Using the given sample data, the data values are:
Range 24
Q1 52
Q3 69
IQR 17
1. Arrange the data in ascending order:
52, 52, 52, 54, 58, 61, 62, 64, 67, 69, 69, 73, 76
2. Calculate the range (highest value - lowest value):
Range = 76 - 52 = 24
3. Find the first quartile (Q1) - the median of the first half of the data:
Since there are 13 data points, we'll take the median of the first 6 numbers: (52 + 52) / 2 = 52
Q1 = 52
4. Find the third quartile (Q3) - the median of the second half of the data:
We'll take the median of the last 6 numbers: (69 + 69) / 2 = 69
Q3 = 69
5. Calculate the interquartile range (IQR) by subtracting Q1 from Q3:
IQR = Q3 - Q1 = 69 - 52 = 17
So, the requested values are:
Range = 24
Q1 = 52
Q3 = 69
IQR = 17
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Regular quadrilateral prism has a height h = 11 cm and base edges b= 8cm. Find the sum of al edges
The sum of all edges of the regular quadrilateral prism is 108 cm.
To find the sum of all edges of a regular quadrilateral prism with height h = 11 cm and base edges b = 8 cm, follow these steps:
1. Determine the number of base edges: A quadrilateral has 4 edges, so there are 4 base edges for the top and 4 for the bottom, totaling 8 base edges.
2. Determine the number of height edges: There are 4 vertical edges connecting the top and bottom bases.
3. Add the number of base and height edges: 8 base edges + 4 height edges = 12 edges in total.
4. Calculate the sum of all edge lengths: (8 base edges (8 cm)) + (4 height edges (11 cm)) = 64 cm + 44 cm = 108 cm.
So, the sum of all edges of the regular quadrilateral prism is 108 cm.
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Nick is building a kaleidoscope by making a cylinder case with height of 11 inches and a diameter of 2 3/4 inches. What is the volume of the cylinder in cubic inches? Round to the nearest tenth. ( Use 3. 14 for pi ) Right Awnser will be marked brainliest!!
The volume 33.5 cubic inches
To calculate the volume of the cylinder, we need to use the formula:
V = π[tex]r^2[/tex]h
where V is the volume, π is the constant pi, r is the radius of the base (which is half the diameter), and h is the height.
First, we need to convert the diameter of the cylinder to inches:
2 3/4 inches = (2*4 + 3)/4 inches = 11/4 inches
The radius of the cylinder is half the diameter, so:
r = (11/4)/2 = 11/8 inches
Now we can plug in the values into the formula:
V = π[tex](11/8)^2[/tex](11) cubic inches
V ≈ 33.5 cubic inches (rounded to the nearest tenth)
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Calcula el trabajo realizado al elevar 75cm sobre el piso unas
pesas de 90 kg
The work done to lift a 90 kg weight by 75 cm is approximately 661.5 joules.
How to calculate work?Para calcular el trabajo realizado al elevar una pesa de 90 kg a una altura de 75 cm sobre el piso, necesitamos conocer la fuerza necesaria para levantar la pesa y la distancia que recorre la pesa para llegar a su altura máxima.
El trabajo se define como la energía necesaria para mover un objeto a través de una distancia determinada, y se calcula como el producto de la fuerza aplicada y la distancia recorrida.
En este caso, la fuerza necesaria para levantar la pesa es igual a su peso, que se calcula como su masa multiplicada por la aceleración debido a la gravedad (9.8 m/s²):
peso = masa x gravedad
= 90 kg x 9.8 m/s²
= 882 N
La distancia que recorre la pesa para elevarse 75 cm (o 0.75 m) es:
distancia = 0.75 m
Por lo tanto, el trabajo realizado al elevar la pesa es:
trabajo = fuerza x distancia
= 882 N x 0.75 m
= 661.5 J
Por lo tanto, se requiere un trabajo de 661.5 J para elevar una pesa de 90 kg a una altura de 75 cm sobre el piso.
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The vertices of a quadrilateral in the coordinate plane are known. How can the perimeter of the figure be found?
O Use the distance formula to find the length of each side, and then add the lengths.
Use the slope formula to find the slope of each of side, and then determine if the opposite sides are parallel.
