Answers
The vertices of A'B'C' if A(0, 10), B(8, 6), C(4, 2) is dilated by a scale factor of 2 are;
C. A'(0, 20), B'(16, 12), C'(8, 4)Which method can be used to find the vertices of A'B'C'?Given that triangle ABC is dilated by a scale factor of 2, we have;
A'B' = 2 × AB
A'C' = 2 × AC
B'C' = 2 × BC
Length of AB = √((8-0)^2 + (6-10)^2) = 4•√5
Length of AC = √((4-0)^2 + (2-10)^2) = 4•√5
Length of BC = √((8-4)^2 + (6-2)^2) = 4•√2
By multiplying the given coordinates by the scale factor, we have;
A' = 2 × (0, 10) = (0, 20)
B' = 2 × (8, 6) = (16, 12)
C' = 2 × (4, 2) = (8, 4)
A'B' = √((16-0)^2 + (12-20)^2) = 8•√5
A'C' = √((8-0)^2 + (4-20)^2) = 8•√5
B'C' = √((16-8)^2 + (12-4)^2) = 8•√2
Therefore when we have;
A'(0, 20), B'(16, 12), C'(8, 4), we get;
A'B' = 2 × ABA'C' = 2 × ACB'C' = 2 × BCThe correct option is therefore;
C. A'(0, 20), B'(16, 12), C'(8, 4)Learn more about finding the distance between points on the coordinate plane here:
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Related Questions
please help! thankssss
find the difference (2x^2+6x-11)-(5x^2-
A.
7 x 2 + 7 x - 18
B.
- 3 x 2 + 5 x - 4
C.
7 x 2 + 5 x - 4
D.
- 3 x 2 + 7 x - 18
Answers
he difference between the expressions (2x² + 6x – 11) and (5x² – x + 5) will be –3x² + 7x – 18. Then the correct option is D.
What is subtraction?It simply implies subtracting something from an entity, group, location, etc. Subtracting from a collection or a list of ways is known as subtraction.
The expressions are given below.
(2x² + 6x – 11) and (5x² – x + 5)
Then the difference between the expressions (2x² + 6x – 11) and (5x² – x + 5) will be
⇒ (2x² + 6x – 11) - (5x² – x + 5)
⇒2x² + 6x – 11 – 5x² + x – 5
⇒ –3x² + 7x – 18
Then the correct option is D.
The complete expression is given below.
(2x² + 6x – 11) and (5x² – x + 5)
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cuantos parque solares hay en china
Answers
The translation of the question is:
What are solar parks?The solar park is a concentrated zone of development of solar power generation projects and provides developers an area that is well characterized, with proper infrastructure and access to amenities and where the risk of the projects can be minimized.
How many solar parks are there in China?
Huanghe Hydropower Hainan Solar Park – 2.2GWTengger Desert Solar Park – 1.55GW Datong Solar Power Top Runner Base – 1.1GWYanchi Ningxia Solar Park – 1GWLongyangxia Dam Solar Park – 850MWLearn more about solar energy here:
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In the diagram of AABC shown below, DE || BC.
B
A
3) 3
4) 15
E
If AB= 10, AD = 8, and AE = 12, what is the
length of EC?
1) 6
2) 2
C
dd or create
k as done
nments
As
to Susan Guha
Answers
Answer:
3
Step-by-step explanation:
AD/AB = AE/AC
8/10 = 12/AC
AC = 12(10/8) = 15
EC = 15 - 12 = 3
Which numbers are perfect squares? Check all that apply. 02 016 018 032 0 044 094 100
Answers
Answer:
16, 100
Step-by-step explanation:
A perfect square is a number that can be achieved by multiplying a number by itself.
Example: 100 = 10 x 10, so it is a perfect square
2 is not a perfect square because it has no factors that can be multiplied with each other to equal 2. An easy way to check is to use the square root function on your calculator.
If the result is a whole number then it's a perfect square.
Juan owns 7 pairs of pants, 3 shirts, 5 ties, and 6 jackets. How many different outfits can he wear to school if he must wear one of each item?
Answers
To solve this problem, just use multiplication.
[tex]7\text{ pairs of pants}*3\text{ shirts}*5\text{ ties}*6\text{ jackets}=\large\boxed{630\text{ outfits}}[/tex]
You can somewhat think of this situation as a sort of tree. You start with 7 large branches representing the pants, then for every one of those you have 3 medium-sized branches to represent the pairs of pants. Each one of those has 5 sticks for the ties, which in turn each have 6 leaves to represent the jackets and therefore a complete outfit. The solution is found by getting the total number of leaves on the tree.
