Which linear function represents the table?
X
4
-2
1
8
-3
y
26
-10
8
50
-16
y = 6x + 2
Oy=6x-2
y=-6x + 2
y=-6x-2
Answer:
A.) y=6x+2
Step-by-step explanation:
I got this answer by first finding the slope. To find the slope you use the slope formula which is y2-y1 over x2-x1. When I set up the equation I got -10-26 over -2-4 and I got -36/-6 which is 6. So your slope is 6. So then you would mark out answer c and d because their slope is negative and the slope I got is positive. To find the y-int I put in two points online and I put in the slope. I did this twice with four different points just to make sure that it was right and then it gave me that the y-int is 2. So then you would mark out b because the y-int is not negative but positive. (Hope this helps in some way...if not then I'm sorry..)
Which statement is missing in the proof?
The correct answer is m√5 + m√2 = 180°.
What are parallel lines?Parallel lines are those in a plane that are regularly spaced apart from one another. There is no crossing of parallel lines.
Given, k and p are parallel lines.
In an expression or equation, one value can be substituted for another and the result will still be the same. This is known as the substitution property of equality. If the values of x and y are the same, then x and y can be substituted for one another.
And we have,
m√1 + m√2 = 180°
And m√5 = m√1
So, m√5 + m√2 = 180°
Therefore, in the proof, the missing term is m√5 + m√2 = 180°.
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The ratio of the number of model cars that Jim owns to the number of model cars Terrence owns is 8 : 6. Terrence owns 36 models cars. How many model cars does Jim own?
The number of Jim's model car is 48
How to determine the number of JIm's carFrom the question, we have the following parameters that can be used in our computation:
Ratio of the number of model cars that Jim owns to the number of model cars Terrence owns is 8 : 6
This means that
Jim : Terrence = 8 : 6
Also from the question, we have
Terrence owns 36 models cars
This means that
Terrence = 36
Substitute the known values in the above equation, so, we have the following representation
Jim : 36 = 8 : 6
Multiply by 6
Jim : 36 = 48 : 36
So, we have
Jim = 48
Hence, the number of car is 48
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part a: find the right reimann sum estimate of the integral from 1 to 5 of f of x dx, based on the subintervals given in the table. (4 points)
A right Riemann sum has the formula A=∑ni=1Δxf(xi) A = ∑ i = 1 n Δ x f ( x i ) where x is the width of each of the n rectangles and f(xi) is the height.
what is is Riemann sum?A specific method of approximating an integral with a finite sum in mathematics is known as a Riemann sum. Riemann is the name of a German mathematician who lived in the 19th century. Approximating the area of functions or lines in graphs, as well as the length of curves and other approximations, is a highly typical application. The picked points in each subinterval of the partition are all in the upper Riemann sum, given an interval partition. The interval is often separated into subintervals of equal size.
Riemann sum formula is A=∑f(xi)Δx A = ∑ f ( x i ) Δ x ,
where A is the curve's area under the evaluable interval,
f(xi) f ( x i ) is each rectangle's height (or the average of the two heights in the case of a trapezoid)
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Assume that the distribution
A statistics instructor randomly selected four bags of oranges, each bag labeled 10 pounds, and
weighed the bags. They weighed 10.8, 10.7, 10.2, and 10.8 pounds.
of weights is Normal. Find a 95% confidence interval for the mean weight of all bags of oranges. Use
technology for your calculations. Answer parts a and b below.
a. Choose the correct interpretation of the confidence interval below and, if necessary, fill in the
answer boxes to complete your choice.
and. A.There is a 95% chance that all intervals will be between
B. We are 95% confident the population mean is between
C. We are 95% confident that the sample mean is between
D. The requirements for constructing a confidence interval are not satisfied.
(Type integers or decimals rounded to the nearest thousandth as needed. Use ascending order.)
95% confident the population mean is between (9.1,9.9).
We are given the following data set:
9.3, 9.7, 9.2, 9.7
What is Standard Deviation?
Standard Deviation [tex]$=\sqrt{\frac{\sum\left(x_i-\bar{x}\right)^2}{n-1}}$[/tex]
where[tex]$x_i$[/tex] are data points, [tex]$\bar{x}$[/tex]is the mean and [tex]$\mathrm{n}$[/tex] is the number of observations.
