Answer:i think a sorry if my answer is incorrect
Step-by-step explanation:
Explain how to graph the given piecewise-defined
function. Be sure to specify the type of endpoint each
piece of the function will have and why.
f(x)
X + 3, x < 2
3,
2 ≤ x < 4
4 - 2x,
X 2 4
The Piecewise -Defined function and how it is graphed is given below..
What is the explanation of how the Piecewise -Defined function is graphed?
Given the function in the attached image,
The Graph of f(x) = -x + 3 is drawn for x less than 2 because x is bounded.The Graph of f(x) = 3 is draw for x greater than and equal to 2 and less than 4 because x is bounded.The Graph of f(x) = 4 - 2x is draw for x greater than equal to 4 because x is bounded.See the attached Graph for better understanding.
f(x) = -x + 3 is coded purple.f(x) = 3 is coded orange.f(x) = 4 - 2x is coded green.Learn more about Piecewise -Defined function:
https://brainly.com/question/18859540
#SPJ1
prove or provide a counter example of the following statement: if a and b are similar matrices and v is an eigenvector of a, then v is also an eigenvector of b.
If A and B are similar matrices and v is an eigenvector of A, then v is also an eigenvector of B , similarly if u is an eigenvector of B then u is also eigenvector of A.
Suppose A and B are n×n matrices over R or C. We say A and B are similar, or that A is similar to B, if there exists a matrix P such that B =P⁻¹AP.
The eigenvalues are the roots of the
characteristic polynomial.
B =P⁻¹AP ⇔ PBP⁻¹ = A
If Av = λv , then PBP⁻¹v = λv ⇒ BP⁻¹v = P⁻¹λv
So, if v is an eigenvector of A, with eigenvalue λ, then P⁻¹v (which is non-zero since P is invertible) is an eigenvector of B with the same eigenvalue. If u is an eigenvector for B then P⁻¹v is an eigenvector for A. So, every eigenvalue of A is an eigenvalue of B and since you can interchange the roles of A and B in the previous calculations, every eigenvalue of B is an eigenvalue of A too. Hence, A and B have the same eigenvalues.
To learn more about Eigenvector and eigen values, refer:
https://brainly.com/question/14406572
#SPJ4
What is the circumference of this circle? Use π ≈ 3.14. Round your answer to the nearest tenth of a centimeter.
the diameter is 13
The circumference of the given circle is 41 cm
What is a circle?A circle is a round-shaped figure that has no corners or edges. In geometry, a circle can be defined as a closed, two-dimensional curved shape.
The circumference of a circle is the boundary length of the circle, it is basically the perimeter of the circle, in degree measure it can not exceed by 360°
Given that, a circle, with diameter, 13 cm, we need to find it circumference.
We know that, the circumference of a circle is given by,
Circumference of the circle = π × diameter
= 3.14 × 13
= 40.82
≈ 41 cm
Hence, the circumference of the given circle is 41 cm
Learn more about circles, click;
https://brainly.com/question/29142813
#SPJ9
PLEASSSE HELP ASAP I'LL GIVE ⊂BRAINLIEST⊃ AND ↑5 STARS↑ !!!
⇔ all answers answered are required for 5 stars & brainliest⇔
Wilson paints 40% of a bookcase in 20 minutes.
How much more time will it take him to finish the bookcase? Write an equation using equal fractions to represent this situation. Use a box to represent the total time it takes to paint the bookcase.
second question
How much time will it take Wilson to finish painting the bookcase? Explain.
Answer:
Step-by-step explanation:
30 minutes UoU
Every 10 minutes he finishes 20% of the book case.
so In 10 minutes he will have 50% done, In 20 minutes 60%, in 40 minutes 100%
Evaluate 3x2 + 3x - 9, when x = 2
Answer:
9
Step-by-step explanation:
3x^2 + 3x - 9
Substitute x = 2 into the equation.
3(2)^2 + 3(2) - 9
3(4) + 6 - 9
12 + 6 - 9
18 - 9 =
9
Helpp me plzzz I will mark brainless
Answer:
the first
Step-by-step explanation:
there two lones
Answer:
2 rays that meet at an endpoint.
Step-by-step explanation:
Looking at the picture, I can see two rays (since they only point in one direction) meeting at an endpoint. As a result, that forms the figure shown the best of the 4 choices.
