Answer:
1116
Step-by-step explanation:
1. A = {1,2} B {3,4,5,6} then n(A)+n(B) = ?
2. The symbol ⇛means____.
3. A = ø, B = ø then AUB =
4. AUB = BUA is called_____law.
5. Cordinal number of Null set is _____.
6. If AUB = then _____.
7. If A = {1,2,3,4}, B = {2,4,6,8}, then A-B =____.
8. If n(AUB) = 8, n(A) = 6, n(B) = 4 then n(A∩B) _____.
Explanation:-
★(i).
A = { 1,2}
⇛ n (A ) = 2
B = { 3,4,5,6}
⇛ n (B) = 4
n(A)+n(B) = 2+4 = 6
★(ii).
The symbol ⇛ means Implies
★(iii).
A = Phi = {}
B = phi = {}
AUB = { } U { } = { }
AUB = phi = { }
(iv).
AUB = BUA is called Commutative law in sets uner union .
★(v).
Null set = Void set = Empty set = { }
Number of elements in the empty set = 0
⇛ Cardinal number of null set is zero (0)
★(vi). If AUB = B then B is the super set and A is the sub set of B
★(vii). A = { 1,2,3,4}
B = {2,4,6,8}
A-B = {1,2,3,4} - { 2,4,6,8}
=> A-B = { 1,3}
★(viii). n(AUB) = 8
n(A) = 6
n(B) = 4
We know that
n(AnB) = n(A)+n(B)-n(AUB)
⇛ n(AnB) = 6+4-8
⇛n(AnB) = 10-8
⇛ n(AnB) = 2
or n(AUB)+n(AnB) = n(A)+n(B)
⇛ 8+ n(AnB) = 6+4
⇛ 8+ n(AnB) =10
⇛ n(AnB) = 10-8
⇛ n(AnB) = 2
Therefore, n(AnB) = 2
What is the measure of angle LPM if angle QPN=36 ?
i am completely new to algebra and quadratic equations please help me i cannot understand a single thing
Answer:
well in algebra we work with slope. we do other things but you use this the most.
Step-by-step explanation:
the equation for slope is y=mx+b. mx is the slope and b is the y-intercept. example: y=2x+6. the slope is 2 and the y-intercept is 6.
How much time would it take for an airplane to reach its destination if it traveled at an average speed of 250 m/s for a distance of 500,000 meters?
Answer:
2000 seconds which is 33.33minutes
Step-by-step explanation:
Pleaaaaaaaaaase help please please please
Answer:
y = x - 2
Step-by-step explanation:
Using any two points to find the slope. I will using (3, 1) and (7, 5)
Slope = (change in the y values)/(change in the x values)
Slope = (5 - 1)/(7 - 3) = 4/4 = 1
Next find the y -intercept "b", using the table to find the value of y when x is zero. That point is (0, -2) . So the y-intercept ("b") is -2
or use one of the point (7, 5) and substitute into the slope- intercept formula and solve for "b'
y = mx + b
5 = 1(7) + b
5 = 7 + b
-2 = b
Write the equation in the slope-intercept form y = x - 2
Mrs. Ebner had 72 plants in her garden. 1/2 of the plants were red peppers and 1/3 of the plants were green peppers. The rest of the plants were carrots. How many plants were pepper?
Answer:
5/6.
Step-by-step explanation:
Because 1/2 + 1/3 = 3/6 + 2/6 = 5/6. It doesn't matter that the rest were carrots, the question is asking how many were peppers and 5/6 were.
What is the equation of the line that passes through the point (−6,−6) and has a slope of
2/3
Given that we have the slope and a point on the graph we can use the point slope formula to find the equation of the line.
Point-Slope Formula:
y−y1=m(x−x1), where m is the slope of the line and x1 and y1 are x and y coordinates of a given point
PLEASE HELP I WILL GIVE BRAINLIEST
Answer:
8,4
Step-by-step explanation:
the figure is translated 8 units to the right and 4 up
Helppppppppppppppppppppppp PLS
Answer:
translated up 4 units and s(t)= 22.5t + 775
Step-by-step explanation:
first one count spaces between lines. second one add the t's together and the numbers to get final answers
how to solve[tex]y=20 (\frac{1}{4})^{x[/tex]
Answer:
l
Step-by-step explanation:
(2x+3)^=(3x-1)^ what is The Solution Of This Equation
Claudia ha decidido realizar sus controles médicos, ella es considerada una
paciente vulnerable pues dentro de 10 años tendrá el doble de la edad que
tenía hace 25 años, ¿Cuál es la edad actual de Claudia? Aplica un
procedimiento y justifica tu respuesta.
