Answer:
The scale factor to dilate ABCD to WXYZ is 1/sqrt(2) or (sqrt(2))/2.
The scale factor to dilate ABCD to WXYZ is k = 2.
Given data:
To find the scale factor between two similar figures, compare the corresponding side lengths.
The perimeter of triangle BCD is 16 and the perimeter of triangle XYZ is 32. Since corresponding sides of similar triangles are proportional, the ratio of their perimeters to determine the scale factor.
The scale factor is calculated by dividing the perimeter of triangle XYZ by the perimeter of triangle BCD:
Scale factor = Perimeter of XYZ / Perimeter of BCD
Scale factor = 32 / 16 = 2
Hence, the scale factor to dilate pyramid ABCD to WXYZ is 2.
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Annie is making a scale model of a greenhouse for a class project. She measures the greenhouse and finds it is 6 m wide and 8 m long Her model of the greenhouse is 12 cm wide. How long is the model
solution-
Actual measure= 6m wide ie.600cm wide
her model is =12cm wide
so scale factor =600/12= 50
so length will be =800/50 =16cm
hence gher model will be 16cm long
HELP PLS !!!!!!!!!!!!
Answer: the right one is d
Step-by-step explanation:
pythagorean theorem
find the value of x
Answer:
x = 35.8
Step-by-step explanation:
[tex]x = 2 \sqrt{ {14}^{2} - {11.2}^{2} } + 19 [/tex]
[tex]x = 2(8.4) + 19 [/tex]
[tex]x = 16.8 + 19 = 35.8[/tex]
A1=4,an+1=3an+12. Find the first five terms of the given sequence
What are the dimensions of a rectangle with an area of 48 square centimeters and a perimeter of 28 centimeters?
Step-by-step explanation:
the area of a rectangle is
length × width
the perimeter of a rectangle is
2×length + 2×width
so,
length×width = 48 cm²
2×length + 2×width = 28 cm
length + width = 14 cm
length = 14 - width
we use this in the first equation :
(14 - width) × width = 48
14×width - width² = 48
-width² + 14×width - 48 = 0
a quadratic equation
ax² + bx + c = 0
has the general solution
x = (-b ± sqrt(b² - 4ac))/(2a)
in our case
x = width
a = -1
b = 14
c = -48
width = (-14 ± sqrt(14² - 4×-1×-48))/(2×-1) =
= (-14 ± sqrt(196 - 192))/-2 =
= (-14 ± sqrt(4))/-2 =
= (-14 ± 2)/-2 =
= 7 ± 1
width1 = 7 + 1 = 8 cm
width2 = 7 - 1 = 6 cm
length1 = 14 - width1 = 14 - 8 = 6 cm
length2 = 14 - width2 = 14 - 6 = 8 cm
so, we see, one of them must be 8 cm, and the other 6 cm.
let's length be the longer side, so
length = 8 cm
width = 6 cm
102m 25cm+15m 75cm=
help me
Answer:
118m
Step-by-step explanation:
102.25m+15.75m=118m
Please help me on this question
Step-by-step explanation:
For a RIGHT triangle, you can use Pythagorean Theorem to calculate the length of the hypotenuse:
Hypotenuse^2 = leg1 ^2 + leg2 ^2
Hypotenuse^2 = 3^2 + 16 ^2
Hypotenuse ^2 = 265 sqrt both sides
hypotenuse = 16.3 m
Now the perimeter is just all three sides added together:
3 + 16 + 16.3 = 35.3 m
Answer:
≈ 35,3 m
Step-by-step explanation:
First we need to find the third side of the right-angled triangle by the Pythagorean theorem:
[tex] {16}^{2} + {3}^{2} = 265[/tex]
[tex]265 > 0[/tex]
[tex]the \: third \: side \: is \: \sqrt{265} [/tex]
And now we can find the perimeter:
P = 16 + 3 + √265 ≈35,3 (m)
find the size of angle xyz
Answer:
the answer is 23 cm
Step-by-step explanation: just a guess
As an experiment, a charity decides to use SMART to determine a shortlist from the seven applicants who have
applied for the post of Regional Officer for the Western Region. The main criteria which will be used to
compare candidates are: salary they would expect (SALARY), their experience of charity work (CHARITY EXP),
their managerial experience (MANAGEMENT EXP), their educational qualifications (EDUCATION), their
apparent commitment to the charity's work (COMMITMENT) and the quality of the ideas they put forward on
the form (IDEAS).