........................
Answers
Answer:
???????
Step-by-step explanation:
?????
A student found the solution below for the given inequality. Which of the following explains whether the student is correct? The student is completely correct because the student correctly wrote and solved the compound inequality. The student is partially correct because only one part of the compound inequality is written correctly. The student is partially correct because the student should have written the statements using “or” instead of “and.” The student is completely incorrect because there is “ no solution “ to this inequality.
Answers
The statement which best explains whether the student is correct is: D. the student is completely incorrect because there is "no solution" to this inequality.
What is an inequality?An inequality refers to a mathematical relation that compares two (2) or more integers and variables in an equation based on any of the following:
Less than (<).Greater than (>).Less than or equal to (≤).Greater than or equal to (≥).Since |x-9| is greater than or equal (≥) to zero (0), we can logically infer that this student is completely incorrect because there is "no solution" to this inequality.
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Complete Question:
A student found the solution below for the given inequality.
|x-9|<-4
x-9>4 and x-9<-4
x>13 and x<5
Which of the following explains whether the student is correct?
A. The student is completely correct because the student correctly wrote and solved the compound inequality.
B. The student is partially correct because only one part of the compound inequality is written correctly.
C. The student is partially correct because the student should have written the statements using “or” instead of “and.”
D. The student is completely incorrect because there is “ no solution “ to this inequality.
QUESTION IS DOWN BELOW 15 POINTS EACH
Answers
The surface area of the given triangular prism is 960 yd²
Calculating surface areaFrom the question, we are to calculate the surface area of the given figure
The given figure is a triangular prism
Surface area of the triangular prism =
[tex](26 \times 12 )+ 2(\frac{1}{2} \times 10\times 24) + (24 \times 12) + (12 \times 10)[/tex]
= 312 + 240 + 288 + 120
= 960 yd²
Hence, the surface area of the given triangular prism is 960 yd²
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How do you compute -3+9-7
Answers
Answer:
-1
Step-by-step explanation:
-3 + 9 = 6, 6 - 7 = -1
What do you think would happen to the average if you kept rolling the number cube over and over?
The average would keep increasing.
The average would keep decreasing.
The average would approach a set value.
The average would not follow any pattern.
Answers
Answer: ( C ) the average would approach a set value.
9
10
11
12
13
14
15
16
17
18
19
data
[Graphs generated by this script: setBorder(15); initPicture(9,19,-3,4);axes(1,100,1,null,null,1,'off');text([14,-3],"data");line([9,2],[9,4]); rect([11,2],[18,4]); line([15,2],[15,4]);line([19,2],[19,4]); line([9,3],[11,3]); line([18,3],[19,3]);]
Based on the boxplot above, identify the 5 number summary
,
,
,
,
Answers
The 5 number summary are
Minimum = 10, Lower quartile = 11, Median = 12, Upper quartile = 17 and Maximum = 19
How to identify the 5 number summary?The complete question is in the attached image
The 5 number summary of box plot are:
MinimumLower quartileMedianUpper quartileMaximumEach of these summaries are represented by the vertical lines of the box plot
From the attached box plot, we have:
Minimum = 10, Lower quartile = 11, Median = 12, Upper quartile = 17 and Maximum = 19
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Pls Help! Geometry
Find the area of the shaded region
Answers
Answer: 112.5 square cm
Step-by-step explanation:
The area of the rectangle is [tex](20)(9)=180[/tex] square cm.
The area of the white triangle is [tex]\frac{1}{2}(9)(20-3-2)=67.5[/tex] square cm.
So, the area of the shaded region is [tex]180-67.5=112.5[/tex] square cm.
Find B in degrees.
B
A
a
C
A b C
A = 40°
a = 8
b=7
B = [?] degrees
Round to the nearest tenth.
Answers
Answer:
34.2°
Step-by-step explanation:
sinB/b = sinA/a
sinB/7 = sin(40°)/8
sinB = 7sin(40°)/8
B=arcsin(7sin(40°))/8
So, to the nearest tenth, B is 34.2°.