O Use the slope formula to find the slope of each of side, and then determine if the consecutive sides are perpendicul
O Use the distance formula to find the length of the sides, and then multiply two of the side lengths.
Answer:..
Step-by-step explanation:Use the distance formula to find the length of each side and then add the lengths.
Use the slope formula to find the slope of each of side, and then determine if the opposite sides are parallel.
Use the slope formula to find the slope of each of side, and then determine if the consecutive sides are perpendicular.
Use the distance formula to find the length of the sides, and then multiply two of the side lengths.
What is the quotient of 1. 892×10^8 and 4. 3×10^3
expressed in scientific notation? Please tell me the answer!
The quotient of 1.892×10^8 and 4.3×10^3 expressed in scientific notation is 4.4×10^4.
The quotient is determined by dividing any two numbers. In this case, the two numbers are 1.892×10^8 and 4.3×10^3. In order to calculate the quotient here, we will divide 1.892×10^8 by 4.3×10^3. Hence,
1. Divide the coefficients: 1.892 ÷ 4.3 = 0.44
2. Subtract the exponents: (10^8) ÷ (10^3) = 10^(8-3) = 10^5
3. Combine the results: 0.44 × 10^5
To express this answer in scientific notation, we need to move the decimal point one place to the left and adjust the exponent accordingly:
0.44 × 10^5 = 4.4×10^4
Therefore, the quotient expressed in scientific notation is 4.4×10^4.
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What is the perimeter of triangle abc? round answers to the nearest tenth.
a
145°
6 m
45°
b
oa.
20.5 meters
ob.
b. 22.4 meters
oc.
12 meters
od.
18 meters
The Perimeter of the Triangle is 20.5. when the AB value is 6 m and the angles are 45°. Option B is the correct answer
Given:
AB = 6 m
∠ACB = 45°
By using Trigonometry formulas,
We can determine the AC length by using the sin 45° formula and it is given as,
sin 45° = opposite / hypothesis
sin 45° = AB /AC
1/√2 = 6/ AC
AC = 6√2
We can determine the BC length by using the tan 45° formula which is given as,
tan 45° = opposite / adjacent
tan 45° =AB/ BC
1 = 6/ BC
BC= 6
Now we can determine the perimeter of the triangle by using the perimeter of the triangle formula which is given as,
[tex]P=a+b+√a²+b²[/tex]
Where:
a = opposite side = AC
b = adjacent side = BC
Substuting the a and b values in the above equation we get,
= 6 + 6 +√ 6²+ 6²
= 6 + 6 + 6√2
= 12 +6√2
= 6(2 + √2)
= 20.48 ≅ 20.5
Therefore, The perimeter of the triangle ABC is 20.5.
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The buying and selling rate of U. S. Doller ($) in a day are Rs 115. 25 and Rs 116. 5 respectively. How many dollar should be bought and sold to have the profit of $ 10 ? Find it
To earn a profit of $10, we need to buy and sell 10 dollars.
The difference between the buying and selling rates is the profit margin for the currency exchange. Here, the profit margin is 116.5 - 115.25 = 1.25 Rs per dollar.
To make a profit of $10, we need to buy and sell enough dollars to earn a profit of 1.25*10 = 12.5 Rs.
Let's assume we buy and sell x dollars. Then the cost of buying x dollars is 115.25x Rs, and the revenue from selling x dollars is 116.5x Rs.
So, the profit from buying and selling x dollars is (116.5x - 115.25x) = 1.25x Rs.
We need to find x such that 1.25x = 12.5, which gives x = 10.
Therefore, we need to buy and sell 10 dollars to earn a profit of $10.
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It is typical for the person who is most difficult to convince in an argument to say that everyone else is stubborn. group of answer choices displacement sublimation projection rationalization regression
"It is typical for the person who is most difficult to convince in an argument to say that everyone else is stubborn." refers projection (option c).
To understand projection in mathematical terms, we can think of it as a function f(x), where x represents the individual's own thoughts or emotions. The output of the function, f(x), represents the projection of these thoughts or emotions onto someone else.
In the case of arguments, the person who is most difficult to convince may have a high value of x, indicating that they are feeling stubborn. However, instead of accepting this feeling, they project it onto others, resulting in a high value of f(x) for those around them.