(a) Discuss if the weights of the attributes are appropriate. If so, why do you think so? If not, why do you
think the weights are not appropriate? (You don't need to discuss whether the attributes are
appropriate. Only focus on the "weights". This is your own opinion and subjective. You don't need
references for this.)
The personnel manager ranked all the criteria, except salary, in order of importance and then assigned weights
as follows:
COMMITMENT
MANAGEMENT EXP
IDEAS
CHARITY EXP
EDUCATION
Candidate A's aggregated score is 50.
(You don't need to worry about how 50 was calculated.)
The other candidates' aggregated scores are found below.
100
70
65
55
10
The weights assigned to attributes seem appropriate based on the personnel manager's ranking according to of importance. The weights reflect the relative importance of each attribute in the decision-making.
Why is commitment given the highest weight?For example, COMMITMENT is given the highest weight, indicating that the charity places a lot of value on a candidate's commitment to their work. MANAGEMENT EXP and IDEAS are given the next highest weights, indicating that the charity values a candidate's ability to manage and come up with innovative ideas.
On the other hand, EDUCATION is given the lowest weight, indicating that the charity places less emphasis on formal qualifications than on other attributes such as experience and commitment.
The aggregated score for Candidate A is 50, but we don't have any information about the scale or method used to calculate the scores. Therefore, we cannot comment on whether the score is good or bad or whether Candidate A is the best choice for the job.
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PLEASE HELP!!
Dalia buys 20 collectible gems per month. Grace sells 10 gems from her collection of 120 each month. When will Dalia have more gems than Grace? Show your work.
After 4 months, Dalia will have the same number of gems as Grace, and after that, she will have more.
To determine when Dalia will have more gems than GraceWe need to find out when the number of gems Dalia has will exceed the number of gems Grace has.
Let's represent the number of months by "t".
After t months, Dalia will have 20t gems.
After t months, Grace will have 120 - 10t gems.
To find when Dalia will have more gems than Grace, we can set up an inequality:
20t > 120 - 10t
Simplifying the inequality, we get:
30t > 120
Dividing both sides by 30, we get:
t > 4
This means that Dalia will have more gems than Grace after 4 months.
To check our answer, we can substitute t = 4 into the expressions we found earlier:
After 4 months, Dalia will have 20t = 20(4) = 80 gems.
After 4 months, Grace will have 120 - 10t = 120 - 10(4) = 80 gems.
So, we can see that after 4 months, Dalia will have the same number of gems as Grace, and after that, she will have more.
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You are catering a wedding for 350 people. You predict that each guest will drink 2X5ounce glasses of wine. The wine is purchased at $120.00 per case and there is 9 liters per case.
How many cases will you need?
How much will it cost per guest?
Answer:
Step-by-step explanation:
350x2x5=3500
Write an exponential function for the graph that passes through the points (0, –3) and (4, –48)
Answer:
y = (-3)2^x
Step-by-step explanation:
We can substitute the two points in the equation y = abˣ and we get two equations. By solving the two equations, we can find the values of a and b.
Substitute (0, -3) in the equation y = abˣ
-3 = a * b⁰
-3 = a * 1
[tex]\boxed{\bf a = -3}[/tex]
Substitute (4, -48) in the equation y =abˣ
-48 = (-3) * b⁴
[tex]\dfrac{-48}{-3}=b^4\\\\ b^4 = 16\\\\b^4 = 2^4\\\\ \boxed{\bf b = 2}[/tex]
Exponential function:
[tex]y = (-3)2^x[/tex]
1. Determine the volume of the rectangular prism in two different ways.
3/4 ft
3/8ft
3/4ft
By first method, he volume of the rectangular prism is (9/32) cubic feet.
