Explanation:-
Given sets are A = { 1,20,30}
B = { 4,6}
Now,
A-B = { 1,20,30} -{ 4,6}
⇛ A-B = { }
Since there are no common elements in both A and B sets
⇛Number of elements in A-B = 0
⇛n(A-B) = 0
Therefore, n(A-B) = 0
ADDITIONAL COMMENT:
Points to know:-
Empty set :-
A set having no element is called an empty set or void set or null set .It is denoted by phi or { } The cardinal number of the Null set = 0Difference of two sets :-
A and B are two sets ,The set of elements which belongs to A and does not belong to B is called The difference between the two sets A and B and it is denoted by A-B.Cardinal number of a set :-
The number of all distinct elements in a set is called its Cardinal number .It is denoted by n(A).6/5 - 1/3 ...............................ASAP
13/15 is the answer because if you subtract 6/5 and 1/3 you get .86667 and if you convert that to a fraction it would be 13/15.
what is 2(1+5x)-3x=72 solve for x please
Answer:
x = 10
Step-by-step explanation:
2(1+5x)-3x=72
Distribute
2 + 10x -3x = 72
Combine like terms
2+7x=72
Subtract 2 from each side
2+7x-2 = 72-2
7x = 70
Divide by 7
7x/7 = 70/7
x = 10
Solve for x+6y=-2 to slope intercept form
Answer:
y=-1/6x-1/3
Step-by-step explanation:
x+6y=-2
6y=-2-x
y=-1/6x-1/3
Number Puzzle.
3. Here is a number puzzle that uses math. Some might call it a magic trick!
a. Think of a number.
b. Double the number.
c. Add 9
d. Subtract 3.
e. Divide by 2.
f. Subtract the number you started with.
g. What is your answer?
h. Why is it always 3?
I just did it and it's 3 who came up with this
(20 Points) Please help!
What is the value of x? What is the measure of each exterior angle?
Answer:
70, 84, and 116
Step-by-step explanation:
(x) + (x + 14) + (2x - 24) + 90 = 360
4x - 10 + 90 = 360
4x = 280
x = 70
x + 14 = 84
2x - 24 = 116
Using the information in the map, what is the distance between Camden and Lowell? Explain your reasoning using correct Geometry justification. For the ease of symbols used in your justification, let Morsetown be point o, Meridian be point M, Grenata be point G, Camden be
point C, and Lowell be point L.
The map below shows five different towns. The town of Meridian wasgiven its name because it lies exactly halfway between two pairs of cities:
Camden and Grenata, and Lowell and Morsetown.
Answer:
5 miles
Step-by-step explanation:
We are looking at triangles LCM and OGM.
Point M is the midpoint of segments LO and CG.
That makes segments CM and GM congruent (side).
Then angles CML and GMO are congruent since they are vertical angles (angle).
Finally, segments LM and OM are also congruent because of the midpoint (side).
By SAS, triangles LCM and OGM are congruent.
Then by CPCTC, segments LC and OG are congruent.
Since OG = 5 miles, then LC = 5 miles.
Answer: 5 miles
3a x 5b to the power of C Divided by D =2581
IF YOU ANSWER THIS CORRECT YOULL BE REWARDED WITH 100 POINTS THIS QUESTION IS VERY HARD
Answer: 3 x (5b) = 15ab C = 15ab D = 2581 == 2581
Step-by-step explanation: Use the given functions to set up and simplify C.
Please answer the question in the image below
CORRECT ANSWERS WILL GET BRAINLIEST
if 5+1 is 6 and 37+13 is 50 how many colors are in the alphabet on the airplane.
Answer:
26 + 7 = 33
Step-by-step explanation:
find the midpoint of the segment with the endpoints (-2,-6) and (8,8)
Answer:
(3,7)
Step-by-step explanation:
no time thank you
Answer:
The midpoint of the segment with points (-2,-6) and (8,8) is (3,1).
What is the midpoint?
The midpoint of a line segment is known as the midpoint in geometry. It is the centroid of the segment and of the ends, and it is equally distant from both of them. It cuts the section in half.