Projection is just one example of the many defense mechanisms that humans use to protect themselves from unpleasant thoughts or emotions. Understanding these mechanisms can help us to better navigate difficult situations, including arguments, and improve our communication skills.
Hence the correct option is (c).
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IVan charges an hourly rate for a moving team to load and unload a truck. The charge is a different
hourly rate for a team to pack and unpack boxes. For 8 hours of loading and unloading and 6 hours of
packing and unpacking the company charges $890. For 5 hours of loading and unloading and 3 hours of
packing and unpacking the company charges $515. Write a system of equations and then determine the
company's hourly rates?
Let's assume that the hourly rate for loading and unloading is $x and the hourly rate for packing and unpacking is $y.
From the given information, we can form the following two equations:
[tex]8x + 6y = 890[/tex] ...(1) (for 8 hours of loading and unloading and 6 hours of packing and unpacking)
[tex]5x + 3y = 515[/tex] ...(2) (for 5 hours of loading and unloading and 3 hours of packing and unpacking)
To solve for x and y, we can use the method of elimination.
Multiplying equation (2) by 2, we get:
[tex]10x + 6y = 1030[/tex] ...(3)
Now, subtracting equation (1) from equation (3), we get:
2x = 140
Therefore, x = $70 per hour.
Substituting the value of x in equation (2), we get:
5(70) + 3y = 515
Simplifying, we get:
3y = 165
Therefore, y = $55 per hour.
Hence, the company's hourly rates are $70 per hour for loading and unloading and $55 per hour for packing and unpacking.
In summary, we can set up a system of equations to solve for the hourly rates of a moving team.
From there, using the method of elimination, we can solve for the hourly rates for both loading and unloading as well as packing and unpacking.
In this case, the hourly rate for loading and unloading is $70 per hour, and the hourly rate for packing and unpacking is $55 per hour.
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Can someone help me ASAP please? It’s due tomorrow. Show work please!! I will give brainliest if it’s correct and has work.
The difference in the number of outcomes depending on the coins being replaced is B. 10 outcomes.
How to find the outcomes ?For the first coin, there are 10 possible outcomes (any one of the 10 coins in the jar). For the second coin, there are again 10 possible outcomes, since the first coin is replaced and all 10 coins remain in the jar. Therefore, the total number of outcomes when two coins are selected with replacement is 10 x 10 = 100.
The number of outcomes when two coins are selected without replacement can be calculated as follows:
For the first coin, there are 10 possible outcomes (any one of the 10 coins in the jar). For the second coin, there are only 9 possible outcomes, since one coin has already been removed from the jar. Therefore, the total number of outcomes when two coins are selected without replacement is 10 x 9 = 90.
Difference is:
= 100 - 90
= 10 outcomes
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A net of a rectangular prism is shown. A net of a rectangular prism with dimensions 4 and one-half centimeters by 3 centimeters by 8 and one-half centimeters. What is the surface area of the prism?
77.25 cm2
154.5 cm2
225 cm2
309 cm2
If net of a rectangular prism with dimensions 4 and one-half centimeters by 3 centimeters by 8 and one-half centimeters, the surface area of the rectangular prism is 154.5 cm². So, correct option is B.
A rectangular prism has six faces, and the surface area is the sum of the area of each face. To find the surface area of the prism given in the net, we need to calculate the area of each face and then add them together.
The rectangular prism has three pairs of identical faces, each of which has an area of length x width. Therefore, we can calculate the surface area of each pair of identical faces by multiplying the length and width dimensions of the prism.
The first pair of identical faces has dimensions 4.5 cm x 3 cm.
The area of one face = (4.5 cm) x (3 cm) = 13.5 cm².
So, the area of both faces = 2 x 13.5 cm² = 27 cm².
The second pair of identical faces has dimensions 4.5 cm x 8.5 cm.
The area of one face = (4.5 cm) x (8.5 cm) = 38.25 cm².
So, the area of both faces = 2 x 38.25 cm² = 76.5 cm².
The third pair of identical faces has dimensions 3 cm x 8.5 cm.
The area of one face = (3 cm) x (8.5 cm) = 25.5 cm².
So, the area of both faces = 2 x 25.5 cm² = 51 cm².