By second method, the volume of the rectangular prism is (27/64) cubic feet, which agrees with the volume calculated using the first method.
What is volume?Volume is a measurement of the amount of space that an object occupies. It is the three-dimensional space occupied by an object. Volume is typically measured in cubic units such as cubic meters, cubic centimeters, cubic feet, and so on.
We can determine the volume of the rectangular prism in two different ways using the formula:
Volume = Length x Width x Height
First Method:
In the first method, we simply substitute the given dimensions of the rectangular prism into the formula and calculate the volume:
Volume = (3/4) ft x (3/8) ft x (3/4) ft
Volume = (9/32) ft³
Second Method:
In the second method, we can use the fact that the rectangular prism can be divided into 4 smaller rectangular prisms, each with dimensions (3/4) ft x (3/8) ft x (3/16) ft. We can calculate the volume of one of these smaller prisms and then multiply by 4 to get the total volume:
Volume of one smaller prism = (3/4) ft x (3/8) ft x (3/16) ft
Volume of one smaller prism = (27/256) ft³
Total volume = 4 x Volume of one smaller prism
Total volume = 4 x (27/256) ft³
Total volume = (27/64) ft³
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due today, ill mark brainliest!!!
Isla flipped a coin 30 times. The coin landed heads up 9 times and tails up 21 times.
Part A: Based on the results, what is the experimental probability of the coin landing heads up? Show your work. (5 points)
Part B: What is the theoretical probability of the coin landing heads up? Show your work. (5 points)
Answer:
Part A.) 0.3 or 30%
Part B.) 0.5 or 50%
She flipped the coin 30 times.
She flipped it 9 times for heads.
She flipped it 21 times for tails.
Part A.)
9/30
When you simplify that you get 3/10.
Which is 0.3 or 30%
Part B.)
So there are only 2 sides of a coin.
Heads or tails, So its a 50 - 50
For One side it is 50/100
Which simplifies to 1/2
Or 0.5 which is 50%
Step-by-step explanation:
factor the trinomial
Answer:
(x - 4)(x+8)
(Hopefully this helps, and if you can please give me brainliest)
QUESTION 5..... [1.5 marks]
The following data set represents the score distribution for the Final Exam in MATH 146:
55, 56, 57, 58, 59, 60, 60, 61, 63, 65, 69, 71, 78, 78, 79, 79, 82, 82, 83, 83
Find the 85th percentile.
Solution. Please write your detailed solution here:
The score that corresponds to the 85th percentile is 82, since it is greater than or equal to 85% of the scores in the data set.
How to calculate the percentileThe formula is: percentile = (number of scores below the percentile / total number of scores) x 100%
We want to find the score that corresponds to the 85th percentile, which means that 85% of the scores in the data set are below this score
percentile = 85%
total number of scores = 20
number of scores below the percentile = (85% / 100%) x 20 = 17
This means that we need to find the score that is greater than or equal to 17 of the 20 scores in the data set.
Next, we need to rank the scores in order from lowest to highest:
55, 56, 57, 58, 59, 60, 60, 61, 63, 65, 69, 71, 78, 78, 79, 79, 82, 82, 83, 83
The score that corresponds to the 85th percentile is 82, since it is greater than or equal to 85% of the scores in the data set.
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20) Jamie has 1.04 meters of wire to make bracelets. If each bracelet requires 13 cm, how
many bracelets can she make?
Therefore, Jamie can make 8 bracelets with 1.04 meters of wire.
What is perimeter?Perimeter is a measure of the distance around the edge of a two-dimensional object, such as a polygon, a circle, or a rectangle. It is the total length of all the sides or edges that make up the shape. In simple terms, perimeter is the length of the boundary of a flat object, such as the circumference of a circle, or the sum of the lengths of the sides of a polygon. It is usually measured in units such as meters (m), centimeters (cm), feet (ft), or inches (in).