26
11°
X
130
(Round the answer to the nearest hundredth.)
The length of side x is
15319
Gaveart
067295
The length of side x is approximately 24.87, rounded to the nearest hundredth.
how can we find side of the triangle?
To find the length of side x, we can use the sine function, which relates the opposite side to an angle to the hypotenuse:
sin(11°) = opposite side/hypotenuse
Rearranging this equation, we get:
opposite side = sin(11°) * hypotenuse
We know that the hypotenuse has a length of 130, so we can substitute that in:
opposite = sin(11°) * 130
Using a calculator, we can evaluate sin(11°) to be approximately 0.1919, so we can substitute that in as well:
opposite = 0.1919 * 130
Simplifying this expression, we get:
opposite ≈ 24.87
Therefore, the length of side x is approximately 24.87, rounded to the nearest hundredth.
To know more about hypotenuse:
https://brainly.com/question/12006293
#SPJ1
The population of Newtown is 45 000.
The population of Villeneuve is 39 000.
(a) Calculate the ratio of these populations in its simplest form.
(b) In Newtown, 28% of the population are below the age of twenty.
Calculate how many people in Newtown are below the age of twenty.
(c) In Villeneuve, 16 000 people are below the age of twenty.
Calculate the percentage of people in Villeneuve below the age of twenty.
(d) The population of Newtown is 125% greater than it was fifty years ago.
Calculate the population of Newtown fifty years ago.
(e) The two towns are combined and made into one city called Monocity.
In Monocity the ratio of
men : women children IS 12:13:5
Calculate the number of children in Monocity.
The number of children in Monocity is 21,000.
What is the ratio?It is described as the comparison of two quantities to determine how many times one obtains the other. The proportion can be expressed as a fraction or as a sign: between two integers.
Given that population of Newtown is 45000.
The population of Villeneuve = 39000.
(a) the ratio of these populations
45000: 39000
45: 39
15: 13
(b) In Newtown, 28% of the population is below the age of twenty then it would be;
28% of 45000
28% x 45000 = 12600
(c) In Villeneuve, 16,000 people are below the age of twenty then the percentage of people in Villeneuve below the age of twenty will be;
16,000 /39000 x 100
= 41 %
(d) The population of Newtown is 125% greater than it was fifty years ago then the population of Newtown fifty years ago will be;
125% of 45000
1.25 x 45000
= 56250
Thus, 56250 + 45000 = 101250
(e) In Monocity the ratio of men: women : children is 12:13:5
Total = 45000 + 39000 = 84000
Therefore, the number of children in Monocity is
84000 = 20p
p = 4200
Then 4200 x 5 = 21,000
The number of children in Monocity is 21,000.
Learn more about the ratio here:
brainly.com/question/13419413
#SPJ2
When x = 12
, y = 47. What is the value of y when x = 312
?
Answer:
1222
Step-by-step explanation:
312/12 = 26
So, you have to multiply y (47) by 26
This will get you 1222
Answer:
1222
Step-by-step explanation:
12/312 = 47/x
X=1222
A rectangle or plot of land has an area of 8/3 square miles and a length of 3/5 of a male What is the width of the plot of land in Miles?
IM IN A HURRY PLEASE HELP ME QUESTION IS DOWN BELOW WORTH 15 POINTS each
Applying the congruent chords theorem, the value of x is: 7.
Length of segment LP is: 6 units.
What is a Chord in Geometry?In geometry, a chord is defined as the line segment that joins two points on the circumference of a circle.
What is the Congruent Chords Theorem?In a circle, if two chords are congruent, then they are equidistant from the center of a circle, according to the congruent chords theorem.
In the circle given, chords JK = LM = 12 units. This means both chords are congruent, therefore, they are equidistant from the center of the circle S.
According to the congruent chords theorem, NS = PS, thus:
8 = 2x - 6
8 + 6 = 2x
14 = 2x
Divide both sides by 2
14/2 = 2x/2
7 = x
x = 7
LP = 1/2(12)
LP = 6 units.
In summary, applying the congruent chords theorem, the value of x is: 7.
Length of segment LP is: 6 units.
Learn more about the congruent chords theorem on:
https://brainly.com/question/7511582
#SPJ1
based on the results of the simulation, explain why the sample mean might be preferred to the sample midrange as an estimator of the population mean.
