The length of C'A' is 10 units.
Triangle ABC is dilated by the rule Dy, 5/4
CA = 8
The length of C'A' will be determined by using the formula of scale factor
Scale factor = Dimensions of new figure/ Dimensions of original figure
So, Scale factor = C'A' / CA
(5/4) x CA = C'A'
C'A' = (5/ 4) x 8
C'A' = 10 units
Thus, the length of C'A' is 10 units.
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Answer:
10
Step-by-step explanation:
Edge 2023
Brainleist and 50 points to first correct answer!!!!!!
Answer:
If we are using the Triangle Inequality Theorem the answer would be:
Step-by-step explanation:
1: Yes
2: Yes
3: Yes
4: No
5: Yes
6: No
7: No
I hope this helps! :)
Step-by-step explanation:
Due to the triangle side length rule :
any two sides summed must be greater than the remaining side
yes
yes
yes
no 3+4 is not greater than the remaining side 8
yes
no 8+3 not greater than 15
no 4 + 8 not greater than 15
If in a mixture 75%milk and 25% water how much percentage of mixture has to taken away and replace with same amount of water so that milk and water quantity will be half and half
To achieve an equal mixture of milk and water, we need to remove and replace some of the mixture with water. Let's assume that we start with a certain amount of the mixture, and we remove x% of it and replace it with an equal amount of water.
To determine the value of x, we can use the following approach:
First, let's assume that we start with 100 units of the mixture. Therefore, we have 75 units of milk and 25 units of water in the mixture.
If we remove x% of the mixture, we will have (100 - x)% of the original amount left. After removing x%, the amount of milk in the mixture will still be 75 units, but the amount of water will be (75/25)*x = 3x units.
Now, we replace the removed x% of the mixture with an equal amount of water. Therefore, the amount of water in the mixture will increase by x% of the original amount, which is 25x/100. After the replacement, the amount of milk in the mixture will still be 75 units, but the amount of water will be (25 + 25x/100) units.
To achieve an equal mixture of milk and water, we need the amount of milk to be equal to the amount of water. Therefore, we can set up the following equation:
75 = (25 + 25x/100)/(2)
Solving for x, we get x = 33.33%.
Therefore, we need to remove and replace 33.33% of the mixture with water to achieve an equal mixture of milk and water.
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The start of an arithmetic sequence is shown below. what is the nth term in the sequence 10, 12, 14 ,16
Answer:
[tex]a_{n}[/tex] = 2n + 8
Step-by-step explanation:
the nth term of an arithmetic sequence is
[tex]a_{n}[/tex] = a₁ + d(n - 1)
where a₁ is the first term and d the common difference
here a₁ = 10 and d = a₂ - a₁ = 12 - 10 = 2 , then
[tex]a_{n}[/tex] = 10 + 2(n - 1) = 10 + 2n - 2 = 2n + 8
What is one change you can make to one value in Dylan's plan to ensure that he completes his assignment in time? Justify your response.
One change that can be made to one value in Dylan's plan to ensure the assignment is completed is to change hours worked to 4. 20 hours a day.
How to find the change ?The current number of paper flowers that the team can make is:
= 4 x 3 hours a day x 12 people x 5 days per week x 2 weeks
= 1, 440 flowers
One change that can be made would be to increase the number of hours worked to 4. 20 hours.
This would give a total number of flowers of :
= 4 x 4. 20 hours a day x 12 people x 5 days per week x 2 weeks
= 2, 016 flowers
They would then meet the target.
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Abby bought 2/3 pound of seeds for $7. What is the cost of 1 whole pound of seeds?
Answer:
$ 14.50
Step-by-step explanation:
So 2/3 is $7, right?
If we multiply to find how much it would be to get to one pound, you would find that 1.5 would get you to that number.
So, that means two 2/3, and a half, meaning:
7+7+0.5=14.5
Leading to your answer: $ 14.50
Hope this helps :)
Rate of change
y=25(1.071)x
The given exponential function will grow with,
⇒ 7.1%
We have to given that;
The exponential function is,
⇒ y = 25 (1.071)ˣ
Since, We know that;
A relation in between a set of inputs having one output each is called a function. and an expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable (the dependent variable).