Mean [tex]$=\frac{\text { Sum of all observations }}{\text { Total number of observation }}$[/tex]
Mean [tex]$=\frac{37.9}{4}=9.475$[/tex]
Sum of squares of differences [tex]$=0.2075$[/tex]
S.D[tex]$=\sqrt{\frac{0.2075}{3}}=0.262$[/tex]
[tex]$95 \%$[/tex] Confidence interval:
[tex]$\bar{x} \pm t_{\text {critical }} \frac{s}{\sqrt{n}}$[/tex]
Putting the values, we get,
[tex]$t_{\text {critical }}$[/tex] at degree of freedom 3 and[tex]$\alpha_{0.05}=\pm 3.182$[/tex]
[tex]$9.475 \pm 3.182\left(\frac{0.262}{\sqrt{4}}\right)=9.475 \pm 0.416842=(9.058158,9.891842) \approx(9.1,9.9)$[/tex]
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Divide 8.88 divided by 10 . Explain how you determine the placement of the decimal point in your quotient and how that changed the value of each digit
With the decimal point in the proper place, dividing decimals is equivalent to dividing entire numbers.
How to Divide Decimals?While dividing decimals, we must remember to place the decimal point correctly in the quotient. This is similar to how we divide whole numbers. The decimal point, which separates a decimal number's whole number and fractional parts, is a dot. A value less than 1 can be found in the digits following the decimal point. 24 is a good example. A decimal number, 15, has a fractional component of 15 and a whole number component of 24. There are two situations in which dividing decimal numbers might occur: the first calls for dividing decimals by whole numbers, and the second requires dividing decimals by decimals.To Learn more About dividing decimals refer To:
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Find the perimeter of the figure shown below
The perimeter of the figure with the varied side length is 52 cm
How to determine the perimeter of the figureFrom the question, we have the following parameters that can be used in our computation:
Shape = composite figure
Smaller shapes = squares and rectangles
Side lengths = varied values
The perimeter of the figure is calculated as
Perimeter = Sum of the sides lengths of the shape
Substitute the known values in the above equation, so, we have the following representation
Perimeter = 12 + 7 + 3 + 4 + 3 + 7 + 6 + 10
Evaluate the sum in the above equation
Perimeter = 52 cm
Hence, the perimeter is 52 cm
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NO LINKS!! Please help me with these questions. Part 3cc
3. Loretta is a single mom with two kids. On 2009, her gross income was $61,840. She filed her taxes as Head of Household and claimed herself and her 2 children. Using the tables above, find Loretta's taxable income.
4. Mike and Lisa are a married couple with 2 kids. On 2009, they made $79,480. They filed jointly. Find Mike and Lisa's taxable income.
Answer:
3. $42,540
4. $53,480
Step-by-step explanation:
Question 3Income
Gross income = $61,840
Allowances
Head of household (2009) = $8,350
Single with 2 dependents = $3,650 + $3,650 · (2) = $10,950
Total allowances = $8,350 + $10,950 = $19,300
Taxable Income
Gross income - total allowances = $61,840 - $19,300 = $42,540
Question 4Income
Gross income = $79,480
Allowances
Married filing jointly (2009) = $11,400
Married with 2 dependents = $7,300 + $3,650 · (2) = $14,600
Total allowances = $11,400+ $14,600 = $26,000
Taxable Income
Gross income - total allowances = $79,480 - $26,000 = $53,480
Cai drove 189 miles in 7 hours. If he continued at the same rate, how far would he travel in 12 hours?
324 Miles
If you divide 189 by 7, you get 27. If you then multiply 27(miles per hour) by 12(hours) you get 324.
Given m is parallel to n, find the value of x
Answer:
x = 44
Step-by-step explanation:
Given that line m is parallel to line n, the angles that we see are same-side exterior angles, meaning that these two angles add up to 180°.
Set up the equation: [tex]112 + (2x - 20) = 180[/tex] and solve for x.
