The coordinates of the centroid of triangle ABC are given as follows:
(-1, 4).
How to obtain the coordinates of the centroid of the triangle?The coordinates of the centroid of a triangle are obtained finding the mean of the coordinates of the three vertices of the triangle.
This means that the x-coordinate of the centroid of triangle ABC is given as follows:
(-1 + 2 - 4)/3 = -1.
(mean of the x-coordinates of each of the three vertices).
The y-coordinate of the centroid of triangle ABC is given as follows:
(10 + 1 + 1)/2 = 4.
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Which point lies on the y axis graph i ready
The points that lie on the y-axis of the graph have a x-coordinate of zero.
Hence the format of the point is of:
(0,y).
How to define the ordered pair?The general format of an ordered pair is given as follows:
(x,y).
For the x-coordinate, we have that:
If it is positive, the point is x units right of the origin.If it is negative, the point is x units left of the origin.On the y-axis, the point does not move horizontally, just vertically, hence the points that lie on the y-axis of the graph have a x-coordinate of zero, and the format of the point is given as follows:
(0,y).
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Solve for c.
a−b+c‾‾‾‾‾‾‾‾‾√=3
A. c=3−a+b
B. c=9−a‾√+b‾√
C. c=3−a‾√+b‾√
D. c=9−a+b
Answer:
The correc answer is Option A.
I NEED HELP WITH THIS ASAP
I am really struggling with this:
The region is function determining the total sales and the number of boxes covered to make the desired sale. The inequality representing the function is f(b) ≤ 3.75b + 25.
What are inequalities?In mathematics, inequalities specify the connection between two non-equal numbers. Equal does not imply inequality. Typically, we use the "not equal sign" to indicate that two values are not equal. But several inequalities are utilized to compare the values and determine whether they are less than or higher than.
a. The region represents the function determining the total sales and the number of boxes covered in order to make the desired sale.
b. The inequality that represents the area under the graph up until the point of intersection is given by:
f(b) ≤ 3.75b + 25
The less than equal to sign is used, as the area used lies below the curve.
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Please help me with this. Rule: y= x-1/4 1/4 13/4 2
The values of y are 0, 3 and 7/4 respectively. The solution has been obtained by using the substitution method.
What is substitution method?
The substitution approach is one of the algebraic methods for resolving simultaneous linear equations. It entails swapping any variable to change its value from one equation to another. By doing this, two linear equations are merged into one straightforward equation with one variable.
We are given a rule which is that y= x-1/4
Various values of x are given
So, in order to find the values of y, we will use the substitution method.
When x=1/4, then
⇒y=1/4-1/4
⇒y=0
When x=13/4, then
⇒y=13/4-1/4
⇒y=12/4
⇒y=3
When x=2, then
⇒y=2-1/4
⇒y=8/4-1/4
⇒y=7/4
Hence, the values of y are 0, 3 and 7/4 respectively.
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The complete question has been attached below
X/4 = 20
please help
Answer:
x = 80
Step-by-step explanation:
Isolate the variable, x. Note the equal sign, what you do to one side, you do to the other. Note that x is being divided by 4. To isolate x, do the opposite. Multiply 4 to both sides of the equation:
[tex]\frac{x}{4} = 20\\(\frac{x}{4} ) * 4 = (20) * 4\\x = 20 * 4\\x = 80[/tex]
x = 80 is your answer.
~
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Let P (3,6) be a point on a figure and let P be the corresponding point on the image. The figure is dilated by a scale factor of 3. What are the coordinates of p
When the figure is dilated by a scale factor of 3, the original coordinates of P are (1,2).
What is coordinates?A coordinate system in geometry is a system that uses one or more numbers, or coordinates, to determine the position of points or other geometric elements on a manifold such as Euclidean space. The ordinate is the distance of a point from the x-axis scaled with the y-axis. Coordinates are the abscissa and ordinate combined. The study of algebraic equations on graphs is known as coordinate geometry. Plotting points, lines, and curves on an x and y axis is an example of coordinate geometry. Make corrections.
Here,
scale factor=3
dilated point=(3,6)
original coordinates=(3/3,6/3)
=(1,2)
The original coordinates of P are (1,2) when figure is dilated by a scale factor of 3.
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a survey of 69 people in kansas city gave the following results: 26 were fans of the kansas city chiefs 36 were fans of the kansas city royals 43 were fans of the sporting kansas city 18 were fans of the chiefs and royals 13 were fans of the chiefs and sporting kc 20 were fans of the royals and sporting kc 6 were fans of none of these teams. how many people were fans of the chiefs or royals but not sporting kc?
