the function f: P(A) → P(A), where f(X) = A-X, is onto but not one-to-one.
What is a function?
A unique kind of relation called a function is one in which each input has precisely one output. In other words, the function produces exactly one value for each input value. The graphic above shows a relation rather than a function because one is mapped to two different values. The relation above would turn into a function, though, if one were instead mapped to a single value. Additionally, output values can be equal to input values.
To determine if the function f: P(A) → P(A), where f(X) = A-X, is onto, one-to-one, neither, or both, we need to consider the following:
Onto: A function is onto if every element in the codomain has a corresponding preimage in the domain. In other words, for every Y in P(A), there exists an X in P(A) such that f(X) = Y.
Let Y be any subset of A. Then, we need to find an X such that f(X) = Y. Since f(X) = A-X, we need to find an X such that A-X = Y. Solving for X, we get X = A-Y. Therefore, we can choose X = A-Y, and we have f(X) = A-(A-Y) = Y. Hence, f is onto.
Next, we need to prove that f is not one-to-one. To do this, we need to find two different sets X1 and X2 such that f(X1) = f(X2).
Hence, the function f: P(A) → P(A), where f(X) = A-X, is onto but not one-to-one.
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"John's T.V". gives you 25% discount on a $987.48 T.V and you pay 6 1/2 sales tax on the balance. If you take out a 2 year loan with an annual interest rate of 15.6%, what will your monthly payment be?
Answer:
To calculate the monthly payment for the TV after the discount, sales tax, and financing, we need to follow these steps:
Step 1: Calculate the discount
Discount = 25% of $987.48
Discount = 0.25 x $987.48
Discount = $246.87
Step 2: Calculate the discounted price of the TV
Price after discount = $987.48 - $246.87
Price after discount = $740.61
Step 3: Calculate the sales tax
Sales Tax = 6.5% of $740.61
Sales Tax = 0.065 x $740.61
Sales Tax = $48.15
Step 4: Calculate the total cost of the TV after discount and sales tax
Total cost = Price after discount + Sales Tax
Total cost = $740.61 + $48.15
Total cost = $788.76
Step 5: Calculate the monthly payment on the 2-year loan with 15.6% annual interest rate using the following formula:
Monthly Payment = (P x r) / (1 - (1 + r)^(-n))
where P is the principal (total cost of the TV), r is the monthly interest rate (15.6% / 12), and n is the number of months (24).
Monthly Interest Rate = 15.6% / 12
Monthly Interest Rate = 0.013
Monthly Payment = ($788.76 x 0.013) / (1 - (1 + 0.013)^(-24))
Monthly Payment = $36.89
Therefore, the monthly payment on the 2-year loan for the TV is $36.89.
Step-by-step explanation:
Here is a scatter plot that shows the age of some used
cars and their prices in 2020, together with the graph of
a linear model for the relationship between price and
age.
Approximate the slope of the linear model shown in the
scatter plot.
The point that appears to be closest to the coordinates (29, 37.7) on the scatter plot is (29,37).
What is scatter plot?A scatter plot is a type of chart that displays values for two variables for a set of data. The data points in a scatter plot are represented by dots or circles, and their position on the chart represents the values of the two variables. One variable is usually plotted on the horizontal axis (x-axis) and the other variable is plotted on the vertical axis (y-axis). By analyzing the pattern of the scatter plot, you can see whether there is a relationship between the two variables, and what kind of relationship it is (positive, negative, or no relationship). Scatter plots are useful for identifying patterns, trends, and relationships in data, and are commonly used in scientific research, engineering, economics, and many other fields.
Here,
To find the foot length closest to 29, we need to look for the point on the scatter plot that has an x-value closest to 29.
Using the equation of the line provided (y=0.3x+29), we can see that when x=29, y=0.3(29)+29=37.7. Therefore, we are looking for the point on the scatter plot with an x-value close to 29 and a y-value close to 37.7.
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Complete question:
Here is a scatter plot that shows the lengths and widths of `20` left feet together with the graph of a model of the relationship between foot length and width. Circle the point that represents the foot length closest to `29`.