If y = x then dy, the differential of y, as a changes from 64 to 64.1 is given
by
Answers
Answer:
[tex]dy \ = \ 0.1[/tex]
Step-by-step explanation:
Considering the Leibniz notation to represent the derivative of [tex]y[/tex] with respect to [tex]x[/tex], suppose [tex]y \ = \ f\left(x\right)[/tex] is a differentiable function, let [tex]dx[/tex] be the independent variable such that it can be designated with any nonzero real number, and define the dependent variable [tex]dy[/tex] as
[tex]dy \ = \ f'\left(x\right) \ dx[/tex],
where [tex]dy[/tex] is the function of both [tex]x[/tex] and [tex]dx[/tex]. Hence, the terms [tex]dy[/tex] and [tex]dx[/tex] are known as differentials
Dividing both sides of the equation by [tex]dy[/tex], yield the familiar expression
[tex]\displaystyle\frac{dy}{dx} \ = \ f'\left(x\right)[/tex].
Given that [tex]f\left(x\right) \ = \ x[/tex] and [tex]dx \ = \ 64.1 \ - \ 64 \ = \ 0.1[/tex], hence
[tex]f'\left(x\right) \ = \ 1[/tex].
Subsequently,
[tex]dy \ = \ f'\left(64\right) \ \times \ 0.1 \\ \\ dy \ = \ 1 \ \times \ 0.1 \\ \\ dy \ = \ 0.1[/tex].
Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the correct position in the answer box. Release your mouse button when the item is place. If you change your mind, drag the item to the trashcan. Click the trashcan to clear all your answers.
Using the transformation T: (x, y) (x + 2, y + 1), find the distance named.
Answers
The required distance AB is given by .[tex]\sqrt{17}[/tex]
What is transformation?Transformation, is process which is used to change the position of the bor shapes.
Since, coordinate of A(0,0) B(1,4)
After transformation T: (x, y) (x + 2, y + 1) of A, B it become A'(2, 1), B '(3,5)
Now,
Distance = √(x2-x1)^2+(y2-y1)^2
AB = [tex]\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex] ; A'B' = [tex]\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex] ;
A(0,0) B(1,4) A'(2, 1), B '(3,5)
AB= [tex]\sqrt{(1-0)^2+(4-0)^2}[/tex] A'B'= [tex]\sqrt{(3-2)^2+(5-1)^2}[/tex]
AB= √17 A'B' = √17
Thus, the required distance AB and A'B' = √17.
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your heart beats 86 times per minute proportional or non proportional
Answers
Perform the operation. 3/a^2b + 2/ab^2
Answers
The simplified form of the expression is 3b+2a/(ab)²
Sum of fractionsFractions are written as a ratio of two integers. Given the expression below;
3/a^2b + 2/ab^2
Find the LCM
3/a^2b + 2/ab^2 = 3b+2a/a²b²
3/a^2b + 2/ab^2 = 3b+2a/(ab)²
Hence the simplified form of the expression is 3b+2a/(ab)²
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Suzanne is looking at taking out a personal loan. Opportunity Loans is offering her $1600 at 3.45% for 1 year, with interest compounding monthly. General Loans is offering her $1600 at 4.2% for 1 year, with interest compounding quarterly. Assuming she makes no payments until the 1 year is up, how much interest will have accrued on each loan? On which loan will she earn the least amount of interest?
Answers
Step-by-step explanation:
So the general formula for compound interest is [tex]A = P(1+\frac{r}{n})^{nt}[/tex] where r is the interest rate, t is the time in years, and n is the amount of compounds per year. So plugging in the values for both equations you'll get
Opportunity Loans:
[tex]A = 1600(1+\frac{0.0345}{12})^{(12)(1)}[/tex]
[tex]A = 1600(1.002875)^{12}[/tex]
[tex]A \approx 1600(1.035)[/tex]
[tex]A = \$1,656.08[/tex]
Now to find the interest accrued on this loan you simply subtract 1600 from the A or final amount
[tex]Interest=1656.08-1600\\Interest=56.08[/tex]
General Loans:
[tex]A = 1600(1+\frac{0.042}{4})^{(4)(1)}[/tex]
[tex]A = 1600(1.0105)^4[/tex]
[tex]A \approx 1600(1.042)[/tex]
[tex]A = 1,668.27[/tex]
To find the interest we do the same thing we did in the previous problem
[tex]interest = 1668.27-1600\\interest=68.27[/tex]
Opportunity loans has the least amount of interest after a year
The midpoint of STis W(-3, 1). Point S is located at (-7,-9).