Considerando la definición de una ecuación, la edad actual de Claudia es 60 años.
Una ecuación es la igualdad existente entre dos expresiones algebraicas conectadas a través del signo de igualdad en la que figuran uno o varios valores desconocidos, llamadas incógnitas, además de ciertos datos conocidos.
Los miembros de una ecuación son cada una de las expresiones que aparecen a ambos lados del signo igual.
En este caso, "dentro de 10 años Claudia tendrá el doble de la edad que tenía hace 25 años," puede ser expresado mediante una ecuación, donde consideras que "x" es la incógnita, que representa la edad actual de Claudia.
Teniendo en cuenta que el doble de un número se calcula multiplicando el número por 2, entonces:
Dentro de 10 años: x +10 Edad que tenía Claudia hace 25 años: x-25El doble de la edad que tenía Claudia hace 25 años: 2×(x-25)=2(x-25)Entonces, la ecuación queda expresada como:
x+10=2(x-25)
Resolviendo:
x+10=2x-50
10 + 50= 2x - x
60= x
Finalmente, la edad actual de Claudia es 60 años.
Aprende más sobre ecuaciones con estos ejemplos:
brainly.com/question/24581345 brainly.com/question/24585838?referrer=searchResults brainly.com/question/24603998 brainly.com/question/22694378?referrer=searchResultsPLEASE HELP !!
Is ( − 3) a factor of x^3 + 3^2 − 10x − 30
The answer of x^3+3^2-10x-30 is - 18
what is the answer for 2m+6m=32
Answer:
m=4
Step-by-step explanation:
2m+6m = 8m
8m=32
m=32/8
m=4
An internet sales site deducts a 5% fee from the sale price of all items. A seller received $27.45 for an item after the fee was deducted. What was the sale price of the item?
Answer:
68
Step-by-step explanation:
27.5 times am/2 the constant of fee's theroem to get the 5 percent fee.
Multiple by 20(20*5=100) to get 68
Rewrite as a simplified fraction:
1.323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323(infinite 32323)
Answer:
the answer is 1 & 32/99 (131/99)
What's the difference between linear equations and algebra?
Answer:
So, Linear equations is the branch of algebra which deals with equality based equations with the infinite number of variables (highest index of any variable is one.)
Whereas, algebra is the branch of mathematics which deals with the variables, constants and the relationship between them
Step-by-step explanation:
\sqrt{ 6+2 \sqrt{ 5 \phantom{\tiny{!}}} \phantom{\tiny{!}}} + \sqrt{ { \left(3+ \sqrt{ 5 \phantom{\tiny{!}}} \right) }^{ 2 } \phantom{\tiny{!}}}
Answer:
17sqrt(13)
Step-by-step explanation:
Question 19 (03.06 LC)
Choose the equation below that represents the line passing through the point (1, -4) with a slope of 1/2. (1 point)
y - 4 = 1/2(x +1)
y + 4 = 2(x - 1)
y + 4 = 1/2(x - 1)
y - 4 = 2(x + 1)
Answer: y + 4 = 1/2(x - 1)
Step-by-step explanation:
The form of a straight line quation is y=mx+b, where m is the slope [(1/2) in this case] and b is the y-intercept (the value of y when x=0). We can already eliminate two of the options (2nd and 4th) since those slopes are 2.
To decide between y - 4 = 1/2(x +1) and y + 4 = 1/2(x - 1), we can see which equation is true for the point (1,-4):
Does y - 4 = 1/2(x +1) work for (1,-4)? [i.e., will y = -4 when x=1?]
y-4 = 1/2(1+1)?
y = 5 NO
-----------------------------
Does y + 4 = 1/2(x - 1) work for (1,-4)? [i.e., will y = -4 when x=1?]
y+4 = 1/2(1-1)
y = -4 YES
The equation is y + 4 = 1/2(x - 1)
Solve for x.
