To solve this problem, we need to use Charles's law, which states that, at constant pressure, the volume of a sample of gas is directly proportional to its temperature.
The law can be expressed mathematically as:
[tex]\boxed{\large\displaystyle\text{$\begin{gathered}\sf \bf{ \frac{V_1}{T_1}=\frac{V_2}{T_2} } \end{gathered}$} }[/tex]
Where:
V₁ is the initial volumeT₁ is the initial temperatureV₂ is the final volumeT₂ is the final temperatureNow we obtain the data to continue solving:
V₁ = 0.5 LT₁ = 220 °CV₂ = ?T₂ = 40 °CNow, we will convert the temperatures to Kelvin:
[tex]\boxed{\large\displaystyle\text{$\begin{gathered}\sf \bf{T_1=220 \ ^{\circ}C+273=493 \ Kelvin} \end{gathered}$} }[/tex]
[tex]\boxed{\large\displaystyle\text{$\begin{gathered}\sf \bf{T_2=40 \ ^{\circ}C+273= 313 \ Kelvin} \end{gathered}$} }[/tex]
Now we solve for V₂:
[tex]\boxed{\large\displaystyle\text{$\begin{gathered}\sf \bf{V_2=\frac{V_1T_2}{T_1 } } \end{gathered}$} }[/tex]
Where:
V₁ is the initial volumeT₁ is the initial temperatureV₂ is the final volumeT₂ is the final temperatureNow, we substitute the values in the formula:
[tex]\boxed{\large\displaystyle\text{$\begin{gathered}\sf \bf{V_2=\frac{(0.5 \ L\times313\not{k} )}{493\not{k} } } \end{gathered}$} }[/tex]
[tex]\boxed{\boxed{\large\displaystyle\text{$\begin{gathered}\sf \bf{V_2\approx0.32 \ Liters } \end{gathered}$} }}[/tex]
The final volume of the balloon, when completely cooled in the refrigerator, will be approximately 0.32 liters.In an ice cream shop, the probability that customers order chocolate flavor is 0.6, vanilla flavor is 0.5. Determine the probability of ordering chocolate or vanilla.
(Which probability formula(s) to be used? Why?
Using the formula for two events not mutually exclusive, the probability of ordering either one is given as 0.8.
What is the probability of independent events?Since we assume that the events are not mutually exclusive, this implies that the occurrence of event B is not affected by the probability of occurrence of event A.
Then, the probability of ordering either one is the sum of their individual probabilities minus the probability of ordering both.
The probability formula is:
p (chocolate or vanilla) = p (chocolate) + p (vanilla) - p (chocolate and vanilla)
p (chocolate) = 0.6
p (vanilla) = 0.5
p (chocolate or vanilla) = 0.6 + 0.5 - 0.6 * 0.5
= 1.1 - 0.3
= 0.8
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Please help as soon as possible, thank you in advance to whoever helps
The area of the logo 1 in square feet is 38.465 ft²
How to find the area of the logo in square feet?Remember that the area of a circle of radius R is given by the formula:
A = 3.14*R²
Here we can see that the radius of the circle is (1/2 in), but we wat the are in square feet, so let's write that in feets.
1 in = 7ft, then:
(1/2 in) = (7/2 ft) = 3.5 ft.
Replace that in the formula for the area:
A = 3.14*(3.5 ft)²
A = 38.465 ft²
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From 100 yards away, a marksman hit 27/50 of the targets last year.
The marksman hit 54% of the targets last year when expressed as a percentage, based on hitting 27 out of 50 targets from a distance of 100 yards.
From the given information, we know that a marksman hit 27 out of 50 targets last year from a distance of 100 yards.
To analyze this data, we can calculate the hit rate or success rate of the marksman. The hit rate is calculated by dividing the number of hits by the total number of attempts or trials.
Hit rate = Number of hits / Total number of attempts
In this case, the number of hits is 27, and the total number of attempts is 50.
Hit rate = 27 / 50
Simplifying the fraction, we get:
Hit rate = 0.54 or 54%
Therefore, the marksman had a hit rate of 54% last year.