. . . . . . . . . . . . 112 - 112 + 2x - 20 = 180 - 112
. . . . . . . . . . . . 2x - 20 + 20 = 68 +20
. . . . . . . . . . . . 2x /2 = 88 /2
. . . . . . . . . . . . ∴ x = 44
Given the function g(x) = |x-3|, desvribe the graph of function
Answer:
The graph will be a V shape
Step-by-step explanation:
The graph will be a V shape because of the absolute value
about 4% of the population has a particular genetic mutation. 100 people are randomly selected. round your answer to three decimal places. (a) Find the mean for the number of people with the genetic mutation in such groups of 600. (b) Find the standard deviation for the number of people with the genetic mutation in such groups of 600.
We got the mean value 4.167 and standard deviation 19.56.
What is mean value and standard deviation in statistics?In statistics, a mean value is the average value of all the available data. And it can be determined by adding all the data by dividing the amount of data.
A standard deviation is an estimation that implies how far each available data apart from the mean value.
How do we calculate the mean value and standard deviation?we are given, 4% of the population has a genetic mutation
Total people in the group =600
Now, total number of people who have genetic mutation = (4/100) ×600
= 24
the number of randomly selected people =100= X
Mean = Number of selected people/ people who have mutation
Mean = X/n = 100/24 = 4.167
the standard deviation = √∑(X-mean) ²/n
= √∑(selected people - mean) ²/ mutation number
=√(100-4.167) ²/24
standard deviation = 19.56
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I rent a gym for $150 for 30 students. Another time I rent the gym for $350 for 70 students. What is my rate per student?
Answer:
The rate is 5 dollars per student.
Step-by-step explanation:
The rate per student can be found with [tex]\frac{dollars}{student}[/tex]:
[tex]\frac{150dollars}{30student}=5\frac{dollars}{student}\\\\\frac{350dollars}{70student}=5\frac{dollars}{student}[/tex]
The rate is 5 dollars per student.
(2x4-2x³ +7+ 8x²-x) / (x²+2)
The Alternative form of the ''(2x4-2x³ +7+ 8x²-x) / (x²+2)''
is 2[tex]x^{2}[/tex] - 2x + 4 + [tex]\frac{3x - 1}{x^{2} + 2}[/tex]
How to solve algebra equation ?One of the many branches of mathematics is algebra. Algebra, which is a common thread throughout practically all of mathematics, is broadly defined as the study of mathematical symbols and the rules for manipulating these symbols in formulae.One-step equations can be solved in four different ways: by adding, subtracting, multiplying, and dividing. In an equation, both sides will stay equal if we add the same amount to either side.The addition rule and the multiplication/division rule are the two methods for solving equations that are introduced to us in algebra 1. According to the equation addition rule, an equation's solution set can have the same amount added to both sides without altering.Find the attachment answer
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can someone help? i don't understand cos at all
Cos W as a fraction in the simplest terms is 2/3
Trigonometric ratios in a Right angled triangle:Triangle side length ratios are known as trigonometric ratios. In trigonometry, these ratios show how the ratio of a right triangle's sides to each angle.
From a Right-angled triangle with an angle θ
sin θ = Opposite side/Hypotenuse
cos θ = Adjacent side/Hypotenuse
tan θ = Opposite side /Adjacent side
Here we have
A triangle UVW
where VW = 10 units
And WU = 15 units
As we know
cos θ = Adjacent side / Hypotenuse
cos W = VW/WU = 10/15
cos W = 2/3 [ divided by 5 ]
Therefore,
Cos W as a fraction in the simplest terms is 2/3
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f(x) = 3x^2 + 5
g(x) = 4x - 2
h(x) = x^2 - 3x + 1
Find f(x) + g(x) - h(x).
The value of the expression f(x) + g(x) - h(x) will be 2x² + 7x + 2. Then the correct option is B.
What is a function?A function is an assertion, concept, or principle that establishes an association between two variables. Functions may be found throughout mathematics and are essential for the development of significant links.
The functions are given below.
f(x) = 3x² + 5
g(x) = 4x - 2
h(x) = x² - 3x + 1
The expression is given as,
⇒ f(x) + g(x) - h(x)
⇒ (3x² + 5) + (4x - 2) - (x² - 3x + 1)
⇒ 3x² + 5 + 4x - 2 - x² + 3x - 1
⇒ 2x² + 7x + 2
The value of the expression f(x) + g(x) - h(x) will be 2x² + 7x + 2. Then the correct option is B.
