Describe a series of transformations Matt can perform to decide if the two windows are congruent
Answers
The three transformations—rotations, reflections, and translations—can be combined to produce congruent shapes. The truth is that any pair of congruent shapes can be matched to one another by combining one or more of these three transformations.
Explain transformations.
A point, line, or geometric figure has four different transformations that can be applied to alter its appearance. While the term "Image" refers to the position and final shape of the object, "Pre-Image" refers to the object's shape before transformation.
Given Information
The size and shape of the figures are preserved during stiff transformations, as we already know (reflections, translations, and rotations). Always in harmony with one another is the pre-image.
These transformational skills are all possessed by Matt:
Reflection
The reason a reflection maintains its original form Comparable locations between the pre-image and the picture remain apart from the line of reflection.
Rotations as a Transformation of Congruence
When a figure rotates, it twists. Despite being the same size and shape, the figurine appears to have toppled over. A clock is an excellent example of how the globe rotates in reality. Every hour or every day, the connecting arms of a clock revolve around its axis. The degree of a rotation determines what kind of rotation it is; popular rotations include 90, 180, and 270 degrees. Before spinning around completely and going back to where it started, the figure rotates 360 degrees. the clockwise or counterclockwise direction in which a rotation is made. This data can be used to determine the degree, amount, a revolution's speed and direction.
Congruence translational transformation
When an object or shape is transferred from one location to another without altering its size, shape, or orientation, we refer to the transfer as a movement. A translation, often known as a slide, involves moving every point on an object or shape uniformly and in one direction.
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Related Questions
Given the definitions of f(x) and g(x) below, find the value of (gof)(9). f(x) = -x + 11 g(x) = 3x2 - x + 14
Answers
In this case, we'll have to carry out several steps to find the solution.
Step 01:
Data
f(x) = -x + 11
g(x) = 3x² - x + 14
(gof)(9) = ?
Step 02:
(gof)(x) = 3(-x+11)² - (-x+11) + 14
= 3(x² + 2(-x)(11) + 121) + x - 11 + 14
= 3(x² - 22x + 121) + x - 11 + 14
= 3x² - 66x + 363 + x - 11 + 14
= 3x² - 65x + 366
(gof)(9) = 3(9)² - 65(9) + 366
= 3(81) - 585 + 366
= 243 - 585 + 366
= 24
The answer is:
(gof)(9) = 24
Garcia Co. owns equipment that cost $81,600, with accumulated depreciation of $43,200.
Record the sale of the equipment under the following three separate cases assuming Garcia sells the equipment for (1) $50,600 cash, (2) $38,400 cash, and (3) $33,300 cash.
Answers
(1) $50,600 cash implies that $50,600 - $38,400 = $12,200
Hence gets gain of $12,200.
(2) $38,400 cash implies that $38,400 - $38,400 = $0
Hence No profit no loss.
(3) $33,300 cash implies that $33,300 - $38,400 = - $5,100
Hence loss of $5,100.
Depreciation :-Depreciation is the gross reduction in the book value of an asset due to regular use or wear and tear.
A capital gain occurs when Garcia Co. receives an amount in excess of the book value of the equipment.
If Garcia Co. receives an amount equal to the book value of the equipment, no profit or loss will result from the disposal.
If Garcia Co. receives an amount below the book value of the equipment, it will experience a capital loss.
In the given question cost of equipment is $81,600 with accumulated depreciation of $43,200 so that the book value will be
$81,600 - $43,200 = $38,400.
Now (1) $50,600 cash implies that $50,600 - $38,400 = $12,200
Hence gets gain of $12,200.
For (2) $38,400 cash implies that $38,400 - $38,400 = $0
Hence No profit no loss.
For(3) $33,300 cash implies that $33,300 - $38,400 = - $5,100
Hence loss of $5,100.
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Can someone please explain to me where I did my math wrong and correct me. The answer is supposed to be $1065.00
The problem says: Lonnie Flanagan's weekly gross pay is $1250. Each week she has $64.37 in deductions, plus state tax of 2% of her gross pay, social security taxes of 6.2%, and Medicare taxes of 1.45%. What is her net pay?
I did 1250 - 64.37 = 1185.63
1185.63 (2%) = $23.71 State income Tax
1185.63 (6.2%) = $73.51 Social Security Tax
1185.63 (1.45%) = $17.19 Medicare tax
Then I added the 3 together.
