Answers
Step-by-step explanation:
to be a function every value of x must have exactly one value of y.
in other words, if you create a vertical line and move it across the whole chart (e.g. from left to right), this line must not even once intersect the function curve more or less than once.
so, this is clearly a given here. yes, it is a function.
the domain is the interval or set of all valid x (input) values. and that starts on the right with x = 5 (included in the function indicated by the filled dot). and it goes endlessly to the left. that means -infinity (but not included as "infinity" is only a symbol but not a number).
-infinity < x <= 5
the range is the interval or set of all valid y (function result) values.
and that starts on the top with y = 2 (included). and it goes endlessly down. that means again -infinity (not included).
-infinity < y <= 2
Related Questions
Does anyone know this answer??
Answers
Please Help - Easy Question Algebra 2.
Answers
Answer:
The function is exponential
Its equation is [tex]y = \frac{7}{3} \cdot(\frac{1}{3} )^x[/tex]
Step-by-step explanation:
We can see that, as x increases by a constant y increases by a factor of [tex]\frac{1}{3}[/tex]
So the table represents an exponential equation
The form of the equation is [tex]a\cdot(\frac{1}{3})^{x}[/tex]
All we have to do is determine a
Take the entry for x = 0
At x = 0, the equation becomes y = [tex]a\cdot(\frac{1}{3}) ^ 0[/tex]
Any number raised to the power 0 is 1
So at [tex]x = 0, y = a\cdot1 = a[/tex]
But we know the y value at x = 0 is [tex]\frac{7}{3}[/tex]
So [tex]a = \frac{7}{3}[/tex]
The equation of the function is
[tex]y = \frac{7}{3} \cdot(\frac{1}{3} )^x[/tex]
We can verify by plugging in a few values for x into the above equation and seeing if the corresponding calculated values concur with the one in the table
For [tex]x = - 1, y = \frac{7}{3}\cdot (\frac{1}{3})^{-1} = \frac{7}{3}\cdot 3 = 7[/tex]
You can try the other x values and see that computed and given y values concur
which expression can be used to solve the equation 2x-1=x+2
Answers
The expression can be used to solve the equation 2x - 1 = x + 2 is 3 which is option (B) .
A formula is a statement containing at least two numbers/variables and at least one mathematical operation. An expression is a combination of terms combined by mathematical operations such as subtraction, addition, multiplication, and division.The terms involved in an expression in math are:Constant: A constant is a fixed numerical value.Variable: A variable is a symbol that doesn't have a fixed value.Term: A term can be a single constant, a single variable, or a combination of a variable and a constant combined with multiplication or division.Coefficient: A coefficient is a number that is multiplied by a variable in an expression.We have given an expression [tex]2x-1=x+2[/tex] .
On solving , we get
[tex]2x-x=2+1\\x=3[/tex]
Learn more about expression here :
https://brainly.com/question/723406
#SPJ9
The complete question is mention below :
Which expression can be used to solve the equation 2x-1=x+2 ?
A. 1
B.3
C.5
D.4
estimate the cube root of 1100
Answers
Answer:
Step-by-step explanation:
∛1100
Answer:
10.324
Step-by-step explanation:
I doesn't have a perfect cube root
i need help with these 2 questions {^_^]
Answers
7) - 14
9) 16 1/2
Ann is 4 years older than Julie. 4 years ago Ann was twice as old as Julie. Find their present ages.
Answers
Answer: Julie is 8 years old. Ann is 12 years old.
Step-by-step explanation:
A=Ann's age. J=Julie's age
A=J+4
A-4=(J-4)*2
A-4=2(J-4)
A=2(J-4)+4
2(J-4)+4=J+4
2J-8+4=J+4
2J-4=J+4
2J=J+8
J=8
A=J+4
A=8+4
A=12
Julie is 8 years old. Ann is 12 years old.
Julie's present age (x) is 8 years old, and Ann's present age (x + 4) is 12 years old. Julie is 8 years old and Ann is 12 years old.
Let's denote Julie's age as x.
Since Ann is 4 years older than Julie, her age can be represented as x + 4.
Four years ago, Julie's age was x - 4 and Ann's age was (x + 4) - 4 = x.
Since Ann was twice as old as Julie, we can write the equation
: x = 2(x - 4).
Simplifying the equation, we get: x = 2x - 8.
Rearranging the terms, we find: x - 2x = -8.
Combining like terms, we have: -x = -8.
Finally, solving for x, we get: x = 8.
Therefore, Julie's present age (x) is 8 years old, and Ann's present age (x + 4) is 12 years old.