The sample mean is more accurate and precise than the sample midrange because it takes all the values in the sample into consideration, while the sample midrange only takes into consideration the highest and lowest values.
The sample mean is generally preferred over the sample midrange as an estimator of the population mean because it is more accurate and provides a more precise estimate of the population mean. The sample mean is the average of all the values in the sample, and it is calculated by adding all the values in the sample and then dividing by the number of values. Mathematically, the sample mean is represented as μ = ( ΣX ) / N, where ΣX represents the sum of all the values in the sample and N is the number of values in the sample. On the other hand, the sample midrange is simply the midpoint between the highest and lowest values in the sample, and it is calculated by adding the highest and lowest values and dividing by two. The sample mean is more accurate and precise than the sample midrange because it takes all the values in the sample into consideration, while the sample midrange only takes into consideration the highest and lowest values.
Learn more about sample here:
https://brainly.com/question/15659544
#SPJ4
HELP PLEASE I’m having troubles!!!
1. The velocity at time t , v(t) = (18t² + 3 ) m/s
2. The velocity at time t = 3 seconds = 165 m/s
3. The acceleration at time t, a(t) =( 36t )m/s²
4. The acceleration at time t = 3 seconds = 108 m/s²
What is instateanou velocity and acceleration?The quantity that tells us how fast an object is moving anywhere along its path is the instantaneous velocity.
Instantaneous acceleration is defined as the ratio of change in velocity during a given time interval such that the time interval goes to zero.
1. s(t) = 6t³ + 3t +9
to find the velocity at time t, we differentiate s(t)
= 18t² + 3
2. at t = 3s
= 18(3)² +3
= 165 m/s²
3. v(t) = 18t² + 3
to get the acceleration at time t, we differentiate v(t)
= 36t
4. when t = 3
a = 36 × 3
= 108 m/s²
learn more about instantaneous velocity and acceleration from
https://brainly.com/question/2234298
#SPJ1
The number of children's books at a library was 2/5 of the total number of books. After 298 children's books were added to the library, the number of children's books was 4/7 of the total number of books. How many books were there in the library at first?
Answer:
745
Step-by-step explanation:
You want the original number of books in the library if adding 298 children's books increased the fraction of children's books from 2/5 to 4/7.
RatioWe often like to work problems like this in terms of "ratio units." Here, we'll let x represent the number of books in a ratio unit. This means the number of children's books is originally 2x, and the total number of books is originally 5x. Then we have ...
(2x +298)/(5x +298) = 4//7
SolutionCross multiplying gives ...
7(2x +298) = 4(5x +298)
3(298) = 6x . . . . . . . . . . . . . subtract (14x+4(298))
149 = x
745 = 5x . . . . . . the original number of books in the library
There were 745 books in the library at first.
__
Additional comment
If we let x represent the original number of library books, then the arithmetic involves more fractions. You would have an equation like ...
2/5x +298 = 4/7(x +298)
<95141404393>
Find the 9th term of the arithmetic sequence with 9=10 and d= - ½
The 9th term of this arithmetic sequence is 6.
In an Arithmetic Progression (AP), the nth term is given by the formula-
a9 = a + (n-1)d
where a = first term of the AP
d = common difference
Here, we are given that a= 10 and d = - ½
Let the 9th term of the AP be a9
Therefore, according to the formula for finding the nth term of an AP, we get-
a9 = a + (9-1)d
a9 = a + 8d
Substituting the values of a and d given in the question-
a9 = 10 + 8(-1/2)
a9 = 10 - 4
a9 = 6
Thus, the 9th term of the arithmetic sequence is 6.
Learn more about Arithmetic Progressions here-
https://brainly.com/question/6561461
#SPJ9
Amanda tiene 4 bolitas más que Rodrigo, y Patricio tiene una bolita más que el doble de Amanda y Rodrigo juntos. Si en total tienen 103 bolitas, cuantas bolitas tiene Amanda
Las cantidades de bolitas para cada una de las tres personas son las siguientes:
Amanda: 19 bolitas
Rodrigo: 15 bolitas
Patricio: 69 bolitas
¿Cuántas bolas tienen Amanda, Rodrigo y Patricio?En este problema tenemos a tres personas (Amanda, Rodrigo y Patricio) que se reparten 103 bolitas, en términos algebraicos, cada persona es representada por las siguientes ecuaciones:
Amanda
x = y + 4
Rodrigo
y
Patricio
z = 2 · (x + y) + 1
Total
x + y + z = 103
A continuación, determinamos la cantidad de bolitas asociada con Rodrigo:
x + y + 2 · (x + y) + 1 = 103
3 · x + 3 · y = 102
x + y = 34
y + 4 + y = 34
2 · y = 30
y = 15
Luego, determinamos las cantidades de bolitas de Amanda y Patricio:
x = 15 + 4
x = 19
z = 2 · (19 + 15) + 1
z = 2 · 34 + 1
z = 68 + 1
z = 69
ObservaciónEl enunciado se encuentra escrito en español y el lenguaje de la respuesta es el mismo del enunciado.