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a map has a scale of 1cm to 12km
on a map ,the distance between cardiff and london is 20cm
what is the real distance,in km, between cardiff and london
By using the given scale, we will see that the real distance is 240km
What is the real distance between Cardiff and London?We know that the scale of the map is 1 cm to 12km, so we just need to take the distance in centimeters on the map, and multiply that number by 12 km.
We know that on the map, the distance between Cardiff and London is 20cm, then the real distance is 12km times that, so we will get:
real distance = 20*12km = 240km
The real distance between Cardiff and London is 240 kilometers.
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In Exercises 1-3, decide whether enough information is given to prove that the triangles are congruent using either the SSS Congruence Theorem (Theorem 5.8) or the HL Congruence Theorem (Theorem 5.9). Explain.
The congruency proofs that can be used for each of the triangles are;
1) SSS Congruency
2) None
3) HL Congruence
How to prove the triangle congruency postulate?
1) The SSS congruency postulate states that If three sides of one triangle are congruent to three sides of a second triangle, then the two triangles are congruent.
Now, we see that we are shown 2 corresponding sides that are congruent. However, the third side is automatically congruent using the reflexive property of congruence.
Thus, we conclude that the congruency can be proved using SSS Congruency postulate.
2) In this one, we are given 2 congruent sides and the included angle and so it is SAS Congruency and neither SSS nor HL congruency can be used.
3) The HL congruence Postulate states that if the hypotenuse and leg of one right triangle are congruent to the hypotenuse and leg of another right triangle, then the two triangles are congruent.
In this case, we see that the hypotenuse is congruent to itself by reflexive property of congruence while the one leg is also congruent and so we can use HL Congruence Theorem
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Determine the inverse of the function f(x) = log2(3x + 4) − 5.
f inverse of x is equal to 2 to the power of x plus 3 all over 2
f inverse of x is equal to the quantity x plus 5 end quantity squared minus 4 all over 3
f inverse of x is equal to 2 to the power of the quantity x plus 5 end quantity minus 4 all over 3
f inverse of x is equal to 2 to the power of the quantity x minus 5 end quantity plus 4 all over 3
The inverse function of the function f(x) = log₂(3x + 4) − 5 is y = [2^(x + 5) - 4]/3
How to determine the inverse of the function?From the question, we have the following equation that can be used in our computation:
f(x) = log2(3x + 4) − 5.
Rewrite as
f(x) = log₂(3x + 4) − 5.
Express f(x) as y
This gives
y = log₂(3x + 4) − 5.
Swap the positions of x and y
So, we have the following representation
x = log₂(3y + 4) − 5.
Add 5 to both sides
log₂(3y + 4) = x + 5
So, we have
3y + 4 = 2^(x + 5)
Subtract 4 from both sides
3y = 2^(x + 5) - 4
Divide b y3
y = [2^(x + 5) - 4]/3
Hence, the inverse function is y = [2^(x + 5) - 4]/3
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at a cafeteria the price of a salad depend on it weight in ounces. the graph shows the relationship what is the slope of the line
Answer:
slope = 1/4
Step-by-step explanation:
at a cafeteria the price of a salad depend on it weight in ounces. the graph shows the relationship what is the slope of the line
Find two places where the line neatly intersects the graph. For example, we will use the points: (0 , 0) and (4 , 1)
slope = change in y / change in x
[tex]slope = \frac{(y_{1} -y_{2} )}{(x_{1} -x_{2} )}[/tex]
slope = (0 - 1) / (0 - 4)
slope = -1 / -4
slope = 1/4
Answer: 1/4
Step-by-step explanation:
I just did it
Rewrite 9x + 81 using a common factor.
9x(x + 81)
9x(x + 9)
9(x + 81)
9(x + 9)
Answer:
9 ( x + 9 )
Step-by-step explanation:
81 = 9 × 9
9x = 9 × x
9x + 81 = 9 ( x + 9 )
(Equivalent Algebraic Expressions MC)
25x¹⁰/y⁶ is equivalent to expression to (5x⁻⁵ y³)⁻².
