The total surface area of the given cylinder is; MA sq. units
What is the total surface area of the cylinder?The curved surface of a cylinder is also known as its lateral surface. The area of this lateral surface is referred to as the lateral surface area of the cylinder.
Meanwhile, the formula for the total surface area of the cylinder is;
Total surface area = Lateral surface area + base area
We are given;
lateral surface area = M sq. units
Area of base = A sq. units.
Thus;
Total surface area = M * A
Total surface area = MA sq. units
Read more about total surface area of the cylinder at; https://brainly.com/question/27440983
#SPJ1
How many solutions does the following system of equations have?
There is No solution the system of Equation have.
What is Slope?A line's slope is determined by how its y coordinate changes in relation to how its x coordinate changes. y and x are the net changes in the y and x coordinates, respectively. Therefore, it is possible to write the change in y coordinate with respect to the change in x coordinate as,
m = Δy/Δx where, m is the slope
Given:
Slope of Red line = Rise/ Run = 2/3
Slope of Blue line = Rise/ Run = 4/6 = 2/3
As, the two lines have the same slope and hence must be parallel, there are only two options: either they are separate lines, in which case there are no solutions, or they are the same exact line, in which case there are an endless number of solutions.
There are no answers since the two lines must be different since they are parallel and share the same slope but have separate y-intercepts.
Learn more about Slope here:
https://brainly.com/question/2366944
#SPJ1
does any1 know the answer to this?
Answer:
Check below under ‘explanation’
Step-by-step explanation:
5 Units up means every point will move 5 units in the upward direction along the y- axis. Therefore the x- coordinates of every point will remain the same and only their y-coordinates will change:
Q’ = [tex](-8, -4)[/tex]
R’ = [tex](-2, -4)[/tex]
S’ = [tex](-2, 4)[/tex]
T’ = [tex](-8, 4)[/tex]
Charlie reads quickly. He reads
1
3
7
1
7
3
1, start fraction, 3, divided by, 7, end fraction pages every
2
3
3
2
start fraction, 2, divided by, 3, end fraction minutes. Charlie reads at a constant rate.
Charlie reads [tex]2\frac{1}{7}[/tex] pages per minute.
What is a unitary method?A unitary method is a mathematical way of obtaining the value of a single unit and then deriving any no. of given units by multiplying it with the single unit.
Given, Charlie reads [tex]1\frac{3}{7}[/tex] pages every [tex]\frac{2}{3}[/tex] minute.
Therefore, His unit rate can be obtained by dividing the number of pages by the amount of time which is,
= [tex]\frac{1\frac{3}{7}}{\frac{2}{3}}[/tex] pages per minute.
= (10/7)×(3/2) pages per minute.
= 30/14 pages per minute.
= 15/7 pages per minute.
= [tex]2\frac{1}{7}[/tex] pages per minute.
Q. Charlie reads quickly he reads [tex]1\frac{3}{7}[/tex] pages every [tex]\frac{2}{3}[/tex] minute, His unit rate of page per minute would be?
learn more about the unitary method here :
https://brainly.com/question/28276953
#SPJ1
let a (x)=3x^3-4x^2+x, and b(x)=x^2+2
Divide polynomials with remainders
a(x) = b(x) * (3x² - 10x + 21) + (8x - 8)
Polynomial Division with RemaindersTo divide the polynomial a(x) by b(x), we can use long division as follows:
3x - 6
-------------------
x² + 2 | 3x² - 4x² + x
- (3x³ + 0x²)
---------------
-4x² + x
- (-4x² - 8)
-------------
8x - 8
Therefore, the quotient is 3x - 6, and the remainder is 8x - 8.
We can write the result of the division as:a(x) = b(x) * (3x - 6) + (8x - 8)
Alternatively, we can use synthetic division to get the same result:-2 | 3 -4 1 0
| -6 20 -42
|-------------
| 3 -10 21 -42
The numbers on the bottom row represent the coefficients of the quotient, which are 3, -10, 21. The last number on the bottom row, -42, is the remainder. Therefore, the quotient is:
3x² - 10x + 21
And the remainder is:8x - 8
We can write the same result as before:a(x) = b(x) * (3x² - 10x + 21) + (8x - 8)
Learn more about Polynomial Division with Remainders here:
https://brainly.com/question/11100304
#SPJ4
pls help fast..Special Triangle Segments
.. 1.Find the value of the variable given the triangles are similar. Answer the additional questions. Show all work. Name the property you used in your problem.