The statement is written in Spanish and the language used in the answer is the same of the statement.
Para aprender más sobre sistemas de ecuaciones lineales: https://brainly.com/question/27891414
#SPJ1
Helppppppp will give brainiest to first right answer
Answer:
1 degrees F
Step-by-step explanation:
-3+12-6=3
3/3 = 1
1 degrees F
:]
(6.2 x 10²) x (3.5 x 10³)
Answer:
\(21.7 x 10^5\)
Step-by-step explanation:
(6.2 x 10²) x (3.5 x 10³)
First, multiply the coefficients: 6.2 x 3.5 = 21.7.
Then, add the exponents: 10² x 10³ = 10^(2+3) = 10^5.
Therefore, the result is 21.7 x 10^5.
Answer:
3286000
Step-by-step explanation:
(12²-15+17)+16= what is the answer
162
Step-by-step explanation:
(12 square - 15 + 17) + 16
=(144 - 15 + 17) + 16
=146 + 16
=162
Suppose f(x) =8^3x and g(x) =8^4x which of these function operations are correct select all that apply
Suppose \(f(x) =8^{3x\) and \(g(x) =8^{4x\), function operations that are correct include the following:
A. (f + g)(x) = \(8^{3x} + 8^{4x}\)
B. (f × g)(x) = \(8^{7x}\)
C. (f - g)(x) = \(8^{3x} - 8^{4x}\)
What is an exponent?In Mathematics, an exponent is a mathematical operation that is typically used in conjunction with an algebraic expression in order to raise a quantity to the power of another.
This ultimately implies that, an exponent is represented by the following mathematical expression;
bⁿ
Where:
the variables b and n are numerical values (numbers) or an algebraic expression.n is referred to as a superscript or power.By applying the division and multiplication law of exponents for powers of the same base to the functions, we have the following:
(f × g)(x) = \(8^{3x+ 4x}=8^{7x}\)
(f ÷ g)(x) = \(8^{3x- 4x}=8^{-x}\)
Read more on exponent here: brainly.com/question/27858496
#SPJ1
is 180. The sum of the measures of the second and third angles is five times the measure of the first angle. The third angle is 26 more than the second. Let x, y, and z represent the measures of the first, second, and third angles, respectively. Find the measures of the three angles.
Answer:
x is first angle
y is second angle
and z is third angle
Step-by-step explanation:
This question is solved by a system of equations. We have that:x is the first angle.y is the second angle.z is the third angle.Doing this, we get that:The first angle measures 30º.The second angle measures 67º.The third angle measures 83º.The sum of the measures of the angles of a triangle is 180. This means that The sum of the measures of the second and third angles is five times the measure of the first angle.This means that:From this, the first angle can be found:The measure of the first angle is of 30º.The third angle is 16 more than the second.This means that:Since We get that the second angle is:The second angle measures 67º.For the third angle:The third angle measures 83º.
20 divided by what equals 10/3
Answer:
6
Step-by-step explanation:
Changing the question into an equation format :
20/x = 10/3
Multiply x on both sides :
20 = 10x/3
Multiply both sides by 3 :
60 = 10x
Divide both sides by 10 :
6 = x
x = 6
The number must be 6, but let's check:
20/6
Simplify fraction by finding common multiple:
2
20/6 ÷ 2/2 = 10/3
Same as question so ✅
Hope this helped and have a good day
Answer:
6
Step-by-step explanation:
1. 20 / x = 10 / 3
2. Cross multiply 20 time 3 and 10 times x to get 60 = 10x
3. Divide both sides by 10
4. x=6
1.
