Find a counterexample to show that we don't always have equality.
Answer:
Hello your question is incomplete below is the complete question
Let R be a relation from A to B and S a relation from B to C.
(a) Prove that . [tex]Dom(S \circ R) \subseteq Dom(R)[/tex]
(b) Find a counterexample to show that we don’t always have equality.
answer : (b) Dom ( S o R ) = [ 1 ] and Dom ( R ) = [ 1, ∝ ]
hence: Dom ( S o R ) ≠ Dom ( R )
Step-by-step explanation:
Note : R ⊆ A * B and S ⊆ B * C
A) To prove that [tex]Dom(S \circ R) \subseteq Dom(R)[/tex]
we take note that : S o R ⊆ A x C
ATTACHED BELOW IS THE REMAINING PART OF THE SOLUTION
B) A counterexample to show that we don't always have equality
attached below is a assumptions and solution on how we arrived at the value below
Dom ( S o R ) = [ 1 ] and Dom ( R ) = [ 1, ∝ ]
hence: Dom ( S o R ) ≠ Dom ( R )
The winning speed in the 2011 Indianapolis 500 was 170.265 miles per hour. What
is that speed rounded to the nearest tenth of a mile per hour?
Answer:
The answer to this problem is 170.300
Write an equation of a line that is perpendicular toy-2/3%+2
that passes through the point(2.2)
Answer:
Step-by-step explanation:
perp. 3/2
y - 2 = 3/2(x - 2)
y - 2 = 3/2x - 3
y = 3/2x - 1
2. The sum of three consecutive odd integers is 105.
What are the three numbers.
Answer:
33, 35, 37
Step-by-step explanation:
They come one after the other making them consecutive, they are all odd, and equal 105 when added.
-1-(-13)
How to simplify the equation
Answer:
12
Step-by-step explanation:
Subtracting a negative is like adding
-1 - (-13)
-1 + 13
Rewriting
13 -1
12
Calculate the quotient below and give your answer in scientific notation. 1.72 x 10^0 / 4.0 x 10^-3
Which phrase best describes f(x), graphed on the coordinate plane below? On a coordinate plane, a curve goes through two cycles. The first part of the curve approaches x = negative 6, has a maximum at (negative 4, 3), and has a minimum at (negative 2, negative 2). The second part of the curve has a maximum at (1.5, 2.5), has a minimum at (4, negative 3), and approaches x = 6. f(x) is an odd function. f(x) is an even function. f(x) is both odd and even. f(x) is neither odd nor even.
Answer:
It's an odd function.
Step-by-step explanation:
Answer:
a. f(x) is an odd function.
Step-by-step explanation:
Can someone please solve this equation for me 5.50x=266
Answer:
1463
Hi There!
Remember, when multiplying with decimals never forget to add the decimal!
Some movies are profitable and others are not . Understandably , the movie industry would like to know what makes a movie successful . Data from 728 first-run movies released in 2011 suggest that longer movies actually make less profit. Identify the sample .
Answer:
The sample is the 728 first run movies released in 2011
Multiply: (x – 4)(x + 5)
(a) x2 + 5x - 20,
(b) x2 - 4x - 20,
(c) x2 - x - 20,
(d) x2 + x - 20.
Answer:
D. x2 + x - 20.
Step-by-step explanation:
(x – 4)(x + 5).
= x(x + 5) -4(x + 5).
= x2 + 5x – 4x – 20.
= x2 + x - 20.
The length of a table is given in inches, centimeters, and millimeters. Which unit of measure is the most accurate?
4) An art classroom has 5 boxes with sharpie pens and clipboards. Each box has 4 sharpies.
There are 25 supplies in all. How many total clipboards are there?
5 clipboards
4 sharpies times 5 boxes = 20 sharpies
25 total - 20 sharpies = 5
5 clipboards
SHOW WORK !!! BRAINLIST !!
Answer:
[tex]x^3y^5[/tex]
Step-by-step explanation:
[tex]\frac{(x^3y^2)^2(xy^2)}{x^4y} = \frac{(x^6y^4)(xy^2)}{x^4y}=\frac{x^7y^6}{x^4y} =x^3y^5[/tex]
Here , the general rules followed are :-
i) [tex]x^m * x^n =x^m^+^n[/tex]
ii) [tex](x^my^n)^z = (x^m^z)(y^n^z)[/tex]
iii) [tex]\frac{x^my^n} {x^ay^b} = (x^m^-^a)(y^n^-^b)[/tex]
choose the correct math expression for :36 minus the quotient of a and 4
Two times Noura's age plus 5 years equals Ali's age. Ali is 19 years old. What formula could be used to calculate Noura's age
Answer:
Noura is seven years old
Step-by-step explanation:
to get Noura's age first you need to subtract 5 years from Ali's age which will get you to 14 years of age now you just need to divide 14 by two to get Noura's age which is seven
A bouquet has 6 roses and 21 other types of flowers. What is the ratio of roses to other flowers?\
Answer:
2:7
Step-by-step explanation:
6:21 /3 = 2:7
Solve the following linear equation for x. 12(2x+6)=−3(x−1)−2+2x x=
Answer:
Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :
6-2*x-(3)=0
Step by step solution :
STEP
1
:
Solving a Single Variable Equation
1.1 Solve : -2x+3 = 0
Subtract 3 from both sides of the equation :
-2x = -3
Multiply both sides of the equation by (-1) : 2x = 3
Divide both sides of the equation by 2:
x = 3/2 = 1.500
x = 3/2 = 1.500
Step-by-step explanation:
hope this helps
Is V'8 greater than, less thar, or equal to 4? Explan
Answer: Less than.