Answer: (Give brainliest)
a = 4.5
type of segment = Angle Bisector
property = property of XT/WY = XY/WZ
Step-by-step explanation:
If the angles of a triangle are in the ration of 3 : 4 : 5, find them.
Answer:
the angles of the triangle are 45 degrees, 60 degrees, and 75 degrees, and they are in the ratio of 3 : 4 : 5.
Step-by-step explanation:
Let's denote the angles of the triangle as 3x, 4x, and 5x, where x is a constant.
Since the sum of the angles of a triangle is 180 degrees, we can write the following equation:
3x + 4x + 5x = 180
Simplifying this equation, we get:
12x = 180
Dividing both sides by 12, we get:
x = 15
Therefore, the angles of the triangle are:
3x = 3(15) = 45 degrees
4x = 4(15) = 60 degrees
5x = 5(15) = 75 degrees
So the angles of the triangle are 45 degrees, 60 degrees, and 75 degrees, and they are in the ratio of 3 : 4 : 5.
The histogram shows the ages of cars sold at a car auction. What percent of the cars was less than 20 years old or more than 40 years old?.
By the analysis of histogram , 40% percent of the cars was less than 20 years old or more than 40 years old.
The histogram may be seen here. Each column lists the age range at the bottom and the number of automobiles in that age group on the left.
The number of vehicles in the first two columns from the left (age 0-9 and 10-19) and the last two columns (age > 40) must be added together to determine the percentage of vehicles with less than 20 years or more than 40 years of age (age 40-49 and 50-59).
The total number of requested vehicles is equal to 8 that is (3 + 2 + 0 + 3).
The total number of automobiles must now be determined (by adding the cars in each column): 3 + 2 + 8 + 4 + 0 + 3 = 20
The ratio of the number of automobiles of the specified age to the total number of cars must then be calculated and converted into a percentage.
[tex]\frac{8}{20}[/tex][tex]= 0.40 = 40%[/tex]
40% percent of the cars was less than 20 years old or more than 40 years old.
Learn more about histogram
brainly.com/question/30354484
#SPJ4
Fill the blank! if a residual is negative, then that data point lies _____________ the regression line.
If a residual is negative, then that data point lies below the regression line. In a regression analysis, the goal is to find the line that best describes the relationship between two variables.
The line is determined by finding the values of the slope and intercept that minimize the sum of the squared errors between the observed data points and the predicted values on the line.
The difference between the actual value of the dependent variable and the predicted value on the line is known as the residual. A residual represents the vertical distance between the observed data point and the regression line.
If the residual is positive, it means that the observed value is above the regression line, and if the residual is negative, it means that the observed value is below the regression line.
When a residual is negative, it means that the predicted value on the regression line is higher than the actual value of the dependent variable for that particular data point. In other words, the observed data point is lower than what we would expect based on the relationship described by the regression line.
This situation indicates that the regression line may not fit the data very well at that point, and it may be worth investigating further to see if there are other factors that may be affecting the relationship between the two variables.
In summary, a negative residual means that the observed data point lies below the regression line, and it indicates that the regression line may not be the best fit for that particular data point.
To learn more about regression click on,
https://brainly.com/question/12205795
#SPJ4
Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar.
Maria plots the following points on a coordinate grid. Then, she connects each plotted point to the previous one in the order shown to form a figure.
Maria uses a coordinate grid to display the following mathematical equation = 8√ 5 (5 + 2√5)
The term "mathematical expression"Mathematical expression is defined. A mathematical expression is the collection of mathematical symbols that results from the proper combination of numbers and variables using operations like add, subtract, multiplying, divisions, exponentiation, and other as-yet-unlearned operations and functions.