This means that out of the 50 targets attempted from a distance of 100 yards, the marksman successfully hit 27 of them.
The hit rate serves as a measure of accuracy and effectiveness in target shooting. A higher hit rate indicates a higher level of skill and precision.
It's important to note that other factors such as weather conditions, visibility, and the difficulty level of the targets can influence the hit rate. Additionally, the marksman's skills may improve or vary over time, so this hit rate represents their performance specifically for the past year.
By analyzing the hit rate, we can gain insights into the marksman's accuracy and assess their proficiency in target shooting from a distance of 100 yards.
The question was incomplete. find the full content below;
Rewrite The Fraction In The Sentence Below As A Percentage.
From 100 Yards Away, A Marksman Hit 27/50 Of The Targets Last Year.
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While driving your rental car on your vacation in Europe, you find that you are getting 13.3 km/of gasolineWhat does this value correspond to in miles per gallon?
13.3km/L=
_mi/gal
The value of 13.3km/L corresponds to 30.595 miles/gal
how to find the value after conversionThe conversion required is 13.3km/L to mile/gal
converting km to miles
1km = 0.621371 miles
13.3 km = ?
cross multiplying results to
? = 13 * 0.621371 = 8.077 miles
converting L to gallons
1 liters = 0.264172
hence we have that
= 8.077 / 0.264
= 30.595
thus, 13.3km/L is equal to 30.595 miles/gal
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Please I need help with this math problem
Step-by-step explanation:
I believe it is asking for the probability that x is greater than the mean + two standard deviations .....
look at the mean ....count up two SD ( labelled at the bottom) ....then see what is to the right of this point : 2.35 % + .15 % = 2.5% is greater
If -1 and 1 + 5i are roots of f(x) = x ^ 3 - x ^ 2 + 24x + 26 what is the missing root?
The missing root is -24 - 5i.
To find the missing root of the polynomial function f(x) = x^3 - x^2 + 24x + 26, we can use the fact that the sum of all the roots of a polynomial equation is equal to the negation of the coefficient of the second-to-last term divided by the coefficient of the leading term.
In this case, the coefficient of the second-to-last term is 24, and the coefficient of the leading term is 1. Therefore, the sum of all the roots is -24/1 = -24.
We already know that -1 and 1 + 5i are roots, so we can subtract them from the sum to find the missing root:
Missing root = -24 - (-1) - (1 + 5i) = -24 + 1 - 1 - 5i = -24 - 5i.
Note that the missing root is a complex number, indicating that the polynomial has at least one complex root.
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the priniting company charges a fixed amunt for creating artwork then charges an additonal amount based on number
The price per shirt when 100 shirts are sold is of $5.
How to define a linear function?The slope-intercept equation for a linear function is presented as follows:
y = mx + b
The coefficients m and b represent the slope and the intercept, respectively, and are explained as follows:
m represents the slope of the function, which is by how much the dependent variable y increases or decreases when the independent variable x is added by one.b represents the y-intercept of the function, representing the numeric value of the function when the input variable x has a value of 0. On a graph, the intercept is given by the value of y at which the graph crosses or touches the y-axis.From the graph of the function, two points are given as follows:
(0, 20) and (20, 100).
Hence the slope is given as follows:
m = (100 - 20)/(20 - 0)
m = 4.
Hence the cost function is of:
y = 4x + 20.
For 20 shirts, the cost is of $100, hence the cost per shirt is given as follows:
100/20 = $5 per shirt.
Missing InformationThe problem is given by the image presented at the end of the answer.
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Y = -1
3x - y =4
On graph
The graph of the equation y = -1 is a horizontal line passing through (0, -1), and the graph of the equation 3x - y = 4 is a line passing through the points (-2, -10), (0, -4), and (2, 2).
To graph the given equations, we'll plot the points that satisfy each equation and then connect them to form a line.
Equation 1: y = -1
This equation represents a horizontal line passing through the y-coordinate -1. Regardless of the x-coordinate, the y-value remains constant at -1. Therefore, we plot a point at (0, -1) and draw a horizontal line through that point.