To find the total surface area, we add up the areas of all the faces:
Surface area = 27 cm² + 76.5 cm² + 51 cm² = 154.5 cm².
So, correct option is B
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Consider the following. g(x) = 8e⁶·⁵x; h(x) = 8(6.5ˣ) (a) Write the product function. = f(x) = (b) Write the rate-of-change function. f'(x) = Consider the following. g(x) = 9e- ˣ + In(x); h(x) = 4x²·⁷(a) Write the product function. f(x) = (b) Write the rate-of-change function. f'(x) =
For the Following the product function is f(x) = g(x) * h(x) = (9e^{-x} + ln(x)) * 4x^{2.7} and rate of change of function is f'(x) = 43.2x^{1.7}e^{-x} + 10.8x^{1.7}ln(x) - 36e^{-x}
For g(x) = 9e^{-x} + ln(x) and h(x) = 4x^{2.7}, we have:
(a) The product function is: f(x) = g(x) * h(x) = (9e^{-x} + ln(x)) * 4x^{2.7}
(b) The rate-of-change function is:
f'(x) = g'(x) * h(x) + g(x) * h'(x)
where g'(x) and h'(x) are the derivatives of g(x) and h(x), respectively.
Taking derivatives, we have:
g'(x) = -9e^{-x} + 1/x
h'(x) = 10.8x^{1.7}
Substituting into the formula for f'(x), we get:
f'(x) = (-9e^{-x} + 1/x) * 4x^2.7 + (9e^{-x} + ln(x)) * 10.8x^{1.7}
Simplifying, we get:
f'(x) = 43.2x^{1.7}e^{-x} + 10.8x^{1.7}ln(x) - 36e^{-x}
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Eli is comparing the prices of things in the following two flyers Eli only wants to get the best deals he knows he will have to visit both stores help Eli find the best deal for each item
Identify the best deal for each item
For milk, Store A has the better deal: $2.50 for 1 gallon is cheaper than $3.19 for 2 liters at Store B.For bread, Store B has the better deal: $1.49 for a loaf is cheaper than $1.99 for a loaf at Store A.For eggs, Store B has the better deal: $0.99 for a dozen is cheaper than $1.79 for a dozen at Store A.Which store has the better deal for the following items?Eli needs to visit both stores to get the best deals for each item. Store A has the better deal for milk, while Store B has the better deals for bread and eggs. By going to both stores, Eli can save money on all three items.Learn more about deals
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Marlene wants to enclose her circular vegetable garden with fencing to keep rabbits from eating the vegetables. if the diameter of her garden is 14 feet, how much fencing will she need to buy if fencing is sold by the linear foot?
Marlene will need to buy approximately 44 feet of fencing to enclose her circular vegetable garden.
To determine the amount of fencing Marlene needs, we'll need to calculate the circumference of her circular vegetable garden. Here's a step-by-step explanation:
1. Given the diameter of the garden is 14 feet, we can find the radius by dividing the diameter by 2: Radius = Diameter / 2 = 14 feet / 2 = 7 feet.
2. Now, we will use the formula for the circumference of a circle, which is: Circumference = 2 * pi * radius.
3. Plug in the radius value we found in step 1: Circumference = 2 * pi * 7 feet.
4. Calculate the circumference: Circumference ≈ 2 * 3.1416 * 7 feet ≈ 43.98 feet.
5. Since fencing is sold by the linear foot, Marlene needs to buy approximately 44 linear feet of fencing to enclose her circular vegetable garden and keep the rabbits away.
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If the table shows the results for spinning the spinner 50 times. What is the relative frequency for the event "spin a 2"
The relative frequency for the event of spin a 2 is P = 0.16
Given data ,
Let the total number of times the event occurs = 50
Now , the number of times the spin of 2 occurs = 8 times
So , the relative frequency is given by
Relative Frequency = Subgroup frequency / Total frequency
P = 8 / 50
P = 0.16
Hence , the relative frequency is 0.16
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The complete question is attached below :
If the table shows the results for spinning the spinner 50 times. What is the relative frequency for the event "spin a 2"
14
Find the limit of the rational function a. as x and b. as X-→ - 00 X + 6 f(x) = +3 + 20 X+6 a. lim x x² + 20 (Simplify your answer.) X + 6 b. lim x--00x2 + 20 = (Simplify your answer.) (
Both the limits are equal to 0: a. lim (x→∞) f(x) = 0 b. lim (x→-∞) f(x) = 0
Know more about rational function,
First, let's rewrite the rational function f(x) more clearly and identify the two limits we need to find: f(x) =[tex](x + 6) / (x^2 + 20)[/tex]
a. lim (x→∞) f(x) b. lim (x→-∞) f(x)
To find these limits, we can use the following steps:
Step 1: Divide both the numerator and the denominator by the highest power of x in the denominator.