How should a mathematical expression be written?Mathematical operators like addition, negation, multiplication, and division are used to create expressions in writing. The mathematical equivalent of an English phrase is a correctly arranged set of mathematical characters that expresses a coherent idea.
Here, Points are,
⇒ (1, 3) (5, 7) (5, 5) (8, 9) (8, 3 ) (1, 3)
Clearly, It make pentagon.
And, Area of pentagon = 1/4 √5 (5 + 2√5) a²
Here, The side of pentagon = √ (7 - 3)² + (5 - 1)²
= √4² + 4²
= √32
= 4√2
Thus, Area of figure = 1/4 √5 (5 + 2√5) a²
= 1/4 √5 (5 + 2√5) (4√2)²
= 8√ 5 (5 + 2√5)
To know more about mathematical expression visit:
https://brainly.com/question/30350742
#SPJ1
Answer:Maria uses a coordinate grid to display the following mathematical equation = 8√ 5 (5 + 2√5)
The term "mathematical expression"
Mathematical expression is defined. A mathematical expression is the collection of mathematical symbols that results from the proper combination of numbers and variables using operations like add, subtract, multiplying, divisions, exponentiation, and other as-yet-unlearned operations and functions.
How should a mathematical expression be written?
Mathematical operators like addition, negation, multiplication, and division are used to create expressions in writing. The mathematical equivalent of an English phrase is a correctly arranged set of mathematical characters that expresses a coherent idea.
Here, Points are,
⇒ (1, 3) (5, 7) (5, 5) (8, 9) (8, 3 ) (1, 3)
Clearly, It make pentagon.
And, Area of pentagon = 1/4 √5 (5 + 2√5) a²
Here, The side of pentagon = √ (7 - 3)² + (5 - 1)²
= √4² + 4²
= √32
= 4√2
Thus, Area of figure = 1/4 √5 (5 + 2√5) a²
= 1/4 √5 (5 + 2√5) (4√2)²
= 8√ 5 (5 + 2√5)
Step-by-step explanation:
You have a job with a gross pay of $68282, what is the partially filled tax bracket?
The partial tax bracket is the 24% tax bracket.
How to get Tax Bracket?To determine your tax bracket, you need to know your taxable income, which is your gross pay minus any applicable deductions and exemptions. Based on the information provided, your taxable income is $68,282.
In the United States, the federal tax brackets for the tax year 2022 (for taxes filed in 2023) are as follows:
10% on taxable income from $0 to $9,950 for individuals12% on taxable income from $9,951 to $40,525 for individuals22% on taxable income from $40,526 to $86,375 for individuals24% on taxable income from $86,376 to $164,925 for individuals32% on taxable income from $164,926 to $209,425 for individuals35% on taxable income from $209,426 to $523,600 for individuals37% on taxable income over $523,600 for individualsBased on these tax brackets, you would be in the 24% tax bracket, since your taxable income is between $86,376 and $164,925.
However, it's important to note that the marginal tax rate, which is the rate applied to your last dollar of income, does not reflect the average tax rate you will pay on your entire taxable income. Your actual tax liability will depend on the total amount of your taxable income and any other applicable tax credits or deductions.
Learn more about tax bracket here: https://brainly.com/question/29196852
#SPJ1
Please help! 100 POINTS!!!!
Answer:
Answer is B.
[9 9]
[-3 2]
example: 3+6=9 9+0=9
5+ -8= -3 -2+4= 2
Branly please
please help!!!! i need help pls
The volumes of the objects are;
1) 252 in^3
2) 850 cm^3
3) 90 cm^3
4) 936 feet^3
5) 168 cm^3
6) 125 m^3
How do we find volume of a cube?The volume of a cube can be found by using the formula:
V = s^3
where V is the volume and s is the length of one side of the cube. In other words, the volume of a cube is equal to the length of one side of the cube raised to the power of 3.