$23.71 + $73.51 + $17.19 = $114.41
Then I subtracted $113.41 from $1250.
1250 - 113.41 = $135.59 net pay.
What did I do wrong?
Answers
The net pay for Lonnie Flanagan is $1065.
How to calculate the net pay?From the information, Lonnie weekly gross pay is $1250 and each week she has $64.37 in deductions, plus state tax of 2% of her gross pay, social security taxes of 6.2%, and Medicare taxes of 1.45%.
Her net pay will be:
= Gross pay - Deduction - Tax - Social security - Medicare
= $1250 - $64.37 - (2% × $1250) - (6.2% × $1250) - (1.45% × $1250)
= $1250 - $64.37 - $25 - $$77.50 - $18.125
= $1065
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At 95% confidence, how large a sample should be taken to obtain a margin of error of 0.042 for the estimation of a population
proportion? Assume that past data are not available for developing a planning value for p*. Round up to the next whole number.
Answers
The sample size should be taken as 545.6 to obtain a margin of error of 0.042 for the estimation of a population proportion.
What is sample size?
The process of deciding how many observations or replicates to include in a statistical sample is known as sample size determination. Any empirical study with the aim of drawing conclusions about a population from a sample must take into account the sample size as a crucial component. The sample size chosen for a study is typically influenced by the cost, convenience, or ease of data collection as well as the requirement that the sample size have adequate statistical power.
As given in the question,
Confidence level is 95% and the margin of error is 0.042
So,
1 - α = 0.95,
α = 0.05,
E = 0.042
planning value (p) = 0.5
To calculate Sample size the formula is:
[tex]n = \frac{p(1-p)(Z_{a/2})^2}{E^2}[/tex]
From the table we can find that:
[tex]Z_{a/2} = 1.96[/tex]
Putting the values given in the question in formula:
[tex]n = \frac{0.5(0.5)(1.96)^2}{(0.042)^2}[/tex]
[tex]n = \frac{(0.25)(1.96)^2}{(0.042)^2}[/tex]
[tex]n = \frac{(0.25)(3.841)}{0.00176}[/tex]
n = 545.6
Hence the sample size is 545.6
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Find the value of x that will make A||B5x + 20A-В.3x + 60x= [?]Enter
Answers
ANSWER:
The value of x is 20
STEP-BY-STEP EXPLANATION:
By properties of the angles we know that these angles are equal, since they are alternative external angles. Thanks to that we can do the following equality to calculate the value of x:
[tex]5x+20=3x+60[/tex]Solving for x:
[tex]\begin{gathered} 5x-3x=60-20 \\ 2x=40 \\ x=\frac{40}{2} \\ x=20 \end{gathered}[/tex]Calculate the perimeter and area of the triangle formed by the coordinates K (-4,-1), L (-2,2), and M (3,-1). Round your answer to two decimal places.
Answers
PERIMETER:
You can calculate the perimeter of a triangle knowing the coordinates, by calculating the distance between every point, as follows:
[tex]\bar{KL}=\sqrt[]{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]Where x1=-4, y1=-1, x2=-2 and y2=2, replace these values:
[tex]\begin{gathered} \bar{KL}=\sqrt[]{((-2)-(-4))^2+(2-(-1))^2} \\ \bar{KL}=\sqrt[]{(2)^2+(3)^2} \\ \bar{KL}=\sqrt[]{4+9}=\sqrt[]{13}=3.61 \end{gathered}[/tex]Now, you have to do the same for the other segments, let's continue with LM:
[tex]\begin{gathered} \bar{LM}=\sqrt[]{(x_3-x_2)^2+(y_3-y_2)^2} \\ x_3=3\text{ and }y_3=-1\text{ by replacing:} \\ \bar{LM}=\sqrt[]{(3_{}-(-2))^2+((-1)-2)^2} \\ \bar{LM}=\sqrt[]{(5)^2+(-3)^2} \\ \bar{LM}=\sqrt[]{25+9}=\sqrt[]{34}=5.83 \end{gathered}[/tex]Same for segment KM:
