x is the distance in meters from the center of the plates.
Where x is the distance in meters from the center of the plates, the potential to the left of either the middle point equals -3389830x.
Potential outside of the positive plate is equal to 3389830*0.005/2, or 8475 V.
The potential is -8475 V on the contrary side of the negative plate.
Potential between it plates is equal to -8474 + 3389830x, where x is the distance in meters from the negative plates.
b). Electron energy at the positive plate is equal to [8475 - -8475]. eV = 2*8475*1.6e⁻¹⁹ = 2.712*10⁻¹⁵ J
Speed = sqrt(2E/m) = sqrt(2*2.712e-15/9.1e⁻³¹) = 772 meters per second.
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how many sides does a polygon have if the sum of the interior angles is 3960
A polygon with a sum of interior angles of 3960 has 22 sides.
The sum of the interior angles of a polygon can be calculated using the formula:
(n-2) * 180
where n is the number of sides of the polygon. This formula is derived from the fact that the total degree measure of a polygon is equal to the sum of the degree measures of its interior angles. In a polygon with n sides, there are n angles, each measuring 180 degrees. So the total degree measure of a polygon with n sides is n * 180.
Now, if we subtract the degree measures of two angles, we are left with the sum of the degree measures of the remaining n-2 angles. This is why the formula for the sum of the interior angles of a polygon is given as (n-2) * 180.
To find the number of sides of a polygon given its sum of interior angles, we can rearrange the formula as follows:
n = (Sum of interior angles / 180) + 2
So, if the sum of the interior angles is given as 3960, we can plug that into the formula:
n = (3960 / 180) + 2
n = 22
Therefore, a polygon with a sum of interior angles of 3960 has 22 sides.
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How many sides does a polygon have if the sum of the interior angles is 3960?
Julius went fishing on Saturday morning. He took a cooler to store the fish that he caught. The cooler could hold less than 8 large fish. Write an inequality that represents how many fish the cooler could hold.
8 > f
8 < f
8 ≥ f
8 ≤ f
Answer:
8 < f
8 must be strictly lesser than f, not greater than or equals to.
ason has 4 feet of ribbon. He uses 1/3 foot of ribbon to wrap a gift. How many gifts can Jason wrap with the ribbon he has?
answer choices
1/3
1/12
4
12
The number of gifts ason can wrap with the ribbon he has is 12.
Conversions :A quantity that is multiplied or divided between one set of units and another is termed as a conversion factor. If a conversion is required, it must be carried out with the right conversion factor to generate a value that is identical.
To change a value or expression from one form to another.
Now in the given question,
ason wraps a gift using one third of a foot of ribbon.
he has total ribbon of 4 feet.
so, we have the equation,
[tex]\frac{1}{3} x=4\\\\x=12[/tex].
hence, 12 gifts can be wrapped with the ribbon ason has.
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If the two quantities on a coordinate graph are time and distance from home which quantity is a function of which?
The distance is a function of time and the slope of the distance time graph will give the speed
What is a function rule?The function rule is the relationship between the input or domain and the output or range. A relation is a function if and only if there exists one value in the range for every domain value.
A function is a relation from a set of inputs to a set of possible outputs where each input is related to exactly one output.
Given data ,
Let the first quantity be represented as Distance D
Let the second quantity be represented as Time T
Now , the function is given as
The distance D is a function of time and the slope of the line between the x and y axis of the distance time graph will give us the speed
Substituting the values in the equation , we get
Let the y axis represent the distance D
And , let the x axis represent the time T
So , Slope m = y / x
On simplifying the equation , we get
Slope m = Distance / Time = Speed
Hence , the distance is a function of time
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b. Isabella has a second tray that has a length of 5/3 inches and a width of 13/4 inches
and a height of 5/2 inches. What is the volume of the second tray?
Answer: approx 13.54 (full decimal : 13.416666667)
Step-by-step explanation:
Area = Base Area x Height OR Length x Width x Height
5/3 x 13/4 x 5/2
5 x 13 x 5 = 325
3 x 4 x 2 = 24
325/24 = approx 13.54
as a part of a market research project, you survey six food trucks across the city to gather data on how many meals they would plan to sale at various prices. the data you collect is in the accompanying table. what is the change in the total supply of meals in your survey when the price falls from $7 per meal to $6 per meal?