1) Volume = 7 * 9 * 4 = 252 in^3
2) Volume = 50 * 17 = 850 cm^3
3) Volume = 30 * 3 = 90 cm^3
4) Volume = 6 * 12 * 13 = 936 feet^3
5) Volume = 56 * 3 = 168 cm^3
6) Volume = 5^3 = 125 m^3
Learn more about volume:https://brainly.com/question/1578538
#SPJ1
A week before a state election, a random sample of voters from City J and a random sample of voters from City K were taken. Of the 100 voters selected from City J, 65 indicated they were supporting a certain candidate for state senate. Of the 125 voters selected from City K, 75 indicated they were supporting the same candidate. Which of the following is the correct combined proportion, Pc, for the difference in population proportions for the two cities (J minus K) in their support for the candidate?
The proper combined percentage, Pc, for the disparity in population proportions between the two cities' support for the candidate (J minus K) is: 0.65−0.60 / √(0.62) (0.38) (1/100 + 1/125)
What is meant by proportion?An equation in which two ratios are made equal is known as a percentage. As an illustration, you could express the ratio as 1: 3 if there is 1 guy and 3 girls (for every one boy there are 3 girls). If two ratios or fractions are equivalent, it can be shown using the proportion formula. By dividing the supplied values, we may determine the value that is missing. You may write the percentage formula as a: A and d are the extreme terms, and b and c are the mean terms, according to the formula b::c: d = a/b = c/d.An equation in which two ratios are made equal is known as a percentage.Therefore, the correct answer is 0.65−0.60 / √(0.62) (0.38) (1/100 + 1/125)
To learn more about proportion, refer to:
https://brainly.com/question/12024093
#SPJ1
What is a 2 sample z-test?
Answer:
Two-Sample Z-Test. The Two-Sample Z-test is used to compare the means of two samples to see if it is feasible that they come from the same population. The null hypothesis is: the population means are equal.
Step-by-step explanation:
have a nice day.
what is the greatest common factor of 14 and 46
Answer: 2
Step-by-step explanation:
List all the factors:
14:
1 x 14
2 x 7
46:
1 x 46
2 x 23
Two is the only greatest number that can go into both 46 and 14.
What is the sum of the following temeratures? -10°C; 24 °C; -12°C;8°C; -1 °C
The sum of the given temperature measures as required is; -9°C.
What is the value of the addition of the give temperatures;It follows from the task content that the sum of the given temperature measures is to be determined.
Since the given temperatures are; -10°C; 24 °C; -12°C; 8°C; -1 °C.
Therefore, the sum of the temperatures can be determined as follows;
-10°C + 24 °C + -12°C + 8°C + -1 °C
= 9°C.
Ultimately, the sum of the given temperatures is; 9°C.
Read more on sum;
https://brainly.com/question/29666710
#SPJ1
A double ferris wheel is pictured below. A large rotating arm with diameter 20 is centered 14 meters off the ground, and completes one rotation every 11 minutes. At the end of each side of the large arm is a smaller wheel with diameter 6 meters, which completes one rotation about its center every 6 minutes.
If you board the ferris wheel at point P at time t = 0, and each wheel rotates in the direction shown by the arrows, find an equation for your height, H above ground after t minutes.
This equation reflects the passenger's height above the ground after t minutes: H = 14 + 3 + (10)sin(2πt/11) + (3)sin(2πt/6).
What is equation?An equation in mathematics is a statement that two mathematical expressions are equal. Equations are used to represent mathematical relationships and to describe the behavior of systems or processes. An equation typically consists of two sides, separated by an equal sign (=). On one side of the equal sign is the expression representing what is known or given, and on the other side is the expression representing what is being found or sought. Equations can be used to model real-world situations, to describe the behavior of mathematical functions, to solve problems, and to make predictions. They are an important tool in many areas of mathematics and science, including algebra, calculus, physics, and engineering.
Here,
The height of a passenger on a double Ferris wheel can be calculated by considering the combined effect of two rotations: the rotation of the large arm and the rotation of the smaller wheel.
Let's call the length of the small arm as x, which is equal to half of the diameter of the small wheel, i.e. x = 3.
At time t = 0, the passenger is at point P, which is x meters above the ground. As the large arm rotates, the height of the passenger will change according to the formula:
H = 14 + x + (20/2)sin(2πt/11)
Where H is the height above the ground after t minutes, and (20/2) is half of the diameter of the large arm.