There are 40 students eating lunch in the cafeteria. of the students ordered chicken nuggets and the rest of the students are eating nachos. How many students are eating nachos? A 16 B 24 C 40 D 80
Answer:
what number is right before "of the students ordered chicken nuggets and the rest of the students are eating nachos." you cant answer the question otherwise.
Step-by-step explanation:
What is the area of this quadrilateral
Answer : 52.
Explanation : For Triangles ( 3 × 4 ) ÷ 2 Rectangle 10 × 4
The area of this quadrilateral is 52 square feet.
First, I noticed that the rectangle had sides which were 10 feet long and 4 feet tall. (10 × 4)
Second, I noticed that the triangles were 3 feet long and 4 feet tall. (3 × 4) Since this was a triangle, I then divided by 2. (3 × 4) ÷ 2 I then saw there were 2 triangles so I multiplied it by 2. [(3 × 4) ÷ 2] × 2
Lastly, the equation I was left with was (10 × 4) + {[(3 × 4) ÷ 2] × 2} = 5
—————
Please remember to revise this and make it in your own words if you want! I hope this helps you. -Doodle
—————
Evaluate the expression: ab+c
a=7, b=5, c=3
Substitute a=7, b=5, and c=3 into the expression ab+c:
ab+c = (7)(5) + 3
ab+c = 35 + 3
ab+c = 38
Therefore, ab+c is equal to 38 when a=7, b=5, and c=3.
need help pls and thank you
The measures for the triangle are given as follows:
x = 10.7.y = 12.3.z = 21.8.What is the Pythagorean Theorem?The Pythagorean Theorem states that in a right-angled triangle, the square of the length of the hypotenuse (the longest side) is equal to the sum of the squares of the lengths of the other two sides.
The theorem is expressed as follows:
c² = a² + b².
In which:
c is the length of the hypotenuse.a and b are the lengths of the other two sides (the legs) of the right-angled triangle.The base is composed by two lengths of 6 and 25 - 6 = 19, hence the value of x is obtained applying the Geometric Mean Theorem as follows:
x² = 6 x 19
x = sqrt(6 x 19)
x = 10.7.
The value of y is then the hypotenuse of a right triangles of sides 10.7 and 6, hence:
y² = 10.7² + 6²
y = sqrt(10.7² + 6²)
y = 12.3.
The value of z is then the hypotenuse of a right triangles of sides 10.7 and 19, hence:
z² = 10.7² + 19²
z = sqrt(10.7² + 19²)
z = 21.8.
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If one bus can transport 36 tourists how many buses are needed to transport 2177 tourists?
Thus, the number of buses needed to carry the 2177 tourists is found as 61.
Explain about the division of number?A number can be divided into an equal amount of component parts.
People may display a variety of signs to denote division. The backslash / is additionally employed, though the character is more typical. Numerous numbers may occasionally be written with a line separating them. It is also known as a fraction.
A division calculation has a name for each component. The dividend, the divisor, and indeed the quotient are the three key terms.
Dividend - The amount you are dividing up is called the dividend.The number you are dividing by is known as the divisor. The quotient is the result.Given data:
Number of tourists carried by 1 bus = 36.
Total number of tourists = 2177.
Number of buses = (Total number of tourists)/(Number of tourists carried by 1 bus)
Number of buses = 2177/36
Number of buses = 60.47
Number of buses = 61
Thus, the number of buses needed to carry the 2177 tourists is found as 61.
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The equation of line t is 3X-Y=6. Line m is the image of line t after a dilation with a scale factor of 1/2 centered at the origin. What is the equation of the line m?
Answer: y=3x
Step-by-step explanation: To find the equation of the line m, which is the image of line t after a dilation with a scale factor of 1/2 centered at the origin, we need to follow these steps:
Rewrite the equation of line t in slope-intercept form, y = mx + b, where m is the slope and b is the y-intercept.
3X - Y = 6
-Y = -3X + 6
Y = 3X - 6
So the slope of line t is 3.
Apply the dilation with a scale factor of 1/2 centered at the origin. This means that every point on line t is multiplied by 1/2 in both the x and y directions. The origin (0,0) remains fixed.
The new coordinates of any point on line t after dilation are given by (1/2x, 1/2y).
Use the new coordinates to find the equation of line m. To do this, we need to find the slope of line m and a point on it.
