What is the image of R for a dilation with center (0,0) and a scale factor of 1 1/2?
Answer: The image is (6,-3)
Step-by-step explanation:
The coordinates of R is ( 4,-2) and to find the image using the scale factor 1.5 you will multiply the x coordinates by 1.5 and the y coordinate also by 1.5 to have the new image of R.
4 * 1.5 = 6
-2 * 1.5 = -3
The new coordinates care (6, -3)
Find the s.....................
Answer:
AC = 8
Step-by-step explanation:
Area of kits is half the product of diagonals
\(Area\; of \;kite = \frac{d_1d_2}{2}\\\\36 = \frac{AC*BD}{2} \\\\36 = \frac{AC(6+3)}{2} \\\\36*2 =9AC\)
AC = 72/9
AC = 8
Identify the axis of symmetry, vertex, and range for the quadratic function.
Please help 10points!
Find x.
Answer:
The value of x is 19.
Step-by-step explanation:
Given:
m∠1 = (4x + 9)°
m∠2 = (x - 14)°
Since m∠1 and m∠2 are complementary angles, we have:
m∠1 + m∠2 = 90°
Substituting the given expressions for m∠1 and m∠2:
(4x + 9)° + (x - 14)° = 90°
Combining like terms:
4x + 9 + x - 14 = 90
Combining the x terms and the constant terms:
5x - 5 = 90
Adding 5 to both sides:
5x = 90 + 5
Simplifying:
5x = 95
Dividing both sides by 5:
x = 95 / 5
Simplifying further:
x = 19
How to simplify this:
Arcctg(tg(x) )
The expression arcctg(tg(x)) simplifies to arcctg(tan(x)).
To simplify the expression arcctg(tg(x)), we can apply trigonometric identities and properties.
The function arcctg(x) is the inverse cotangent function, which is the angle whose cotangent is x. Similarly, tg(x) represents the tangent function.
First, let's simplify the expression inside the arcctg function, which is tg(x):
tg(x) = sin(x) / cos(x)
Now, we can substitute this value into the original expression:
arcctg(tg(x)) = arcctg(sin(x) / cos(x))
Using the property of inverse trigonometric functions, we can rewrite this as:
arcctg(sin(x) / cos(x)) = arcctg(1 / tan(x))
Now, we can simplify further using the identity:
1 / tan(x) = cot(x)
Therefore:
arcctg(1 / tan(x)) = arcctg(cot(x))
Using another identity, we know that the cotangent function is the reciprocal of the tangent function:
cot(x) = 1 / tan(x)
Therefore, we can simplify the expression to:
arcctg(cot(x)) = arcctg(1 / tan(x)) = arcctg(tan(x))
Finally, we arrive at the simplified expression:
arcctg(tg(x)) = arcctg(tan(x))
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5
A line passes through the point (4, -3) and has a slope of
4
Write an equation in slope-intercept form for this line.
Answer:
y = 4x -19
Step-by-step explanation:
y = 4x + b
first we add the point to the equation and then we solve for b
-3 = 4 ( 4 ) + b
-3 = 16 + b
-16
-19 = b
Which coupon is a better deal? 15℅ off of $75 shoes or $15 off of $75 shoes? Please show your work
Answer:
15 dollars off of 75 is better
Step-by-step explanation:
75 multiplied by 1.5 is only 11 dollars
If m = -10 and n = -19, what is square root -2m + n?
Answer:
1
Step-by-step explanation:
sqrt -2(-10)+(-19)
sqrt (20-19)
sqrt (1)
1
Select the correct answer.
Which statement is true about a dot plot?
Answer:
The statement that is true about dot plot is:
A dot plot shows the frequency of the individual values of any given data set
Step-by-step explanation:
A dot plot also known as a dot chart or a strip plot is just a display of the data depending upon the frequency of the values.
The dot plot is somewhat like the histogram but the difference is:
A histogram shows the frequency of an interval of values of any given data set.
for example:
we may make a histogram for the weight of students of a class.
since we may divide the weight of the students into some interval.
whereas the dot plot gives the frequency of the individual data points or discrete data points.
for example:
we may plot a dot plot for rolling a number cube 20 times.
Hence, the correct statement is:
A dot plot shows the frequency of the individual values or of any given data set.
Match the proper noun to the common noun.
1. Uncle Peter
automobile
2. January
president
3. Jesse Owens
relative
4. William Shakespeare
author
5. Sunday
athlete
6. Abraham Lincoln
month
7. Chrysler
day
X
It has taken me 32 minutes to drive 48 km. If the total length of my journey is 146 km and I maintain the same speed, estimate how much longer I will be driving for?