Additionally, as the small wheel rotates, the height of the passenger will change according to the formula:
H = H + (3)sin(2πt/6)
So, combining both the effects, the height of the passenger on the Ferris wheel can be expressed as:
H = 14 + 3 + (10)sin(2πt/11) + (3)sin(2πt/6)
This equation represents the height of the passenger above the ground after t minutes: H = 14 + 3 + (10)sin(2πt/11) + (3)sin(2πt/6).
To know more about equation,
https://brainly.com/question/2228446
#SPJ1
Help me find the measurements please.
A sidewalk in the shape of two triangles, a rectangle, and a square was built around the edge of a building shown. What’s is the area of the sidewalk in square feet
Answer:144
Step-by-step explanation:
5. The table shows the number of pounds, x, of coffee ordered and the total price, y, in dollars, of each order. X 5 6 7 10 y $35 $42 $49 $70 Which best represents the units for the rate of change (rise over run) in the table? a.dollars. b.dollars per pound. c.pounds b.pounds per dollar
The table shows the number of pounds, x, of coffee ordered and the total price, y, in dollars, of each order. X 5 6 7 10 y $35 $42 $49 $70 Which best represents the units for the rate of change (rise over run) in the table? a.dollars. b.dollars per pound. c.pounds b.pounds per dollar
To find the units for the rate of change (rise over run), we need to determine the change in y (rise) divided by the change in x (run) for any two points in the table.
Let's choose the first and last points in the table, (5, $35) and (10, $70), respectively. The change in y is $70 - $35 = $35, and the change in x is 10 - 5 = 5. So the rate of change (rise over run) is:
rise/run = $35/5 = $7
Therefore, the best representation for the units of the rate of change is dollars per pound, as the rate of change indicates how much the price changes for every pound of coffee ordered. So the answer is (b) dollars per pound.
If 0° ≤ Θ≤ 360°, then find angle(s) Θ.
1) csc Θ = undefined
Answer:
that these angles are inclusive of 0° and 360° because the question states that 0° ≤ Θ ≤ 360°.
Step-by-step explanation:
If csc Θ is undefined, that means that the sine of the angle is zero, because csc Θ is the reciprocal of the sine function, and division by zero is undefined.
So we need to find all the angles where sin Θ = 0.
The sine function is equal to zero at multiples of 180 degrees, so the solutions to sin Θ = 0 are:
Θ = 0°, 180°, 360°
Note that these angles are inclusive of 0° and 360° because the question states that 0° ≤ Θ ≤ 360°.
The scores earned in a flower-growing competition are represented in the stem-and-leaf plot.
0 5
1 0, 3, 7
2 4, 6, 8
3 2
4
5 8 Key: 5|8 means 58
What is the appropriate measure of variability for the data shown, and what is its value?
The range is the best measure of variability, and it equals 18.5.
The IQR is the best measure of variability, and it equals 45.
The range is the best measure of variability, and it equals 45.
The IQR is the best measure of variability, and it equals 18.5.
For the given data, the best measure of variability is the interquartile range (IQR) and its value is 18.5.
What is variability?
The extent to which data points in a statistical distribution or data collection diverge or vary from the average value, as well as the extent to which these data points differ from one another, is practically by definition the concept of variability.
The given stem and leaf plot is:
stem leaf
0 5
1 0, 3,7
2 4,6,8
3 2
5 8
The value in the stem is the ten's place and the value in the leaf is the one's place.
So the scores are 05, 10, 13, 17, 24, 26, 28, 32 and 58.
Because extreme values and outliers have a smaller impact on the interquartile range than the complete data range, statisticians prefer using them to measure variability. To understand the centre and spread of your data, utilise the IQR along with a measure of central tendency, like the median.
Range for this data = 58 - 5 = 53.
To find the Inter Quartile Range (IQR), we first find the median.
Median = 24
So Q1 is the first quartile.
This is the median of the first half of the scores(5,10,13,17).
Q1 = 10+13 / 2 = 11.5
Q3 is the third quartile.
