Answer:
En total hay 22 + 31 + 32 = 85 bolas. De estas, 31 hijo b
Por lo tanto, la probabilidad de que la primera bola en un carril sea una bola de doce libras es:
P(bola de doce libras) = número de bolas de doce libras / número total de bolas
P(bola de doce libras) = 31 / 85
P(bola de doce libras) ≈ 0.365
Por lo tanto, las probabilidades a favor de que la primera bola en un carril sea una bola de doce libras son de aproximadamente 0.365, o alrededor del 36.5%.
Step-by-step explanation:
espero te sirva
how to convert ounces to tbsp
In order to convert ounces to tablespoons(tbsp), we have to multiply the number of ounces by 2.
You can use a simple conversion factor of 2 tablespoons per ounce to convert ounces to tablespoons. So, to convert a certain number of ounces to tablespoons, you just need to multiply that number by 2. For example, if you have 4 ounces of liquid, you can convert it to tablespoons by multiplying 4 by 2, which gives you 8 tablespoons. This conversion is often used in cooking and baking recipes where ingredients may be measured in different units.
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There are 9 chocolate bars in a bag of Halloween candy. The bag is dropped and 5 of the chocolate bars break. You take one random chocolate bar out, eat it and take another out. What is the probability that neither of these were broken?
Answer:
Below
Step-by-step explanation:
4 out of 9 are not broken first bar not broken chance is then 4/9
now there are 8 bars left and 3 are not broken so for the second bar thee is a 3/8 chance of not being broken
4/9 * 3/8 = 12/72 = 1/6
Answer:
it's below because
Step-by-step explanation:
1/6 !!!!!!!!!!!!!!
please help and explain how to solve this
A cone with height h and radius r has volume V = 1/3πr^2h. If a certain cone with a height of 9 inches has volume V = 3πx^2 + 42πx + 147π, what is the cone’s radius r in terms of x?
The cone’s radius r in terms of x is x + 7
How to determine tthe cone’s radius r in terms of x?From the question, we have the following parameters that can be used in our computation:
Volume, V = 3πx^2 + 42πx + 147π
Height, h = 9
The volume of a cone is
V = 1/3πr^2h
Substitute the known values in the above equation, so, we have the following representation
1/3πr^2 * 9 = 3πx^2 + 42πx + 147π
So, we have
3πr^2 = 3πx^2 + 42πx + 147π
Divide by 3π
r^2 = x^2 + 14x + 49
So, we have
r = √(x² + 14x + 49)
Evaluate
r = x + 7
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Two student clubs were selling t-shirts and school notebooks to raise money for an upcoming school event. In the first few minutes, club A sold 2 t-shirts and 3 notebooks, and made $20. Club B sold 2 t-shirts and 1 notebook, for a total of $8.
A matrix with 2 rows and 2 columns, where row 1 is 2 and 3 and row 2 is 2 and 1, is multiplied by matrix with 2 rows and 1 column, where row 1 is x and row 2 is y, equals a matrix with 2 rows and 1 column, where row 1 is 20 and row 2 is 8.
Use matrices to solve the equation and determine the cost of a t-shirt and the cost of a notebook. Show or explain all necessary steps.
Forming linear equations, the cost of a t-shirt and a notebook will be $1 and $6 respectively.
What is a linear equation, exactly?
When the greatest power of a variable is 1, the equation is said to be linear. Another term for it is a one-degree equation. The standard form of a linear equation with one variable is Ax + B = 0. There are three variables in this equation: x, A, and B. A denotes a coefficient. A linear equation with only two variables is commonly written as Ax + By = C. There are three more constants in addition to the constant C: the variables x and y, the coefficients A and B, and the variables.
Now,
Given that
club A sold 2 t-shirts and 3 notebooks, and made $20.
Club B sold 2 t-shirts and 1 notebook, for a total of $8.
Let x and y be the cost of t-shirt and notebook respectively
then 2x+3y=20--->1
and 2x+y=8 --->2 will be the equations formed.