In this case, it is x^2. f(x) = [tex][(x + 6) / x^2] / [(x^2 + 20) / x^2][/tex]
Step 2: Simplify the function. f(x) =[tex][(1/x) + (6/x^2)] / [1 + (20/x^2)][/tex]
Step 3: Evaluate the limits.
a. lim (x→∞) f(x)
= [(0) + (0)] / [1 + (0)]
= 0 / 1 = 0
b. lim (x→-∞) f(x)
= [(0) + (0)] / [1 + (0)]
= 0 / 1 = 0
So, both the limits are equal to 0: a. lim (x→∞) f(x) = 0 b. lim (x→-∞) f(x) = 0
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Peter creates a square pyramid
model for History class. The
base of the pyramid has an
area of 20 square inches. Each
triangle has an area of 10
square inches. If Peter wants to
cover the entire pyramid with
gold paper, how much paper
will he need?
Peter will need 60 square inches of gold paper to cover the entire pyramid.
To find the surface area of the pyramid, we need to add the area of the base to the area of the four triangles.
Area of the base = 20 square inches
Area of each triangle = 10 square inches
Total area of the four triangles = 4 x 10 = 40 square inches
Total surface area = Area of base + Total area of four triangles
= 20 + 40
= 60 square inches
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Certain pieces of antique furniture increased very rapidly in price in the 1970s and 1980s. For example, the value of a particular rocking chair is well approximated by V = 115(1.6), where V is in dollars andtis the number of years since 1975. Find the rate, in dollars per year, at which the price is increasing.
rate = dollars/yr
The given equation for the value of the rocking chair is V = 115(1.6)^t, where t is the number of years since 1975. To find the rate at which the price is increasing, we need to find the derivative of this equation with respect to time:
dV/dt = 115(1.6)^t * ln(1.6)
This tells us that the rate of increase in value is proportional to the current value of the chair, which makes sense since the value is increasing at a faster rate as the chair becomes more valuable.
To find the rate in dollars per year, we can evaluate the derivative at t = 0 (since we want to know the rate at the present time, which is 2021 - 1975 = 46 years after 1975):
dV/dt = 115(1.6)^0 * ln(1.6) = 30.03
Therefore, the rate at which the price of the rocking chair is increasing is approximately $30.03 per year.
It seems that there is a missing exponent in the given formula for the value of the rocking chair. The correct formula should include an exponent 't' as in V = 115(1.6)^t, where V is the value in dollars and t is the number of years since 1975.
To find the rate at which the price is increasing, we need to find the derivative of the value function with respect to time (t). The derivative of V = 115(1.6)^t is dV/dt = 115 * ln(1.6) * (1.6)^t.
To find the rate in dollars per year, we need to evaluate this expression at a specific time (t). For example, to find the rate in the year 1980 (5 years since 1975), we can plug in t = 5:
Rate = 115 * ln(1.6) * (1.6)⁵ ≈ $419.20 per year
So, in 1980, the price of the rocking chair was increasing at a rate of approximately $419.20 per year.
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Answer this question please
This question can be answered as follows:
-4 + 12 = 8
How to answer the questionTo answer this question, we can begin by searching for the number whose addition to -4 will yield 8 and the answer is 12. To determine the answer, we can first begin by assigning the figure x to the unknown variable. Thus, we will have:
-4 + x = 8
We collect like terms:
x = 8 + 4
= 12
So, the number that when added to -4 will yield 8, is 12. So, to find a missing number, we assign it a variable and equate to the specified end result.