[tex]\begin{gathered} \bar{KM}=\sqrt[]{(x_3-x_1)^2+(y_3-y_1)^2} \\ \bar{KM}=\sqrt[]{(3-(-4))^2+((-1)-(-1))^2} \\ \bar{KM}=\sqrt[]{(7)^2+(0)^2} \\ \bar{KM}=\sqrt[]{49+0^{}}=\sqrt[]{49}=7 \end{gathered}[/tex]The perimeter can be calculated as KL+LM+KM:
[tex]\begin{gathered} P=\bar{KL}+\bar{LM}+\bar{KM}=3.61+5.83+7 \\ P=16.44 \end{gathered}[/tex]AREA:
The area can be calculated by using the next formula:
[tex]A=\frac{1}{2}\mleft\lbrace\lbrack(x_1\cdot y_2)+(x_2\cdot y_3)+(x_3\cdot y_1)\mright]-\lbrack(x_1\cdot y_3)+(x_3\cdot y_2)+(x_2\cdot y_1)\rbrack\}[/tex]Then, you have to replace the values to find the area:
[tex]\begin{gathered} A=\frac{1}{2}\lbrace\lbrack((-4)_{}\cdot2)+((-2)\cdot(-1))+(3\cdot(-1))\rbrack-\lbrack((-4)\cdot(-1))+(3\cdot2)+((-2)\cdot(-1))\rbrack\} \\ A=\frac{1}{2}\lbrace\lbrack(-8)+(2)+(-3)\rbrack-\lbrack(4)+(6)+(2)\rbrack\} \\ A=\frac{1}{2}\lbrace\lbrack-9\rbrack-\lbrack12\rbrack\} \\ A=\frac{1}{2}\mleft\lbrace\lvert-21\rvert\mright\rbrace \\ A=\frac{21}{2}=10.50 \end{gathered}[/tex]Hello! Please take a look at the picture to see the questions, thank you!
Answers
In the question, we are asked to find the degree and the leading coefficient of the polynomial below
[tex]f(x)=3x^4+2x^3+5x^2+7[/tex]Explanation
The degree of the polynomial is the highest of all the degrees that make up the polynomial. Since each term in the polynomial has a degree we will pick the largest one.
Also, the leading coefficient is the coefficient of the term with the largest degree. Using these concepts, we can derive our answer as.
Answer:
[tex]4,3[/tex]Option A
13 (6x – 5) – x = 13 – 2(x + 1) find x
Answers
Answer:
x = 76/79 or 0.962
Step-by-step explanation:
Edgar drew a scale drawing of the town library. The scale of the drawing was 5
centimeters: 2 meters. The parking lot is 34 meters wide in real life. How wide
is the parking lot in the drawing?
Answers
Answer:
85 cmStep-by-step explanation:
The scale factor is:
5 cm ÷ 2 mFind the width of the parking lot in the drawing:
5 cm ÷ 2 mx cm ÷ 34 mCross multiply and find the value of x:
x = 5*34/2x = 85 cmGiven the equation 5X-10=50 which properties will be used to solve for XA. Adition and subtractionB. Subtraction and divisionC. Adition and division D. Subtraction and Multiplication
Answers
Let's solve for x and see what properties are used
First, add 10 to both sides of the equation
[tex]\begin{gathered} 5x-10=50 \\ 5x-10+10=50+10 \\ 5x=60 \end{gathered}[/tex]Now, divide by 5 on both sides of the equation
[tex]\begin{gathered} \frac{5x}{5}=\frac{60}{5} \\ x=12 \end{gathered}[/tex]Therefore, the correct answer is C. Adition and division
What is the answer to 2(7x-3)+9
Answers
Answer:
14x+3 is the answer I think
The solution to the given equation would be [tex]14x+3[/tex].
Hope this helps!
The equation for a line that has a y-intercept of -8 and passes through (-4,2) is y=-5/2x-8 True False
Answers
1) Let's verify whether that's true or not, plugging in that point into the equa
(-4,2)
[tex]\begin{gathered} 2=\frac{-5}{2}(-4)\text{ -8} \\ 2=10-8 \\ 2=2 \end{gathered}[/tex]Since this is an identity, in other words, the left side is equal to the right side then we can say that's true.
So that's true y=-5/2x-8 is the equation of the line that has in one of its points the y-coordinate y=-8
There is a 5% chance that the mean reading speed of a random sample of 21
second grade students will exceed what value?
Answers
There is a 5% chance that second graders will be faster than 94.597 wpm.
Sample size = 21
standard deviation = 10 wpm
SE = 10/sqrt(21) = 2.18 as a consequence.