Now, For identify the change represents growth or decay, and determine the percentage rate of increase or decrease as,
Since, We have,
⇒ y = 25 (1.071)ˣ
Clearly, The equation is shows exponential growth because the growth factor is 1.071 which is greater than 1.
And, The general form equation is:
y(x) = a(1 + r)ˣ
Where, r is the growth percent.
Hence,
⇒ 1 + r = 1.071
⇒ r = 0.071 = 7.1%
Therefore, We get;
Rate = 7.1%
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Unit 7
1. For each equation, find the initial value and the percent increase or decrease.
a. f(x) = 37(1.04)*
i. IV:
ii. % Inc/Dec:_
b. f(x) = (-0.7) (0.6)*
i. IV:
ii. % Inc/Dec:
a. f(x) = 37(1.04)^x
i. The initial value (IV) is 37, which represents the starting point or value of the function when x=0.
ii. The percent increase or decrease can be found by comparing the function value at x=1 to the initial value.
When x=1, f(1) = 37(1.04)^1 = 38.48
The percent increase is [(38.48 - 37)/37] x 100% ≈ 4.05%
Therefore, the initial value is 37 and the percent increase is approximately 4.05%.
b. f(x) = (-0.7) (0.6)^x
i. The initial value (IV) is -0.7, which represents the starting point or value of the function when x=0.
ii. The percent increase or decrease can be found by comparing the function value at x=1 to the initial value.
When x=1, f(1) = (-0.7)(0.6)^1 = -0.42
The percent decrease is [(−0.42 - (−0.7))/−0.7] x 100% ≈ 40%
Therefore, the initial value is -0.7 and the percent decrease is approximately 40%.
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use a proportion to estimate each animal population total ducks counted:1,100 marked ducks counted:257 total marked duck:960
The total population of ducks is 960.
To estimate the total population of ducks, we can set up a proportion using the marked ducks as a sample.
Let's use the following proportion:
Total Ducks / Marked Ducks = Total Marked Ducks / Marked Ducks Counted
Total Ducks / 257 = 960 / 257
Total Ducks x 257 = 960 x 257
Divide both sides by 257 to solve for Total Ducks:
Total Ducks = (960 x 257) / 257
Total Ducks = 960
Based on the proportion, we estimate that the total population of ducks is 960.
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EMERGENCY. help please
The probability of getting $800 or $1000 is 0.125.
Sample space = {Bankrupt, $350, $400, $600, $800, Lose a turn, $700, $300, $450, $900, Bankrupt, $600, $900, $400, $750, $300, $500, $450, $1000, $250, $800, $600, $200, $550}
We know that, probability of an event = Number of favourable outcomes/Total number of outcomes.
Here, total number of outcomes = 24
a) P(bankrupt) = 2/24 = 1/12
b) P(at least $500) = 12/24 = 1/2
c) P($800) = 2/24
P($1000) = 1/24
P($800 or $1000) = 2/24 + 1/24
= 3/24
= 1/8
= 0.125
d) P(a maximum of $700) = 4/24 = 1/6
e) P(less than $400) = 5/24
f) P(lose a turn) = 1/24
Therefore, the probability of getting $800 or $1000 is 0.125.
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find the gcf of the following literal terms. m 7 n 4 p 3 and mn 12 p 5
The GCF of the given literal terms m⁷ n⁴ p³ and mn¹² p⁵ is mn⁴p³.
To find the greatest common factor (GCF) of the given literal terms, we need to identify the highest power of each variable that appears in both terms.
The variables present in both terms are m, n, and p.
For m, the highest power is m⁷ in the first term and m¹ in the second term. Therefore, the common factor for m is m¹.
For n, the highest power is n⁴ in the first term and n¹² in the second term. Therefore, the common factor for n is n⁴.