Learn more about Ages and equations here:
https://brainly.com/question/17736923
#SPJ3
Is this right please tell me
Answers
Point W is located at (7,3) on a coordinate plane. Point W is translated 2 units to the left
and 3 units up. What are the coordinates of the image point W?
Answers
Answer:
(5,6)
Step-by-step explanation:
subtract 7-2 and add 3+3.
Two negative consecutive integers have a sum of -45. What are the two integers?
Answers
Answer:
-23+-22=-45
Step-by-step explanation:
In this type of question if he wants the consequtive divided number over 2 and choose the result number and pervious or next one it is depend on the questions
Answer:
The two integers will be/ are - 23 and - 24
mathematics help pls lol
Answers
2.45
add the 2 numbers and divide by 2
Please help what is a?
-3a + 10 < -11
Answers
Step-by-step explanation:
-3a + 10 < -11
-3a < -21
-a < -7
a > 7
remember, when multiplying with a negative number the inequality sign flips the direction.
15(2x + 3) = 85 + 10x
Answers
Answer:
x = 2
Step-by-step explanation:
Hello!
Solve for x by isolating the variable.
Solve for x15(2x + 3) = 85 + 10x30x + 45 = 85 + 10x 20x + 45 = 8520x = 40x = 2The value of x is 2.
5x6+12 order of operations
Answers
Answer: 5x6+12=42
Step-by-step explanation: Hope This Helps!!
Question 3(Multiple Choice Worth 2 points) (Adding and Subtracting Linear Expressions MC) Write the following expression in simplest form. (3 + 16.4a) − (9 + 5.7a)
A 22.1a + (−12) B 1.07a + (−12) C 22.1a + (−6) D 10.7a + (−6)
Answers
Thea expression in simplest form is 10.7a + (−6) . Option D
What are algebraic expressions?Algebraic expressions are expressions that comprise of variables, terms, coefficients and constants.
They are also made up of certain mathematical operations.
Given the expression;
(3 + 16.4a) − (9 + 5.7a)
expand the bracket
3 + 16. 4a - 9 - 5. 7a
collect like terms
16. 4a - 5. 7a - 9 + 3
add or subtract like terms
10. 7a - 6
Thus, the expression in simplest form is 10.7a + (−6) . Option D
Learn more about algebraic expressions here:
https://brainly.com/question/4344214
#SPJ1
A regular pentagon has a side length of 2x+9. A square has a side length of 3x
Answers
The possible solution for x can be 22.5.
We are given that the side of the regular pentagon = 2 x + 9
So, the perimeter will be:
P ( Regular pentagon) = 5 × ( 2 x + 9 )
P ( Regular pentagon) = 10 x + 45
Also, we are given that the side of a square is 3 x
Perimeter will be:
P ( square) = 4 × 3 x
P ( square) = 12 x
Now, we are given that P ( Regular pentagon) = P ( square)
So, we get that:
10 x + 45 = 12 x
12 x - 10 x = 45
2 x = 45
x = 45 / 2
x = 22.5
Therefore, the possible solution for x can be 22.5.
Learn more about perimeter here:
https://brainly.com/question/24571594
#SPJ9
Your question was incomplete. Please refer the content below:
A regular pentagon has a side length of 2x-9. A square has a side length of 3x. If both polygons have the same perimeter, what is a possible solution of x?
35 POINTS Rebecca has 3 paintings to sell. The amount of money Rebecca makes from selling x paintings is represented by a function.
f(x)=25x
What is the domain of the function?
all real numbers
{25, 50, 75}
{0, 25, 50, 75}
{0, 1, 2, 3}
Answers
Answer:
First one because she will not buy it for free so 0 isn't in the domain
Answer:
all real numbers I believe
..・ヾ(。＞＜)シ
Which of the following represents the sum of the polynomials below?
(6x³ +2ײ +9x)+(-2x³ +5x² +3x)
OA. 4x³ +7x² +12x
OB. 4x³ +7x² +12
OC. 8x³ +7x² +12x
OD. 4x³ +7x² +6x
Answers
Answer:
A
Step-by-step explanation:
First, you have to align the like terms next to each other so that it will be easier to combine like terms. (Like terms have the same variables and powers)
[tex]6x^3+(-2x^3)+2x^2+5x^2+9x+3x[/tex]
Combine like terms:
(When combining like terms all you have to do is add/subtract the coefficients, number in front of variables, and leave the variable and exponents)
[tex]6x^3+(-2x^3)= > 6x^3-2x^3=4x^3[/tex]
[tex]2x^2+5x^2=7x^2[/tex]
[tex]9x+3x=12x[/tex]
So, we get [tex]4x^3+7x^2+12x[/tex]
The top of a rectangular table has an area of 21 square feet. The width of the table is
3 feet. What is the length of the table?
