Answers
the answer is false
.....................................
Answer:
Homework #1-18: Answer yes or no, if no give the reason
1) Is A ⊆ B given A = silver, B = {gold, silver, diamond}
A is not a set, so it can’t be a proper subset.
Answer: no, because A is not a set
3) Is C ⊆ D given C = {Phoenix}, D = {Phoenix, Glendale, Peoria, Scottsdale}
I need two rules to work.
C is a set so rule 1 is satisfied.
Every element of C is also an element of D, so rule 2 is satisfied.
Answer: yes
5) Is A ⊆ B given A = {2,3} , B = {1,2,3,4,5}
I need two rules to work.
A is a set so rule 1 is satisfied.
Every element of A is also an element of B, so rule 2 is satisfied.
Answer: yes
7) Is A ⊆ B given A = a, B = {| }
A is not a set, so it can’t be a proper subset.
Answer: no, because A is not a set
9) Is A ⊆ B given A = { }, B = {1,2,3,4,5}
Answer yes: the empty set is a subset of every set.
11) Is S ⊂ T given, S= ∅, T = {1,2,3,4,5}
Answer yes: the empty set is a subset of every set.
13) Is A ⊂ B given A = {1,2,3}, B = {3,2,1}
This is not a true statement. The sets are equal and this symbol does not allow sets to be equal.
Answer: no, sets are equal
15) Is C ⊂ D given C = {1,2,3,4,5}, D = {1,2,3,4}
Answer: no, C is not contained in D, so this is not true
17) Is A ⊂ B given A = {4,3,2,1 }, B = {1,2,3,4,5}
A is a set so rule 1 is satisfied,
A is contained in B so rule 2 is satisfied
A is not equal to B so rule 3 is satisfied
Answer: yes (all 3 rules are satisfied)
Homework #19 – 34: Determine which of these are true. (Choose every answer that is true, in
many instances there will be more than one correct choice.)
A = B, A ⊆ B, B ⊆ A, A ⊂ B, B ⊂ A, or none of these
19) A = {Trix, Captain Crunch, Rice Krispees} B = {Rice Krispees}
B is contained, but not equal to A. B is both a subset and a proper subset of A.
A is not contained in B
The sets are not equal.
Answer: B ⊆ A, B ⊂ A
Step-by-step explanation:
here all of it
Related Questions
Tell whether the statement is always, sometimes, or never true.
The LCM of two different prime numbers is their product.
The statement is
true.
Answers
twelve is no more than the sum of -1.5 times a number w and 4
Answers
Answer:
w < -5.33333
Step-by-step explanation:
Step 1: Write inequality
12 < -1.5w + 4
Step 2: Solve for w
Subtract 4 on both sides: 8 < -1.5wDivide both sides by -1.5: -5.3333 > wRewrite: w < -5.33333Here we see that any value smaller than -5.3333 will work.
Find the value of x. Then find the angle measures of the polygon.
Please help me as soon as possible, it would be great if you gave me an explanation!
Answers
For number 20:
Because a triangle is 180 degrees, we will equal all the angles we know to that. So, this is how we will write our equation:
Solve for x:
60 + x + 20 + 3x = 180
4x = 100
x = 20
Using 75, you can find the angle measure by plugging 75 where x is present in the angle measures. For example:
x = 20,
20 + 20 = 40
3(20) = 60
-
For number 21:
The shape shown is basically two triangles, so 180 x 2 is 360. Again, same procedure. Add all known angle measures and make an equation where they all equal 360.
Solve for x:
x-5+x+35+1.4x+x=360
x = 75
By isolating x, you should get an answer of 75. Now, plug that into each of the equations:
x = 75
75 + 35 = 110
75 - 5 = 70
1.4(75) = 105
37+32 divided by 2 X 7
Answers
someone please help myst teacher never explains the hw
Answers
Answer:
Prob gonna be prob b
Step-by-step explanation:
Answer:
a 3000
b 2000
c 28000
d 9000
Step-by-step explanation: i think
During their last workout, Michelle did 81 crunches in 3 minutes and her friend Zack did 104 crunches in 4 minutes. Each person thought they did more crunches per minute. Based on this workout, which person is correct?
A) Both are correct.
B) Zack is correct.
C) Neither are correct.
D) Michelle is correct.
Answers
Answer:
D) Michelle is correct.
D) Michelle is correct
81/3=27 104/4=26
Michelle did 27 per min and Zack did 26 per min.
What is the graph of
5x - 2y = 20?