The given points are ( -2,-6) and (8,8). The formula to calculate the midpoint is given below:-
Midpoint = ( x₁ + x ₂ ) / 2 , ( y₁ + y₂ ) / 2.
Midpoint = ( -2 + 8 ) / 2 , ( -6 + 8 ) / 2
Midpoint = (3,1)
Therefore, the midpoint of the segment with points (-2,-6) and (8,8) is (3,1).
To know more about midpoint follow
brainly.com/question/1767456
#SPJ2
HURRY!!!!
Use synthetic division to solve '--------'
What is the quotient?
Answer:
2x² + 10x - 5
Step-by-step explanation:
Using synthetic division to perform the division
3 | 2 4 - 35 15
↓ 6 30 - 15
--------------------------
2 10 - 5 0 ← remainder
Since remainder is zero then (x - 3) is a factor of 2x³ + 4x² - 35x + 15
quotient is 2x² + 10x - 5
BRAINLIEST
please help me ty
You can just do one question but I would appreciate both
Answer:
3. m1=82, m4=59. m5=98, m6=51, m7=79, m9=51, m10=129
4. m1=36, m2=90, m4=36, m5=90, m6=54, m7=126, m8=54, m9=126, m10=54, m11=36, m12=144, m13=36, m14=144
Step-by-step explanation:
3. m2=98, m3=23, m8=70
by supplementary angles, m1 + m2 = 180, since we know m2, we have m1 = 180 - 98 = 82. by corresponding angles we have m1 = m3 + m4, since we know m1 and m3, we have m4 = 82 - 23 = 59. again by supplementary angles, m3 + m4 + m5 = 180. we know m3 and m4 so m5 = 180 - 23 - 59 = 98. by alternate interior angles m4 = m7, so m7 = 59. by supplementary angles m6 + m7 + m8 = 180 so m6 = 180 - 70 - 59 = 51. by corresponding angles m6 = m9 so m9 = 51. by supplementary angles m9 + m10 = 180 so m10 = 129
4. m3=54
m2 is a right angle so m2=90. by complementary angles m3 + m4 = 90 so m4 = 36. by vertical angles m1=m4 so m1=36. by vertical angles m2=m5 and m3=m6 so m5=90 and m6=54. by corresponding angles m7 = m2+m1 so m7=126. by supplementary angles m7+m8 = m7+m10 = 180 so m8=10=54. by vertical angles m7=m9 so m9=126. by corresponding angles m1=m11 and m3=13 so m11 and m13 = 54. by supplementary angles m12+m13= m11+m14 = 180, so m12 = m14 = 144
Answer:
Step-by-step explanation:
ANSWER ASAP PLEASE!!!!!!!! :)
An obtuse triangle always has only one vertex with an acute exterior angle.
True or false?
How to order the steps for writing an inequality. (First to last) DUE IN 5 MINUTES, Plz help. GIVING BRAINIEST AND POINTS
__
Identify all the important information
__
Define the variable
__
Read through the entire problem
__
Write an inequality using the inequality sign, important information, and the variable
__
Identify the words that represent the inequality symbol and determine the inequality symbol those words represent
Answer:
The graph of a linear inequality in one variable is a number line. Use an open circle for < and > and a closed circle for ≤ and ≥.
The graph for x > -3
<( not the writeing part UGH!!
Inequalities that have the same solution are called equivalent. There are properties of inequalities as well as there were properties of equality. All the properties below are also true for inequalities involving ≥ and ≤. The addition property of inequality says that adding the same number to each side of the inequality produces an equivalent inequalit. The subtraction property of inequality tells us that subtracting the same number from both sides of an inequality gives an equivalent inequality. The multiplication property of inequality tells us that multiplication on both sides of an inequality with a positive number produces an equivalent inequality. Multiplication in each side of an inequality with a negative number on the other hand does not produce an equivalent inequality unless we also reverse the direction of the inequality symbol. The same goes for the division property of inequality.Division of both sides of an inequality with a positive number produces an equivalent inequality.And division on both sides of an inequality with a negative number produces an equivalent inequality if the inequality symbol is reversed.To solve a multi-step inequality you do as you did when solving multi-step equations. Take one thing at the time preferably beginning by isolating the variable from the constants. When solving multi-step inequalities it is important to not forget to reverse the inequality sign when multiplying or dividing with negative numbers.