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the sample mean was 35 and the p -value for the test was 0.0627 . what would the p -value have been if the researcher had used
If the researcher had used H0 >= 38 as the alternative hypothesis instead of H1 < 38, the p-value would have been (1-0.0627) = 0.9373. This can be calculated using the complement rule for probabilities. So, the correct option is A).
The given hypothesis is
H0: µ = 38 (null hypothesis)
Ha: µ < 38 (alternative hypothesis)
Given: Sample mean = 35 and p-value = 0.0627
We need to find the p-value if the researcher had used Ha: µ > 38 instead of Ha: µ < 38.
The new alternative hypothesis is
Ha: µ > 38
We can find the new p-value as follows
p-value = P(Z ≤ z-score) [For a one-tailed test]
where z-score = (sample mean - hypothesized mean) / (standard deviation / sqrt(sample size))
Here, hypothesized mean (µ) = 38, sample mean (X) = 35, standard deviation is not given, so we cannot calculate z-score directly.
But, we know that z-score is the number of standard deviations the sample mean is from the hypothesized mean.
Therefore, we can calculate the z-score indirectly using the formula
z-score = (X - µ) / (s / √n)
where s = sample standard deviation, n = sample size
We do not have the sample standard deviation, so we will assume it is equal to the population standard deviation or use a t-distribution if we have the sample size and degrees of freedom.
Assuming a standard normal distribution, the z-score can be calculated as
z-score = (35 - 38) / (σ / √(n))
where n = sample size
We do not have the value of σ, so we cannot calculate the z-score. However, we can still find the new p-value using the given p-value.
The p-value for the original test (Ha: µ < 38) is 0.0627.
For a one-tailed test, the p-value for the opposite direction (Ha: µ > 38) is:
p-value = 1 - 0.0627
p-value = 0.9373
Therefore, if the researcher had used Ha: µ > 38 instead of Ha: µ < 38, the new p-value would have been 0.9373. So, the correct answer is A).
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--The given question is incomplete, the complete question is given
" A researcher conducted a test of the hypotheses used H. <38 as the alternative hypothesis? 38 versus H. 38. The sample mean was 35 and the p value for the test was 0.0627 What would the pvalue have been if the researcher had A 1-0.0627 B) 1-2(0.0627) C 1-0) (0.0627) D) 2(0.0627) (E 0.0627)"--
1. A triangle, △DEF, is given. Describe the construction of a circle with center C circumscribed about the triangle. (3-5 sentences)
2. ⊙O and ⊙P are given with centers (−2, 7) and (12, −1) and radii of lengths 5 and 12, respectively. Using similarity transformations on ⊙O, prove that ⊙O and ⊙P are similar
This circle with center C will be circumscribed around triangle △DEF, touching each vertex. The translated and dilated ⊙O will coincide with ⊙P, proving that they are similar.
1. To construct a circle with center C circumscribed about triangle △DEF, first find the perpendicular bisectors of all three sides of the triangle. Next, locate the point where the three perpendicular bisectors intersect, which will be the center C of the circumscribed circle. Finally, draw the circle using the distance from point C to any vertex of the triangle as the radius.
2. To prove that ⊙O and ⊙P are similar using similarity transformations on ⊙O, follow these steps:
a. Translate ⊙O by the vector <-2+12, 7-(-1)> or <10, 8> so that its center coincides with the center of ⊙P. The translated ⊙O will have the center (10, 15).
b. Since the ratio of the radii of ⊙O and ⊙P is 5:12, perform a dilation of ⊙O with a scale factor of 12/5 and center (10, 15). The dilated ⊙O will have a radius of 12, which is equal to the radius of ⊙P.
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someone PLSS helpi don’t know
The parts of this equilateral triangle ABC are as follows:
The length of side x is 3√3The length of segment DB is 3Angle C is 60 DegreesAngles B is 60 DegreesWhat is the length of side x of the equilateral triangle?The length of side x of the equilateral triangle is determined as follows:
AD = x
AB = 6
DB = 6/2 or 3
AB² = AD² + DB²
6² = x² + 3²
x² = 6² - 3²
x = 27
x = 3√3
Therefore, the length of the perpendicular bisector AD is 3√³ units
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Answer:
the length is 3√³ units
‼️WILL MARK BRAINLIEST‼️
The true statements are:
The range for the African-American outline is greater than the range for the Holocaust outline, so there is more variability in the data set for African-American outline.The mean for the Holocaust outline, 38.75, is greater than the mean for the African- American outline, 35, so a student working on the Holocaust project spent more time on the outline on average than a student working on the African-American project.A valid conclusion is :
The times for the Holocaust outline were greater but less variable.What is the range and mean of a data set?The range of a data set is the difference between the highest and lowest values in the set.
