Answer:
All functions are relations, but not all relations are functions. A function is a relation that for each input, there is only one output. Here are mappings of functions. The domain is the input or the x-value, and the range is the output, or the y-value.
Answer:
Step-by-step explanation:
A relation between members of two sets X and Y is any set of ordered pairs {(x1,y1) (x2,y2) … }, finite or infinite in their number, provided the first member is from X and the second member is from Y. (Let’s not mention the uncountable possibility here).
E.g., if X = {Sunday, Monday, …, Saturday} and Y = {1,2, …, 31}, then the set {(Monday,1) (Tuesday,2) … (Monday,8) (Tuesday,9) … (Sunday,28)} is a useful relation for some February calendar, somewhere. It is “one-to-many”. And note that set Y need not be covered, but X must be. This distinguishes the domain of the relation (days of the week here) from its codomain (whole numbers 1 to 31 here).
Considering the vast set of all relations, there is one subset of great importance, those relations that have unique codomain values for each domain value. That is, each x in X is paired unambiguously with exactly one y in Y. These special relations are functions. The set of y in Y which have been paired with some x in X is called the range of f. Functions may still be “many-to-one”, as in y = r(x) which gives x rounded to the nearest integer. Thus r(2.3) = r(1.9) = 2.
Within the subset of functions are the one-to-one functions, which also have the property that every y in the range is paired with exactly one x in the domain. Because of this, these are the only functions that have an inverse function. Thus, the inverse function can be written as {(y1,x1) (y2,x2) … }. This shows that the domain and range of the original function are exactly exchanged in the inverse function.
E.g., y = tan(x) is one-to-one with domain [-pi/4 , pi/4] and range [-1,1]. Its inverse is x = arctan(y) with domain [-1,1] and range [-pi/4 , pi/4]. The roles of x and y are unambiguous, and shouldn’t be exchanged: x always in [-pi/4 , pi/4] and y always in [-1,1].
Solve for m.
m+9=-2
m=?
Answer:
-11
Step-by-step explanation:
Because you just carry the nine over which when you switch it sides it becomes negative so it's -9 + -2 which equals negative 11
2.8 x 10^3=
What is the answer
Answer:
9.24
Step-by-step explanation:
1. How can you tell the difference between the pre-image and image when only given the coordinates or a picture.
Step-by-step explanation:
if u pour all the liquid in a cone into a cylinder with the same height and radius then you will fill half of the cylinder with liquid
Answer:
No, the liquid will not fill half of the cylinderStep-by-step explanation:
The volume of a cylinder is 3 times bigger than a cone with equal radius and height
To know this we have to compare the volumes of both solids first.
Let us assume the height and radius of the cone and radius are
6 and 2 mm respectively
so that the volume of a cone is given as
Volume of cone= 1/3 πr^2h
and the volume of cylinder is given as
Volume of cylinder= πr^2h
1. Volume of cone= 1/3 πr^2h
Volume of cone= 1/3 *3.142*(2)^2(6)
Volume of cone= 75.408/3
2. Volume of cylinder= πr^2h
Volume of cone= 3.142*(2)^2(6)
Volume of cone= 75.408
From the analysis the volume of a cylinder is three times bigger the volume of a cone with similar radius and height
Fertilizer for your lawn has to be mixed with water. Every 5 ounces of mix needs 1 gallon of water. How many cups of mix do you need if you are using 8 gallons of water?
Answer:
5 cups
Step-by-step explanation:
There are 8 ounces in a cup, so the ratio given is ...
5/8 cup : 1 gallon
Multiplying this by 8, we have ...
5 cups : 8 gallons
If you are using 8 gallons of water, you need 5 cups of mix.
im sorry I got the answer wrong and and was trying to delete it my original answer was 40 before zI realized i said ounces
Triangle EFG has vertices E(–3, 4), F(–5, –1), and G(1, 1). The triangle is translated so that the coordinates of the image are E’(–1, 0), F’(–3, –5), and G’(3, –3).
Which rule was used to translate the image?