The slope of line m is the same as the slope of line t, which is 3.
To find a point on line m, we can use the fact that the origin remains fixed after dilation. So the point (0,0) is on line m.
Using the slope-intercept form, y = mx + b, we can write the equation of line m as:
y = 3x + b
To find the value of b, we can use the point (0,0):
0 = 3(0) + b
b = 0
Therefore, the equation of line m is y = 3x.
The Equation of line m is y= 3x - 3.
What is Scale Factor?A scale factor is a number that can be used to adjust the size of any geometrical figure or object in relation to its original size. It's used to draw the enlarged or reduced shape of any given figure, as well as to calculate the missing length, area, or volume of an enlarged or reduced figure. It should be noted that the scale factor only affects the figure's size and not its shape.
We have, Equation of line t
3x - y = 6
Take x= 0 then y = -6 and y= 0 then x = 2.
Now, dilate the coordinates by factor 1/2 as
(0, -3) and (1, 0).
So, the Equation of line m is
(x - 0) / (1- 0) = (y - (-3)) / (0 - (-3))
x/1 = y + 3 / 3
3x = y+ 3
y= 3x - 3
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A farmer is tracking the amount of corn his land is yielding each year. He finds that the function f(x)=-x^2+20x+50 models the crops in pounds per acre over x years. Find and interpret the average rate of change from year 1 to year 10.
The average rate of change from year 1 to year 10 is 8.3 pounds per acre per year based on given function.
We must compute the change in crop yield (in pounds per acre) during that time period and divide by the number of years to determine the average rate of change from year 1 to year 10:
Average change rate is equal to (f(10) - f(1)) / (10 - 1)
where f(x): function that represents the crop yield over an x-year period in pounds per acre.
When we enter the numbers 10 and 1 as substitutes in the function, we obtain:
f(10) = [tex]-10^2[/tex] + 20(10) + 50 = 150
f(1) =[tex]-1^2[/tex] + 20(1) + 50 = 69
Thus, from year one to year ten, the average rate of change is:
(150 - 69) / (10 - 1), or 8.3 pounds per acre per year, is the average rate of change.
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vEvaluate this table.
X 5 10 15 25 40
Y 1 2 3 5 8
The table represents a(n)
multiplicative
relationship
Answer:
y = 1/2 x
Step-by-step explanation:
y = mx + b
We need to find the m (slope) and the b (y-intercept)
The slope is the change in y over the change in x. Use to points on the line to find the slope.
(4,2) and (6,3)
[tex]\frac{3-2}{6-4}[/tex] = [tex]\frac{1}{2}[/tex]
The slope (m) is 1/2.
Use the slope and one of the points to calculate b
I will use the point (4,2)
y = mx + b
2 = 1/2(4) +b
2 = 2 +b Subtract 2 from both sides
0 = b
The y-intercept (b) is 0
y = _m + _
y = 1/2x + 0
y = 1/2 x
Helping in the name of Jesus.
if a college newspaper conducts a poll  and select students at random to answer a survey find the probability of a selected student is a woman or a business major 
Sο, if οur estimatiοns are reasοnably accurate, the likelihοοd that a chοsen student is a wοman οr a business majοr is rοughly 0.6.
what is prοbability ?It describes the likelihοοd οf a specific οccurrence οr grοup οf οutcοmes in a given envirοnment and is a key idea in mathematics and statistics. Prοbability is typically stated as a number between 0 and 1, with 1 denοting a certain event and 0 denοting an impοssibility. By dividing the number οf faοurable οutcοmesv by the tοtal number οf pοssible οutcοmes, οne can determine the prοbability οf an οccurring.
We must sum the prοbabilities οf twο events—the prοbability that the student is a wοman and the prοbability that the student is a business majοr—in οrder tο get the likelihοοd that a certain student is a wοman οr a business majοr.
P(A and B) equals P(A)*P (B)
Using this presumptiοn, we may calculate the likelihοοd that a chοsen student will majοr in business and be a wοman as fοllοws:
P (wοman) = 0.2 * P (business majοr) = 0.1 (10%)
After that, we can enter this value in the previοus equatiοn:
P (wοmen majοring in business) = 0.5 + 0.2 - 0.1 = 0.6 (οr 60%)
Sο, if οur estimatiοns are reasοnably accurate, the likelihοοd that a chοsen student is a wοman οr a business majοr is rοughly 0.6.