Equation 2: 3x - y = 4
To graph this equation, we can rewrite it in terms of y:
y = 3x - 4
Now we can choose a few x-values, substitute them into the equation, and solve for y to obtain the corresponding y-values. Let's select three x-values: -2, 0, and 2.
For x = -2:
y = 3(-2) - 4
y = -6 - 4
y = -10
For x = 0:
y = 3(0) - 4
y = -4
For x = 2:
y = 3(2) - 4
y = 6 - 4
y = 2
Now we have three points: (-2, -10), (0, -4), and (2, 2). Plotting these points on the graph, we can draw a line connecting them.
In summary, the graph of the equation y = -1 is a horizontal line passing through (0, -1), and the graph of the equation 3x - y = 4 is a line passing through the points (-2, -10), (0, -4), and (2, 2).
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Differentiate between equity and equality in mathematics class.
Find the coordinates of B if p(1, 2) partition segment AB in the ratio 1:2 and A (2, 4).
The calculated coordinates of point B on line AB is (-1, 0)
Calculating the coordinates of point BFrom the question, we have the following parameters that can be used in our computation:
P = (1,2)
A = (2,4)
Also, we have
m : n = 1 : 2
The coordinates of point P are calculated using
P = 1/(m + n) * (mx₂ + nx₁, my₂ + ny₁)
Substitute the known values in the above equation, so, we have the following representation
(1, 2) = 1/(1 + 2) * (1 * x + 2 * 2, 1 * y + 2 * 4)
Evaluate
(3, 6) = (x + 4, y + 6)
So, we have
x = -1 and y = 0
Hence, the coordinates of point B on line AB is (-1, 0)
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The function y = 11x6 + 13x¹ is
a) odd
b) even
c) neither even nor odd
d) both even and odd
e) none of the above
Answer:
a)
Step-by-step explanation:
the function is 11x6=66+13=79x¹=79
hope it helps
Assuming that you invested today a value of $400; you will have $684 after 11 years. Find the interest rate which satisfies this assumption.
The interest rate that satisfies the assumption is approximately 5.33%.
We have,
To find the interest rate that satisfies the assumption, we can use the formula for compound interest:
[tex]A = P \times (1 + r)^t[/tex]
Where:
A = Final amount
P = Principal amount (initial investment)
r = Annual interest rate (in decimal form)
t = Time (in years)
In this case, we have:
P = $400
A = $684
t = 11 years
Let's substitute these values into the formula and solve for r:
$684 = $400 x [tex](1 + r)^{11}[/tex]
Dividing both sides by $400, we get:
[tex]1.71 = (1 + r)^{11}[/tex]
Now, we need to isolate (1 + r) by taking the 11th root of both sides:
[tex](1 + r) = 1.71^{1/11}[/tex]
Using a calculator, we find:
(1 + r) ≈ 1.0533
Subtracting 1 from both sides, we get:
r ≈ 0.0533
To express the interest rate as a percentage, we multiply by 100:
r ≈ 5.33%
Therefore,
The interest rate that satisfies the assumption is approximately 5.33%.
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The diameter of a planet is about 27,998 mi. The diameter of the planet's moon is about 29% of the diameter of the planet. What percent of the volume of the planet is the volume of its moon?
Question content area bottom
The volume of the planet's moon is ? % of the volume of its planet.
The volume of the moon can be shown to be 3.07% of the volume of the planet.
How to find the percentage ?First, calculate the radius of the planet and the moon.
The radius (r) of the planet is half of its diameter:
r = 27, 998 mi / 2
= 13, 999 mi
The volume of the planet is V:
= 4 / 3 π ( 13, 999 mi)³
= 11, 493, 372, 846 cubic miles
The volume of the moon is:
V = 4 / 3 π (4,059.71 mi) ³
= 352, 432, 952 cubic miles
The Percent volume :
= ( Volume of moon / Volume of planet) x 100
= ( 352, 432 ,952 cubic miles / 11, 493,372,846 cubic miles) x 100
= 3.07 %
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1. cos^2x = sin^2x + 1/2
2. 2cos( π/2 - x) * sin (π/2 + x) - 1 = 0
3. 8sin x/2 * cos x/3 * cosx * cos2x = 1
4. 1 + cosx = cos x/2
x = ±π/6 + πn, ±11π/12 + πn, where n is an integers are solutions of the equation cos²x = sin²x + 1/2
To solve the equation cos²x = sin²x + 1/2, we can use the trigonometric identity sin²x + cos²x = 1.