It has taken me 32 minutes to drive 48 km. If the total length of my journey is 146 km and I maintain the same speed, then you can estimate that you will be driving for approximately 65.344 minutes longer to complete the remaining 98 km of your journey.
To estimate how much longer you will be driving for, we can use the concept of proportionality. We know that the time taken to drive 48 km is 32 minutes. Let's use this information to find the time it would take to drive 146 km.
We can set up a proportion to find the time:
(time taken for 48 km) / (48 km) = (time taken for 146 km) / (146 km)
Let's solve for the time taken for 146 km:
(time taken for 146 km) = (time taken for 48 km) * (146 km / 48 km)
Substituting the given values:
(time taken for 146 km) = 32 minutes * (146 km / 48 km)
Calculating the value:
(time taken for 146 km) ≈ 32 minutes * 3.042
(time taken for 146 km) ≈ 97.344 minutes
Therefore, it would take approximately 97.344 minutes to drive 146 km at the same speed.
To estimate how much longer you will be driving for, we can subtract the initial time of 32 minutes from the estimated time of 97.344 minutes:
Additional time = 97.344 minutes - 32 minutes
Additional time ≈ 65.344 minutes
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factorise:x^3-(y-z)^3
The factorized form of \(x^3 - (y - z)^3\ is \ (x - y + z)(x^2 - xy + 2xz + yz - 2z^2).\)
The Factorization is derived from the application of a mathematical identity. As an AI language model, the information provided is generated based on existing knowledge and formulas.
The given expression is \(x^3 - (y - z)^3.\)To factorize it, the difference of cubes, which states that a^3 - b^3 can be factorized as\((a - b)(a^2 + ab + b^2).\)
Applying this identity to our expression, we have:
\(x^3 - (y - z)^3 = (x - (y - z))((x - (y - z))^2 + (x - (y - z))(y - z) + (y - z)^2)\)
Simplifying further, we get:
\(= (x - y + z)(x^2 - 2xy + 2xz - y^2 + 2yz - z^2 + xy - y^2 + yz - z^2 + y^2 - 2yz + z^2)\\= (x - y + z)(x^2 - 2xy + xy + 2xz + yz - 2yz - y^2 + y^2 - y^2 + 2yz - 2z^2 + y^2 - z^2 + z^2)\\= (x - y + z)(x^2 - xy + 2xz + yz - 2z^2)\)
So, the factorized form of \(x^3 - (y - z)^3 \ is\ (x - y + z)(x^2 - xy + 2xz + yz - 2z^2).\)
the above factorization is derived from the application of a mathematical identity.
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PLSSS HELP ME 14 POINTS
The transformation of f(x) to g(x) is :
Vertically compressed by a factor of 9Shifted down by 2 Describing the transformation of the functionsFrom the question, we have the following parameters that can be used in our computation:
The functions f(x) and g(x)
Where, we have
f(x) = x
g(x) = 1/9x - 2
The graph of the functions f(x) and g(x) are added as an attachment
And we have the transformations to be:
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Viel
Eram
back
A movie theater has 4 groups of seats. The largest group
of seats, in the middle, has 21 rows, with 21 seats in each
row. There are 2 smaller groups of seats on the sides, each
with 21 rows and 7 seats in each row. A group of seats in
the back has 6 rows, with 33 seats in each row.
Step by s
How many seats are in the movie theater
Textbod
side
middle
side
Print
Part 1 out of 6
Complete the explanation for what you need to know.
of the movie theater.
You need to find the number of sections that are in each row
Check
Next
Tuin
Se
and Close
Oo
Answer:
933 seats
Step-by-step explanation:
Given that :
4 different group of seats are in a movie theater :
The middle group ; 2 side groups and the back group
Number of seats in the movie theater :
THE MIDDLE GROUP:
21 Rows and 21 seats per row
Number of seats = 21 * 21 = 441 seats
THE SIDE GROUPS:
21 rows and 7 seats per row
Number of seats = 2(21 * 7) = 294 seats
BACK GROUP:
6 rows and 33 seats per row
Number of seats = 6 * 33 = 198 seats
Total number of seats :
441 + 294 + 198 = 933 seats
I need help with this question
A person who watches TV 11.5 hours can do 36 sit-ups.