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Complete Question:
A college has an undergraduate enrollment of 3500. Of these, 860 are business majors, 1800 are women and 425 are women business majors.
a. Are the events "selecting a woman student" and "selecting a business major" mutually exclusive? Explain.
b. If a college newspaper conducts a poll and selects students at random to answer a survey, find the probability that a selected student is a woman or a business major.
The line plots represent data collected on the travel times to school from two groups of 15 students. A horizontal line starting at 0, with tick marks every two units up to 28. The line is labeled Minutes Traveled. There is one dot above 4,6,14, and 28. There are two dots above 10, 12, 18, and 22. There are three dots above 16. The graph is titled Bus 47 Travel Times. A horizontal line starting at 0, with tick marks every two units up to 28. The line is labeled Minutes Traveled. There is one dot above 8, 9,18, 20, and 22. There are two dots above 6, 10, 12,14, and 16. The graph is titled Bus 18 Travel Times. Compare the data and use the correct measure of variability to determine which bus is the most consistent. Explain your answer. Bus 18, with an IQR of 16 Bus 47, with an IQR of 24 Bus 18, with a range of 16 Bus 47, with a range of 24
Bus 14 is therefore the more reliable bus as a result of its lower IQR.
How to obtain the measures of spread?The dot plot, which depicts the frequency with which each observation appears in the data set, is the first thing we take into account.
The difference between the data set's third and first quartiles is represented by the interquartile range, which is the next factor we take into account.
Because it ignores outliers, the interquartile range is a better indicator of a spread than a data set's range.
We have the following for classes of 15 students:
Since the first seven students make up the first half, the first quartile is represented by the fourth dot, which represents the first half's median.
The final seven students make up the second half, thus the eleventh dot—the first half's median—is in the first quartile.
So, the following are the Bus 14 quartiles:
Q1 = 12.
Q3 = 18.
The IQR is therefore of:
IQR = Q3 - Q1 = 18 - 12 = 6.
Hence, the IQR is:
Q1 = 9.
Q3 = 16.
The IQR is therefore of:
IQR = Q3 - Q1 = 16 - 9 = 7.
Therefore, bus 14 is therefore the more reliable bus as a result of its lower IQR.
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Correct question:
The line plots represent data collected on the travel times to school from two groups of 15 students. A horizontal line starting at 0, with tick, marks every two units up to 28. The line is labeled Minutes Traveled. There is one dot above 10,16,20, and 28. There are two dots above 8 and 14. There are three dots above 18. There are four dots above 12. The graph is titled Bus 14 Travel Times. A horizontal line starting at 0, with tick, marks every two units up to 28. The line is labeled Minutes Traveled. There is one dot above 8, 9,18, 20, and 22. There are two dots above 6, 10, 12,14, and 16. The graph is titled Bus 18 Travel Times. Compare the data and use the correct measure of variability to determine which bus is the most consistent. Explain your answer. Bus 14, with an IQR of 6 Bus 18, with an IQR of 7 Bus 14, with a range of 6 Bus 18, with a range of 7
Which best describes the relationship between the line that passes through the points (9, –5) and (5, –2) and the line that passes through the points (–4, –2) and (–8, 1)?
A. same line
B. parallel
C. neither perpendicular nor parallel
D. perpendicular
Answer:
B. Parallel
Step-by-step explanation:
Let S1 be the slope of the line passing through the points
(9, - 5) and (5, - 2).
S1 = (- 2 -(- 5))/(5 - 9)
= (- 2 + 5)/(- 4)
= 3/(- 4)
S1 = - 3/4
Let S2 be the slope of the line passing through the points
(- 4, - 2) and (- 8, 1).
S2 = (1 -(- 2))/(-8 -(- 4))
= (1 + 2)/(- 8 + 4)
= 3/(-4)
S2 = - 3/4
Since,
the slope of two lines are same.
They are parallel.
Lines BC and DE are both vertical. What is the length of BD?