17 people were fans of the Chiefs or Royals but not Sporting KC.
What is algebra ?
Algebra is a branch of mathematics in which letters and symbols are used to represent numbers and quantities in equations and formulas. The basic operations of algebra include addition, subtraction, multiplication, and division, as well as the manipulation of exponents and roots.
Have given ,
26 people were fans of the Kansas City Chiefs
36 people were fans of the Kansas City Royals
18 people were fans of both the Chiefs and the Royals
13 people were fans of the Chiefs and Sporting KC
20 people were fans of the Royals and Sporting KC
6 people were fans of none of the teams
The principle of inclusion and exclusion says that the number of people who are fans of the Chiefs or the Royals but not Sporting KC is:
(26 + 36) - (18 + 13 + 20) + 6 = 62 - 51 + 6 = 17
So, 17 people were fans of the Chiefs or Royals but not Sporting KC.
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A parking lot is 80 feet wide by 120 feet long. If the length and width are increased by the same length, what polynomial represents the area of the new lot? What is the new area of the increase is 25 feet?
The polynomial that represents the area of the new lot is x² +200x +9600 and the new area of the increase is 25 feet is 15225 ft²
What is Polynomial?A polynomial is an expression made up of variables (also known as indeterminates) and coefficients that only employs the addition, subtraction, multiplication, and non-negative integer exponents of the variables.
A single variable, x, is used as the only variable in the indeterminate polynomial x² - 4x + 7. Polynomials are used in many areas of science and mathematics.
They are employed in calculus and numerical analysis to approximate other functions, as well as in the definition of polynomial functions, which are used in a variety of fields, from basic chemistry and physics to economics and social science.
Simple word problems to sophisticated scientific conundrums can all be represented using polynomial equations.
Polynomials are used to create algebraic varieties in higher mathematics.
Area = Length x Breadth
Area =(80 + x)x(120 + x) = x² +200x + 9600
Area = (80 + 25)x(120 + 25) = 105x145
Area = 15225 ft²
Therefore, the new area of the plot is 15225 ft²
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Company A has 18 machines that each produce t toy cars per hour. Company B has 15 machines that each produce 75 more toy cars per hour than each of Company A’s machines. In order for the companies to produce an equal number of toy cars, how many toy cars does each machine at Company A need to produce per hour?
Write an equation that can be used to solve the problem.
Part B
Feedback
Incorrect
2 tries left. Please try again.
Fill in the blank question.
Company A’s machines each produce
toy cars per hour.
Company B’s machines each produce
toy cars per hour.
The system of equations is solved and the number of toy cars of each machine of Company A should produce to have equal number of toy cars is t = 375 toys
What is an Equation?Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let the number of toy cars produced by Company A be A
Let the number of toy cars produced by Company B be B
The number of machines for A = 18 machines
The number of machines for B = 15 machines
The number of toy cars produced by A = t cars
The number of toy cars produced by B = 75 + t
And ,
The total number of toy cars of A = 18 x t
The total number of toy cars of B = 15 ( 75 + t )
So , in order for both the company's to have the same toys is
18t = 15 ( 75 + t )
On simplifying the equation , we get
18t = 1125 + 15t
Subtracting 15t on both sides of the equation , we get
3t = 1125
Divide by 3 on both sides of the equation , we get
t = 375 toys
Hence , the equations is A = 18t and B = 15 ( 75 + t )
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то 13.) Solve the right triangle. Round answers to the nearest tenth. To receive full credit you must show all work. R S 57° 15 T RT = RS= m/T=
Answer:
RT = 17.9
RS = 9.7
m<T = 33°
Step-by-step explanation:
sin R = opp/hyp
sin R = ST/RT
sin 57° = 15/RT
RT = 15/sin 57°
RT = 17.9
cos R = adj/hyp
cos R = RS/RT
cos 57° = RS/17.88544939
RS = 17.88544939 × cos 57°
RS = 9.7
m<R + m<S + m<T = 180°
57° + 90° + m<T = 180°
m<T = 33°
The equation, 3(3x - 10) = 5(x +10) shows the relationship between the perimeter of an equilateral triangle and the perimeter of a regular pentagon.What is the perimeter of the pentagon?
The equation, 3(3x - 10) = 5(x +10) shows the relationship between the perimeter of an equilateral triangle and the perimeter of a regular pentagon.What is the perimeter of the pentagon?