For p, the highest power is p³ in the first term and p⁵ in the second term. Therefore, the common factor for p is p³.
Combining these common factors, we get the GCF of the given literal terms:
GCF = m¹ * n⁴ * p³
Therefore, the GCF of the given literal terms m⁷ n⁴ p³ and mn¹² p⁵ is mn⁴p³.
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what is the perimeter of an oval
Answer:
To find the perimeter (or arc length) of an ellipse, you'll need to use an elliptic integral
The perimeter is a distance around the outlines or edge of any shape. A practical example of measuring the perimeter of an ellipse would be the distance you cover when you walk along the edges of an elliptical-shaped field. Or the length of fence you need to surround it
if one u.s. dollar buys 1.59 canadian dollars, how many u.s. dollars can you purchase for one canadian dollar (cad)?
U.S. dollars can be purchased for one Canadian dollar is 0.63 U.S. dollar.
One U.S. dollar buys 1.59 Canadian dollar
1 U.S. dollar = 1.59 CAD dollar
By using the unitary method to calculating the value of 1 Canadian dollar.
The unitary method is a process by which we find the value of a single unit from the value of multiple units and the value of multiple units from the value of a single unit .
Value of one Canadian dollar
1/1.59 U.S. dollar = 1 CAD dollar
1 CAD dollar = 0.63 U.S. dollar
1 CAD dollar can buy 0.63 U.S. dollar.
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Pleaseee help me !! Will give brainliest :)
To find the equation of a regression line, ½ = ax + b, you need these formulas:
A regression line has a slope of 1.885. If the mean of the x-coordinates of the data points is 3.448, and the mean of the y-coordinates is 12.318, what is the y-value of the y-intercept of the line to three decimal places?
A. -5.819
B. - 19.771
C.19.771
D. 5.819
The y-value of the y-intercept of the line is approximately 5.819. The correct answer is (D).
The equation of a regression line is y = mx + b, where m is the slope and b is the y-intercept. We are given that the slope is 1.885, so we have:
y = 1.885x + b
To find the y-intercept, we need to substitute the mean x and y values into this equation and solve for b. We have:
12.318 = 1.885(3.448) + b
Simplifying this equation gives:
12.318 = 6.50668 + b
Subtracting 6.50668 from both sides gives:
5.81132 = b
Rounding this value to three decimal places gives:
b ≈ 5.819
Therefore, the y-value of the y-intercept of the line is approximately 5.819.
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the table shows the lengths of several rivers in the us the aberage length of the five rivers is 1,211.8 miles whats the length of the snake river
a. The mean of the ages is 6.8 years.
b. Without doing any calculations, we know that the mean age after 10 years will be larger.
c. The mean after 10 years will be 16.8 years.
How to calculate the meanThe mean of the 5 rivers is 2203 miles. Thus, the correct answer is option D. The mean length of the major rivers in North America is 2203 miles.
a. The mean of the ages is (2+7+8+10)/4
= 6.75 ~ 6.8 years.
b. Without doing any calculations, we know that the mean age after 10 years will be larger. This is beacuse each of the the ages will be greater by 10.
Thus, the correct answer is option a.
The mean after 10 years will be (12+17+18+20)/4
= 16.75 ~ 16.8 years.
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eight years ago mr salam was 10 times as old as his neighbour. if the present age of mr salman and his neighbour is x and y respectively.
i-express of mr salam and his neighbour's age eight years ago
ii- equation connectingg x and y with the help of the given condition
Answer:
10x - 8 = y
Step-by-step explanation:
This question was hard to read so i used the variables! I hope you do good! :)
What is the value of x in this triangle 65° (10x+3)
in a triangle, the sum of the angles is always 180 degrees. so, if we have one angle of 65 degrees and another angle of (10x + 3) degrees, the third angle must be:
180 - 65 - (10x + 3) = 112 - 10x
since the sum of the angles in a triangle is always 180 degrees, we can set up an equation:
65 + (10x + 3) + (112 - 10x) = 180
simplifying the equation:
180 - 3 = 65 + 112 - 10x + 10x
177 = 177
the equation is true for all values of x. this means that x could be any value and the triangle would still be valid.