Answer: I believe it is option (A): 4.5
Step-by-step explanation: If you look closely and examine DE and CE you will see they are the same length, and we know they are 5. But if you compare the lines from a diagonal perspective, BD is not equal to 5 and has to be a bit smaller. The closest option below 5 is therefore 4.5
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Write down all of the statements below that are correct.
7.2 cm³ > 720 mm³
0.087 m³ <8700 cm³
300 mm³ = 0.03 cm³
8 m³=8,000,000 cm³
The correct statements for inequality are:
0.087 m³ < 8700 cm³
8 m³ = 8,000,000 cm³
What is inequality?An inequality is a mathematical statement that compares two expressions or values and indicates that one is greater than, less than, or not equal to the other. Inequalities use symbols such as "<" (less than), ">" (greater than), "≤" (less than or equal to), "≥" (greater than or equal to), and "≠" (not equal to) to show the relationship between the two expressions.
Here,
The statement "300 mm³ = 0.03 cm³" is incorrect because 300 mm³ is equal to 0.3 cm³ (since 1 cm = 10 mm).
The statement "7.2 cm³ > 720 mm³" is incorrect because 1 cm³ is equal to 1000 mm³, so 7.2 cm³ is equal to 7200 mm³. Therefore, 7.2 cm³ is less than 720 mm³.
Note: When comparing volumes, it is important to make sure that the units are consistent (e.g. converting all volumes to the same unit of measurement) before making any comparisons.
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A basket containing 150 oranges cost #450. Find the selling price of an orange if it is to be sold orange it at a profit of 5%
The selling price of the oranges was 472.5 dollars.
What is the profit?The profit is equal to the difference between the selling price and the original cost price.
We have been given that a basket containing 150 oranges costs 450 find the selling price of an orange if it is to be sold at a profit of 5%
Let's start with the profit.
Let's convert 5% to decimal form to find out.
[tex]\implies 5\% = \dfrac{5}{100} = 0.05[/tex]
Then double that by the starting price of 450.
[tex]450\times 0.05 = 22.5[/tex]
As a result, the profit is $22.5.
Now, add the profit to the beginning cost to get the selling price.
[tex]450 + 22.5 = 472.5[/tex]
Therefore, the selling price of the oranges was 472.5 dollars.
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Is there a composition of transformations that maps triangle ABC onto triangle XYZ.
Use the drop down options to accurately complete the sentences below about
transformations involving these two triangles.
Triangle ABC can be mapped onto triangle XYZ by a composition of transformations represented by (x,y) → (x+3,y-6) and followed by a dilation with center (0,0) and scale factor 1/3 represented by (x,y) → (x/3,y/3).
Describe Dilation?Dilation is a geometric transformation that involves changing the size of an object while maintaining its shape and proportions. In dilation, every point of the original figure is expanded or contracted away from a fixed point called the center of dilation.
The ratio of the distance between the center of dilation and each point of the original figure is the same for all corresponding points in the dilated figure. This ratio is called the scale factor, and it determines the degree of dilation.
If the scale factor is greater than 1, the figure is enlarged or dilated, while if the scale factor is less than 1, the figure is reduced or contracted. If the scale factor is negative, the figure is reflected across the center of dilation before being dilated.
Triangle ABC can be mapped onto triangle XYZ by a composition of transformations represented by (x,y) → (x+3,y-6) and followed by a dilation with center (0,0) and scale factor 1/3 represented by (x,y) → (x/3,y/3).
Triangle ABC is similar to Triangle XYZ.
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Find the length of a circle inscribed in a rhombus if its side and angle are equal: 8 cm and 60 degrees. С=?
The length of the circle is approximately 9.237 cm.
What are the diagonals of a rhombus?
A rhombus is a quadrilateral with all sides of equal length. It also has the following properties regarding its diagonals:
The diagonals bisect each other at 90 degrees.
The diagonals are perpendicular to each other.
The diagonals have the same length.
The diagonals divide the rhombus into four congruent triangles.
In a rhombus with a side of 8 cm and an angle of 60 degrees, the diagonals are equal in length.
The length of the diagonals can be found using the formula:
[tex]$D_1 = \frac{2a}{\sqrt{3}}$[/tex]
where a is the length of the side. Substituting the value of a as 8 cm, we get:
[tex]$D_1 = \frac{2(8)}{\sqrt{3}} \approx 9.237 \text{ cm}$[/tex]
The length of the circle inscribed in the rhombus is equal to the length of the diagonals.