Answers
The width of the table is 63 because 21 x 3 = 63
What is 10 x4 ten thousand
Answers
Answer:
400,000
Step-by-step explanation:
➟ 10 × 4 ten thousand
Since, a ten thousand = 10,000 therefore 4 ten thousand = 40,000
➟ 10 × 40,000
➟ 400,000
4x+12y+4z=-16
12x-12y+8z=8
4x+12y-4z=0
Answers
x = 1, y = -1 and z = -2.
Here, we are given 3 equations-
4x+12y+4z = -16 ...(1)
12x-12y+8z = 8 ...(2)
4x+12y-4z = 0 ...(3)
Firstly, we add equations 1 and 2, we get,
4x + 12y + 4z + 12x - 12y + 8z = -16 + 8
16x + 12z = -8
4x + 3z = -2 ...(4)
Adding 2 and 3, we get,
12x - 12y + 8z + 4x + 12y - 4z = 8
16x + 4z = 8
4x + z = 2 ...(5)
Now, subtracting equation 4 from 5, we get-
4x + z - 4x - 3z = 2 + 2
-2z = 4
z = 4/-2
z = -2
Thus, 4x - 2 = 2
4x = 4
x = 4/4
x = 1
and 4(1) + 12y + 4(-2) = -16
4 + 12y -8 = -16
12y = -16 + 4
12y = -12
y = -12/12
y = -1
Thus, x = 1, y = -1 and z = -2.
Learn more about simultaneous equations here-
https://brainly.com/question/16863577
#SPJ9
An employee of the department store receives 10% off all purchases. The employee purchases a shirt for $46.99. Determine the cost of this purchase.
Answers
The cost of purchase of the employee for a shirt worth $46.99 is $42.30 .
In the question , It is given that
amount of discount employee receives = 10%
Price of the shirt = $46.99 ...(i)
amount of discount the employee got for the shirt = 10% of 46.99
= 0.10*46.99 ...(as 10%=0.10 )
= 4.699 ...(ii)
So the amount of discount the employee got for the shirt = $4.699
The cost of purchase = Price of shirt - discount
Substituting the values from equation (i) and equation (ii) we get,
cost of purchase = 46.99 - 4.699
= 42.291
≅ 42.30
Therefore , the cost of purchase of the employee for a shirt worth $46.99 is $42.30 .
Learn more about Discount here
https://brainly.com/question/13887247
#SPJ1
12/7 divided by 3/2 =
A. 18/7
B. 7/8
C. 7/18
D. 8/7
Answers
Answer:
Step-by-step explanation:
D
12/7 divided by 3/2 becomes 12/7 times 2/3
Multiplied out you get 24/21 which reduces by dividing both the denominator and numerator by 3 giving you 8/7 or letter D
A company packages bottles of olive oil in cylindrical cardboard tubes completely wrapped with paper. If each tube has a diameter of 3 inches and is 11 inches tall, approximately how
many square inches of paper is needed to wrap each tube? (Use 3.14 to approximate w.)
O 78
O
104
118
160
Answers
Answer:
118
Step-by-step explanation:
We need to calculate the surface square of the cylinder. The formula for that is S=2*pi*r*(r+h). r is radius of the cylinder which is diameter/2=3/2=1.5. The formula becomes: S=2*pi*1.5(1.5+11)=37.5pi=~117.5 which is approximated to 118 since if the decimal you're approximating is 5 or higher it just increments the previous one, so here we just add 1 to 117
The sum of the angle measures of a quadrilateral is 360°. In Exercises 7 and 8,
write and solve an equation to find the value of x. Use a protractor to check the
of your answer.
reasonableness
7.
110°
90⁰
to
80⁰
Answers
The value of the angle of the quadrilateral is 80° .
A quadrilateral in geometry is represented as a four-sided polygon with four corners (vertices) and four sides .
The Latin words quadri, a variation of four, and latus, meaning "side," are the source of the name. In reference to other polygons, it is also known as a tetragon, from the Greek "tetra" for "four" and "gon" for "corner" or "angle" (e.g. pentagon). Since "gon" is an anagram for "angle," it is also known as a quadrangle or 4-angle.There are two types of quadrilaterals: simple (not self-intersecting) and complex (self-intersecting, or crossed). Convex or concave quadrilaterals are simple quadrilaterals.The sum of all the angle measures of a quadrilateral is 360°Given angles of the quadrilateral are 110° ,90⁰ and 80⁰.