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Pls Find the volume of this shape for me
The volume of the triangular prism is 18.9 yd³.
The volume of a triangular prism is given by the formula:
V = (1/2) x base x height x length
where base is the area of the triangular base, height is the height of the triangular base, and length is the height of the prism.
In this case, the base area is:
= (1/2) x 9yd x 2.1
= 9.45 yd²
So the volume of the prism is:
V = (1/2) x 9.45 x 4
= 18.9 yd³
Therefore, the volume of the triangular prism is 18.9 yd³.
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graph the equation of a line with slope 1/3 and y-intercept 0
Please show all your work! Thank you!
The required equation is y = 1/3 x.
Given that the slope of the line is 1/3 and y - intercept is 0.
To find the equation of the line by using slope (m) and y-intercept (c) is given by
y = mx + c.
That implies, the equation of the line is y = 1/3x + 0= 1/3 x.
Therefore, the equation of line y = 1/3 x and graph is given below,
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Volume of a cone rh, curved surface area of a cone = xr!] [Volume of a spheresurface area of a sphere 4ar']
The solid is formed from a hemisphere of radius rcm fixed to a cone of radius rcm and height hem. The volume of the hemisphere is one third of the volume of the solid.
(a) Find h in terms of r
(b) The slant height of the cone can be written as Vk cm, where k is an integer.
Find the value of k
(c) Find an expressionin terms of r and x, for the total surface area, in cm², of the solid
Answer:
Long solution
Step-by-step explanation:
(a) Let the height of the cone be h cm. The volume of the hemisphere is given by (1/2)(4/3)πr³ = (2/3)πr³. The volume of the solid is the sum of the volumes of the hemisphere and the cone, which is (2/3)πr³ + (1/3)πr²h. Since the volume of the hemisphere is one third of the volume of the solid, we have:
(2/3)πr³ = (1/3)πr²h
Simplifying, we get:
2r = h
Therefore, h is expressed in terms of r as h = 2r.
(b) The slant height of the cone can be found using the Pythagorean theorem. Let l be the slant height, then we have:
l² = r² + h²
Substituting h = 2r, we get:
l² = r² + (2r)² = 5r²
Taking the square root of both sides, we get:
l = r√5
Since k is an integer, we can write:
l = Vk cm, where k is an integer
Comparing the two expressions, we get:
Vk = r√5
Therefore, the value of k is k = ⌊r√5⌋, where ⌊x⌋ denotes the largest integer less than or equal to x.
(c) The total surface area of the solid is the sum of the curved surface area of the cone, the curved surface area of the hemisphere, and the area of the circular base of the cone. We have:
Curved surface area of the cone = πr l = πr(r√5) = πr²√5
Curved surface area of the hemisphere = 2πr²
Area of the circular base of the cone = πr²
Therefore, the total surface area of the solid, in cm², is given by:
πr²√5 + 2πr² + πr² = (πr²)(√5 + 3)
Akbar bought a watch at a discount of 5%. The original price of the watch was Rs 910. How much did Akbar pay for the watch?
Akbar paid Rs 864.50 for the watch after applying the 5% discount.
Akbar bought a watch that was originally priced at Rs 910, but he was able to purchase it at a 5% discount. To calculate how much he paid for the watch, we need to first find out how much the discount was.
To do this, we can use the formula:
Discount = Original price x Discount rate
In this case, the original price of the watch is Rs 910 and the discount rate is 5%, which we can express as a decimal by dividing by 100:
Discount = Rs 910 x 0.05
Discount = Rs 45.50
So the discount Akbar received on the watch was Rs 45.50.
To find out how much he actually paid for the watch, we can subtract the discount from the original price:
Price paid = Original price - Discount
Price paid = Rs 910 - Rs 45.50
Price paid = Rs 864.50
Therefore, Akbar paid Rs 864.50 for the watch after applying the 5% discount.