Define expression.Mathematical expressions consist of at least two numbers or variables, at least one arithmetic operation, and a statement. It's possible to multiply, divide, add, or subtract with this mathematical operation. An expression, often known as a mathematical expression, is a finite collection of symbols that are well-formed in accordance with context-dependent principles. Any mathematical statement that includes numbers, variables, and an arithmetic operation between them is known as an expression or algebraic expression. In the phrase 4m + 5, for instance, the terms 4m and 5 are separated from the variable m by the arithmetic sign +.
Given
Expression
(5x⁻⁵ y³)⁻²
25x¹⁰ y⁻⁶
25x¹⁰/y⁶
25x¹⁰/y⁶ is equivalent to expression to (5x⁻⁵ y³)⁻².
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Solve the following inequality.8x-5>13-x
Answer:
x > 2
Step-by-step explanation:
8x - 5 > 13 - x Add x to both sides
8x + x - 5 > 13 - x + x
9x - 5 > 13 Add 5 to both sides
9x - 5 + 5 > 13 + 5
9x > 18 Divide both sides by 9
[tex]\frac{9x}{9}[/tex] > [tex]\frac{18}{9}[/tex]
x > 2
Answer:
x>2
Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable.
Socrates was alive from 469 to 399 B.C.E , Plato from 427 to 347 B.C.E ,Aristotle from 384 to 322 B.C.E. What years were they all alive simultaneously
The function g is defined as follows for the domain given.
g(x)=2x-2, domain = {-3, -2, 1, 5)
Write the range of g using set notation. Then graph g.
Answer:
1. range = {-8,-6,0,8}
2. My graph is attached to this response as a photo.
Step-by-step explanation:
1. ⭐What is the "domain" of a function?
Domain is another word for the x-values⭐What is the "range" of a function?
Range is another word for the y-values⭐What is the "set notation"?
Set notation is a way you can list numbers, such as x-values and y-values. When writing in set notation, you must list the numbers from least to greatest.Therefore, we have to find the corresponding y-values for the given x-values, and then write said y-values in set notation.
To find the corresponding y-values for the given x-values, substitute each given x-value into g(x) and solve for g(x).
✦ When x = -3
[tex]g(x) = 2x-2[/tex]
[tex]g(-3) = 2(-3) -2[/tex]
[tex]g(-3) = -6 -2[/tex]
[tex]g(x) = -8[/tex]
✧ y = -8
________________________________________________________
✦ When x = -2
[tex]g(-2) = 2(-2) -2[/tex]
[tex]g(-2) = -4-2[/tex]
[tex]g(-2) = -6[/tex]
✧ y = -6
________________________________________________________
✦ When x = 1
[tex]g(1) = 2(1) -2[/tex]
[tex]g(1) = 2-2[/tex]
[tex]g(1) = 0[/tex]
✧ y = 0
________________________________________________________
✦ When x = 5
[tex]g(5) = 2(5) -2[/tex]
[tex]g(5) = 10 -2[/tex]
[tex]g(5) = 8[/tex]
✧ y = 8
________________________________________________________
Next, we have to write the y-values in set notation. Make sure to write it from least to greatest.
range = {-8, -6, 0, 8}
Shaina is 55 kg. What is Shaina's weight in grams
Answer: 55000 grams
Step-by-step explanation:
The following questions are about a spherical balloon that is being filled with air such that its radius is increasing at a constant rate of 2 cm/sec.
Part A:
How fast is the surface area increasing when the radius of the sphere is 10 cm? Round to the nearest thousandths.
Part B:
How fast is the volume increasing when the radius is 10 cm? Round to the nearest thousandths.
The surface area increases when the radius of the sphere is 160π cm^2/s
Given that dt/dr =10 cm/s and r=15 cm
Find out dt/ds=?
We know that the surface area of sphere S=4πr^2
dt/ds=4π(2r)
dt/dr=8π(2)(10)
=160π cm^2/s.
Let r, V, and S be respectively the radius, volume, and surface area of the spherical balloon at time t.