Define Regression Analysis
Regression analysis is a mathematical measure of the average relationship between two or more variables in terms of the original units of the data
Given,
y = ax +b
a = -1.073
b = 27.069
r² = 0.434281
r = -0.659
No. of hours TV watched = 11.5 hours
we have , y = ax + b
where, a = 1.073 , b = 27.069 and x = 11.5 hours
put this value in given equation,
y = 1.073 * 11.5 + 27.069
After calculating, we get
y = 39.4085 or 39
Therefore, a person who watches TV 11.5 hours can do 36 sit-ups.
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Determine the domain of which the following function is increasing
Answer:
domain : - ∞ < x < 1
Step-by-step explanation:
the function is increasing on the upward part of the curve. that is
from negative infinity to the vertex at (1, 3 )
domain : - ∞ < x < 1
What is the product of 4.6 and 3 in expanded form
Answer:
(13.0 + 0.8)
Step-by-step explanation:
4.6 × 3 = 13.813.8 = (13.0 + 0.8)I hope this helps!
The product of the numbers 4.6 and 3 in the expanded form is (13.0 + 0.8)
What is multiplication?
Multiplication is the process of determining the product of two or more numbers in mathematics. A product, or an expression that specifies factors to be multiplied, is what happens when you multiply two numbers in mathematics.
Given numbers are 4.6 and 3. The product of the two numbers will be done as below:-
4.6 × 3 = 13.8
Write the product in expanded form.
13.8 = (13.0 + 0.8)
Therefore, the product of the numbers 4.6 and 3 in the expanded form is (13.0 + 0.8).
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what is 44 1/2 as a improper fraction
An improper fraction is a fraction whose numerator is larger than its denomiantor.
Given mixed fraction is
\(44\frac{1}{2}\)Now,
\(44\frac{1}{2}=\frac{89}{2}\)So, 89/2 is the improper fraction.
PLSSSS HELPPP I WILL FIVE BRAINLY!!!!
Answer:
The first box : -4 the second one : 6
Step-by-step explanation:
subtract 7 from 3 for the first box, then add 10 to -4 for the second one.
2
Estimate by rounding the divisor to the nearest tens place and the dividend to the nearest compatible
number. Then find the quotient.
Enter the remainder, if any, as a fraction in simplest form.
54 5,022
The estimate is
The quotient is
Here is a scatter plot that shows the number of assists and points for a group of hockey players. The model, represented by y=1.5x+1.2 , is graphed with the scatter plot.a. What does the slope mean in this situation?b. Based on the model, how many points will a player have if he has 30 assists?
Based on the model, a player with 30 assists will have approximately 46.2 points.
a. The slope of a line in a scatter plot represents the relationship between the two variables being plotted. In this case, the slope of the model y = 1.5x + 1.2 is 1.5, which means that for every 1 unit increase in the number of assists, there is a corresponding 1.5 unit increase in the number of points.
b. To find the number of points for a player with 30 assists, we can substitute x = 30 into the model equation to get:
y = 1.5x + 1.2
= 1.5(30) + 1.2
= 45 + 1.2
= 46.2
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A rental car company charges $36.39 per day to rent a car and $0.09 for every mile driven. Miguel wants to rent a car, knowing that
He plans to drive 225 miles.
He has at most $480 to spend.
Which inequality can be used to determine x, the maximum number of days Miguel can afford to rent for while staying within his budget?
The inequality used to determine the maximum number of days Miguel can afford to rent while staying within his budget is 202.5 + 36.39x ≤ 480.
What is an inequality?
An inequality is a comparison between two or more mathematical expressions. It can be of the form ≤, ≥, < or >.
We are given per day charges as $36.39 and the charges per mile as $0.90.
Also, it is given that in total 225 miles have been driven.
So, the charges of 225 miles are:
⇒225 x 0.90
⇒$202.5
It is given that he can spend maximum $480.
So, for the maximum number of x days, we get the inequality as
202.5 + 36.39x ≤ 480
Hence, the inequality used to determine the maximum number of days Miguel can afford to rent while staying within his budget is
202.5 + 36.39x ≤ 480.
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100 Points! Algebra question, photo attached. Please show as much work as possible. Thank you!