(03.03 MC)
A biologist is studying the growth of a particular species of algae. She writes the following equation to show the radius of the algae, f(d), in mm, after d days:
f(d) = 11(1.01)d
Part A: When the biologist concluded her study, the radius of the algae was approximately 11.79 mm. What is a reasonable domain to plot the growth function? (4 points)
Part B: What does the y-intercept of the graph of the function f(d) represent? (2 points)
Part C: What is the average rate of change of the function f(d) from d = 2 to d = 7, and what does it represent? (4 points)
Answer:
sept one
Step-by-step explanation:
HELP PLEASEEEEE!!!!!!
A horizontal line with evenly spaced numerical increments is referred to as a number line. How the number on the line can be answered depends on the numbers present. The use of the number is determined by the question that it corresponds to, such as when graphing a point.
The visual depiction of numbers, such as fractions, integers, and whole numbers, spread out uniformly along a single horizontal line is known as a number line. A number line can be used as a tool for operations like addition and subtraction as well as comparison and sorting of numbers.
Given:
As from the Figure we have
-1 3/4 = -7/4 = -1.75, which is represented by point 1 on the number line.
and, 14/8 = 1.75, which is represented by point 7 on the number line.
and, 1.125, which is represented by point 6 on the number line.
and, -0.875, which is represented by point 4 on the number line.
Learn more about number line here:
https://brainly.com/question/13425491
#SPJ1
which one of the following is a solution to |2x-1|>3 A.2, B.-1, C.-2, D.1, E.None of these
Simultaneous Equations
2x+3y=3750, 4x+y=4250
The answer is x=900 and y=650
I just need the steps
Answer:
It's long but you use Substitution!
Step-by-step explanation:
Let's solve your system by substitution.
2x+3y=3750;4x+y=4250
Rewrite equations:
4x+y=4250;2x+3y=3750
Step: Solve 4x+y=4250 for y:
4x+y = 4250
4x+y+−4x = 4250+−4x (Add -4x to both sides)
y = −4x+4250
Step: Substitute −4x+4250 for y in 2x+3y = 3750:
2x+3y=3750
2x+3(−4x+4250)=3750
−10x+12750=3750 (Simplify both sides of the equation)
−10x+12750+−12750=3750+−12750 (Add -12750 to both sides)
−10x =−9000
−10x = −9000 (Divide both sides by -10)
−10 −10
x=900
Step: Substitute 900 for x in y = −4x+4250:
y=−4x+4250
y=(−4)(900)+4250
y=650 (Simplify both sides of the equation)
Answer:
x=900 and y=650
The triangle shon below has an area of the 75 units^2
Apply Pythagorean theorem first
\(\\ \rm\rightarrowtail b^2=11^2-10^2\)
\(\\ \rm\rightarrowtail b^2=121-100\)
\(\\ \rm\rightarrowtail b^2=21\)
\(\\ \rm\rightarrowtail b=4.2\approx 4units\)
Now
\(\\ \rm\rightarrowtail \dfrac{1}{2}(x)(10)=75\)
\(\\ \rm\rightarrowtail 5x=75\)
\(\\ \rm\rightarrowtail x=15units\)
in a classroom for every eight girls there are five boys what is the ratio of boys to girls?
Answer:
5:8
Step-by-step explanation:
Find the disciminant of the quadratic equation:
\(4k^2+8k+4=0\)
here
a=4b=8c=4Discriminant
D=b²-4acD=8²-4(4)(4)D=64-4³D=64-64D=0Answer:
0 (zero)
Step-by-step explanation:
Discriminant
\(b^2-4ac\quad\textsf{when}\:ax^2+bx+c=0\)
Given equation: \(4k^2+8k+4=0\)
Therefore:
a = 4b = 8c = 4Substitute these values into the discriminant and solve:
\(\begin{aligned}\implies b^2-4ac & = 8^2-4(4)(4)\\& = 64 - 4(16)\\& = 64 - 64\\& = 0\end{aligned}\)
Therefore, the discriminant of the given quadratic equation is zero.
This implies that the graph of the equation has one real root.
GIVING OUT BRAINLIST QUICK! I CAN ONLY GIVE BRAINLIST IF 2 PEOPLE ANSWER!
Answer:
A = 80 in²
Steps:
A = 16 × 5
A = 80 in²
Answer:
im not completely sure but i think 80in.²