Option (a) The quantity supplied rises by 165. To determine the change in the total supply of meals in your survey when the price increases from $8 per meal to $9 per meal, we need to compare the quantity of meals supplied at the $8 and $9 prices across all food trucks.
From the table, we can see that the quantity of meals supplied at the $8 price per meal is as follows:
Mario's Taco Stand: 140
Curbside Chargrilled Burgers: 210
Chuckin' Clouds BBQ: 175
Burrito Dan's: 240
La Jefa Cubanos: 150
What a Jrk Jamaican Food: 220
The total quantity supplied at $8 per meal is 1,135 meals.
At the $9 price per meal, the quantity of meals supplied is as follows:
Mario's Taco Stand: 160
Curbside Chargrilled Burgers: 240
Chuckin' Clouds BBQ: 200
Burrito Dan's: 260
La Jefa Cubanos: 190
What a Jrk Jamaican Food: 250
The total quantity supplied at $9 per meal is 1,300 meals.
The change in the total supply of meals is the difference between the total quantity supplied at $9 per meal and the total quantity supplied at $8 per meal, which is:
1,300 - 1,135 = 165
Therefore, the answer is (a) The quantity supplied rises by 165.
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Complete question is in the image
Let ∠1 , ∠2 , ∠3 , and ∠4 have the following relationships. ∠1 and ∠2 are vertical angles. ∠3 and ∠4 are right vertical angles. ∠3 is adjacent to both ∠1 and ∠2 . What is the sum of the measure of ∠4 and the measure of ∠1 minus the measure of ∠2 ?
Answer:
Since ∠1 and ∠2 are vertical angles, they have equal measure. And since ∠3 and ∠4 are right vertical angles, they have measure 90° each.
Since ∠3 is adjacent to both ∠1 and ∠2, we can say that:
∠1 + ∠3 = 180°
∠2 + ∠3 = 180°
Adding these two equations together:
∠1 + ∠2 + 2∠3 = 360°
Substituting the values we have:
∠1 + ∠2 + 2(90°) = 360°
∠1 + ∠2 + 180° = 360°
Solving for ∠1 + ∠2:
∠1 + ∠2 = 180° - 180° = 0°
Finally, the sum of the measure of ∠4 and the measure of ∠1 minus the measure of ∠2 is:
∠4 + (∠1 - ∠2) = 90° + (∠1 - 0°) = 90° + ∠1
So the answer is 90° + ∠1.
i need help with this one?
Answer: No, because not all of the corresponding sides are proportional
Step-by-step explanation:
If you set up ratios for corresponding sides, you will see they all evaluate to different numerical results. This means that the sides are not in a fixed ratio, which leads us to conclude the the shapes are not scalar multiples of each other. Two of those angles are congruent though!
someone please answer 6,7, and 8 for 15 points quickly
Using the concept of proportions, the first rate does not form a proportion while the second rate form a proportion and the the cost of 9 pizza is $152.55
What is ProportionsProportion is a mathematical concept that refers to the relationship between two values or sets of values. It expresses the relative sizes of two or more quantities and can be represented as a fraction, decimal, or percentage.
6.
16 players for 24 teams
20 players for 32 teams
Let's find the ratio of player to team if they're consistent.
16 / 24 = 2/3 ≠ 20 / 32 = 5/8
The rates do not form a proportion.
7.
10 inches in 6 hours
80 inches in 2 days
10 / 6 = 5/3 = 80 / 48 = 5/3
The rates form a proportion.
8.
4 pizza = 67.80
9 pizza = x
Cross multiply both sides
4x = 67.80 * 9
4x = 610.2
x = 610.2 / 4
x = 152.55
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There are total of 452 cows and goats in a farm. 5/7 of
the cows are equal to 13/27 of the goats in the farm.
Find the total number of legs of cows.