Let X be the average reading speed of 21 second-grade students. z = (X - 91)/2.18 Normal(91,2.18) (91,2.18).
If the 95th percentile of a standard normal variable z is 1.65 [5% probability], the outcome is 91 + 1.65 x 2.18 = 94.597.
So there's a 5% chance that the average reading speed of a random sample of 21 second-graders will be faster than 94.597 wpm.
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A rectangular prism has dimensions of 2 cm by 2 cm by 5 cm. What is its surface area? Explain or show your reasoning
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If a rectangular prism has dimensions of 2cm by 2 cm by 5 cm, then the surface area of the rectangular prism is 48 centimeter square
The length of the rectangular prism = 2 cm
The width of the rectangular prism = 2 cm
The height of the rectangular prism = 5 cm
The surface area of the rectangular prism = 2(lw+lh+hw)
Where l is the length
w is the width
h is the height
Substitute the values in the equation
The surface area of the rectangular prism = 2(2×2+2×5+2×5)
= 2(4+10+10)
= 2×24
= 48 centimeter square
Hence, if a rectangular prism has dimensions of 2cm by 2 cm by 5 cm, then the surface area of the rectangular prism is 48 centimeter square
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If the events have the same theoretical probability of happening, then they are called
Answers
Answer:7937
Step-by-step explanation:7596
Evaluate and simplify the expression
when a = 2 and b = 4.
4a - 2(a + b) + 1 = [?]
Answers
Answer:
-3
Step-by-step explanation:
4(a) - 2(a + b) + 1 = [?]
4(2) - 2(2+4) + 1
8 - 4 - 8 + 1
appilcation of bodmas
4 - 8 + 1
- 4 + 1
-
3
The factors of 6 are also the factors of which number? A 5 C 20 B 10 D 30
Answers
Solution:
Factors of a number are defined as numbers that divide another number evenly or exactly without giving any remainder.
Hence,
The factors of 6 are the numbers that can divide 6 without any remainder.
[tex]\text{Factors of 6 =1,2,3,6}[/tex][tex]\begin{gathered} \text{Factors of 5=1,5} \\ \text{Factors of 20=1,2,4,5,10,20} \\ \text{Factors of 10=1,2,5,10} \\ \text{Factors of 30=1,2,3,5,6,10,15,30} \end{gathered}[/tex]From the above, we can deduce that the factors of 6 are also the factors of 30.
The corr
please help! I do not understand and it is due tonight!!!!!!!
Answers
Consider that there are, generally, the following types of angles pairs,
1. Adjacent Angles: Angles that share a common side and are formed on the same vertex.
2. Complementary Angles: Angles that are adjacent and together form a right angle.
3. Supplementary Angles: Angles that are adjacent and whose sum of degree measures is 180 degrees.
a.
The adjacent angles to angle 4 are angles 1 and 3.
There are no complementary angles associated with angle 4.
The supplementary angles to angle 4, are angles 1 and 3.
Thus, the angle pairs that include angle 4 are,
[tex](\angle4\text{ and }\angle1),\text{ }(\angle4\text{ and }\angle3)[/tex]b.
The adjacent angles to angle 5 are angles 6 and 7.
There are no complementary angles associated with angle 5.
The supplementary angles to angle 5, are angles 6 and 7.
Thus, the angle pairs involving angle 5 are,
[tex](\angle5\text{ and }\angle6),\text{ }(\angle5\text{ and }\angle7)[/tex]I'll give brainliest!
Answers
Answer:
x equals to 11!!!
Answer:
11.
Step-by-step explanation:
1.02 x 10^11 = 102,000,000,000
Hope this helps!
Brainliest please, thanks!
The radius, R, of a sphere is 4.8 cm. Calculate the sphere's volume, V. Use the value 3.14 for it, and round your answer to the nearest tenth. (Do not round any intermediate computations.) --0- V = 3 em Х 5 ?
Answers
The formula to calculate the volume of a sphere is given to be:
[tex]V=\frac{4}{3}\pi r^3[/tex]where r is the radius.
From the question, we have the following parameters:
[tex]\begin{gathered} \pi=3.14 \\ r=4.8 \end{gathered}[/tex]Therefore, the volume is calculated to be:
[tex]\begin{gathered} V=\frac{4}{3}\times3.14\times4.8^3 \\ V=463.0 \end{gathered}[/tex]The volume is 463.0 cm³.
rThe number of dogs per household in a neighborhood is given in the probabilitydistribution. Find the mean and the standard deviation. Round to 1 decimal.# of Dogs012.34P(x)0.640.250.060.03.02a) What is the mean rounded to 2 decimal place?b) What is the standard deviation rounded to 2 decimal place?