Therefore, the length of the circle is approximately 9.237 cm.
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Calculate the mean, median, and mode for each shift and explain calculations.
Morning shifts 8,15,16,18,18,20,21,21,21,56 Evening shifts 3,11,12,14,22,22,30,33,34,47
Answer:
Morning shifts -
Evening shifts -
Step-by-step explanation:
Morning
mean: (8+15+16+18+18+20+21+21+21+56) / 10 = 21.4
median: 10 numbers + 1 / 2 =5.5th number is median. therefore that is 19 (numbers have to be in chronological order to start counting)
mode: (most common number) 21
Evening
mean: (3+11+12+14+22+22+30+33+34+47) / 10 = 22.8
median: 10 numbers + 1 / 2 =5.5th number is median. therefore that is 22
mode: 22
Find the value of $1000 deposited for 5 years in an account paying 8% annual interest compounded
Answer: 2%
Step-by-step explanation: i looked it up
Find the vertex and the
�
x- and
�
y-intercepts of the equation
�
=
�
2
−
2
�
−
8
y=x
2
−2x−8
Then, use the points to graph the parabola.
a) What is the vertex of the parabola? Enter your answer as an ordered pair.
Vertex
Preview
b) Identify the
�
x-intercept(s) of the parabola. Enter your answers as ordered pairs. Use a comma to separate answers as needed. If there are none, enter
None
None.
�
x-intercept
Preview
c) Identify the
�
y-intercept of the parabola. Enter your answer as an ordered pair.
�
y-intercept
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d) Use the points you found to graph the parabola.
The vertex of the parabola is at (1, -9). The x-intercepts are (-2, 0) and (4, 0), which are the points where the parabola crosses the x-axis. The y-intercept is (0, -8), which is the point where the parabola crosses the y-axis.
What is vertex ?
To find the vertex and the x- and y-intercepts of the equation y = x² - 2x - 8, we can start by completing the square to put the equation in vertex form:
y = x² - 2x - 8
y + 8 = x² - 2x
y + 8 + 1 = x² - 2x + 1
y + 9 = (x - 1)²
So, the vertex of the parabola is at (1, -9). The x-coordinate of the vertex is found by taking the opposite of the coefficient of x in the equation (which is -2) and dividing by two times the coefficient of x (which is 1), giving x = -(-2) / (2*1) = 1. The y-coordinate is found by substituting x = 1 into the equation.
What are the intercepts?
To find the x-intercepts, we set y = 0 and solve for x:
0 = x² - 2x - 8
0 = (x - 4)(x + 2)
So, the x-intercepts are at (-2, 0) and (4, 0).
To find the y-intercept, we set x = 0 and solve for y:
y = 0² - 2(0) - 8
y = -8
So, the y-intercept is at (0, -8).
To graph the parabola, we can use the vertex and intercepts we found.
The vertex is (1, -9), which is the lowest point on the parabola. The x-intercepts are (-2, 0) and (4, 0), which are the points where the parabola crosses the x-axis. The y-intercept is (0, -8), which is the point where the parabola crosses the y-axis.
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Find the lengths of the missing sides in the triangle. Use the 45° -45° - 90* Triangle Theorem. Write your answers as integers, in radical form, or as decimals rounded to the nearest tenth. The diagram is not drawn to scale
Answer:
[tex]y = 7[/tex]
[tex]x = 7 \sqrt{2} [/tex]
Select the correct answer. Which expression is equivalent to sin2x cos x
The expression that corresponds to the provided sentence is 2sinx cos²x.
Describe expression using an illustration.As an illustration, the expression x + y is one where both x and y have words with an addition function in between. There are two kinds of expressions in mathematics: numerical expressions, which only comprise integers, and algebraic expressions, which also include variables.
What is an Expression?In mathematics, an expression is a combination of one or more numbers, variables, and mathematical operations (such as addition, subtraction, multiplication, division, exponents, and roots) that can be evaluated or simplified to produce a single value.