The total number of cows is given by the equation c = 182 cows and the total number of legs of cows is n = 728 legs
What is an Equation?Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let the equation be represented as A
Now , the value of A is
Substituting the values in the equation , we get
The total number of cows and goats = 452
So , c + g = 452 be equation (1)
And , ( 5/7 )c = ( 13/27 )g
On simplifying the equation , we get
c = ( 13 x 7 ) / ( 5 x 27 ) g
c = ( 91/135 )g be equation (2)
Substituting the value of c in equation (1) , we get
( 91 / 135 ) g + g = 452
On further simplification , we get
( 91 + 135 ) / 135 g = 452
( 226 / 135 ) g = 452
Divide by 226 on both sides of the equation , we get
( 1/135 )g = 2
Multiply by 135 on both sides of the equation , we get
g = 270 goats
Now , the number of cows = 452 - 270 = 182 cows
The number of legs = 182 x 4 = 728 legs
Hence , the number of cows is 182 cows
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please help im kinda failing in math
Answer:
Step-by-step explanation:
c
a
Write an inequality.
You need to buy several pencils and an eraser. You can spend no more than $7. The eraser costs $.75 and
pencils cost $.25.
Answer: .75 + .25x ≤ 7
Step-by-step explanation: The x equals the amount that you can buy for each item.
The ratio of the sides of a triangle are 3:5:12. If the perimeter of the triangle is 100 units, determine the length of the shortest side.
The measure of the length of the shortest side will be 15 units.
What is a ratio?If b is not equal to 0, an ordered pair of numbers a and b, denoted as a / b, is a ratio. How frequently one value contains or is contained within another is shown by the numerical connection between the two values.
Given that the perimeter of the triangle is 100 and the ratio of the sides of the triangle is 3:5:12.
The length of the shortest side will be calculated as:-
3x + 5x + 12x = 100
20x = 100
x = 20
Length = 3x
Length = 3 x 5 = 15 units
Hence, the shortest side will be 15 units.
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not yet answered points out of 5.00 not flaggedflag question question text what is the radius of a right circular cylinder with a volume of 12 in3 if it has a minimum surface area?
The height of the cylinder is 18 cm and its volume is 450π cubic centimeters, given that the radius of its base is 5 cm and its total surface area is 165πcm².
A right circular cylinder is a three-dimensional geometric shape with a circular base and a curved surface that extends upward in a cylindrical fashion.
Let's begin by identifying the formula for the total surface area of a cylinder. It is given by:
Total surface area = 2πr(h + r)
Where r is the radius of the base, h is the height, and π is a mathematical constant (approximately 3.14). We are given that the total surface area of the cylinder is 165πcm², and the radius of its base is 5 cm. Substituting these values in the formula, we get:
165π = 2π(5 + h)5 + 2π(5)²
Simplifying this equation, we get:
165π = 10πh + 150π
Dividing both sides by 10π, we get:
h + 15 = 33
Therefore, the height of the cylinder is 18 cm (33 - 15).
Now, let's find the volume of the cylinder. The volume of a cylinder is given by:
Volume = πr²h
Substituting the values of r and h, we get:
Volume = π(5)²(18)
Simplifying this equation, we get:
Volume = 450π
Therefore, the volume of the cylinder is 450π cubic centimeters.
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Complete Question:
The total surface area of a right circular cylinder is 165πcm². If the radius of its base is 5 cm; find its height and volume.
If you invest $360.00 and your annual interest rate is $54, what is the interest rate
Answer: 15%
Step-by-step explanation:
54 divided by 360 = 0.15%
On a hike, William passed a sign that said his elevation was 20 1/2 feet
above sea level. He hiked downhill for a while longer until his elevation had
decreased by 28 feet. What is his new elevation?
Answer:
-7.5 OR -7 1/2
Step-by-step explanation:
20.5 - 28 = -7.5
OR
20 1/2 - 28 = -7 1/2
why is your answer to part (a) approximately correct even though the population distribution of diameters is clearly not normal? would the same approach be equally valid for a sample of size 2 rather than 25? why or why not?