100
20
50
150
$4700 accumulating to $5994.76, compounded monthly for 5 years. What is the interest rate %
48.76%
Step-by-step explanation:Compound interest describes interest on the principal plus interest.
Compound Interest Formula
The formula to find compound interest is [tex]A=P(1+\frac{r}{n})^{nt}[/tex]. In the formula:
A is the total amount, P is the principal, r is the rate as a decimal, n is how often interest is compounded,t is time.We can plug in our information to find the rate.
Solving For Interest Rate
First, let's rewrite the equation with our information. Note that for simplicity I will write rounded values for each step, but in reality, no rounding should be done until the last step.
[tex]5994.76 = 4700(1+\frac{r}{12})^{12*5}[/tex]Then, simplify the exponent and divide both sides by 4700.
[tex]1.275=(1+\frac{r}{12} )^{60}[/tex]Take the 60th root of both sides.
[tex]1.004=(1+\frac{r}{12} )[/tex]Subtract 1 from both sides.
[tex]0.004063=\frac{r}{12}[/tex]Finally, multiply both sides by 12.
r = 0.04876This means that the rate is 0.04876. We can multiply this by 100 to get the rate as a percentage. The interest rate is 48.76%.
a father wants to divide rs 200 into two parts between two sons such that by adding three times the smaller part to half of the larger part, then this will always be less than rs 200. how will he divide this amount?
The sum of money that can be divided between two parts = Rs 200
Adding three times the smaller part to half of the larger part then its will always be less than Rs 200
Let The smaller part = Rs S
The larger part = Rs L
The sum of parts = Rs 200
Larger + Smaller = Rs 200
L+S=200---------------(1)
And, Adding three times the smaller part to half of the larger part then the result will always be less than Rs 200
(3S+1/2× L)-200 = 0
3S+ L/2=200
6S+L=400 --------(2)
Solving eq 1 and eq 2
(6S+L)-(L+S)=400 - 200
(6S-S )+(L-L )=200
5S+0=200
S = 200/4
∴Smaller = S=Rs40
Now, Plug the value of S into eq 1
L+S = Rs 200
L+40 = Rs 200
L = 200 - 40
L = Rs 160
Larger = L= Rs160
Hence, the larger part is Rs 160 and the smaller part is Rs 40
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find the lenght of an edge of the cube with a volume of 72 cubic centimeters
The formula for a cube's volume is L * W * H.But because it is a cube, its length, breadth, and height are all equal and correspond to one of the cube's edges. The answer is 2.7 equals 3 centimeters.
Find the length of an edge of the cube ?The formula for a cube's volume is L * W * H.But because it is a cube, its length, breadth, and height are all equal and correspond to one of the cube's edges.Finding the cube root of the volume will allow you to determine the length of a cube's edge.
A cube's edge measures 3 centimeters in length and has a volume of 27 cubic centimeters.
Six square faces make up the three-dimensional shape of a cube.
It has 12 edges and 8 vertices.
Volume of a cube is equal to the length of an edge3
In order to calculate the length of an edge, the cube root of the cube's volume must be known if the cube's volume is given.
Find the cube root of 27 to get the length of an edge.
2.7 equals 3 centimeters
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A box of cereal is reduced by 30%. The new box contains 35 ounces. How many ounces did the old box contain?
The old box of cereal contained 24.5 ounces.
Take 30% of the original box of cereal.
To find 30% of a number, multiply the number by 0.3.
35 ounces x 0.3 = 10.5 ounces
Subtract 10.5 ounces from 35 ounces.
35 ounces - 10.5 ounces = 24.5 ounces
Answer: The old box of cereal contained 24.5 ounces.
When you take a single number and multiply it by several, you are multiplying. A 5 multiplied by a 4 results in 20 (5 + 5 + 5 + 5). We multiplied the number five by four times. Due to this, multiplication is occasionally referred to as "times."
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Chapter 5 30 Glencoe Algebra 1 5-5 Study Guide and Intervention (continued) Inequalities Involving Absolute Value Solve Absolute Value Inequalities (>) When solving inequalities that involve absolute value, there are two cases to consider for inequalities involving > (or ≥). Remember that inequalities with or are related to unions.
When solving absolute value inequalities involving the greater than symbol (>) or greater than or equal to symbol (≥), we have to consider two cases absolute value expression greater than the constant and less than the constant.
The absolute value expression is greater than the constant:
|x| > c or |x| ≥ c
In this case, we can split the solution set into two parts: x < -c and x > c. The solution is all real numbers less than -c and all real numbers greater than c.