Rearranging the equation, we have:
cos²x - sin²x = 1/2
Using the identity cos²x - sin²x = cos(2x), we can rewrite the equation as:
cos(2x) = 1/2
The solutions to this equation can be found by taking the inverse cosine (or arccosine) of both sides:
2x = ±π/3 + 2πn, ±11π/6 + 2πn, where n is an integer
Dividing both sides by 2, we get:
x = ±π/6 + πn, ±11π/12 + πn, where n is an integers
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Which expression is equivalent to
Answer:
The answer is the third option
Step-by-step explanation:
When an exponent is raised to the power of another exponent, both exponents are multiplied.
Recall that a number without an exponent is thought to be raised to the power of 1.
So after multiplying the exponents of all of the variables by 4, we are left with a solution identical to the third option.
Alex is studying houses in his area. He collected data, constructed a scatter plot, and found a line of best fit for his data. The line of best fit for the cost of a house, y
, in terms of the square footage of the house, x
, is y=271x−107,631.
Based on Alex's model, what is the predicted cost of a house with an area of 1,250 square feet?
Size of the house should be 2900 ft².
Correct option is B.
We have,
A linear equation is an equation in which the highest power of the variable is always 1. It is also known as a one-degree equation.
Given,
Equation for the line that expresses price of house
y = 0.06x + 60.5
where y is the price in thousand dollars, x is area in square feet.
Price of the house = $235000
⇒ y = 235
Then,
235 = 0.06x + 60.5
0.06x = $235 - 60.5
0.06x = 174.5
x = 174.5/0.06
x = 2908.33 ≈ 2900
Hence, 2900 ft² should be the size of the house.
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complete question:
A house is listed for sale at $235,000, but the listing does not include square
footage of the house. Based on the comps, the line of best fit is
y=0.06x + 60.5. If the price is fair, what size (in square feet) should the house
be?
OA. 2850 ft2
OB. 2900 ft2
OC. 20,000 ft²
OD. 2350 ft²
what values of x make the inequality -5x - 7 > 3x + 1 true
Hello!
[tex]-5x - 7 > 3x + 1\\\\-5x - 3x > 1+7\\\\-8x > 8\\\\\boxed{x < -1}[/tex]
x < -1x ∈ ]-∞ ; -1[all the values < -1 (-1 not included)Determine whether the
quadratic function
y=x² + 4x + 6 has
a maximum or minimum value.
Then find the value.
O maximum
minimum
The value is
Answer:
(a) The function has a minimum value
(b) The minimum value is 2
Step-by-step explanation:
(a)Currently y = x^2 + 4x + 6 is in standard form, whose general equation is
y = ax^2 + bx + c.
We know that for our function a = 1.
When a > 0, the parabola opens upward and the vertex is a minimumWhen a < 0, the parabola opens downward and the vertex is a maximumThus, y = x^2 + 4x + 6 must have a minimum value.
(b) Whenever a problem asks for the minimum value, it's asking for the y-coordinate of the minimum.
Step 1: First we can find the x-coordinate of the minimum using the equation -b/2a from the quadratic formula.
Plugging in 4 for b and 1 for a, we get:
x-coordinate of minimum = -4 / 2(1)
x-coordinate of minimum = -4 / 2
x-coordinate of minimum = -2
Step 2: Now we can plug in -2 for x in the quadratic function. The result will be our minimum value:
f(-2) = (-2)^2 + 4(-2) + 6
f(-2) = 4 - 8 + 6
f(-2) = -4 + 6
f(-2) = 2
Thus, the minimum value of the quadratic function is 2.
passenger on a boat notices that there is a dolphin 4.1 yards below the boat. There is also a fish 3.5 yards below the boat. They also see a bird that is 3.5 yards above the boat.