Here,
Jamie has 1.04 meters of wire, which is equivalent to 104 cm (since 1 meter = 100 cm).
Each bracelet requires 13 cm of wire, so the number of bracelets she can make is:
Number of bracelets = Total length of wire ÷ Length of wire per bracelet
Number of bracelets = 104 cm ÷ 13 cm/bracelet
Number of bracelets = 8
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Also help me with this asap
What is the distributive property of 8(3+4-2)
Step-by-step explanation:
8 ( 3 + 4 - 2) = 8 x 3 + 8 x 4 - 8x 2 < ===== distributive property
Write each expression without the absolute value symbol. |3x+12|
In this case, 3x plus 12 is 3x plus 12. in this situation, [tex]|3x + 12|[/tex] equals -(3x + 12) for expression.
For the expression:
Two vertical bars serve as the absolute value symbol in mathematics, which is used to represent a number's distance from zero regardless of its sign. In other words, a number's absolute value is never negative.
The number 3x + 12's absolute value is denoted by the expression |3x + 12|. We must take into account two scenarios in order to formulate this expression without the absolute value symbol: the non-negative case for 3x + 12 and the negative situation for 3x + 12.
Example 1: 3x + 12 ≥ 0
Because 3x + 12 is not negative, we may simply remove the absolute value symbols since they are not necessary. In this case, 3x plus 12 is 3x plus 12.
Example 2: 3x + 12 < 0
When 3x + 12 is a negative number, we can multiply it by -1 to get the absolute value. This is so because a negative number's absolute value is the same as its positive equivalent. As a result, in this situation, |3x + 12| equals -(3x + 12).
In light of the aforementioned examples, the phrase |3x + 12| can be expressed as follows:
[tex]|3x + 12| =\\{ 3x + 12 if 3x + 12 ≥ 0\\\\{ -(3x + 12) if 3x + 12 < 0[/tex]
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a dilation of P centered at A maps P onto B. What dilation constant is needed?
The dilation is an enlargement, then k > 1. If the dilation is a reduction, then 0 < k < 1.
What is dilation constant?The dilation constant, also known as the scale factor, represents the amount by which the original figure is enlarged or reduced in the dilation.
Equation:We can find the dilation constant by using the distance formula. Let the coordinates of point P be (x,y) and the coordinates of point A be (a,b). Let the coordinates of point B be (u,v), where u and v are unknown.
The distance from A to P is:
d(AP) = √[(x-a)² + (y-b)²]
The distance from A to B is:
d(AB) = √[(u-a)² + (v-b)²]
Since the dilation is centered at A and maps P onto B, we know that the ratio of the distances is the dilation constant:
d(AP)/d(AB) = k
Substituting the expressions for the distances and simplifying, we get:
√[(x-a)² + (y-b)²] / √[(u-a)² + (v-b)²] = k
Squaring both sides, we get:
[(x-a)² + (y-b)²] / [(u-a)² + (v-b)²] = k²
Since we know the coordinates of P and A, we can substitute these values into the equation and solve for k. Once we have k, we can use it to find the coordinates of B.
Note that if the dilation is an enlargement, then k > 1. If the dilation is a reduction, then 0 < k < 1.
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34.59 + ? = 136.926 i need whyyy
[tex] \: \: \: \: \: \texttt{34.59 + \boxed{\texttt\red{102.336}}} \\ \texttt{ = 136.926}[/tex]
[tex] \: [/tex]
━━━━━━━━━━━━━━━━━━━━━━━
hope it helps:)
help please willl mark brainliest
A possible value of a is a > 0 , b = 0 , c < 0
What is Linear equation in two variable ?A linear equation is an algebraic equation of the form y=mx+b. involving only a constant and a first-order (linear) term, where m is the slope and b is the y-intercept. Occasionally, the above is called a "linear equation of two variables," where y and x are the variables.