Answers
Answer:
Graph D
Step-by-step explanation:
5x-2y=20
-2y=-5x+20
y=5/2x-10
Hope this helps!
Slope of (-15,-10) (9,8)
Answers
What is greater -5.65 or -5.6
I know its easy but i have to finish this buy 10:50am so could anyone help me????
Answers
Answer:
I believe the answer should be -5.6.
Calculator
31°
What is the value of x?
Enter your answer as a decimal to the nearest tenth in the box.
22 ft
ft
B
х
Answers
Answer:
x=90=9.49
Step-by-step explanation:
compare with yours
Answer:
It's actually 13.2
Step-by-step explanation:
I just took the 7.01 Unit CheckPoint on K12
Simplify each expression using the distributive property and combining like terms
7(1 - 4x) + 4x =
6(v - 5) +1 =
- 7(8 + 8x) - 6x =
- 3(6x +9) + 1 =
- 2(-6+ 5k) - 1 =
Answers
Answer:
7- 32x
6v - 31
-56 - 62x
-18x - 26
11 - 10k
Am I right?
jjsndbddjijfnfbfbdhjdidoxo29294847
Answers
May I get some help on this please?
Answers
Answer:
2
Step-by-step explanation:
The answer is the second explanation I think
Answer:
it's the 2nd answer
Step-by-step explanation:
basically I just found the range and it kinda gave me the answer (range is the difference between the highest and lowest number, so 24-9=15)
What is N + (n+2) when N = 62 and n = 64
Answers
can someone tell me which answer in order is correct
Answers
Answer:
the first part is given equation
the seconed is distributive property
the third is combine like terms
the forth is multiply,divided something it says xd
the fifth is the last one adding,sub whaterever xd
Step-by-step explanation:
Answer:
Given equation
combine like terms
Addition or subtraction property of equality
Distributive property
addition or subtraction property of equality
Multiplication or division property of equality
Step-by-step explanation:
the cost (in dollars)of making u cell phones is represented by C=20u+61. How many cell phones are made when the cost is $481
Answers
Answer:
U=21
Step-by-step explanation:
What they are asking for is U. They tell you that the cost is 481 so the C is 481
481=20u+61
You minus 61 from 481 which is 420.
420=20u
Then you divide 20 from 420 and you will get 21.
In a sale a clothes shop reduces its price by 35% a jacket usually costs $71 how much after the sale?
Answers
Answer:
$46.15
Step-by-step explanation:
[tex]71(1 - .35) = 46.15[/tex]
OK i dont know what time it is for you so its 5:40 am but here another question.
I have $40.50
If i went to a store and got 3 boxes of popcorn ( $15.99)and 3 milk jugs ($12.99).Then get a pack of gum ( $1.99).Plus tax ( $4.99) add to everything.Hint plus all money then add $4.99 three times.
Answers
Answer:
Question wasn't specific enough but I believe the cost=$93.92
Step-by-step explanation:
15.99*3=47.97
12.99*3=38.97
plus 1.99 and 4.99, add them all together
47.97+38.97+1.99+4.99=93.92
Please help!!!! I need to pass this class!!
Answers
Answer:
x is approximately 69.39 degrees.
Step-by-step explanation:
To find x in this triangle, we can use the sin rule:
[tex]\frac{a}{sin(A)} =\frac{b}{sin(B)}[/tex]
The corresponding angle for each length is the one that lies directly opposite it. E.g. if 3.5 was our length 'a', then 55 degrees would be our angle A.
So let's take 3.5 and 55degrees as our length and Angle A, and 4 and x degrees as our length and angle B as we are trying to solve for x.
This would give us the following equation:
[tex]\frac{3.5}{sin(55)} =\frac{4}{sin(x)} \\[/tex]
Since we are solving for an angle, it will be easier to rearrange the equation if we have it as the numerator, so we can flip the fractions to make it easier. It will still be equal as we are looking for the ratio.
[tex]\frac{sin(55)}{3.5} =\frac{sin(x)}{4} \\[/tex]
From here let's isolate the sin(x) by multiplying by 4 and solving the values we have so far:
[tex]\frac{4 sin(55)}{3.5} =sin(x)\\\frac{3.2766}{3.5} =sin(x)\\0.936=sin(x)[/tex]
Now the final step is to use inverse sin to cancel the sin so we just have x:
[tex]sin^{-1} 0.936=x\\x=69.39[/tex]
x is approximately 69.39 degrees.