Now subtracting 2 from 1
we get 2x-2x+3y-y=20-8
2y=12
y=6
then 2x+6=8
x=1
Hence,
the cost of a t-shirt and a notebook will be $1 and $6 respectively.
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please finish these 4 I need help pls
ABCD is a parallelogram. Find angle y.
Therefore , the solution of the given problem of parallelograms comes out to be ∠y = 62 degree.
What is the purpose of parallelograms?A simple square with two sets of equal intervals is referred to as a parallelogram in Euclidean geometry. The opposite ends of a parallelogram, a special type of quadrilateral, were both straight and equal. There are four distinct parallelogram types, and two of them are exclusive of one another. The four different shapes are rhombuses, equilateral triangles, triangles, and rectangles. A quadrilateral is a parallelogram if it has two pairs of parallel sides.
Here,
Given :
A parallelogram ABCD and a triangle AED
So,
To find angle y:
∠D + 118 = 180
=> ∠D = 180 -118
=>∠D= 62 Degree
So,
According to alternate interior angle :
∠D= ∠y
=> 62 = ∠y
Thus ,∠y = 62 degree.
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TRANSPORT Mr Dlamini transport people between Butterworth and East London using a bus which has a capacity of 100 people. The transport charge starts with a minimum charge of R8 and thereafter it was increased by R2 for each kilometre. On a particular day the bus was full with passengers from Butterworth. In each and every kilometre there was a passenger getting off while no new passenger entered in the bus. Mr Dlamini was calculating total money in his hand after each passenger was getting out. The total amount he has after each stop can be written as a series as follows: S. = 8 + 10 + 12 + 14 +... Use the series to calculate the following questions 1.1 (1) Term 2 (T2) = Sum of first two terms (S2) (2) (ii) Express T2 in terms of S, and S2. (1)
From the series, it can be deduced that the sum of the first two terms will be 18.
How to calculate the series?From the information given, it was stated that the transport charge starts with a minimum charge of R8 and thereafter it was increased by R2 for each kilometre.
The series is also given as S. = 8 + 10 + 12 + 14 +... Therefore, the sum of the first two terms will be:
= 8 + 10
= 18
Expressing T2 in terms of S, and S2 will be T2 = S + S2.
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Type the correct answer in each box. Use numerals instead of words. 7 1/4 The expression above can also be written in the form b√a
For this expression, a =. and b =.
The radical form of the exponential expression is given as follows:
[tex]\sqrt[4]{7}[/tex]
Hence the values of a and b are given as follows:
a = 7, b = 4.
How to obtain the radical form of each expression?The general format of the exponential expression is given as follows:
[tex]a^{\frac{n}{m}}[/tex]
To obtain the radical form, we have that:
a is the radicand.n is the exponent.m is the root.Hence:
[tex]a^{\frac{n}{m}} = \sqrt[m]{a^n}[/tex]
Meaning that the equivalence for this problem is given as follows:
[tex]7^{\frac{1}{4}} = \sqrt[4]{7}[/tex]
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What is the conversion of 38c to fahrenheit ?
The value which represents the converted value Celsius to Fahrenheit is 38 Celsius is equal to 100.4 Fahrenheit.
Units which are used to measure temperature are known by the nameCelsius and Fahrenheit .
Conversion relation between the units of the temperature is written as:
(°C × 9/5) + 32 =°F
Substitute the value 38 Celsius to convert it into Fahrenheit we get,
(38°C × 9/5) + 32
= ( 342 / 5 ) + 32
= ( 68.4 ) + 32
= 100.4°F
Therefore, the required converted value of the Celsius to Fahrenheit is given by 100.4 Fahrenheit.