T4, –4(x, y)
T–4, –4(x, y)
T2, –4(x, y)
T–2, –4(x, y)
Answer:
C.) T2, -4(x, y)Step-by-step explanation:
did on edge :)
The rule of translation of the triangle EFG is (c) T-2,4(x,y)
How to determine the translation rule?We have:
Pre-image: E(–3, 4), F(–5, –1), and G(1, 1).Image: E’(–1, 0), F’(–3, –5), and G’(3, –3).Taking E and E', we have:
E = (-3, 4)
E' = (-1, 0)
Subtract E from E'.
So, we have:
(x, y) = (-1 + 3, 0 - 4)
Evaluate
(x, y) = (2, -4)
This can be rewritten as:
T-2,4(x,y)
Hence, the rule of translation is (c) T-2,4(x,y)
Read more about translation at:
https://brainly.com/question/4289712
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Given h(x) = 3x + 4, solve for x when h(x) = 1
(Will mark brainliest)
Answer:
x is -1
Step-by-step explanation:
subtract 4 from 1 to get -3, then you have -3+3x then divide both sides by 3 to get x+-1
Answer:
-1
Step-by-step explanation:
1. nine more than thirty divided by ten
Answer:
3.9
Step-by-step explanation:
nine more than thirty=39
39/10=3.9
Look carefully at the graph and find the slope.
Answer:
1/10
Step-by-step explananation:
-2(x + 4) + 5x = 4
It's easier than it looks, but I still have problems.
[tex] \huge\boxed{Answer:} [/tex]
[tex] \sf -2(x + 4) + 5x = 4 \\\\\sf
=-2x-8+5x=4 \\\\\sf
=5x-2x-8-4=0 \\\\\sf
=3x-12=0 \\\\\sf
=3x=12 \\\\\sf
x=\frac{12}{3}\\\\\sf
x=\frac{ \cancel{12}}{ \cancel{3}}\\\\\sf
x=4
[/tex]
Hi, I am from India......
Happy to help you..
Which is a rational number?
-15/4
-7/9
4 with a rational sign?
pi
Answer:
All are rational numbers I guess
Step-by-step explanation:
NoTE : I'm not sure
Answer:
For the first one its 7/9 ig
Find the value of the variable.
Answer:
boom ganag
Step-by-step explanation:
Jesse wants to purchase three binders and a backpack. If the backpack costs $16, which equation represents the situation in which x denotes the cost per binder and y denotes the total cost of Jesse’s purchase?
The equation represents the situation in which x denotes the cost per binder and y denotes the total cost of Jesse’s purchase is 16+3x=y.
What is a linear equation?It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.
If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.
It is given that:
Jesse wants to purchase three binders and a backpack. If the backpack costs $16
From the data given in the question:
The linear equation can be framed as follows:
y = 16 + 3x
Or
16 + 3x = y
Thus, the equation represents the situation in which x denotes the cost per binder and y denotes the total cost of Jesse’s purchase is 16+3x=y.
The options are:
16+y=3x
16+3x=y
y+3x=16
3+16x=y
Learn more about the linear equation here:
brainly.com/question/11897796
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A recycling center has 100 kilograms of shredded plastic yogurt containers. What volume in m3 is needed to hold this amount of shredded plastic? Assume the lowest density within the range.
AnswerI dont kow
Step-by-step explanation:
What is the y intercept of this graph?. What is the slope?
Answer:
y intercept is -3
slope is 4
y=4x-3
Step-by-step explanation:
someone please help me
Answer:
1/49 it is the equal to that
Step-by-step explanation:
I
what is the unit rate of (0,0) and (12, 16)
A) 0.25 cm/s
B) 0.33 cm/s
C) 0.75 cm/s
D) 1.33 cm/s
Which is the right answer?
Answer:
Most likely B.
Step-by-step explanation:
A. When being compared to each other, they're not alternate interior angles.
B. I think so...?
C. Angle 3 is the only interior angle.
D. Pretty sure that they have to be on the same line to count as "supplementary".
The domain for the graph (in interval notation) is
Answer:
Domain: [-3, 1]
Step-by-step explanation:
Doman is the set of x-values that can be inputted into function f(x).
We see that our x-values span from -3 to 1. Since both have no holes, they are included in our domain:
[-3, 1] or -3 ≤ x ≤ 1
Omari and his two cousins received the same amount of money to go to the movies. Each boy spent $15. Afterward, the boys had $30.75 altogether. How much money did each boy receive?