A. The distributions of the periods is that using the five number summary is that
The 7th Period has higher minimum and lower maximumThe 3rd period is more spread (from the quartiles)The 7th Period has higher medianB. The box and whisker plot of the periods is attached
A. Comparing the distributions of the periodsFrom the question, we have the following parameters that can be used in our computation:
7th Period
66, 72, 77, 78, 78, 80, 82, 84, 84, 87, 88, 88, 89, 89, 90 92, 92, 93, 94, 94 96, 96
3rd Period
52, 60, 62, 64, 64, 65, 68, 71, 72, 74, 75, 76, 78, 79, 83, 84, 85, 88, 89, 93, 94, 97
The distributions of the periods will be compared using the five-number summaries
Using a graphing tool, the five-number summaries are:
7th Period
Minimum: 66Lower Quartile Q1: 79.5Median: 88Upper Quartile Q3: 92.25Maximum: 963rd Period
Minimum: 52Lower Quartile Q1: 64.75Median: 75.5Upper Quartile Q3: 85.75Maximum: 97B. Creating a box and whisker plot of the periodsThe box and whisker plot of the periods is added as an attachment
From the box and whisker plot attached, we can see the five-number summaries of the periods
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describe and correct the error in solving the equations below
9514 1404 393
Answer:
19. wrong multiplier was used, and used incorrectly; x = -324
20. wrong multiplier was used, and used incorrectly; y = 5
Step-by-step explanation:
In each case, the equation was multiplied by the coefficient of the variable, instead of divided. In each case, the square of the coefficient was evaluated incorrectly (so the error wasn't noticed).
__
19) As described above.
(-36)(9) = (x/9)(9)
-324 = x
__
20) In addition to the errors described above, the variable was changed from y to x.
15/3 = (3y)/3
5 = y
Write a function that fits the following criteria:1. Vertical asymptote at 42. Zeroes at 0 and 3 3. Hole at (5,10)
The answer is option c)
\(\frac{(x+5)(x)(x-3)}{(x-5)(x-4)}\)I need help with this math
Answer:
500 and 4.3
Step-by-step explanation:
A decigram is one-tenth of a gram and a kilometer is one-thousandth of a meter. Using this information, we must multiply the given amounts by the values.
5000 × 0.1 = 500
4300 × 0.001 = 4.3
Thus, the answers [in order] are 500 and 4.3
Hope this helps and feel free to ask any questions.
Select the correct answer from each drop-down menu.
Nirja has 24 marbles. The number of marbles Nirja has is 6 more than the number of marbles Tim has.
If Tim has x marbles, the equation that represents the situation is
The value of x that makes the equation true is
Reset
Next
Answer:
24 = x+6
x = 18
Step-by-step explanation:
N = 24
T = x
N = x+6
24 = x+6
Subtract 6 from each side
24-6 = x+6-6
18 = x
Time has 6 marbles
Nirja has 6 more than Tim,
So you can subtract 6 from 24 to find x:
24-6 = x
Or you can add 6 to x to equal 24:
x + 6 = 24
You don't list the choices but it should be one of these.
Solve:
24 - 6 = x
x = 18
suppose potato chips cost 22.5 cents per ounce. If a bag costs $2.99, how many ounces are in the bag of chips?
Answer:
Step-by-step explanation:
$2.99/.225 per oz. ≈ 13.29 oz or 13.2888... oz
a 35 foot ladder is leaning agaisnt each side of a building and is positioned 21 feet from the base of the building. how far above the ground is the point where the ladder touches the building ?
The distance above the ground where the ladder touches the building is 28ft.
How far above the ground is the point where the ladder touches the building?Pythagorean theorem states that the "square on the hypotenuse of a right-angled triangle is equal in area to the sum of the squares on the other two sides.
It is expressed as;
c² = a² + b²
Given the data in the question;
Length of the ladder = hypotenuse = 35ftDistance of the ground foot to the building a = 21ftHeight where the ladder touches the building b = ?Plug the given values into the above formula and solve for b
c² = a² + b²
b² = c² - a²
b = √( c² - a² )
b = √( 35² - 21² )
b = √( 1225 - 441 )
b = √( 784 )
b = 28 ft
Therefore, height at which the ladder touches the building is 28ft.
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a triangular field has boundaries of lengths 170m,195m and 210m,find the size of the largest interior angle of the field
The size of the largest interior angle of the field is 69.86°
What is cosine law?The law of cosines relates the lengths of the sides of a triangle to the cosine of one of its angles.
Given that, a triangular field has boundaries of lengths 170m, 195m and 210m, we need to find the size of the largest interior angle of the field,
We know that, angle opposite to the largest side is largest,
Therefore,
The largest angle is opposite is 210 m side, (say c)
Using the cosine rule,
210² = 170²+195²-2(170)(195)cosC
CosC = 170²+195²-210² / 2(170)(195)
CosC = 22825 / 66300
CosC = 0.344268477
C = 69.86°
Hence, the size of the largest interior angle of the field is 69.86°
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