Part A: Explain how you would create a number line for these points. (1 point)
Part B: What does zero represent on your number line? (1 point)
Part C: Determine which two points are opposites, using absolute value. Be sure to show your work. (2 points)
Answer:
Step-by-step explanation:24 ft
what is the range of the reciprocal function -7/3x+11
The range of the reciprocal function f(x) = -7/(3x + 11) is all real numbers except for the value x = -11/3.
The range of the reciprocal function f(x) = -7/(3x + 11), we need to determine the set of all possible values that f(x) can take.
The reciprocal of a number is obtained by taking the multiplicative inverse, which means that the reciprocal of a non-zero number a is 1/a.
We are looking for the range of the reciprocal function, so we need to consider the range of the expression (3x + 11).
The range of (3x + 11) is the set of all real numbers, except when the denominator becomes zero.
The range of the reciprocal function f(x) = -7/(3x + 11) is all real numbers except when (3x + 11) equals zero.
To find the x-value when (3x + 11) equals zero, we solve the equation:
3x + 11 = 0
Subtracting 11 from both sides, we get:
3x = -11
Dividing by 3, we find:
x = -11/3
The reciprocal function is undefined at x = -11/3, as it would result in a division by zero.
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At which root does the graph of f(x) = (x - 5)³(x + 2)2 touch the x-axis?
O-5
0-2
02
05
Step-by-step explanation:
Wherever the fxn = 0 is where it touches the x -axis
0=(x-5)^3 (x+2)^2 means that one or both of the factors is 0
(x-5)^3 is zero at x = 5
(x+2)^2 is zero at x = -2
sooo 5 and -2
Six packs of cola are on sale for $1.50. If a customer buys a 24 pack, what is the total charge including 8% sales tax?
Answer: [tex]\sf\$6.48[/tex]
Step-by-step explanation:
If a six-pack of cola is sold for $1.50, then the price per can is:
[tex]\sf\implies\$1.50 \div 6 = \$0.25[/tex]
A 24 pack of cola contains 24 cans, so the total cost of the 24 pack is:
[tex]\sf\implies 24 \times \$0.25 = \$6.00[/tex]
The sales tax is 8%, so the tax on the purchase is:
[tex]\sf\implies \dfrac{8}{100} \times \$6.00 = \$0.48[/tex]
Therefore, the total charge including sales tax is:
[tex]\sf\implies\$6.00 + \$0.48 = \$6.48[/tex]
Chi-Chiribi! EmergerOrpheus at your service. Hope it helps!
A sculpture of the Earth is 829 kg. How many hydrpgen atoms
The number of hydrogen atoms present in the sculpture of earth if the mass of earth is 829 kg is 4.145 × 10²⁹.
Given that,
Mass of the sculpture of the earth = 829 kg
We know that,
Mass of an hydrogen atom = 2 × 10⁻²⁷ kg
Number of hydrogen atoms = Mass of earth / Mass of hydrogen atom
= 829 / 2 × 10⁻²⁷
= 414.5 × 10²⁷
= 4.145 × 10²⁹
Hence the required number of atoms is 4.145 × 10²⁹.
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Find the measure of each side indicated for the top two
Find the measure of each angle indicated for the bottom two
Round to the nearest tenth for all
The measure of each missing indicated side of the triangle would be given as follows;
1.) X = 2.7
2.) X = 15.2
How to determine the length of the indicated sides of the triangle?For question 1.)
Using the sine formula such as given below;
a/sinA = b/sin B
where ;
a = X
A = 27°
b = 6
B = 90°
That is;
X/sin27° = 6/sin90°
X = 6×0.453990499/1
= 2.7
For question 2.)
a/sinA = b/sin B
where ;
a = X
A = 47.4°
b = 14
B = 180-(47.4+90)
= 180-137.4
= 42.6
That is;
X/sin47.4° = 14/sin42.6°
X = 14×0.736097087/0.676875969
= 10.305359218/0.676875969
= 15.2
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Suppose that a study of elementary school students reports that the mean age at which children begin reading is 5,7 years With a standard deviation of 0.9 years. If a sampling distribution is created using samples of the ages at which 57 children begin reading what would be the mean of the sampling distribution of sample means? Round to two decimal places if necessary
By the Central Limit Theorem, the mean of the sampling distribution of sample means would be 5.7 years.