What are the coordinates of point T?
O (-5,5)
O (4,4)
O (1,11)
O (10,-10)
Answers
Answer:
T [1;11].
Step-by-step explanation:
x-coordinate of the point T is:
x(T)=2*x(W)-x(S); ⇒ x(T)=2*(-3)+7=1;
y-coordinate of the point T is:
y(T)=2*y(W)-y(S); ⇒ y(T)=2*1+9=11.
Finally, T(1;11).
The data in the tables below were collected from first year students at a community college. The variable is “number of credit cards.” Two of the probabilities are missing.
Number of credit cards 0 1 2 3 4 5
Number of students 122 40 28 2 2 6
Based on this data, we can estimate the probability that a randomly selected student has X number of credit cards using relative frequencies to create a probability distribution. Note: There are 200 students.
Number of credit cards 0 1 2 3 4 5
Probability 0.14 0.01 0.01 0.03
Use this information to answer the first two questions below.
What is P(0)? (Hint: Find the relative frequency for this outcome. There are 200 students in the data set.)
Answers
The probability that number of credit cards is 0 is 0.61
What is Probability ?Probability is the likeliness of an event to happen ,
It has a range from 0 to 1 , where 0 indicates uncertainty while 1 indicates certainty
The data for the college students is given and it has been asked to determine P(0)
The total students are 200
and the students that have no credit card from the data is 122
Therefore
P(0) = 122/200 = 0.61
Therefore the probability that number of credit cards is 0 is 0.61
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{(4z-7,z-4,z) |z is any real number} z=-5
Answers
The set when z = -5 is {-27, -9, -5}
How to determine the set elements?The set is given as:
{(4z-7,z-4,z) |z is any real number}
When z=-5, we have:
4z - 7 = 4(-5) - 7 = -27
z - 4 = -5 - 4 = -9
z = -5
So, we have:
{(4z-7,z-4,z) |z is any real number} ⇒ {-27, -9, -5}
Hence, the set when z = -5 is {-27, -9, -5}
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A square has a perimeter of 24cm. What is the length of each side?
Answers
Quick process:
⇒ Square has 4 sides
⇒ We have been given that the perimeter is 24 centimeters
⇒ Each side is equal in value and each side added up together must equal 24.
⇒ So to finish this out we need to divide the given perimeter which is 2 4 by the amount of side a square has which is 4.
⇒ So 24/4 = 6
Check the answer:
6 + 6 = 12
12 + 12 = 24 √
Perimeter of a square =24cm
Formula=4s
So 4s=24
s=24/4
s=6
Therefore side of the square is 6cm.
Mark me brainliest
Work out the area of this triangle.
6 cm
11 cm
12 cm
Answers
Step-by-step explanation:
there is a right angle formed in this question
this leads us to Pythagoras theorem
Hyp²=opp²+Adj²
Hyp²=11²+6²
Hyp²=121+36
Hyp²=157
Hyp=√157
Hyp=12.529964086
Hyp=12.5
if I am right mark as brainliest but if you consider I am wrong then you can correct me, Everyone learns everyday I am glad I help
Let g be the piecewise defined function shown.
g(x)=
x + 4, −5 ≤ x ≤ −1
2 − x, −1 < x ≤ 5
Evaluate g at different values in its domain.
g(−4) =
g(−2) =
g(0) =
g(3) =
g(4) =
Answers
Work is attached. Hope it helps!
The scores on a psychology exam were normally distributed with a mean of 61 and a standard deviation of 5. A failing grade on the exam was anything 2 or more standard deviations below the mean. What was the cutoff for a failing score? Approximately what percentage of the students failed ?
Answers
The cutoff for a failing score is 51 and about 2.28% of the students failed the psychology exams.
What is an equation?An equation is an expression that shows the relationship between two or more numbers and variables.
Z score is given by the equation:
z = (raw score - mean) / standard deviation
Given mean of 61 and a standard deviation of 5.
The z score that corresponds to 2 or more standard deviations below the mean is -2. Hence:
-2 = (x - 61) / 5
x = 51
P(z < -2) = 0.0228
The cutoff for a failing score is 51 and about 2.28% of the students failed the psychology exams.
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Bernice received the following scores on five science tests: 96, 77, 86, 97, and 89.
Which of the following statements is true?
O The mean of the set is less than the median.
O The mode of the set of scores is 96.