Answers
N = Number of data
x1...xn = Samples
[tex]s=\sqrt[]{\frac{\sum ^n_{n\mathop=1}(y-\mu)^2}{n-1}}[/tex]Let's calculate first:
[tex]\sum ^n_{n\mathop=1}yn=0.64+0.25+0.06+0.03+0.02=1[/tex]Now:
[tex]\sum ^n_{n\mathop=1}yn^2=(0.64)^2+(0.25)^2+(0.06)^2+(0.03)^2+(0.02)^2=0.477[/tex]So:
[tex]s=\sqrt[]{\frac{0.477-\frac{(1)^2}{5}}{5-1}}=0.2631539473\approx0.3[/tex]
Cuál es la probabilidad de obtener exactamente 5 caras en 10 lanzamientos de una moneda?
Answers
The probability of getting exactly 5 heads in 10 tosses of a coin 24.6%
What is Probability ?
The area of mathematics known as probability deals with numerical representations of the likelihood that an event will occur or that a statement is true. An event's probability is a number between 0 and 1, where, roughly speaking, 0 denotes the event's impossibility and 1 denotes certainty.
Ten times are spent flipping coins.
Total number of results = 2¹⁰ = 1024
C(10, 5) = 252 is the total number of favorable outcomes.
Probability is
252/1024,
which equals :
=0.24, or
=24.6%.
Therefore, the chance of getting exactly 5 "heads" out of a possible 10 is 0.246, or 24.6%.
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1. The data set represents the number of cars in a town given a speeding ticketeach day for 10 days.2 4 5 5 7 7 8 8 8 121. What is the median? Interpret this value in the situation.*
Answers
ANSWER:
7
STEP-BY-STEP EXPLANATION:
We have the following data:
[tex]2,4,5,5,7,7,8,8,8,12[/tex]The median is the data value that separates the upper half of a data set from the lower half. Therefore:
In this case, being even, the two data are half, but since the value is the same, that is, 7, the median is equal to 7.
The interpretation of this value is in the middle of the 10 days (days 5 and 6), 7 would be the number of cars in a town given a a speeding ticket.
Figure out how many offspring there would be for the fifth and sixth generations using the equation
Answers
Explanation
We are given the following:
The table above models the function:
[tex]\begin{gathered} f(x)=a(4)^x \\ where \\ a=initial\text{ }value\text{ }(when\text{ }the\text{ }generation)=0 \\ x=generation \end{gathered}[/tex]We are required to determine how many offspring there would be for the fifth and sixth generations using the equation.
This is achieved thus:
[tex]\begin{gathered} \text{ Offspring:} \\ Fifth\text{ }generation\to a(4)^x \\ where \\ a=6 \\ x=5 \\ F\imaginaryI fth\text{ }generat\imaginaryI on\to6(4)^5=6144 \end{gathered}[/tex][tex]\begin{gathered} Sixth\text{ }generation\to a(4)^x \\ where \\ a=6 \\ x=6 \\ S\imaginaryI xth\text{ }generat\imaginaryI on\to6(4)^6=24576 \end{gathered}[/tex]Hence, the answers are:
[tex]\begin{gathered} 5th\text{ }generation=6144 \\ 6th\text{ }generation=24576 \end{gathered}[/tex]Which equation is true when A.n = 1.2 B.
1.2n=10 n+1=1.2 C. 5+n=6.2 D. 10n=1.2
Answers
The true equation is 5 + n = 6.2.
Here we have to find the equation for which n = 1.2.
So the first equation is
10n = 1.2
So for this, we get the value of n as:
n = 1.2/10
= 0.12
which is not equal to 1.2.
So it is not correct
The second equation is:
n + 1 = 1.2
n = 0.2
which is not equal to 1.2
So it is also not correct.
The third equation is:
5 + n = 6.2
n = 6.2 - 5
= 1.2
So it is correct.
The fourth equation is:
1.2n = 10
n = 10/1.2
= 8.33
Here n is not equal to 1.2
So it is also correct.
Therefore the correct equation is 5 + n = 6.2.