Hope this helped!
y= -2x +9 what does x equal ?
Answers
Answe Step-by-step explanation:
46579765+4879+889 78+6565
Please help me it would mean a lot.
Answers
Answer:
measure of angle ROQ is 41.5º
Step-by-step explanation:
That little curved line inside the angle POR and angle ROQ means they are congruent, or have congruent angles. So, we have two of the same angles, which we can represent with the same variable: x.
114-31= 83
83=2x
83/2 = 41.5
x=41.5
The formula for the remaining volume of fuel in a cars tank is I - E • D, where I is the initial volume of fuel, E if the fuel efficiency, and D is the distance traveled. Carson drove a distance of 120 kilometres. He initially had 30 litres of fuel, and his car's fuel efficiency is 100 cubic centimetres per kilometer. What calculation will give us the estimated volume of fuel left in Carson's tank by the end of the drive, in litres? a)30-100/1000 • 120 b)30•1000-100•20 c)30/1000 -100•120 d)30-100•1000•120
Answers
Answer:
a)30-100/1000 • 120
Step-by-step explanation:
Given:
Remaining volume of fuel in a cars tank = I - E • D
where,
I = initial volume of fuel
E = fuel efficiency
D = distance traveled.
Carson
I = 30
E = 100
D = 120
Estimated volume of fuel in Carson's tank = I - E • D
= 30 - 100/1000 * 120
a)30-100/1000 • 120
Answer:
A (30-(100/1000)x120)
Step-by-step explanation:
I is a volume quantity, D is a distance quantity, and E is a rate measured as volume/distance.
So ExD gives us volume quantity.
Distance units are consistent (kilometers) but the volume units of E are inconsistent with those of I and the desired answer.
Let's convert E to liters per kilometer. We will use the fact that there are 1000 cubic centimeters per liter.
You get: 30 liter - 100/1000 liters/kilometer x 120 kilometers
In conclusion, this is the calculation that will give us the estimated volume of fuel that remains in Carson's tank by the end of the drive, in liters:
30-100/1000x120.
Hope this helps!
Solve the equation
6= x/4 + 2
Answers
Answer:
16
Step-by-step explanation:
16/4=4
4+2=6
Answer:
x=16
Step-by-step explanation:
Frank is a professional golfer, so he goes to the golf course to practice every 2 days. Jack just
started playing golf, so he goes to the golf course every 6 days. Ethan just plays for fun and
goes to the golf course every 9 days. If Frank, Jack and Ethan all played together today, how
many days later will they all go to the golf course together again?
Answers
Answer:
in 18 days
Step-by-step explanation:
that's she shortest they can do,
2*9
6*3
9*2
I have three squares and I want to divide them by 3/4 How many pieces would I have
Answers
I NEED HELP ASAP!!!!!!!!!!!!!!!!!! Please help!
Explain what a rigid motion is and why it is important
Answers
Answer:
rigid motion preserves the original shape and size of the figure—so the new figure after the rigid motion and the old figure before it would be congruent.
If f(x) = -x^2 +5z and g (x) = 2x-4 find
Answers
Answer:
1) x=√−y+5z or x=−√−y+5z
2) g=2x-4/x
Step-by-step explanation:
explanation for first problem:
Let's solve for x.
y=−x^2+5z
Step 1: Flip the equation.
−x^2+5z=y
Step 2: Add -5z to both sides.
−x^2+5z+−5z=y+−5z
−x^2=y−5z
Step 3: Divide both sides by -1.
−x^2
−1
=
y−5z
−1
x2=−y+5z
Step 4: Take square root.
x=√−y+5z or x=−√−y+5z
explanation for problem 2:
Let's solve for g.
gx=2x−4
Step 1: Divide both sides by x.
gx/x = 2x-4/x
g=2x-4/x
T^12 x T^10= T to the power of what
Answers
t²²
Step-by-step explanation:Hi there !
t¹²ₓ t¹⁰ = t¹²⁺¹⁰ = t²²
Good luck !
Find measure angle 3
Answers
Answer:
∠ 3 = 50°
Step-by-step explanation:
∠ 3 and 50° are corresponding angles and congruent, thus
∠ 3 = 50°
Answer:
90
Step-by-step explanation:
you add 40+ 50 and it out to 90
Can someone help me ASAP please 15 and 16
Answers
Explanation:
$6.50(2)=$ 13.00
$20.00(2)=$40.00
+$ 53.00
$53.00- $10.00 =$ 43.00
$44.50-$43.00= $1.50