This is the median of the second half of the scores (26, 28, 32 58).
Q3 = 28+32 / 2 = 30
Now,
IQR = Q3 - Q1 = 30 - 11.5 = 18.5
Therefore for the given data, the best measure of variability is the interquartile range (IQR) and its value is 18.5.
To learn more about variability, follow the link.
https://brainly.com/question/12872866
#SPJ1
Answer:
Step-by-step explanation:
For the given data, the best measure of variability is the interquartile range (IQR) and its value is 18.5.
What is variability?
The extent to which data points in a statistical distribution or data collection diverge or vary from the average value, as well as the extent to which these data points differ from one another, is practically by definition the concept of variability.
The given stem and leaf plot is:
stem leaf
0 5
1 0, 3,7
2 4,6,8
3 2
5 8
The value in the stem is the ten's place and the value in the leaf is the one's place.
So the scores are 05, 10, 13, 17, 24, 26, 28, 32 and 58.
Because extreme values and outliers have a smaller impact on the interquartile range than the complete data range, statisticians prefer using them to measure variability. To understand the centre and spread of your data, utilise the IQR along with a measure of central tendency, like the median.
Range for this data = 58 - 5 = 53.
To find the Inter Quartile Range (IQR), we first find the median.
Median = 24
So Q1 is the first quartile.
This is the median of the first half of the scores(5,10,13,17).
Q1 = 10+13 / 2 = 11.5
Q3 is the third quartile.
This is the median of the second half of the scores (26, 28, 32 58).
Q3 = 28+32 / 2 = 30
Now,
IQR = Q3 - Q1 = 30 - 11.5 = 18.5
Therefore for the given data, the best measure of variability is the interquartile range (IQR) and its value is 18.5.
I totally didnt copy - 0
2x − 5y + 3x = 8
3x − y + 4z=7
x+3y + 2x = -3
Answer:=3
Step-by-step explanation: For 2x-5y=3 substitute
Javier is standing at a distance from a flagpole. He sights the bottom of the flagpole at a 4°
angle of depression and the top of the flagpole at a 25°
angle of elevation. If Javier is 6 feet tall, what is the total height, to the nearest foot, of the flagpole?
Answer: To find the height of the flagpole, we can use the fact that the angles of depression and elevation are complementary angles, meaning that they add up to 90°.
Let's call the height of the flagpole "h". Then, we have:
h - 6 = h * tan(4°) (the height difference between Javier and the bottom of the flagpole)
and
h = 6 + h * tan(25°) (the height of the top of the flagpole as seen by Javier).
By substituting the first equation into the second, we can find h:
h = 6 + h * tan(25°)
h = 6 + h / tan(65°)
h * tan(65°) = 6 + h
h * tan(65°) - h = 6
h = 6 / (tan(65°) - 1)
Using a calculator, we find that h = approximately 43.3 feet. Rounding to the nearest foot, the height of the flagpole is 43 feet.
Step-by-step explanation:
Lorraine prepared a 2.5-gallon pot filled with tomatoes to be canned in jars. Each jar will hold 1.25 quarts of tomatoes. If 1 gallon equals 4 quarts, how many jars can Lorraine fill?
If 1 gallon equals 4 quarts then Lorraine can fill total 8 jars.
What is Unit Conversion?The same attribute is expressed using a unit conversion, but in a different unit of measurement. For instance, time can be expressed in minutes rather than hours, and distance can be expressed in kilometres, feet, or any other measurement unit instead of miles.
Given:
Lorraine prepared a 2.5-gallon pot filled with tomatoes to be canned in jars.
First, we need to convert the 2.5 gallons of tomatoes to quarts.
As, 1 gallon = 4 quarts then
2.5 gallons = 2.5 x 4 = 10 quarts.
Now, number of quarts per jar
= 10 quarts / 1.25 quarts/jar
= 8 jars.
Learn more about Unit Conversion here:
https://brainly.com/question/28809926
#SPJ9
A sphere has a surface area of 100cm^2. Calculate the volume of the sphere
The radius of the sphere is 2.82 cm. Then the volume of the sphere will be 94.05 cubic cm.