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A football team was able to run the ball for 8 yards on their first play. On the second play they lost 12 yards. The third play they lost another 11 yards. What was their total yards they gained?
Answers
The total yards gained or lost is the algebraic sum so the resultant yards is -15 yards thus they lose 15 yards.
What is the arithmetic operator?Arithmetic operators are four basic mathematical operations in which summation, subtraction, division, and multiplication involve.,
Subtraction = Minus of any two or more numbers.
Summation = addition of two or more numbers or variable
Let's consider all gained yards by positive (+) and all lost yards by negative (-).
Given that,
In the first play = +8 yards (gain)
In second play = -12 yards (lost)
In the third play = 11 yards (Lost)
So total yards = +8 - 12 - 11 = -15 (Lost)
Therefore, the football team lost 15 yards.
Hence "The total yards gained or lost is the algebraic sum so the resultant yards is -15 yards thus they lose 15 yards".
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O GRAPHS AND FUNCTIONSFinding values and intervals where the graph of a functioning is..
Answers
a.
From the graph we notice that when x=-1 the value of the function is zero; therefore:
[tex]f(-1)=0[/tex]and it is not negative.
b.
The function is positive when its graph is above the x-axis. We notice that this happens in two regions of the graph:
From -4 to -3
From -1 to 4
Therefore, the function is positive in:
[tex]\lbrack-4,-3)\cup(-1,4)[/tex]c.
The function is zero when the graph intersect the x-axis; from the graph we have that the function is zero for:
[tex]\begin{gathered} x=-3 \\ x=-1 \\ x=4 \end{gathered}[/tex]Artrigerator contains 5 cans of diet soda and 8 cans of regular soda. If three cans of soda are randomly selected without replacement, determine the probability that all can selected are diet soda. Use combinations to determine theprobabilityThe probability that all can selected are diet soda is(Type an integer or a simplified fraction)
Answers
The total number of cans in the refrigerator is 5 + 8 = 13
The number of diet soda cans is 5 while the number of regular soda cans is 8
If three cans are selected, the probability that the can is a diet soda can is
5/13
Since it was not replaced, the number of diet soda cans left would be 4 and the total number of cans left would be 12. The probability that the next selected can is a diet can is
4/12 = 1/3
Since it was not replaced, the number of diet soda cans left would be 3 and the total number of cans left would be 11. The probability that the next selected can is a diet can is
3/11
Thus, the probability that the three selected cans are diet soda cans is
5/13 * 1/3 * 3/11 = 5/143
= 0.035
the probability that the three selected cans are diet soda cans is 0.035
da can
r
A composite figure is created using asquare and a semicircle. What is the area ofthe figure?12 in200.52202.52204.52206.52
Answers
The area of the composite figure will be the sum of the area of the square and the area of the semicircle. The formula for determining the area of a square is expressed as
Area = length^2
From the diagram,
length = 12
Area of square = 12^2 = 144
The formula for determining the area of a semicircle is expressed as
Area = 1/2 * pi * radius^2
Radius = diameter/2
The diameter of the semicircle is 12. Thus,
radius = 12/2 = 6
pi = 3.14
Area of semicircle = 1/2 * 3.14 * 6^2 = 56.52
Area of composite figure = 144 + 56.52 = 200.52 in^2
The first option is the correct answer
need help due tommorow
Answers
Finding the ratio of
a)1:9
b)2 : 7
c) 2 : 5
What is Ratio?
A ratio indicates how often one number contains another number. For example, if a fruit bowl contains 8 oranges and 6 lemons, the ratio of oranges to lemons is 8 to 6. Similarly, the ratio of lemons to oranges is 6:8 and the ratio of oranges to whole fruit is 8:14.
Given,
Total no. of students = 42
a) Students who prefer punk to students who prefer hip-hop
No. of students in punk = 2
No. of students in hip-hop = 18
The Ratio will be,
punk : hip-hop = 2:18
= 1:9
b) Students who prefer rock to total no. of students that are surveyed
No. of students in rock = 12
Total no. of students = 42
The Ratio will be,
rock : total students = 12 : 42
= 2 : 7
c) Students who prefer rock or classic rock to students who prefer all music
No. of students in rock = 12
Total no. of students who likes other music = 42 - 12
= 30
The Ratio will be,
rock : total students with different music = 12 : 30
= 2 : 5
Hence, The ratio comparison in three different way
a)1:9
b)2 : 7
c) 2 : 5
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