(Round to the nearest
hundredths.)
5x = 2
Answer:
0.4
Step-by-step explanation:
x=2/5
2/5=0.4
Answer:
x=0.4
Step-by-step explanation:
5x=2
Divide 5 on both sides of the equation.
The 5 should be canceled out by its self
And drop the x down, and you should have left
over the 2 divided by 5, which should give you
x=0.4
And 0.4 is already rounded so that should be your final answer.
Which expression is equivalent to (12 + 5) – (14 ÷ 7)²
A] 5 + 15 ÷ (3 + 2)²
B] 2 × (9 × 5 + 3²) + 4
C] 7 + 10 × 5 + 10
D] 5 • 6 + 1 – (10 + 8)
Answer:
bro its d
Step-by-step explanation:
the math
5 • 6 + 1 = 31
31 - (10+8 or 18) = 13 and
(12 + 5) – (14÷ 7)² = 13
17 – 2 = 13
What is the y-intercept of this line:
7(2x - 3y) = 28
Answer:
14
Step-by-step explanation:
please can i have the crown?
Three concert tickets cost $120. At this rate, what is the cost per ticket?
Answer: The answer is $40 per ticket.
Step-by-step explanation: Divide 120 by 3 to get 40. Hope this helps!
Answer:
$40
Step-by-step explanation:
3 tickets cost : 120
1 ticket cost : 120 ÷ 3
= 40
Show that 4 1/5 times 2 3/7 = 10 1/5
Answer:
4 1/5= 21/5
2 3/7= 17/7
21/5×17/7= 357/35
357/35= 10 1/5
Step-by-step explanation:
PLEASE HELP!! thank you :)
Which is the better buy: $40.00 for 30 gallons of gas or $8.50 for 8 gallons of gas?
Answer:
8.50 per 8 gallons is better
Step-by-step explanation:
40/30=1.33 per gallon
8.50/8=1.06 per gallon
pls mark branliest
Write the transformation rule that transforms ABC into the triangle below it
Answer:
It looks like its being reflected across y = x, so the rule would be
(x, y) —> (y, x)
Lauren's science class is taking a field trip to the nearest natural history museum. The museum is 62.5 miles from Lauren's school. The class plans to stop after 30 minutes, or 0.5 hours, to visit a local wildlife refuge. The bus driver plans to drive at an average speed of 50 miles per hour. How many hours will the second part of the trip take?
Write your answer as a whole number or a decimal.
The second part of the trip lasted 0.54 hours
Average speed is the ratio of total distance travelled to total time taken. It is given by:
Average speed = total distance / total time
Since the total distance is 62.5 miles and the average speed is 50 miles per hour, hence:
Average speed = total distance / total time
60 = 62.5 / total time
Total time = 25/24 hours
The first part of the journey takes 0.5 hours, hence:
Time for second part = 25/24 - 0.5 = 0.54 hours
Therefore the second part of the trip lasted 0.54 hours
Find out more at: https://brainly.com/question/12322912
Answer:0.75
Step-by-step explanation:
the verified dude was wrong
Steps for 8 (-3d + 2) =88
Hi how u doin ?
[tex]8( - 3d + 2) = 88[/tex]
Let's see what we got here ....
First of all Divide both sides by 8
[tex] \frac{8( - 3d + 2)}{8} = \frac{88}{8} \\ [/tex]
Simplification
[tex] - 3d + 2 = 11[/tex]
Subtract both sides 2
[tex] - 3d + 2 - 2 = 11 - 2[/tex]
[tex] - 3d = 9[/tex]
Divide both sides by - 3
[tex] \frac{ - 3d}{ - 3} = \frac{9}{ - 3} \\ [/tex]
Simplification
[tex]d = - 3[/tex]
And we're done...
Don't have a good day , Have a great day ❤
George baked a cake to share with his family. Jenny ate of
the cake and Brett ate ſ of the cake. How much of the cake did
Jenny and Brett eat in all?
Answer:
he naja
Step-by-step explanation:
ate as mjuchas my othjer would