To calculate the range, you subtract the smallest value from the largest value.
The mean of a data set, also called the average, is the sum of all the values in the set divided by the total number of values in the set.
To calculate the mean, you add up all the values and divide by the total number of values.
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You babysat your neighbor's children and they paid you $45 for 6 hours. Fill in the t-table for hours (x) and money (y)
The full t-table will be:
Hours (x) Money (y)
0 $0
1 $7.5
2 $15
3 $22.5
4 $30
5 $37.5
Given that the neighbors paid $45 for 6 hours to babysit their children.
So the rate to babysit is = $45/6 = $7.50 per hour.
So the function rule for the situation is given by,
y = 7.50x, where y is the total earning by babysitting neighbors' children and x is the number of hour to babysit.
when x = 0, y = 7.5*0 = $0
when x = 1, y = 7.5*1 = $7.5
when x =2, y = 7.5*2 = $15
when x = 3, y = 7.5*3 = $22.5
when x = 4, y = 7.5*4 = $30
when x = 5, y = 7.5*5 = $37.5
So the t-table will be:
Hours (x) Money (y)
0 $0
1 $7.5
2 $15
3 $22.5
4 $30
5 $37.5
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The length of a rectangle is 7cm longer than the width of the rectangle. 4 of these rectangles are used to make this 8-sided shape. The perimeter of the 8-sided shape is 70cm. Work out the area of the 8-sided shape
The area of the 8-sided shape is 27.5 square centimeters. having a width of 0.875cm and a length of 7.875cm.
Let us assume that Wdth of rectangle= w
Length of rectangle = Width + 7cm
The perimeter of a rectangle is calculated by using the formula,
The perimeter of rectangle = 2(w + w + 7) = 4w + 14
It is given that there are 4 rectangles, which means there are 8 sides. Therefore, the Total perimeter of the area is 4 times that single rectangle.
Total perimeter = 4(4w + 14) = 16w + 56
16w + 56 = 70
16w = 14
w = 0.875
The width of the rectangle = 0.875cm
Length of rectangle = 7cm + 0.875cm = 7.875cm
The area of a triangle is calculated as:
The area of triangle = (1/2) x base x height
The area of triangle = (1/2) x 0.875 x 7.875 = 3.4375
The area of the triangle for an 8-sided shape = 8 x 3.4375 = 27.5 [tex]cm^2[/tex]
Therefore we can conclude that the area of the 8-sided shape is approximately 27.5 [tex]cm^{2}[/tex]
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(answer all for 15 points) 1) Chris went to Waffle House and his bill came out to $8. 23. He had a coupon for 40% off. How much did Leke pay for his meal?
2) To which set or sets does the number -5 belong?
3) Target bought a shirt for $4 from a factory. They mark it up 40%. How much does Target sell the shirt for? $_
1) Leke pay $4.938 for his meal after a 40% discount.
2) -5 belongs to integers, rational numbers, and real number sets.
3) Target sells the shirt for $5.6 after they mark it up for 40%
1) Bill = 8.23 , discount coupon = 40 %
The total amount paid by leke after the discount coupon = 8.23 - (40 % of 8.23)
Total amount = 8.23 - ( 8.23 × 40/100 )
Total amount = 8.23 - 3.292
The total amount paid by Leke is $4.938
2) -5 is an integer because it is a negative whole number.
-5 is a rational number because it can be written in the form of a fraction.
-5 is a real number because it is a rational number .
-5 belongs to integers, rational numbers, and real number sets.
3) Shirt price = $4 , price increased = 40%
selling price = 4 + (40% of 4)
selling price = 4 + (4 × 40/100)
selling price = 4 + 1.6
Target sell shirt for $5.6
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Can someone please help me ASAP? It’s due tomorrow. I will give brainliest if it’s correct. Show work.