The absolute value expression is less than the constant:
|x| < c or |x| ≤ c
In this case, we can split the solution set into two parts: -c < x < c. The solution is all real numbers between -c and c, excluding -c and c.
For example, consider the inequality |x| > 2. The solution is x < -2 or x > 2, so the solution set is {x | x < -2 or x > 2}.
--The question is incomplete, answering to the question below--
"When solving inequalities that involve absolute value, there are two cases to consider for inequalities involving >. Explain"
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16x² + y² - 128x - 20y + 292 = 0
Find the focal radius of the ellipse and the points at which the two foci sit.
The focal radius of the ellipse of which the two foci seat are:
(-8 + 6√3, 10) (-8 - 6√3, 10).How to solve for the focal radiusAn ellipse can be represented in the standard form as (x/a)² + (y/b)² = 1, where (a,b) is the center of the ellipse and a and b are the semi-major and semi-minor axes respectively.
Given the equation of the ellipse:
16x² + y² - 128x - 20y + 292 = 0
To put it in the standard form, we have to complete the square and then divide both sides by the constant on the right-hand side.
First, we complete the square by adding and subtracting (128/2)² and (20/2)² respectively:
16x² - 128x + (128/2)² + y² - 20y + (20/2)² = 292 + (128/2)² + (20/2)²
Then, we divide both sides by 292:
(16x² - 128x + (128/2)²)/292 + (y² - 20y + (20/2)²)/292 = 1
On simplifying we get:
(4x - 8)²/144 + (y - 10)²/36 = 1
Now we have the standard form of the equation of the ellipse and we can find the semi-major and semi-minor axis and the center of the ellipse.
The semi-major axis is equal to the square root of the coefficient of x squared (144) and the semi-minor axis is equal to the square root of the coefficient of y squared (36).
The center of the ellipse is (-8, 10) and the semi-major and semi-minor axis are 12, 6 respectively.
The focal radius is the distance between the center and the focus. The focal radius is equal to the square root of the semi-major axis squared minus the semi-minor axis squared.
Focal radius = √(a² - b²) = √(144-36) = √108 = 6√3
The two foci of the ellipse sit on the x-axis, symmetric about the center of the ellipse. The foci are located at (-8 ± 6√3, 10).
Therefore, the two foci of the ellipse are at (-8 + 6√3, 10) and (-8 - 6√3, 10).
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-4x + -2y = -12 4x + 8y = -24 Solve each system of equations. Show all your work.
Answer: x=6, y=-6
Step-by-step explanation:
-4x + -2y = -12 (a)
4x + 8y = -24 (b)
(a)+(b)= -4x+4x+8y+(-2y)=-12+(-24)
6y= -36
y=-6
put y=-6 into formula (a)
-4x+12=-12
-4x= -24
x=6
How much interest will you pay over the life of a $220,000 30-year loan at 8 percent with monthly payments of $1,614.28?
The total interest that will be paid over the life is $5,28,000. The solution has been obtained using arithmetic operations.
What are arithmetic operations?
For all the real numbers, there are four basic mathematical operations which are:
1. Addition(‘+’) wherein the sum of the numbers is obtained.
2. Subtraction(‘-’) wherein the difference of the numbers is obtained.
3. Multiplication(‘×’) wherein the product of the numbers is obtained.
4. Division(‘÷’) wherein the quotient of the numbers is obtained.
We are given 30 year loan amounting $220,000 at interest rate of 8 percent with monthly payments of $1,614.28.
The annual interest comes out to be
8% of $220,000 = $17,600
The total interest = $17,600 * 30 = $5,28,000
Hence, the total interest that will be paid over the life is $5,28,000.
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The constant of proportioality between the number of children (c) on a field trip and the number of teachers (t) on the trip is 14/3
The constant of proportionality is known to be the ratio of two proportional values that is said to be in a constant value.
What is constant of proportionality?This means that for every 3 teachers present on the trip, there will be 14 children. This proportion can be represented by the equation c= (14/3)t, where c represents the number of children and t represents the number of teachers. This proportionality can be used to predict the number of children on a trip based on the number of teachers, or vice versa. For example, if there are 9 teachers on a trip, we can use the equation to predict that there will be (14/3) * 9 = 42 children on the trip. This proportionality also implies that as the number of teachers increases, the number of children will also increase in the same proportion. It is represented as a number, often represented by the letter "k", that represents the ratio between the two variables. In a proportion, the two variables are related in a fixed ratio, meaning that if one variable increases, the other variable will also increase in the same proportion. For example, if there is a constant of proportionality of 2 between the number of apples (a) and the number of oranges (o), it means that for every 2 apples there are, there will be 1 orange.To learn more about proportionality refer to:
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you are on a gameshow participating in a challenge in the downtown portion of a city. you are told that destination a is 20 miles from your starting point and that destination b is 15 miles (both measured as the crow flies). if you are able to travel only in straight lines along the main directions (north, south, east and west), is it possible that you have to travel a greater distance to reach point b than to reach point a?