In part (a), we used the Central Limit Theorem (CLT) to approximate the sampling distribution of the sample mean. The CLT states that, under certain conditions, the sampling distribution of the sample mean will be approximately normal, regardless of the population distribution.
The conditions for the CLT are:
The sample is randomly drawn from the population.
The sample size is large (usually, n >= 30 is considered large enough).
The samples are independent.
In this case, we assume that the sample was randomly drawn from the population of diameters, and the sample size of 25 is large enough to satisfy the second condition. The samples are assumed to be independent, as we are sampling without replacement from a large population.
Therefore, we can apply the CLT and use the normal distribution to approximate the sampling distribution of the sample mean.
For a sample of size 2, the sample mean will still have a sampling distribution, but the CLT may not be applicable. If the population distribution is highly skewed or has heavy tails, a sample size of 2 may not be sufficient to smooth out the sampling distribution, and it may not be normal.
In this case, a normal approximation may not be appropriate, and other methods, such as bootstrapping or permutation tests, may be more appropriate for inference.
In summary, the normal approximation based on the CLT is valid for large sample sizes, regardless of the population distribution. For small sample sizes, other methods may be more appropriate, and the normal approximation may not be valid if the population distribution is highly skewed or has heavy tails.
Question: The basal diameter of a sea anemone is an indicator of its age. The density curve shown here represents the distribution of diameters in a certain large population of anemones; the population mean diameter is 4.2cm, and the standard deviation is 1.4cm.
Let Y dash represent the mean diameter of 25 anemones randomly chosen from the population.
(a) Find the approximate value of Pr{4 ≤ Ydash ≤ 5}.
(b) Why is your answer to part (a) approximately correct even though the population distribution of diameters is clearly not normal? Would the same approach be equally valid for a sample of size 2 rather than 25?Why or why not?
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a department store gets an average of 16 calls in a 2 hour time period. what is the probability that the department store will get at most 3 calls in a 55 minute period? round the final answer to three decimal places.
The probability that the department store will get at most 3 calls in a 55 minute period is 0.066
The Poisson distribution is a discrete probability function that means the variable can only take specific values in a given list of numbers, probably infinite. A Poisson distribution measures how many times an event is likely to occur within “x” period of time.
It is given that a department store gets an average of 16 calls in a 2 hour or 161055 = 223 calls per minute
Find the probability by Poisson distribution with parameter
λ = 223
P(X = x) = λˣе - λx!
P(X ≤ 3) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3)
= (223)⁰е - 223(0!) +(223)¹е - 223(1!) +(223)²е - 223(2!) +(223)³е - 223(3!)
= 0.0006 + 0.004 + 0.018 + 0.043
P(X ≤ 3) ≈ 0.066
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Find the value of z such that 0. 14 of the area lies to the left of z. Round your answer to two decimal places.
The value of z is -1.09.
The Z-score quantifies the discrepancy between a given value and the standard deviation. The Z-score, also known as the standard score, indicates how many standard deviations a specific data point deviates from the mean. In essence, standard deviation represents the degree of variability present in a given data collection.
Given: P(Z<z)=0.14
To find the value of z such that 0.14 of the area lies to the left of z.
We will use z-score table to get the value of z here.
IN z-score table, we have
For P(Z<-1.09)=0.14
Hence, the value of z is -1.09.
Its approximate value is -1.09
So the final answer is z=-1.09.
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Find the sine of Z.
7
X
√26
Z
√21
Y
The sine of Z is 0.834.
How to calculate sine of an angle?Assume that "α" is the angle in a right triangle XYZ. The sine formula is then given as Sin = Opposite side/ Hypotenuse.
Using the Pythagorean theorem, we can find the length of side Y:
Y² = X² + Z²
Y² = 7² + ( √(21) )²
Y² = 49 + 21
Y² = 70
Y = √(70)
Now we can use the definition of sine:
sin(Z) = opposite/hypotenuse
sin(Z) = X / Y
sin(Z) = 7 / √(70)
sin(Z) = (7 / 10) √(70)
So the sine of Z is (7 / 10) √(70), or approximately 0.834.