Dr.huely told bob to drink 4 galleons of water everyday. After 7 days How many galleons of water did bob drink
Answer:
28 gallons
Step-by-step explanation:
since he drank 4 gallons every day for four days, you just have to do 4*7
that is 28
need help
Evaluate each expression
Hey there!
|h - j|
= |-12 - 4|
= -12 - 4
= |-16|
= 16
Therefore, your answer is: 16
Good luck on your assignment and enjoy your day!
~Amphitrite1040:)
*69 points*
The graph shows the number of sprays an automatic air freshener dispenses, y, in x minutes:
A graph is shown. On the x-axis, the values are from 0 till 150 in increments of 30 for each grid line, and on the y axis, the values are from 0 to 30 in increments of 6 for each grid line. The title of the graph on the x-axis is Time in minutes, and the title on the y-axis is Number of Sprays. A line is shown connecting points on ordered pair 30, 6 and 60, 12 and 90, 18 and 120, 24. The title for the graph is Dispense Rate.
Which expression can be used to calculate the rate per minute at which the air freshener dispenses sprays?
fraction 30 over 6
fraction 24 over 30
fraction 30over 24
fraction 6 over 30
Answer:d 6/30
Step-by-step explanation:
A pound of chocolate costs 7 dollars. Milan buys p pounds. Write an equation to represent the total cost c that Milan pays.
Answer:
A pound of chocolate costs 7 dollars. Milan buys p pounds. Write an equation to represent the total cost c that Milan pays.
c = 7xp.
Step-by-step explanation:
URGENT! No links please!
Answer:
1) 17 units
Step-by-step explanation:
using pythagoean theorm you need to square 8 and 15 and add them and then take the sqaure root and finally you will get 17
Solve the system of equations by substitution.
y = 4x -1
2x + 2y = 3
Step-by-step explanation:
y = 4x - 1
2x + 2y = 3
2x + 2(4x - 1) = 3
2x + 8x - 2 = 3
10x = 3 + 2
x = 5/10
x = 1/2
y = 4x - 1
y = 4(1/2) - 1
y = 2 - 1
y = 1
(x,y) = (1/2 , 1)
Find the next term in the arithmetic sequence if the first term is 3 and the common difference = 8.
Answer:
i think that should be 11
Step-by-step explanation:
Answer:
Step-by-step explanation:
11
Which relation below does not represent a function
In a class, there are 15 students who like chocolate. 13 students like vanilla. 10 students like neither. If there are 35 people in the class, how many students like chocolate and vanilla
Answer: 3
Step-by-step explanation: just do 15+13+10 which is 38 And then subtract 35 from 38 which gives you your answer 3
i will give brainliest bc i need help
Answer:
3.8 in
Step-by-step explanation:
Answer:
3 4/5 (three and four-fifths)
Step-by-step explanation:
convert the mixed number to improper fractions, find the LCD and combine
19/5 -- 3 4/5
anyone knows who Wilbur soot is?
if so whats your favorite song of his?
Answer:
internet ruined me
Step-by-step explanation:
How would I solve this? Help me, thank you.
Answer:
since they said ‘when’ x = -2
just substitute -2 for x
x^3 - x + 4
substitute to get
-2^3 - (-2) + 4
which becomes
-8 + 2 + 4 = -8+6 = -2
Answer:
C, -2
Step-by-step explanation:
-2 x -2 x -2 = -8
-8- -2 = -8 + 2 = -6
-6+4=-2
given segment CD explain how to construct a square with sides of length CD
Answer:
cd
Step-by-step explanation:
A mistake was made in the steps shown to simplify the expression. Which step includes the mistake?
Answer:
7 if my calculations are right im sorry if its wrong i tried hard :D
what the answer plzzhelppp
Step-by-step explanation:
You have to find the decimals of them
So the 3rd on is correct
Correct order:-
0.4<0.5<0.74/5<7/12<6/8What is the value of sin(4x-8)^ =cos 36^
pls help i’m taking a test
Answer:
x=1.968009
Step-by-step explanation:
I hope this is correct
i hope this is correct