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Check all that apply that describe the graph of the inequality: y2 - 2x + 3
slope: -2
slope: 2
dotted/dashed line
solid line
shade above
shade below
y-intercept of 3
The correct options for the inequality y ≥ -2x + 3 are:
slope: -2solid lineshaded abovey-intercept of 3How to describe the graph of the inequality?Here we have the next inequality:
y ≥ -2x + 3
First, we can see that the symbol "≥" is used, then the points on the line are solutions, and thus, the line must be a solid line.
Also, y is larger or equal than that, so we need to shade the region above.
Finally, the line is y = -2x + 3
So the slope is -2 and the y-intercept is 3.
These are the characteristics of the inequality
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Hi please help ! ( see images !)
( even if you don't know the answers to all of the questions please give me the answer to the ones you know !)
Step-by-step explanation:
u are going to multiply 5 and 10 and the get the answer ad write as a cubic root
what is arc length calculus formula?
Arc length formula is L = ∫a^b √[1 + (dy/dx)^2] dx . The arc length of a curve is the length of the curve between two points, and it can be calculated using the arc length formula in calculus.
The arc length formula can be used to find the length of a curve in terms of the function that describes the curve.
The arc length formula is given by:
L = ∫a^b √[1 + (dy/dx)^2] dx
where L is the arc length of the curve, a and b are the endpoints of the curve, dy/dx is the derivative of the function that describes the curve with respect to x, and ∫ represents the integral of the function over the interval from a to b.
To use the formula, we first find the derivative of the function that describes the curve, dy/dx. Then we plug this expression into the arc length formula and integrate the expression over the interval from a to b to find the arc length of the curve.
The arc length formula is useful in many applications, such as physics, engineering, and geometry, and it allows us to find the length of a curve even when it is not a straight line.
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what is trig identities calculator?
A trigonometric identities calculator is an online tool that helps you simplify or prove trigonometric identities using various trigonometric formulas and rules.
Describe Equation?In mathematics, an equation is a statement that asserts the equality of two expressions. An equation contains one or more variables, which are unknown values that can vary or change. The variables are usually represented by letters such as x, y, or z. The expressions on either side of the equals sign can be constants, variables, or functions of variables.
The simplest form of an equation is a linear equation, which can be represented as ax + b = c, where a, b, and c are constants and x is a variable. To solve a linear equation, we need to find the value of the variable that makes the equation true. This is done by performing arithmetic operations on both sides of the equals sign to isolate the variable.
Equations can also be more complex, involving multiple variables, powers, and functions. In such cases, algebraic techniques such as factoring, substitution, and solving systems of equations may be required to find the solution.
Equations are used to describe relationships between variables in many fields of study, including physics, chemistry, economics, and engineering. They are also used in everyday life, such as in calculating the cost of a purchase after applying a discount, or determining the amount of time it takes to travel a certain distance
Trigonometric identities are equations that involve trigonometric functions and are true for all values of the variables involved. These identities are used to simplify expressions involving trigonometric functions, and can be helpful in solving trigonometric equations and evaluating trigonometric functions.
Trigonometric identities calculators can be helpful for students studying trigonometry, as well as for professionals who use trigonometric functions in their work. These calculators typically allow you to enter the trigonometric expression or equation you want to simplify or prove, and then apply various trigonometric identities and rules to arrive at the final result.
There are many online trigonometric identities calculators available that can be accessed for free, including some that provide step-by-step solutions to help you understand how the identities are being applied.
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(x+10)^2 as a trinomial in standard form
x² −20x+100
Explanation
You have to factor the expression in order to get your answer.
Do this by expanding out the expression: (x-10)(x-10).
Then factor by multiplying each of the components! Use the FOIL acronym to help you. FOIL stands for First, Outer, Inner, Last. Meaning multiply the first numbers of the expressions together, then the outers, then the inner two numbers, then the last two numbers of the expression.
Multiply x and x to get x² multiply x and -10 to get -10x, multiply -10 and x to get -10x, multiply -10 and -10 to get 100. Add them all together: x² −10x−10x+100 . Then combine like terms.
here.