Yes, it is possible that you have to travel a greater distance to reach point b than to reach point a.
A straight line is a geometric concept that refers to a line that extends indefinitely in two directions without any curvature. It is the shortest distance between two points in Euclidean space and it is represented by an equation in the form of y = mx + b, where m is the slope and b is the y-intercept.
As both destinations, A and B are measured as the crow flies, or in a straight line, and you are able to travel only in straight lines along the main directions (north, south, east, and west), it is possible that the path to point B includes more turns or obstacles, such as buildings or rivers, that require you to travel further in order to reach the destination.
That's why it is possible that you have to travel a greater distance to reach point B than to reach point A.
Therefore Yes, it is possible that you have to travel a greater distance to reach point b than to reach point a.
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a and b are parallel. Find the missing angles.
Step-by-step explanation:
....................
Answer:
Step-by-step explanation:
top=125 degrees
second from the top= 55 degrees
3rd=35 degrees
4th=55 degrees
5th=125 degrees
Which inequality represents the situation?
Tori lives less than 3 miles from the school.
a.
c.
t<3
t> 3
ts3
tz3
b.
An inequality represents the situation is: t < 3
The correct answer is an option (a) t < 3
We know that an inequality is a mathematical statement that represents the inequalities between two algebraic expressions with two variables .
It is an unequal relation between two algebraic expressions.
The symbols used between the expression:
less than ‘<’,
greater than ‘>’,
less than or equal to ‘≤’
greater than equal to ‘≥’,
Let t represents the distance between Tori's house and the school.
Tori lives less than 3 miles from the school.
This means, the distance t is less than 3 miles
so, we get an inequality t < 3
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The table shows some ordered pairs that belong to quadratic function h. What is the range of h?
Answer:
The range of a function is the set of all possible outputs (or y-values) of the function. To find the range of h, we can look at the y-values in the table.
The y-values for h(x) are: -27, -13, -3, 3, 5, 3, -3
The range of h is the set of all these y-values. We can see that the lowest y-value is -27 and the highest y-value is 5. So, the range of h is {-27,-13,-3,3,5}
Therefore, the range of h is from -27 to 5.
2. Write an inequality statement whose solution is an empty set.
3. Write an inequality statement whose solution is some but not all real numbers. Graph the solution on a number line.
4. Write an inequality statement whose solution is all real numbers. Graph the solution on a number line.
5. Write an inequality statement whose solution is exactly one number. Graph the solution on a number line.
The inequality statements are 1 < 0, x > 0, x = x and x = 5
How to determine the inequality statementsAn empty set
An empty set is a set with no elements.
An inequality statement with no solutions results in an empty set.
One example of an inequality statement with no solutions is 1 < 0.
Some solution but not all real numbers
An inequality statement whose solution is some but not all real numbers is x > 0.
The solution set is the set of all positive real numbers, excluding 0.
The number line is represented as follows
|------------------------------------| 0 |----------------------------- |
All real numbers
A statement whose solution is all real numbers is x = x
The solution set is the set of all real numbers
The number line is represented as follows
|--------------------------- | ... | -2 | -1 | 0 | 1 | 2 | ... |
Exactly one number
A statement whose solution is exactly one number is x = 5.
The solution set is the set containing only the number 5
The number line is represented as follows
|--------------------------- | ... | 4 | ... |
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On a certain hot summer's day, 560 people used the public swimming pool. The daily prices are $1. 50 for children and $2. 00 for adults. The receipts for admission totaled $991. 0. How many children and how many adults swam at the public pool that day?
If the daily prices are $1.50 for children and $2.00 for adults , then the number of adults swam at public pool is 302 and number of children who swam at public pool is 258 .
let the number of children swam at swimming pool be = c ;
let the number of adults swam at swimming pool be = a ;
the total number of person who used the swimming pool is = 560 ;
the equation is ⇒ c + a = 560 ...equation(1) ;
the price for 1 child is $1.50 and price for 1 adult is = $2 ;
the total money collected can be written as :
= (price of children tickets)×(number of children that swam)+(price of adults tickets)×(number of adults that swam) ;
⇒ 1.5c + 2(560 - c) = 991 ;
⇒ 1.5c + 1120 - 2c = 991 ;
⇒ -0.5c = 991 - 1120 ;
⇒ -0.5c = -129 ;
⇒ c = 129/0.5 = 258 ;
So , adults (a) = 560 - 258 = 302 ;
Therefore , the number of adults are 302 and number of children are 258 .