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what are the multiplicative inverses of the other elements (you may want to use trial and error for finding the inverses)?
To find the multiplicative inverse of an element in a set, we need to find another element in the set that, when multiplied by the first element, gives the multiplicative identity element. All elements in the set have a multiplicative inverse except for 0.
To find the multiplicative inverse of an element in a set, we need to find another element in the set that, when multiplied by the first element, gives the multiplicative identity element (usually 1).
For example, in the set {1, 2, 3, 4, 5} under multiplication modulo 6, we have:
The multiplicative inverse of 1 is 1 (1 x 1 = 1 mod 6).
The multiplicative inverse of 2 is 4 (2 x 4 = 8 = 1 mod 6).
The multiplicative inverse of 3 is 5 (3 x 5 = 15 = 3 x 1 = 1 mod 6).
The multiplicative inverse of 4 is 2 (4 x 2 = 8 = 2 x 4 = 1 mod 6).
The multiplicative inverse of 5 is 3 (5 x 3 = 15 = 3 x 5 = 1 mod 6).
Note that every element in the set has a multiplicative inverse except for 0. This is because any number multiplied by 0 is 0, not 1.
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which statement about 4 √2x+4 √x+3=0 is true?
The statement that is true is: The equation 4 √2x + 4 √x + 3 = 0 has one solution, which is x = -1/2.
How to find the equation that is true?To determine which statement about 4 √2x + 4 √x + 3 = 0 is true, we need to solve the equation.
However, it is not possible to solve the equation exactly because it contains square roots. We can simplify the equation by multiplying both sides by the conjugates of the square roots, which eliminates the square roots.
Multiplying both sides by (2x + x + 3) / (2x + x + 3), we get:
(4 √2x + 4 √x + 3) * (2x + x + 3) / (2x + x + 3) = 0 * (2x + x + 3) / (2x + x + 3)
Expanding the left-hand side, we get:
12x + 6 = 0
Solving for x, we get:
x = -1/2
So, the statement that is true is: The equation 4 √2x + 4 √x + 3 = 0 has one solution, which is x = -1/2.
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Increase 600 by 9% equal too?
Answer:
654
Step-by-step explanation:
An increase of 9% would mean 1.09 times 600 which equals 654
Solve this(the best answer and explanation gets brainliest)
Answer: 5/12
Step-by-step explanation:
- For the ease of the problem, turn them into improper fractions, so it would be:
13/3 divided by 14/5 divided by 26/7
- Next, let's turn the equation from division to multiplication. This can be done by flipping the fractions of everything being divided, so:
13/3 times 5/14 times 7/26
- We can cross out some parts of the fraction, like 13 and 26, 14 and 7, which simplifies our equation to:
1/3 times 5/2 times 1/2 = 5/12
Answer:
[tex]\dfrac{5}{12}[/tex]
Step-by-step explanation:
Given equation:
[tex]4 \frac{1}{3} \div 2 \frac{4}{5} \div 3 \frac{5}{7}[/tex]
Convert the mixed numbers into improper fractions:
[tex]\dfrac{4 \times 3+1}{3} \div \dfrac{2 \times 5+4}{5} \div \dfrac{3 \times 7+5}{7}[/tex]
[tex]\dfrac{13}{3} \div \dfrac{14}{5} \div \dfrac{26}{7}[/tex]
[tex]\textsf{Apply the fraction rule:} \quad \dfrac{a}{c}\div\dfrac{b}{d}=\dfrac{a}{c}\times \dfrac{d}{b}[/tex]
[tex]\dfrac{13}{3} \times \dfrac{5}{14} \times \dfrac{7}{26}[/tex]
Multiply the fractions:
[tex]\dfrac{13\times5\times7}{3 \times14 \times 26}[/tex]
[tex]\dfrac{455}{1092}[/tex]
The greatest common factor of 455 and 1092 is 91.
Therefore, divide the numerator and denominator by the GCF:
[tex]\dfrac{455 \div 91}{1092\div 91}=\dfrac{5}{12}[/tex]