∴V=4/3 πr^3 and S=4πr^2
Rate of change of surface area with respect to t
⇒ dt/dS=2
⇒ d/dt=(4πr^2)=2
⇒8πr dt/dr =24
⇒ dr/dt=1/4πr.... (i)
Rate of change of volume of the balloon with respect to t
=dV/dt
=d/dt(4/3πr^3)
= 4/3π⋅3r^2dr/dt
=4πr ^2⋅ dr/dt
=4πr^2.1/4πr ....[From (i)]
r=10
Hence, the volume of the spherical balloon is increasing at the rate of 10cm^3/sec.
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I’ll give BRAINLIEST if correct pls need ASAP
Part A: given the function
g(x) = |x+3| describe the graph of the function including the vertex domain and range
Part B: if the parent function
f(x) = |x| is transformed to
h(x) = |x| - 2 what Transformation occurs from
f(x) to h(x) how are the vertex and range of h(x) affected
Answer:
A) The graph of function g(x) is V-shaped and has the following properties:
The vertex is (-3, 0)The axis of symmetry is x = -3The domain is the set of all real numbers: (-∞, ∞)The range is [0, ∞)B) Translation of 2 units down.
Therefore:
The vertex is (0, -2)The range is [-2, ∞)Step-by-step explanation:
The absolute value parent function, f(x) = |x|, is defined as:
[tex]f(x)=\begin{cases}x \; &\text{if}\;x > 0\\0 \; &\text{if} \; x=0\\-x\; &\text{if}\;x < 0\end{cases}[/tex]
Therefore:
The slope of the line where x > 0 is positive.The slope of the line where x < 0 is negative.Its graph is V-shaped and has the following properties:
The x-intercept and y-intercept are at the origin (0, 0).The vertex is at the origin (0, 0).The axis of symmetry is x = 0 (y-axis).The domain is the set of all real numbers: (-∞, ∞).The range is the set of all real numbers greater than or equal to 0: [0, ∞).Part AGiven absolute value function:
[tex]g(x)=|x+3|[/tex]
The graph of function g(x) is the parent function f(x) translated 3 units to the left.
As the graph has only been translated horizontally, the domain and range are the same as the parent function.
Therefore, the graph of function g(x) has:
Vertex = (-3, 0)Domain = (-∞, ∞)Range = [0, ∞)Part BGiven absolute value functions:
[tex]f(x)=|x|[/tex]
[tex]h(x)=|x|-2[/tex]
The graph of function h(x) is the parent function f(x) translated 2 units down.
As the graph has been translated vertically, the domain is the same as the parent function, but the vertex and range are different.
The y-value of the vertex of h(x) is 2 less than f(x).URGENT!! ILL GIVE BRAINLIEST!!!! AND 100 POINTS!!!
The length of diameter of the base of the cone will be 112 cm.
What is meant by an equation?A mathematical expression with an equals sign is referred to as an equation. Algebra is widely used in equations. When performing calculations but unsure of the precise amount, algebra is used.
A formula that expresses the connection between two expressions on each side of a sign. Typically, it has a single variable and an equal sign.
Equations are mathematical expressions with two algebras flanking the equal (=) sign on either side. This relationship is illustrated by the left and right expressions being equal to one another. Left-hand side equals right-hand side is a basic, straightforward equation.
By using Pythagoras's theorem,
106² = 90² + r²
simplifying the above equation, we get
r² = 106² - 90²
r = √3136
radius = 56 cm.
Then, the diameter will be,
Diameter = 2 × radius
substitute the values in the above equation,
D = 2(56)
D = 112 cm.
Therefore, the correct answer is option b. 112 cm.
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Write the equation of the line that is perpendicular to the x-axis and passes through the point (6,-2).
The slope of a line that is perpendicular to the x-axis is undefined, so we cannot use the standard form of the equation of a line, y = mx + b, where m is the slope of the line. Instead, we can use the point-slope form of the equation of a line, which is given by y - y1 = m(x - x1). In this case, m is undefined, so we can simplify the equation to y = x1 - y1, where x1 and y1 are the coordinates of the point that the line passes through. In our case, this gives us the following equation:
y = 6 - (-2)
= 8
Therefore, the equation of the line that is perpendicular to the x-axis and passes through the point (6,-2) is y = 8.