Triangle ABC is a right triangle. Point D is the midpoint of side AB, and point E is the midpoint of side AC. The measure of angle ADE is 68°. Triangle ABC with segment DE. Angle ADE measures 68 degrees. The following flowchart with missing statements and reasons proves that the measure of angle ECB is 22°: Statement, Measure of angle ADE is 68 degrees, Reason, Given, and Statement, Measure of angle DAE is 90 degrees, Reason, Definition of right angle, leading to Statement 3 and Reason 2, which further leads to Statement, Measure of angle ECB is 22 degrees, Reason, Substitution Property. Statement, Segment DE joins the midpoints of segment AB and AC, Reason, Given, leading to Statement, Segment DE is parallel to segment BC, Reason, Midsegment theorem, which leads to Angle ECB is congruent to angle AED, Reason 1, which further leads to Statement, Measure of angle ECB is 22 degrees, Reason, Substitution Property. Which statement and reason can be used to fill in the numbered blank spaces?
What is Midsegment Theorem ?
The Midsegment Theorem, also known as the Midline Theorem or the Triangle Midsegment Theorem, states that the segment connecting the midpoints of two sides of a triangle is parallel to the third side and is half its length.
Explanation:
Here is the complete flowchart with the missing statements and reasons filled in:
Statement 1: Measure of angle ADE is 68 degrees.
Reason 1: Given.
Statement 2: Measure of angle DAE is 90 degrees.
Reason 2: Definition of right angle.
Statement 3: Measure of angle AED is 22 degrees.
Reason 3: Angle sum of triangle ADE is 180 degrees.
Statement 4: Segment DE joins the midpoints of segment AB and AC.
Reason 4: Given.
Statement 5: Segment DE is parallel to segment BC.
Reason 5: Midsegment theorem.
Statement 6: Angle ECB is congruent to angle AED.
Reason 6: Corresponding angles formed by parallel lines.
Statement 7: Measure of angle ECB is 22 degrees.
Reason 7: Substitution property.
So, statements 3 and 6, and reasons 3 and 6, respectively, can be used to fill in the blank spaces numbered 3 and 6, and statement 5 and reason 5 can be used to fill in the blank spaces numbered 4 and 5. Finally, statement 7 and reason 7 can be used to fill in the blank space numbered 7.
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what does the percentage of completion method calculate?
The percentage of completion method is a widely used accounting method to recognize revenue and expenses over the life of a long-term project or contract.
It is primarily used in construction, real estate, and other industries that undertake large projects that span over extended periods. The method estimates the percentage of work completed, and then assigns that percentage of revenue and expenses to that period.
Under the percentage of completion method, revenue and expenses are recognized proportionally to the progress of the project, and the calculation is based on the cost incurred to date relative to the total estimated cost of the project.
This method is advantageous because it allows for more accurate financial statements that reflect the actual progress and costs of the project.
Overall, the percentage of completion method provides a more accurate representation of the financial position of long-term projects and contracts, and is therefore an essential tool for companies in industries that undertake such projects.
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a box plot is a graphical representation of data that is based on a histogram. z-scores. a five number summary. the empirical rule.
A box plot is a graphical representation of data that is based on (c) a five number summary
How to complete the statementFrom the question, we have the following parameters that can be used in our computation:
Statement: a box plot is a graphical representation of data that is based on__
A box plot (also called a box-and-whisker plot) is a way to display the distribution of a dataset.
It shows the median, quartiles, minimum, and maximum values of the data.
These items are referred to as the five number summary
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the line plot shows the cost of 5 books.A teacher buys all 5 books.She pays with a $100 bill. How much change should she get?
Answer:
Look at the screenshot
Step-by-step explanation:
$38000 a year is how much an hour?
Answer:
$18.27 an hour
Step-by-step explanation:
To figure out how much $38,000 a year is as an hourly wage, divide $38,000 by 40 hours and 52 weeks. So if you were to work full-time, 40 hours a week, making $38,000 a year, you would earn $18.27 an hour.
what is 20 in decimal?