What is the volume of the sphere?Let r be the radius of the sphere. Then the volume of the sphere will be given as,
V = 4/3 πr³ cubic units
The surface area of the sphere is 100 square cm. Then the radius of the sphere is given as,
100 = 4πr²
r = 2.82 cm
Then the volume of the sphere is given as,
V = 4/3 x π x 2.82³
V = 1.33 x 3.14 x 22.465
V = 94.05 cubic cm
The volume of the sphere will be 94.05 cubic cm.
More about the volume of the sphere link is given below.
https://brainly.com/question/9994313
#SPJ9
Marcus is 30 years younger than his mother. In 5 years, Marcus' age will be 1/4 of his mother's age. Find Marcus' mother's current age
Marcus is 30 years younger than his mother. Marcus' mother's current age is 35 years old.
To find Marcus' mother's current age, we need to use a system of equations.
Let:
x = Marcus' current age
y = his mother's current age.
We can write two equations based on the information given:
x = y - 30 (Marcus is 30 years younger than his mother)
x + 5 = 1/4(y + 5) (In 5 years, Marcus' age will be 1/4 of his mother's age)
Now we can substitute the first equation into the second equation and solve for y:
y - 30 + 5 = 1/4(y + 5)
y - 25 = 1/4y + 5/4
(3/4) y = 105/4
y = 105/3 = 35
So Marcus' mother's current age is 35 years old.
Learn more about equation here:
https://brainly.com/question/30654064
#SPJ11
Which events are mutually exclusive?
Given the following historical demand and forecast, calculate the Tracking Signal in Week 3:
Week 1 Demand: 50 Forecast: 49
Week 2 Demand: 54 Forecast: 56
Week 3 Demand: 58 Forecast: 60
The Tracking Signal in Week 3 is -1.8.
The Tracking Signal in Week 3 can be calculated by using the following formula:
Tracking Signal = (Sum of Forecast Errors) / (Mean Absolute Deviation)
First, we need to calculate the forecast errors for each week:
Week 1 Forecast Error = Actual Demand - Forecast = 50 - 49 = 1
Week 2 Forecast Error = Actual Demand - Forecast = 54 - 56 = -2
Week 3 Forecast Error = Actual Demand - Forecast = 58 - 60 = -2
Next, we need to calculate the Mean Absolute Deviation (MAD):
MAD = (|1| + |-2| + |-2|) / 3 = (1 + 2 + 2) / 3 = 5 / 3 = 1.67
Finally, we can calculate the Tracking Signal:
Tracking Signal = (1 + -2 + -2) / 1.67 = -3 / 1.67 = -1.8
Therefore, the Tracking Signal in Week 3 is -1.8.
Learn more about Tracking Signal:
https://brainly.com/question/29345047
#SPJ11
A line passes through the points ( – 8,9) and ( – 2, – 9). Write its equation in slope-intercept form.
The slope-intercept form of the equation of the given line which passes through the points ( – 8,9) and ( – 2, – 9) is:
y = -3x - 15
What is meant by slope-intercept form of the line equation?
The slope (m) and the y-intercept (b) of a line are highlighted in the slope-intercept form of linear equations (y=mx+b). One of the most popular ways to represent a line's equation is in the slope-intercept form of a straight line. When the slope of the straight line and the y-intercept( the y-coordinate of the point where the line intersects the y-axis) are known, the slope-intercept formula can be used to determine the equation of a line. The equation of a line is the equation that each point on the line fulfils.
Given the line passes through the points (– 8,9) and ( – 2, – 9).
When only two points on the line are given, the equation of the line is:
y - y₁ = m ( x - x₁)
m = slope = [tex]\frac{y_2 - y_1}{x_2-x_1}[/tex] = (-9 - 9)/ ( -2 -(-8)) = -18/ 6 = -3
Substituting,
y - 9 = -3 ( x - ( -8))
y - 9 = -3x -24
y = -3x - 15
Therefore the slope-intercept form of the equation of the given line is:
y = -3x - 15
To learn more about slope-intercept, follow the link.
https://brainly.com/question/22057368
#SPJ1