Since, The Central Limit Theorem establishes that, for a normally distributed random variable X, with mean μ and standard deviation σ , the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean μ and standard deviation s = σ / √n.
For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.
In this problem, we have that:
The mean for the entire population is 5.7 years.
So, by the Central Limit Theorem, the mean of the sampling distribution of sample means would be 5.7 years.
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Considering this real world scenario, find the length of UV and RD and explain your reasoning as part of your answer. Show your work please (10) points!
The triangles ABC and CDE are similar
The width AB of the river is 172.73 ft
Stating if the triangles are similar or notFrom the question, we have the following parameters that can be used in our computation:
The triangles ABC and CDE
The above triangles have corresponding angles and they also have similar side lengths
This means that the triangles are similar
Calculating the width AB of the riverHere, we have the following ratio
AB : 100 = 38 : 22
So, we have
AB/100 = 38/22
This gives
AB = 100 * 38/22
Evaluate
AB = 172.73
Hence, the width AB of the river is 172.73 ft
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37 and 1/2 % of 104?
37 and 1/2 % of 104 is 39 .
Given,
37 and 1/2 % of 104
Simplifying further,
Convert mixed fraction into simple fraction,
37 and 1/2 % = 75/2%
Now,
75/2% of 104
= 75/2 ×1/100×104
=39 .
Hence 39 is the required answer.
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An American traveling in Japan wishes to exchange American money (dollars, symbol $) for Japanese money (yen, symbol ). If the exchange rate is , then how many dollars will the traveler need to purchase ?
The traveler will need (y / x) dollars to purchase y yen.
To determine the number of dollars the traveler will need to purchase a certain amount of yen, we need to divide the desired amount of yen by the exchange rate.
Let's assume the traveler wants to purchase y yen.
and, the exchange rate is 1 dollar = x yen.
To find the number of dollars, we can set up the following equation:
y yen × (1 dollar / x yen) = (y / x) dollars
Therefore, the traveler will need (y / x) dollars to purchase y yen.
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To calculate the number of dollars needed to purchase a specific amount of Japanese yen, we'll need the exchange rate between the two currencies. However, the exchange rate provided in your question is missing. Please provide the exchange rate between the US dollar (USD) and the Japanese yen (JPY) so that I can help you calculate accurately.
the foundation of a house has 1600 termites. The termites grow at a rate of 4.2% each day. How would this be written out?
The number of terminates are 2,384.78.
An exponential function can be used to illustrate the daily growth of termites.
If "t" represents the number of days, then "N" represents the number of termites.
⇒ N = [tex]1600(1 + 0.042)^{t}[/tex]
Where 0.042 is the decimal form of 4.2%.
Using this formula,
It can be calculate the number of termites after any number of days t.
For example,
After 10 days, the number of termites would be:
⇒ N = [tex]1600(1 + 0.042)^{10}[/tex]
⇒ N = [tex]1600(1.042)^{10}[/tex]
⇒ N ≈ 2,384.78 termites
Hence,
⇒ N = 2,384.78 termites
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using the centriod explain the relationship between point z and the triangle. justify with applicable theorem.
4. if the length of gu is 18 units, what is the length of gz?
5. if the length of zt is 4.8 units, what is the length of ot?
show all work
By the Centroid Theorem, the lengths are given as follows:
4. GZ = 12 units.
5. OT = 14.4 units.
What is the Centroid Theorem?The Centroid Theorem states that the centroid of a triangle is located two-thirds of the total distance from each vertex to the midpoint of the opposite side.
Hence for length GZ we have that:
GZ = 2GU/3
GZ = 2 x 18/3
GZ = 12 units.
For length OT, we have that:
ZT = 1/3OT
OT = 3ZT
OT = 3 x 4.8
OT = 14.4 units.
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