The number 20 can be represented as a decimal by simply writing it as 20.0 or 20.00
The number 20 can be represented as a decimal by simply writing it as 20.00 or 20.000 This is because decimal notation is a way of writing numbers that uses a decimal point to separate the whole number part from the fractional part.
In this case, since 20 is a whole number and has no fractional part, we can represent it in decimal form by adding a decimal point and a zero or two zeros after it to indicate that there are no decimal places.
Alternatively, we can also represent 20 as a decimal by dividing it by 1, which does not change its value, and then expressing the quotient as a decimal. Since 20 divided by 1 equals 20, we can write 25 as a decimal by dividing 25 by 1 and writing the quotient as follows:
20 ÷ 1 = 20.000000... (with the decimal places repeating indefinitely)
However, in most cases, it is sufficient to represent 20 as 20.0 or 20.00, since these notations convey that the number has no fractional part.
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Please answer Q9 parts (a),(b) and (c)
Completely confused
The area of the shaded region is 435.375 mm². The solution has been obtained by using the concept of area of figure.
What is area?
Area is the amount of space a two-dimensional figure takes up. The standard unit of area is the square, which is typically expressed as square inches, square feet, etc.
We are given an area of a square with a quarter circle outlined on it.
Area of shaded region = Area of square - area of quarter circle
So, using this, we get
⇒Area of shaded region = (45 * 45) - 1/4π (45 * 45)
⇒Area of shaded region = 2025 - 506.25π
⇒Area of shaded region = 2025 - 506.25 * 3.14
⇒Area of shaded region = 2025 - 1589.625
⇒Area of shaded region = 435.375 mm²
Hence, the area of the shaded region is 435.375 mm².
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Since, there are multiple questions so, the question answered above is attached below
3x - 2y = 4
-5x + 4y = 7
What is the conversion of 195 lbs to kg ?
The conversion of 195 lbs to other mass unit kilogram is equals to the 88.45051215 kg.
Kilogram (kg) and pound (lbs) are used to measure the mass of the substance/objects. In the United States and the British commonwealths, the unit used for mass is called pound. A pound is defined as aporoximatly 0.45359237 kilograms. The kilogram, or kilogramme, is the base unit of mass in the Metric system. To convert lbs to kg, multiply the particular lbs value by 0.45359237 kg. For example, to convert x lbs to kilogram, multiply the x lbs by 0.45359237 kg. So,x lbs = x × 0.45359237 kg
x lbs = 0.45359237x kg, if x = 3
Therefore, 3 lbs is approximately equal to 1.36077711 kg. It is very important skill to convert the lbs to kilograms in mass measurment. Now, we have 195 lbs. We know that one lbs
= 0.45359237 kg
Therefore, 195 lbs = 195 x 0.45359237 kg
195 lbs = 88.45051215 kg.
Hence, 195 lbs is equal to 88.45051215 kg.
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36. suppose a system of linear equations has a 3 5 augmented matrix whose fifth column is a pivot column. is the system consistent? why (or why not)?
A 3 5 augmented matrix whose fifth column is a pivot column. that is [0, 0, 0, 0, c] where c is not equal to 0. This implies that the system is inconsistent.
What is pivot column in matrix?The goal of pivoting is to turn a leading one into a zero for an element that is above or below it.
A matrix's left-hand side element is referred to as the "pivot" or "pivot element" when you wish the components above and below it to be 0.
This element usually has a value of 1.
If and only if the echlon form of the augmented matrix designating the linear system of equations contains no row of the type, then the linear system is said to be consistent.
Given that, a 3 5 augmented matrix whose fifth column is a pivot column. that is [0, 0, 0, 0, c] where c is not equal to 0.
This implies that the system is inconsistent.
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which equation is correctly written in point-slope form using the point (−5,−2) as (x1,y1)?
Either option is valid and correctly written in point-slope form using the point (−5,−2) as (x1,y1).