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Three friends are put their money together to buy a $58 gift. Joe put in twice the amount of money as Sara. Lisa put
in ten dollars more than Sara. How much money did Lisa and Joe put towards the gift?
Answer:
I'm doing this to complete one of the steps. good luck my friend
Step-by-step explanation:
describe the interval(s) on which the function is continuous. (enter your answer using interval notation.)
(a) [tex]\frac{x}{x^2 + x + 3}[/tex] will be a continuous function in interval (- ∞ , ∞), (b) [tex]\frac{x + 7}{\sqrt{x} }[/tex] will be a continuous function in interval (0, ∞), and (c) [tex]x\sqrt{x + 6}[/tex] will be a continuous function in interval [-6, ∞).
(a) [tex]\frac{x}{x^2 + x + 3}[/tex]
x² + x + 3 will never be zero.
so it will be a continuous function all the time or in the interval (- ∞ , ∞).
(b) [tex]\frac{x + 7}{\sqrt{x} }[/tex]
in this function x cannot be negative or zero.
so the function will be a continuous function for x >0
or in the interval (0, ∞)
(c) [tex]x\sqrt{x + 6}[/tex]
for this function, the value of (x + 6) cannot be a negative value.
or x + 6 >=0 or x >= -6
so the function will be continuous in the interval [-6, ∞)
Therefore, (a) [tex]\frac{x}{x^2 + x + 3}[/tex] will be a continuous function in interval (- ∞ , ∞), (b) [tex]\frac{x + 7}{\sqrt{x} }[/tex] will be a continuous function in interval (0, ∞), and (c) [tex]x\sqrt{x + 6}[/tex] will be a continuous function in interval [-6, ∞).
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The complete question is:
describe the interval(s) on which the function is continuous. (enter your answer using interval notation.)
(a) [tex]\frac{x}{x^2 + x + 3}[/tex]
(b) [tex]\frac{x + 7}{\sqrt{x} }[/tex]
(c) [tex]x\sqrt{x + 6}[/tex]
Olivia flips a coin and rolls a number cube with sides labeled 1, 2, 3, 4, 5, and 6. After 90 trials of the experiment, the relative frequency of flipping heads and rolling a number less than 3 is 2/15 . What is the difference between the number of expected outcomes and the number of actual outcomes?
The difference between the number of expected outcomes and the number of actual outcomes is 1/30.
What is the difference?
The expected outcome of flipping heads and rolling a number less than 3 = probability of flipping a head x probability of rolling a number less than 3
Probability of flipping a head = number of sides that are heads / total number of sides = 1/2
Probability of rolling a number less than 3 = number of sides that are less than 3 / total number of sides = 2/6 = 1/3
The expected outcome = 1/2 x 1/3 = 1 /6
The difference =
[tex]\frac{1}{6} - \frac{2}{15}[/tex]
[tex]\frac{15 - 12}{90}[/tex] = [tex]\frac{3}{90}[/tex] = [tex]\frac{1}{30}[/tex]
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if f(x) = 4x^3+24x^2+41x+15 and x+3 is a factor of f(x) then find all of the zeros of f(x) algebraically
All of the zeros of f(x) algebraically are; x = -3, x = -1/2, x = -5/2
How to find the zeros of the polynomial?The zeros of a polynomial p(x) are defined as all the x-values that make the polynomial equal to zero.
The polynomial is;
f(x) = 4x³ + 24x² + 41x + 15
To find the x-intercept, we will equate the polynomial to zero to get;
4x³ + 24x² + 41x + 15 = 0
Since (x + 3) is a factor, then we can factorize the polynomial as;
(x + 3)(4x² + 12x + 5) = 0
Rewriting the quadratic term gives;
(x + 3)(4x² + 2x + 10x + 5) = 0
(x + 3)(2x(2x + 1) + 5(2x + 1)) = 0
Thus, the factors are expressed as;
(x + 3)(2x + 1)(2x + 5) = 0
Thus, the zeros are;
x + 3 = 0
x = -3
2x + 1 = 0
x = -1/2
2x + 5 = 0
x = -5/2
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