In summary, Akbar bought a watch at a 5% discount, which amounted to Rs 45.50. He paid Rs 864.50 for the watch after the discount was applied, even though the original price of the watch was Rs 910.
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a tank initially contains 100 gallons of water containing 40 pounds of salt. a salt solution containing 2 pound of salt per gallon is added to the tank at the rate of 3 gallons per minute, and the solution in the tank is drained off at the rate of 2 gallons per minute. how much salt is in the tank after 30 minutes?
After 30 minutes, there will be 100 pounds of salt in the tank.
Initially, the tank contains 40 pounds of salt.
For every minute, the amount of salt being added is 2 pounds/gallon * 3 gallons/minute = 6 pounds/minute.
The amount of salt being drained off is 2 pounds/gallon * 2 gallons/minute = 4 pounds/minute.
After 30 minutes, the total amount of salt added is 6 pounds/minute * 30 minutes = 180 pounds.
The total amount of salt drained off is 4 pounds/minute * 30 minutes = 120 pounds.
Therefore, the net increase in the amount of salt in the tank is 180 pounds - 120 pounds = 60 pounds.
The final amount of salt in the tank after 30 minutes is 40 pounds (initial amount) + 60 pounds (net increase) = 100 pounds.
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(1/4) ^ -4 =256
but when we use the 1/a^n there is already a one over the four.. also why do we end up with a whole number when its 1/256 at a point
From the power rules, it is possible to prove that [tex](\frac{1}{4})^{-4 }[/tex]=256.
Power RulesThe main power rules are presented below.
Multiplication with the same base: you should repeat the base and add the exponents.Division with the same base: you should repeat the base and subtract the exponents.Power. For this rule, you should repeat the base and multiply the exponents.Exponent negative - For this rule, you should write the reciprocal number with the exponent positive.Zero Exponent. When you have an exponent equal to zero, the result must be 1.For proving the exercise, you should follow the steps below.
Apply the Power Rule - Exponent negativeFor this, you should write the reciprocal number with the exponent positive. Thus,[tex](\frac{1}{4})^{-4 }= 4^{4 }[/tex]
Solve the power Rule -In the previous step, you found [tex]4^{4 }[/tex]. This represents that 4 x 4 x 4 x 4= 16 x 16=256.
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Conditional Probability
A card is chosen at random from a standard deck. What is the probability that the card is a spade or a king, given that it is black?
Find each probability as a fraction (in simplest form), decimal, and percent.
The probability that a card is a spade or a king, given that it is black is 3/26 or 0.1154 or 11.54%
The probability that a card is a spade or a king, given that it is black?In a standard deck of cards, we have the following readings
Black cards = 26
Black spade or king = 3
So, we have the probability formula to be
Probability = Black spade or king/Black cards
This gives
Probability = 3/26
Evaluate
Probability = 0.1154
Express as percentage
Probability = 11.54%
Hence, the probability that a card is a spade or a king, given that it is black is 3/26
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Find the area of a square whose side is 25 32 by 24 m
The area of a square is given by the formula A = s^2, where s is the length of a side of the square.
Here, the length of a side of the square is given as 25 32 by 24 m. This means that the side length is somewhere between 25 and 26 meters, since 32 by 24 is a fraction between 1 and 2.
To find the exact side length, we can convert the mixed number 25 32 by 24 to an improper fraction:
25 32 by 24 = (25 x 32 + 24) / 32 = 824 / 32
Simplifying this fraction by dividing both the numerator and denominator by 8 gives:
824 / 32 = 103 / 4
Therefore, the side length of the square is 103/4 meters.
Now we can find the area of the square:
A = (103/4)^2
= 10609/16
= 663.06 square meters (rounded to two decimal places)
Therefore, the area of the square is approximately 663.06 square meters.