The point-slope form of an equation of a line is given by:
y - y1 = m(x - x1)
where (x1, y1) is a point on the line
m is the slope of the line.
We can use the given point (−5,−2) as (x1,y1)
Choose any value for the slope m to write the equation of the line in point-slope form.
For example:
Option 1:
Let's choose the slope m to be 2.
Then the equation of the line becomes:
y - (-2) = 2(x - (-5))
Simplifying the equation:
y + 2 = 2(x + 5)
Option 2:
Let's choose the slope m to be -3.
Then the equation of the line becomes:
y - (-2) = -3(x - (-5))
Simplifying the equation:
y + 2 = -3(x + 5)
Either option is valid and correctly written in point-slope form using the point (−5,−2) as (x1,y1).
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Explain :Multiply: 23.2 x 0.14 ___________________
As a result, 23.2 x 0.14 equals 3.248.
What does math's multiple mean?One of the four fundamental math processes, along with addition, subtraction, and division, is multiplication. Multiply in mathematics refers to the continual adding of sets of identical size.
To multiply 23.2 and 0.14,
23.2
x 0.14
---------
32.48 (0.2 x 0.14 = 0.028, write down 8 and carry over 2)
+ 232.0 (3 x 0.14 = 0.42, add carried over 2 to get 4, write down 0 and carry over 4)
--------
3.248 (the final answer)
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pls exsplain how to do this
Answer:
75.4 (rounded)
Step-by-step explanation:
V= πr² h/3
V= π x 3² x 8/3
= 75.3982236862
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Kendra earns $10 per hour babysitting and $15 per hour providing tech support. Her goal is to save at least $1,000 by the end of the month while not working more than 80 hours. Write and graph a system of inequalities that shows how many hours Kendra could work at each job to meet her goal. What is the fewest number of hours she could work and still meet her goal?
Answer: Let's use x to represent the number of hours Kendra works as a babysitter, and y to represent the number of hours Kendra works providing tech support. Then, we can write the following system of inequalities to represent Kendra's goal:
10x + 15y >= 1000 (Kendra needs to earn at least $1000)
x + y <= 80 (Kendra can't work more than 80 hours in total)
To graph these inequalities, we can start by graphing the boundary lines for each inequality. To do this, we can rewrite each inequality as an equation and graph it as a line:
10x + 15y = 1000 (the boundary for the earnings inequality)
x + y = 80 (the boundary for the total hours inequality)
We can then shade the region that satisfies both inequalities (i.e. the region that is above the earnings line and below the total hours line). This shaded region represents all the possible combinations of hours that Kendra could work to meet her goal:
|
80| .
| .
| .
| .
| .
0|___________________
0 50 80
Babysitting Hours
In the graph, the shaded region is the triangular area bounded by the x-axis, the y-axis, and the line x + y = 80. The fewest number of hours Kendra could work and still meet her goal is the point where the earnings line intersects the total hours line within the shaded region. To find this point, we can solve the system of equations:
10x + 15y = 1000
x + y = 80
One way to solve this system is to use substitution. Solving the second equation for y, we get y = 80 - x. Substituting this expression for y into the first equation, we get:
10x + 15(80 - x) = 1000
Simplifying and solving for x, we get x = 40. Substituting this value for x into the second equation, we get y = 80 - 40 = 40.
Step-by-step explanation:
Using the equation f=9/5 c+32 which best describes if the relation c,f is a function?
Answer:
F = (9/5)C + 32 is a function because every Celsius temperature is associated with only one Fahrenheit temperature.
hope this helps!!
on ran around a track that was 1/8 of a mile long.He ran around the track 24 times.how mant miles did jon run in all?
Answer:
3 miles
Step-by-step explanation:
1/8*24=3
Answer:
Step-by-step explanation:
He ran 24 times around the track1
Circumfrence of track=1/8 Mile
Total distance he covered=1/8*24
Distance = 3 miles