From this diagram we can observe the following:
The diagram opens upwards, which means that the coefficient 'a' is positive. The vertex of the parabola is on the y-axis, which means that the x-coordinate of the vertex is 0. This gives us evidence that the equation of the parabola is f(x) = a(x-0 )²c , which simplifies to f(x) = ax² c. It can also be observed that the y-intercept of the graph is c, which means that the constant term is c. Based on the above observations, we can derive the possible values of a, b and c as follows:
A possible value of a is a > 0 because the graph opens up. A possible value of b is b = 0 because there is no horizontal displacement in the parabola. The possible value of C is c < 0; 0 because the y-intercept is negative. Note that c can be 0, but it cannot be positive because the graph does not intersect the x-axis.
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Suppose you will need $12,000 in 3 years. How much do you need to invest per month in order to have $12,000 if money earns an annual rate of 6% compounded monthly?
Assumptions for above case:
1-Equal payments are made monthly.
2-Total amount deposited throughout the year are compounded by end of the year.
3-Annual interest is 6%
4-Total Amount invested plus interest at maturity are reinvested the following year.
Given above, if you create a table in excel for those calculations, you would get $296.330 /month which amounts to $12,000.00 in 3 years approximately.
Year 1 = $3,555.96 Pre-interest =>$3769.32 Post 6% interest
Year 2 = $7,325.28 Pre-interest =>$7,325.28 Post 6% interest
Year 3= $11,320.75 Pre-interest =>$12,000.00 Post 6% interest.
The way to calculate pre interest for each year is just $296.330*12=$3555.96
Afterwards just multiply by the annual interest rate to get the full amount invested + interest (6%) =>$3555.96*(1.06)= $3769.32
Then As per step 1, add another 3555.96 and multiply it all by 1.06, to get 305.06
x = $305.06
The table below shows the amount of money paid for a rent by a sample
of 24 people in Wenatchee.
1500
1500
1250
900
350-664
665-979
1350
1150
980-1294
1295-1609
1610-1924
1925-2239
2240-2554
350
1500
610-
2550
Draw an ogive for the data by completing the following table based on seven classes:
Class limits
Class
Class Boundaries
Midpoint
1200
900
960
495
600
800
850
1400
890
1200
900
1100
1325
690
Frequency Cumulative Frequency
Solution. Please write your detailed solution here:
From the ogive, we can see that 10 people paid a rent of less than or equal to $1,000, and 19 people paid a rent of less than or equal to $1,700.The midpoint of class with highest frequency (900-1199) is $1,050.
what is Data?In mathematics, data can be used to identify patterns, trends, and relationships, and to test hypotheses.
To draw an ogive for the given data, we first need to organize the data into classes and calculate their corresponding frequencies and cumulative frequencies. Based on the range of the data, we can choose the following seven classes:
Class 1: 300-599
Class 2: 600-899
Class 3: 900-1199
Class 4: 1200-1499
Class 5: 1500-1799
Class 6: 1800-2099
Class 7: 2100-2399
Using these classes, we can complete the following table:
Class Limit Class Boundary Midpoint Frequency Cumulative Frequency
300-599 299.5-599.5 449.5 1 1
600-899 599.5-899.5 749.5 4 5
900-1199 899.5-1199.5 1049.5 5 10
1200-1499 1199.5-1499.5 1349.5 4 14
1500-1799 1499.5-1799.5 1649.5 5 19
1800-2099 1799.5-2099.5 1949.5 1 20
2100-2399 2099.5-2399.5 2249.5 4 24
To draw the ogive, we plot the cumulative frequencies against the upper class boundaries. We start at the first lower class boundary and plot a point with a cumulative frequency of zero. Then we plot the cumulative frequency of each subsequent class at the upper class boundary of that class. We then connect the points with smooth curve.
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URGENT!! ILL GIVE
BRAINLIEST! AND 100 POINTS
Which of these tables DO NOT represent a Linear function? Check all that apply.