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The time the player spends on storytelling must be two times of
combatting. The time spent on exploring must be six times that of
combatting. The time for puzzle solving is the same amount as
combatting, and players should spend 15 minutes on the Hero
character creation. We need to create a game that has 615
minutes (more than 10 hours) in total playtime. What is the total
combat time in this game we should set? Write the equation
The total combat time in the game should be set as 60 minutes.
Let's denote the time spent on combatting as "c" (in minutes).
Based on the given information:
Storytelling time is two times combatting time: 2cExploring time is six times combatting time: 6cPuzzle-solving time is the same as combatting time: cHero character creation time: 15 minutesTo find the total playtime, we add up all the components:
Total playtime = Combat time + Storytelling time + Exploring time + Puzzle-solving time + Hero creation time
or, Total playtime = c + 2c + 6c + c + 15
We know that the total playtime is 615 minutes, so we can set up the equation:
615 = 10c + 15
Simplifying the equation:
10c = 615 - 15
10c = 600
c = 60
Therefore, the total combat time in the game should be set as 60 minutes.
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What is the maximum vertical distance between the line
y=2x+63
and the parabola y=x^2 for -7
The maximum vertical distance between the line y = 2x + 63 and the parabola y = x^2 for -7 ≤ x ≤ 7 is 32 units.
To find the maximum vertical distance between the line y = 2x + 63 and the parabola y = x^2 for -7 ≤ x ≤ 7, we need to determine the points on the parabola that have the maximum vertical distance from the line.
Let's start by finding the points of intersection between the line and the parabola. Setting the equations equal to each other, we have:
2x + 63 = x^2
Rearranging the equation, we get:
x^2 - 2x - 63 = 0
Solving this quadratic equation, we find that x = -7 and x = 9 are the x-coordinates of the points of intersection.
Now, let's calculate the corresponding y-values for these x-coordinates on the parabola:
For x = -7, y = (-7)^2 = 49
For x = 9, y = (9)^2 = 81
Next, we can calculate the y-values for the line at these x-coordinates:
For x = -7, y = 2(-7) + 63 = 49
For x = 9, y = 2(9) + 63 = 81
Since the y-values of the line and the parabola are the same at the points of intersection, the maximum vertical distance occurs at the point (-7, 49) and (9, 81).
The maximum vertical distance between the line and the parabola is the difference in y-coordinates at these points:
81 - 49 = 32
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What is the value of X on the number line?
Answer:
1/3
Step-by-step explanation:
X is exactly halfway between 1/6 and 1/2, ie it is the average of those values.
average of 1/6 and 1/2 = (1/6 + 1/2) /2
= (1/6 + 3/6) /2
= (4/6) /2
= (2/3) /2
= 1/3
In the figure below, S is the center of the circle. Suppose that JK= 13, LM = +3x1, SN = 6, and SP = 6. Find the following.
Answer:
x=4
Step-by-step explanation:
LM=JK
3x+1=13
3x=12
x=4
A sciencetist used 90 grams of sodium nitrate during an experament One ounce is approximately equal to 28. 3 grams which measurement is closets to the number of ounces of sodium nitrate the scienctist used
The measurement closest to the number of ounces of sodium nitrate the scientist used is 3.17 ounces.
We are given that the scientist used 90 grams of sodium nitrate. To convert this measurement to ounces, we can divide the grams by the conversion factor of 28.3 grams per ounce.
90 grams / 28.3 grams per ounce ≈ 3.17 ounces
Since 3.17 ounces is the result of the conversion, it is the measurement closest to the number of ounces of sodium nitrate the scientist used.
It's worth noting that the conversion factor given, 28.3 grams per ounce, is an approximation, and the actual value may vary slightly depending on the specific substance being measured. However, for the purpose of this calculation and using the given conversion factor, 3.17 ounces is the closest measurement to the grams provided.
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PLEASE HELP ME WITH THIS ASSINGGMENT I REALLY NEED HELP!!!! PEALSE ANSWER ALL 3 IF YOU CAN!!
Answer: The diameter is is 9, the circumference is 199 inches
Step-by-step explanation:
hope that helps! For the last one, substitute with the formula of a circle. It will make sense.