For example, 2 + 3x is an expression that contains the variables x and the numbers 2 and 3, as well as the operations of addition and multiplication.
Another example is [tex](4a^2 - 3b)/c[/tex], which is an expression that contains the variables a, b, and c, as well as the numbers 4 and 3, and the operations of addition, subtraction, multiplication, and division.
sin2x cos x is equivalent to (2sinx cosx) cosx,
which simplifies to 2sinx cos²x.
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question-
Which of the following expressions is equal to sin(2x) 2(1 - cos^2(x))
Four tomatoes cost $3.40. What is the uint raet? pleease help
Answer: $0.85 per tomato
Step-by-step explanation:
To find the unit rate, we need to determine the cost of one tomato. We can do this by dividing the total cost of the four tomatoes by the number of tomatoes:
$3.40 ÷ 4 = $0.85
Therefore, the cost of one tomato is $0.85. The unit rate can also be expressed as a fraction, which is:
$0.85 per tomato, or 85 cents per tomato
Answer:
The Unit rate is 0.85
Step-by-step explanation:
You divide it by 4
−
0.1
+
�
1.7
=
−0.1+
1.7
y
=
0.9
0.9
Answer: Actually, the correct answer is:
−0.1 + 1.7 = 1.6
So, y = 1.6.
Step-by-step explanation:
π ≈ 3.14 and round your ansere to the nearest hundredth 7ft
Answer:
SE π ≈ 3.14 and round your answer to the nearest hundredth
Thus, for 3.14, the number in the hundredth place is 4. To round it, we will look at the third digit after the decimal, which is 0. We know any number lower than 5 is rounded down to zero, so we will round down and the rounded number will be 3.14. Conclusion: 3.14 rounded to the nearest hundredth is 3.14 itself.
Answer: 3.14
Step-by-step explanation: It’s not possible to round the answer so it would just be 3.14
A dog food producer reduced the price of a dog food. With the price at $10 the average monthly sales has
been 19000. When the price dropped to $7, the average monthly sales rose to 25000. Assume that monthly
sales is linearly related to the price.
What price would maximize revenue? $
So the price that would maximize revenue is $2.75.
What is equation?An equation is a mathematical statement that asserts the equality of two expressions. It typically contains one or more variables, which represent unknown values that can be solved for using algebraic methods. An equation can be represented symbolically using mathematical notation, such as using letters, numbers, and mathematical symbols like +, -, x, /, and =. Equations can be used to model and solve a wide variety of problems in mathematics, science, engineering, and other fields.
Here,
We can start by finding the linear equation that relates price and monthly sales. Let's use the point-slope form of a linear equation:
y - y1 = m(x - x1)
where y is the monthly sales, x is the price, m is the slope, and (x1, y1) is a point on the line.
Using the two points we have:
(10, 19000) and (7, 25000)
We can find the slope:
m = (y2 - y1) / (x2 - x1)
m = (25000 - 19000) / (7 - 10)
m = 2000
Now we have:
y - 19000 = 2000(x - 10)
Simplifying:
y = 2000x - 11000
This equation represents the relationship between price and monthly sales.
To maximize revenue, we need to find the price that gives the highest value for the product of price and monthly sales. In other words, we need to find the maximum value of the function:
R(x) = x * y = x(2000x - 11000)
Expanding and simplifying:
R(x) = 2000x² - 11000x
To find the maximum, we need to take the derivative and set it equal to zero:
R'(x) = 4000x - 11000 = 0
Solving for x:
4000x = 11000
x = 2.75
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What are the roots of 2x2-6x+18=0
Answer:
What are the roots of 2x2-6x+18=0
Step-by-step explanation:
I need help with this problem please...
Answer:
Step-by-step explanation:
34,000,000,000=4,005,000(1+0.041)^x
(1.041)^x=(34,000,000,000)/4,005,000
(1.041)^x=34,000,000/4,005
xlog(1.041)=log34,000,000-log 4005
=7.15348-3.60260
=3.55088
x=3.55088/log(1.041)=3.55088/0.01745
\approx 203.5~years
A hiker is climbing at a constant rate of 2.4 miles per hour. Part A If d represents the distance the hiker climbed and h represents the time in hours, write an equation to model the relationship. Explain your answer. ( please help-)