Answer:
Table 4
Step-by-step explanation:
The first table is a linear function, with the points of (-240), (-72), (0), (2), and (6).
The second table is also a linear function, with the points of (-768), (-16), (0), (48), and (384)
The third table is a linear function, with the points of (-48), (-6), (0), (6), and (48)
The fourth table is the only one that is a linear function because the first four points are (0) and the last one is (-12)
What is the slope of a line that is perpendicular to the line represented by the equation x – y = 8? 1 −1 8
keeping in mind that perpendicular lines have negative reciprocal slopes, let's check for the slope of the equation above
[tex]x-y=8\implies -y=-x+8\implies y=\stackrel{\stackrel{m}{\downarrow }}{1}x-8\impliedby \begin{array}{|c|ll} \cline{1-1} slope-intercept~form\\ \cline{1-1} \\ y=\underset{y-intercept}{\stackrel{slope\qquad }{\stackrel{\downarrow }{m}x+\underset{\uparrow }{b}}} \\\\ \cline{1-1} \end{array} \\\\[-0.35em] ~\dotfill[/tex]
[tex]\stackrel{~\hspace{5em}\textit{perpendicular lines have \underline{negative reciprocal} slopes}~\hspace{5em}} {\stackrel{slope}{ 1 \implies \cfrac{1}{\underline{1}}} ~\hfill \stackrel{reciprocal}{\cfrac{\underline{1}}{1}} ~\hfill \stackrel{negative~reciprocal}{-\cfrac{\underline{1}}{1} \implies \text{\LARGE -1}}}[/tex]
the accompanying observations are numbers of defects in 25 1-square-yard specimens of woven fabric of a certain type: the data has been given so that it can be copied into r as a vector.
Here is a vector of observations representing the number of defects in 25 1-square-yard specimens of a particular type of woven fabric. This data is provided to facilitate its entry into R.
The data provided is the number of defects in 25 1-square-yard specimens of woven fabric of a particular type. This data can be used to analyze the quality of the fabric and identify any potential issues with the manufacturing process.
It is important to copy this data into R as a vector so that it can be easily analyzed using various statistical techniques. In R, vectors are used to store multiple values of the same type, and they can be used to perform mathematical operations and statistical analyses. Once the data is in R, various descriptive statistics, such as the mean, median, and standard deviation, can be calculated to gain insights into the quality of the fabric and identify any potential trends or patterns in the data.
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Can I please get some help finding the measure of angle LNO?!?!? Please answer fast :)
Answer:
40°
Step-by-step explanation:
You want the measure of ∠LNO, marked as y°, given the two vertical angle pairs {100°, (x -y)°} and {y°, 2/7x°}.
Vertical anglesVertical angles have the same measure, so we can write the equations ...
100° = (x -y)°y° = 2/7x°SolutionWe want the value of y, so it makes sense to solve these equations using a method that eliminates x. Rewriting the second equation to solve for x, we have ...
x° = 7/2y°
Substituting this into the first equation gives ...
100° + (7/2y -y)°
100° = 5/2y°
2/5(100) = y° = 40°
The measure of ∠LNO is 40°.
Please solve the following
For the given graph of the function: Period = π, Domain = [0,π], Range = (-∞, + ∞), Asymptotes at x = 0.
Explain about the period of function:Period:
A function is referred to as periodic if it repeats a pattern, such as sine or cosine. The shortest interval with exactly one instance of the repeating pattern is said to have a period, which is its length.
Period = π
Domain:
The range of values that we are permitted to enter into our function is known as the domain of a function. The x values for a function like f make up this set (x).
Domain = [0,π]
Range:
A function's range is the collection of values it can take as input. After we enter an x value, the function outputs this sequence of values.
Range = (-∞, + ∞)
Asymptotes:
The graph of the a function approaches an asymptote as either x or y approach positive or negative infinity, respectively.
Asymptotes at x = 0.
As a result, whenever x = 0, the function possesses a vertical asymptote.
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