Answer:
Each boy recieved $25.25 each
Step-by-step explanation:
First, you add up all the money the 3 boys spent.
15+15+15=45
Then you add the sum of the equation to the amount all the boys had afterward.
45+30.75=75.75
Finally, you divide that product to 3 boys.
75.75/3=25.25
Therfore the answer is $25.25 each.
2.5/6 = h/9 h=? What does this mean
Answer:
h = 3.75
Step-by-step explanation:
Step 1: Write equation
2.5/6 = h/9
Step 2: Solve for h
Cross multiply: 22.5 = 6hDivide both sides by 6: 3.75 = hRewrite: h = 3.75Step 3: Check
Plug in h to verify it's a solution.
2.5/6 = 3.75/9
0.416667 = 0.416667
Answer:
h = 3.75
Step-by-step explanation:
Given
[tex]\frac{2.5}{6}[/tex] = [tex]\frac{h}{9}[/tex] ( to solve for h, cross- multiply )
6h = 22.5 ( divide both sides by 6 )
h = 3.75
Greg has a container of building blocks that has 4 blocks in each row and 8 blocks in each column. How many
blocks are in Greg's container?
Answer:
If we are doing mulibleing
Step-by-step explanation:
8 x 4 is 32.
8 divided by 4 is 2.
What would the answers be for 2. And 3.?
Answer:
H and B
Step-by-step explanation:
For number 3 its B because pie = irrational
Answer:
For number 2 the answer is J.
For number 3 the answer is B.
Step-by-step explanation:
2. f(x)=2x+10
f(-8)=2(-8)+10
f(-8)=(-16)+10
f(-8)= -6
3. Pi is an irrational number so 32 with pi will also be irrational.
-2.5(-2-3x)+2.5(-4x-1)=-2x-4x
Answer:
x=−0.714286
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
−2.5(−2−3x)+2.5(−4x−1)=−2x−4x
(−2.5)(−2)+(−2.5)(−3x)+(2.5)(−4x)+(2.5)(−1)=−2x+−4x(Distribute)
(7.5x+−10x)+(5+−2.5)=(−2x+−4x)(Combine Like Terms)
Step 2: Add 6x to both sides.
Step 3: Subtract 2.5 from both sides.
Step 4: Divide both sides by 3.5.
x=−0.714286
Which unique point on this graph can represent the slope of the graph and the unit rate of change in the snow level?
Answer:I will give you an answer ,but I can't unless I can see the graph
Step-by-step explanation:
How do you isolate a variable?
Answer:
a variable is isolated by using the many properties.
these are addition, subtraction, division, and multiplication
Step-by-step explanation:
hope this helps!
2. Solve 8(4-x) = 10
[tex] x = 2 \frac{3}{4} [/tex]
Step-by-step explanation:
[tex]8(4 - x) = 10[/tex]
Expand :
8(4-x) = 32-8x
[tex]32 - 8x = 10[/tex]
Collect like terms and simplify
[tex] - 8x = 10 - 32 \\ - 8x = - 22[/tex]
Divide through by -8
[tex] \frac{ - 8x}{ - 8} = \frac{ - 22}{ - 8} [/tex]
Simplify
[tex]x = 2 \frac{6}{8} \\ \\ x = 2 \frac{3}{4} [/tex]
Answer:
x=2.75. 8(4-2.75)=8(1.25)=10.
P.s.
Please give me brainliest.
What is 3/2
5= Pls help me i have no clue and i have a math test soon pls help me
Answer:
15/2
Step-by-step explanation:
You have 3/2 5so you do 3 x 5 which is 15 then you have the answer. You keep the bottom number the same always
Solve for a.
a+0.3=−2
Answer:
a = −2.3
Step-by-step explanation:
Move all terms not containing a to the right side of the equation.
Answer:
a = -2.3
Step-by-step explanation:
move 0.3 onto the other side so it becomes -0.3now it is : a = -2 - 0.3(-2 - 0.3) is just -2.3a = -2.3Purpose is important because it reminds you why you're doing what you're doing when things get tough
O True
O False