Now let us consider the fourth angle be x.
∴110°+ 90⁰ + 80⁰ + x = 360°
or, x = 360° - (280°)
or, x = 80°.
The missing angle of the quadrilateral is 80°
To learn more about quadrilateral visit:
https://brainly.com/question/3642328
#SPJ9
7x+5=6x I don’t get this because I have no idea what to subtract by, and I know the answer is -5 but I have no idea how to get there
Answers
Answer:
Step-by-step explanation:
7x + 5 = 6x Subtract 6x from both sides
7x - 6x +5 = 6x -6x
x + 5 = 0 Subtract 5 to both sides
x + 5 - 5 = 0 - 5
x = -5
7x + 5 = 6x
Given the numbers, our first step will be to subtract 7 from both sides:
7x - 7x = 0
6x - 7x = -x
Now our equation is:
5 = -x
Since -x is the variable, we divide everything by it (note that x alone is always equal to 1):
5 / -1 = -5
-1 / -1 = 1
Our final answer is -5/1. This improper fraction reduces to -5.
By subtracting 6 from both sides, the same answer would be received.
Answer choices are:
K
P
J
M
Only pick one answer
Answers
Multiple Choice Carlos read a book for language arts class.
He finished the book on Friday. On Monday he read 27 pages.
On Tuesday he read 31 pages. On Wednesday he read 28 pages.
On Thursday and Friday he read the same number of pages each day.
The book has 144 pages. How many pages did he read on Thursday?
A. 28
B. 29
C. 31
D. 58
Answers
Carlos read 29 pages on Thursday.
What are equations?In its most basic form, an equation is a mathematical statement that shows that two mathematical expressions are equal. 3x + 5 = 14, for example, is an equation in which 3x + 5 and 14 are two expressions separated by a 'equal' sign.So Let, the pages read by Carlos on Thursday and Friday be x as on Thursday and Friday he read the same number of pages.
The equations will be: 27 + 31 + 28 + x + x = 144Now, solve the equation fr x as follows:
27 + 31 + 28 + x + x = 14486 + 2x = 1442x = 144 - 862x = 58x = 58/2x = 29So, Carlos read 29 pages on Thursday and Friday.
Therefore, Carlos read 29 pages on Thursday.
Know more about equations here:
https://brainly.com/question/2972832
#SPJ9
Evaluate: 4+8÷2× (6-3)
Answers
Answer:
12/6 but if you simplify it's 2
Step-by-step explanation:
4+8 = 12
6-3 = 3
2 x 3 = 6
12/6 = 2
-4 66/100 greater or less than -4 3/4
Answers
After the conclusion we can conclude that the fraction [tex]-4\frac{66}{100} < -4\frac{3}{4}[/tex].
What are fractions?A fraction is a portion of a whole or, more broadly, any number of equal parts. In everyday English, a fraction describes the number of parts of a specific size, such as one-half, eight-fifths, or three-quarters.First, we need to make both denominators the same in order to find which fraction is greater and less than.
So,
[tex]-4\frac{66}{100} , -4\frac{3}{4} \\[/tex](-400+66)/100, (-16+3)/4-334/100, -13/4(-334×4)/(100×4), (-13×100)/(4×100)-1336/400, -1300/400Hence, -1336/400 < -1300/400
So, we can conclude that: [tex]-4\frac{66}{100} < -4\frac{3}{4}[/tex]Therefore, the fraction [tex]-4\frac{66}{100} < -4\frac{3}{4}[/tex].
Know more about fractions here:
https://brainly.com/question/17220365
#SPJ1
identify the set or sets of numbers that belong to -8/5
Answers
The number of the sets is the {1, 2/5,4/5,8/5}.
According to the statement
We have to find that the sets of numbers.
So, For this purpose, we know that the
A set of numbers is a collection of numbers, called elements. The set can be either a finite collection or an infinite collection of numbers.
From the given information:
The set or sets of numbers that belong to -8/5.
For make a set of the numbers we have to find the those number which are the divisible on the number -8/5.
Then
Let the number 1, 2/5,4/5,8/5.
And these are the numbers which are the divisible on the -8/5 and give some perfect value like 1, 2 etc.
The set of the numbers = {1, 2/5,4/5,8/5}
So, The number of the sets is the {1, 2/5,4/5,8/5}.
Learn more about set of numbers here
https://brainly.com/question/26856218
#SPJ9