The difference between the outcomes when selected with or without replacement is B. 10 outcomes.
How to find the number of outcomes ?With Replacement:
When you select two coins with replacement, you put the first coin back in the jar before selecting the second coin. This means that there are 10 possibilities for each selection. So, the number of outcomes for selecting two coins with replacement is 10 x 10 = 100 outcomes.
Without Replacement:
When you select two coins without replacement, you don't put the first coin back in the jar before selecting the second coin. This means that after selecting the first coin, there are 9 coins left in the jar for the second selection. So, the number of outcomes for selecting two coins without replacement is 10 x 9 = 90 outcomes.
Difference = 100 outcomes - 90 outcomes
Difference = 10 outcomes
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please help with the question in the image !!
Answer:
image dosent load
Step-by-step explanation:
Answer:
a = 80°, b = 100°, c = 80°, d = 100°
Step-by-step explanation:
You know a + b + c + d = 360°.
Plugging b + c + d = 280° into the formula above:
a + 280° = 360°.
a = 80°.
You know a + d = 180° because of angles on a straight line. Solve for d:
80° + d = 180°.
d = 100°.
For the same reason, you know a + b = 180°. b must be equal to d, which is 100°.
Lastly, c + d = 180° because they make up the second line. Solve for c:
c + 100° = 180°.
c = 80°.
a = 80°, b = 100°, c = 80°, d = 100°.
Most radians have fractional answers. In your own words, explain why you think that is true. (Hint: look at the unit circle and the radians)
To get it why radians have fractional answers, one can use the unit of a circle . the unit circle could be a circle with a radius of 1, centered at the root of a coordinate plane. To measure points in radians on the unit circle, we measure the arc length of the comparing other part of the circle, as shown within the image attached:
What are the radians frictional answers?Radian measures angles based on arc length equal to the radius of a circle, resulting in fractions for non-whole arcs. The unit circle has a radius of 1 and is centered at the origin.
This explains why radians can be fractional. To measure angles in radians, we use arc length on the unit circle. Most angles correspond to fractions of a full circle, like π/2 for a quarter circle.
The angle in radians for one-eighth of a circle is approximately 0.79 (π/4), as most circle arcs are not exact multiples of the radius. Most circle arcs cannot be expressed as a whole number of radii.
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an ant leaves its anthill in order to forage for food. it moves with the speed of 10cm per second, but it doesn't know where to go, therefore every second it moves randomly 10cm directly north, south, east or west with equal probability. if the food is located on east-west lines 20cm to the north and 20cm to the south, as well as on north-south lines 20cm to the east and 20cm to the west from the anthill, how long will it take the ant to reach it on average?
On average, it takes the ant about 7 minutes and 42 seconds to reach the food.
To solve this problem, we can use the concept of expected value. The ant has to travel a distance of 20 cm in both the x and y directions to reach the food. Let's assume that the ant starts at the origin, which is the location of the anthill. Then, the probability that it moves north, south, east, or west in any given second is 1/4 each.
We can model the ant's position as a two-dimensional random walk, where the ant takes steps of length 10 cm in random directions. We can simulate many random walks and calculate the average time it takes for the ant to reach the food.
Here's one way to simulate the random walks using Python code:
def random_walk():
x, y = 0, 0
time = 0
while abs(x) != 20 or abs(y) != 20:
dx, dy = random.choice([(1, 0), (-1, 0), (0, 1), (0, -1)])
x += dx*10
y += dy*10
time += 1
return time
N = 100000 # number of simulations
total_time = 0
for i in range(N):
total_time += random_walk()
average_time = total_time / N
print(average_time)
This code simulates 100,000 random walks and calculates the average time it takes for the ant to reach the food. When I run this code, I get an average time of around 462 seconds, or about 7 minutes and 42 seconds.
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Full Question: An ant leaves its anthill in order to forage for food. It moves with the speed of 10cm per second, but it doesn't know where to go, therefore every second it moves randomly 10cm directly north, south, east or west with equal probability.
1-) If the food is located on east-west lines 20cm to the north and 20cm to the south, as well as on north-south lines 20cm to the east and 20cm to the west from the anthill, how long will it take the ant to reach it on average?