O The median of the set of scores is 86.
o The mean and the median of the set of scores are the same.
Answers
Answer:
the mean and the median of the set of scores are the same.
Step-by-step explanation:
median = 89
mean = 96+77+86+97+89 = 445 / 5
= 89
mode = none
The mean and the median of the set of scores are the same.
What is mean and median?Introduction to Mean, Median, and Mode: In statistics, we frequently choose a representative value to roughly characterise the entire collection of data. The name "measure of central tendency" denotes that this representative value is one around which the data is centred. The mean, median, and mode are these central tendencies. The most typical way to measure central tendency is with the mean. In actuality, it represents the mean of the specified set of data. Both continuous and discrete data can be used with it. In most cases, the median shows the midpoint of the given set of data when it is arranged in a specific order.
Mean: - Average value
Median: - Middle term (after arranging in either accending or descending order)
Mean = 445/5 = 89
Median = Middle term = 3rd term = 89
Mean and median are equal.
Hence, option D is correct
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pls I need answers of these questions help
Answers
Step-by-step explanation:
1A
the travel paths of the plane build a right-angled triangle.
one travels north, which creates the vertical leg.
the other travels west, which creates the horizontal leg.
their distance is the Hypotenuse (the baseline opposite of the 90° angle), which we can get via Pythagoras
c² = a² + b²
c being the Hypotenuse, a and b being the legs.
how long are the legs ?
the plane going north travels at 240 km/h for 90 minutes.
the plane going west travels at 180 lm/h for 90 minutes.
90 minutes = 1.5 hours (1 hour 30 minutes).
so,
plane 1 went 240×1.5 = 360 km.
plane 2 went 180×1.5 = 270 km.
distance² = 360² + 270² = 129600 + 72900 = 202500
distance = sqrt(202500) = 450 km
2A
again Pythagoras :
130² = 80² + (2nd leg)²
16900 = 6400 + (2nd leg)²
10500 = (2nd leg)²
2nd leg = 102.4695077... m
so, the full perimeter is
130 + 80 + 102.4695077... = 312.4695077... m
312.4695077... = 100%
1% = 100%/100 = 3.124695077... m
how many % are 220 m ? well as many as how often 1% fits into 220 m :
220 / 3.124695077... = 70.40686998... %
3A
again Pythagoras :
the legs of that inner right-angled triangle are (as you correctly wrote) 40 m and 45 m.
the fence is the Hypotenuse, and we get
fence² = 40² + 45² = 1600 + 2025 = 3625
fence = 60.20797289... m ≈ 60 m
please burn that into your brain forever for any right-angled triangle situations :
a² + b² = c²
Pythagoras
6) You have a rectangular backyard that is 90 feet wide. It has an area of 10,800 square feet. You are
putting a fence along one length of the yard.
a. Use the formula for the area of a rectangle A = 1 w, where I is the length, and w is the width. Find
the length of your backyard.
b. The fence costs $12.50 per linear foot. What is the total cost of the fence for one length of the yard?
Answers
Answer:
Length = 120 ft
Total cost = 1500$
Step-by-step explanation:
First, to find the length of the backyard we reverse the formula (A = l * w) and divide 10,800 by 90.
10,800 ft^2 / 90 ft = 120 ft.
we can check this by plugging the length of 120 ft into the formula:
120 ft * 90 ft = 10,800 ft^2.
Next, to find the cost of the single length of fence we multiply our length (120 ft) by the cost ($12.50):
120 * 12.50 = $1500
marcus plans to paint a bright green rectangle on the bottom of his pool. He has enough to cover an area of 273 square feet. He wants the width of the rectangle to be 13 feet. Determine what the length of the rectangle should be
Answers
The length of the rectangle that makes the area to be 273 square feet is 21 feet.
What is an equation?An equation is an expression that shows the relationship between two or more variables and numbers.
Let x represent the length of the rectangle, hence:
Length * width = area
13 * x = 273
x = 21 feet
The length of the rectangle that makes the area to be 273 square feet is 21 feet.
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Write an equation to match the verbal statement.
one-half is equal to the product of a number, c, and eight
Answers
Answer:
1/2 = c*8 or c*8=1/2
Step-by-step explanation:
It says 1/2 is equal to which means 1/2 is on the side for one of the equations. It doesn't really matter. It says is equal to a number, c and eight. Its implying that you multiply c and 8 together because if it meant for another number to be multiplied then a third symbol would be in the operation.