Step-by-step explanation:
[tex]\sqrt{8}[/tex] is less than 4 because [tex]4^{2}[/tex] is 16. And [tex]\sqrt{8} ^{2}[/tex] is 8.
l= 9.25 cm; A = 55.5 cm square
Answer:
shhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
Step-by-step explanation:
Mary determined that her father's age is four less than three times her age. If represents Mary's age,
which expression represents her father's age? (A.SSE.1.b)
A) 3x-4
B) (x-4)
C) 4x-3
D) 4-3x
Answer:
B
Step-by-step explanation:
3x-4 represent father's age
Use the expressions below to complete the following sentences.
Apples: $(2x) per pound
Grapes: $(6x-5) per pound
Oranges: $(x+2) per pound
A shopper purchases one pound each of apples, grapes, and oranges and spends $10.50.
The shopper spent
dollars on apples.
The shopper spent
dollars on grapes.
The shopper spent
dollars on oranges.
True or False: If your expression contains more than one set of parentheses, you should evaluate all of them before doing anything else. A True B False
Answer:
TRUE
Step-by-step explanation: It's the first step in the order of operations.
What is the equation the line that is perpendicular the given line and has an x-intercept of 10 8 (- 4, 4) y = 3/4 * x + 8 y = - 3/4 * x + 6 (4, - 2) 6: y = 4/3 * x - 8 y = 4/3 * x - 6
A student makes a number of measurements of electrical current in the circuit. The average of the measurements is 12.33 mA. The standard deviation of the sample is 0.14 mA. How should this measurement be written to the correct number of significant figures with error range to show a 95% confidence
Answer:
The way to represent this it is
[tex] 12.33 - \frac{0.27}{\sqrt{n} } < \mu < 12.33 + \frac{0.27}{\sqrt{n} } [/tex]
Step-by-step explanation:
From the question we are told that
The sample mean is
The standard deviation is
Given that the confidence level is 95% then the level of significance is mathematically represented as
[tex]\alpha = (100-95)[/tex]
[tex]\alpha = 0.05[/tex]
The critical value for [tex]\frac{\alpha }{2}[/tex] is obtained from the normal distribution table that value is
[tex]Z_{\frac{\alpha }{2} } = 1.96[/tex]
Now the margin of error is mathematically represented as
[tex]E = Z_{\frac{\alpha }{2} } * \frac{s}{\sqrt{n} }[/tex]
[tex]E = \frac{0.27}{\sqrt{n} }[/tex]
Now the error range to show a 95% confidence is mathematically represented as
[tex]\= x - E < \mu < \= x + E[/tex]
[tex] 12.33 - \frac{0.27}{\sqrt{n} } < \mu < 12.33 + \frac{0.27}{\sqrt{n} } [/tex]
Here notice that the significant figure is keep to three to match the significant figure of the given values
4-2(3x+1) - (4x-3)
Answer: 5-10x
I really hope this helps you, I tried my best to explain it!
AB has a midpoint at (4,6). If A has a coordinates of (0,4), find the coordinates of B
Answer:
Step-by-step explanation:
(x+0)/2 = 4
x + 0 = 8
x = 8
(y+4)/2=6
y+4 = 12
y = 8
(8,8)
Please help or i am grounded
Answer:
[tex]x=140[/tex]
Step-by-step explanation:
Do not get grounded.
An angle at a point is 360°.
So, [tex]x+120+70+30=360[/tex]
[tex]x+220=360[/tex]
[tex]x=140[/tex]
Remember this All the angles around a point when added gives a 360° !
Thus,
30+ X +70+120 = 360
=> X + 220 = 360
=> X = 140°Point Bis on line segment AC.Given AB 4. - 6, AC = 2x + 10, and
BC = 4, determine the numerical length of AC.
Answer: AC
Submit Answer
attempt
Answer:
5
Step-by-step explanation:
100 POINT QUESTION + BRANLIESt What is 2+2?
Answer:
4
Step-by-step explanation:
Yeah if you don't know this one... you're... special.
If a desk is $186with a discount of 50% what is the original retail price for the desk
Answer: $372
Step-by-step explanation:
Let the original retail price be 'x'
Therefore, using the give information, we can form the following equation:
50/100x = 186
Now, solve for x
50/100x = 186
1/2x = 186
x = 186 * 2
x = 372
The original retail price is $372.
Check:
50/100(372) = 186
1/2(372) = 186
186 = 186
