Answer:
a) AUB = { 1 ,2 , 3, 4, 5, 6, 8, 10}
b) A∩ B = { 2, 4, 6 }
c) A-B = { 8 , 10}
Step-by-step explanation:
Step(i):-
Given that the sets
U = { 1,2,3,4,5,6,7,8,9,10}
A = { 2,4,6,8,10}
B = { 1,2,3,4,5,6}
AUB = { 2,4,6,8,10} U { 1,2,3,4,5,6}
AUB = { 1 ,2 , 3, 4, 5, 6, 8, 10}
Step(ii):-
A∩ B = { 2 ,4, 6, 8,10} ∩ { 1,2,3,4,5,6} = { 2, 4, 6 }
A-B = { 2,4,6,8,10} - { 1,2,3,4,5,6} = { 8 , 10}
Final answer:-
a) AUB = { 1 ,2 , 3, 4, 5, 6, 8, 10}
b) A∩ B = { 2, 4, 6 }
c) A-B = { 8 , 10}
Jamal wants to install a rectangular 2025 cm² window in his garden shed. That area of window comes in several length/width combinations, and he wants to minimize the perimeter to prevent drafts. What is the least perimeter possible for the window?
Answer:
The ideal size will be a 45cmx45cm square, giving you a perimeter of 180cm.
Step-by-step explanation:
The shortcut answer here is that the square will always be the most efficient rectangle for border to area, so the sides should be the square root of 2025 cm, or 45 cm each, giving you a total of 180 minimum perimeter.
The full solution is to express the perimeter as a function of the length and width, define either length or width as a function of the other, take the entire expression's derivative and solve for zero. Let's do it:
So first the area:
2025 = wl
l = 2025 / w
Now the sides:
[tex]p = 2w + 2l\\p = 2w + 2(2025 / w)\\p = 2w + 4050 / w[/tex]
Then we can take its derivative with respect to w
[tex]p = 2w + 4050\frac{1}{w}\\\frac{dp}{dw} = 2 + 4050\frac{-1}{w^2}\\[/tex]
Now we can set the derivative to zero, and solve for w:
[tex]\frac{dp}{dw} = 2 + 4050\frac{-1}{w^2}\\0 = 2 + \frac{-4050}{w^2}\\-2 = \frac{-4050}{w^2}\\2w^2 = 4050\\w^2 = 2025\\w = \sqrt{2025}\\w = 45[/tex]
So the width being 45, we can get the length by dividing the area by that amount, which of course is also 45.
Find the missing side of the right triangle. Write the value only.
simple 9th grade math
Answer:
-1078
Step-by-step explanation:
To find the nth term in an arithmetic sequence we use the following formula
aₙ=a₁+(n-1)*d
Where a₁ is the first time, and d is the common difference (in this case -20)
So we have
2+(55-1)*-20
2+(54)*-20
2-1080
-1078
64,602 divided by 157
Answer:
about 411.48
Step-by-step explanation:
Use a calculator
2x + y = 11
3x - y = 4
Answer:
[tex]x=3,y=5[/tex]Step-by-step explanation:
Add the equations together and solve for x.
[tex](2x + y )+ (3x - y) = 11 + 4[/tex]
[tex]5x=15[/tex]
[tex]x=3[/tex]
Use equation [tex]2x+y=11[/tex] to solve for y.
[tex]2(3) +y=11[/tex]
[tex]6+y=11[/tex]
[tex]y=11-6[/tex]
[tex]y=5[/tex]
Find the missing side of each right triangle. Side c is the hypotenuse. Sides a and bare
the
legs. Round your answers to the nearest tenth if necessary.
a = 8.8 ft, b = 9 ft
Answer: 12.6 ft
Step-by-step explanation:
a = 8.8 ft
b = 9 ft
c = ?
Since it is a right triangle, we can use the Pythagorean Theorem to solve for missing side c, the hypotenuse.
a^2 + b^2 = c^2
(8.8)^2 + (9)^2 = c^2
158.44 = c^2
(158.44)^(1/2) = c
12.5873 = c
c = 12.6 ft (rounded to the nearest tenth)
reduce to the simplest form[tex]\frac{286}{858}[/tex]
Answer:
143 over 428
Step-by-step explanation:
can someone please help me?
What does this symbol mean "⊥" ?
Answer:
The symbol ⊥ means is perpendicular to
Step-by-step explanation:
(brainliest)
Answer:
perpendicular to
Step-by-step explanation:
work out 1/5 of 80 =
Answer:
16
Step-by-step explanation: your welcome
−72=8d
Help me
Plzzzzzzz
Answer: d= -9
Step-by-step explanation:
The stock of Company A gained 5% today to $54.60. What was the opening price of
the stock in the beginning of the day?
Answer: $51.85
Step-by-step explanation:
To find the answer, you would divide $54.60 by 100. You do that to figure out the amount of money for 1%. Then you multiply 5 to figure out 5%. Lastly, you would subtract the answer by $54.60 since your finding out how much it was at the beginning of the day. Equation: $54.60 ÷100= $.546 x 5= 2.73. 54.60- 2.75 =51.85
$51.85
To find the answer, you would divide $54.60 by 100. You do that to figure out the amount of money of 1%
Then you multiply 5 to figure out 5%. Subtract the answer by $54.60 since your finding out how much it was at the beginning of the day.
Equation: $54.60 ÷100= $.546 x 5= 2.73. 54.60- 2.75 =51.85.
Final result: $51.85
please help i’ll give you and thanks and brainliest
Answer:
105
160
150
Step-by-step explanation:
This is just simple subtraction.
180-75=105
180-20=160
180-30=150
The ordered pairs (8,12). (16, 24), (x, 21), (26, y) represent a proportional relationship
Find the value of x and the value of y.
Select the two correct answers.
A y=56
B. x= 14
C. x=7
D. y=39
Ex= 9
F. y = 42
Answer: B. x= 14
D. y=39
Step-by-step explanation:
First and foremost, we need to calculate the constant of proportionality. This will be:
(8,12).
y = kx.
12 = 8k
k = 12/8
k = 1.5
(16, 24),
y = kx
24 = 16k
k = 24/16
k = 1.5
(x, 21),
y = kx
x = y/k
x = 21/1.5
x = 14
(26, y)
y = kx
y = 26 × 1.5
y = 39
Which function represents the graph of y = 3(1/2)^x
а
b
с
d
Answer: b
Step-by-step explanation:
Classify 5x5 - 5x3 + 2x2 by degree.
Answer:
295 is the answer... god bless
Answer25
Step-by-step explanation:
slove for y . 3x+2y=-6
Answer:
y = -(6+3x)/2
Step-by-step explanation:
♪\(*^▽^*)/\(*^▽^*)/
Work out the PED for each, and comment on your result. The price of a smartphone is currently £200, and the quantity demanded is 4m. Next year the price falls to £180 and the quantity demanded rises to 6m. The price of pens today is £1, and the quantity demanded is 1m. Next year the price rises to £1.10 and the quantity demanded falls to 950,000. The price of a daily newspaper today is £1.50p, and the quantity demanded is 2m. Next year the price falls by 30p and the quantity demanded rises to 2.2m Question 2
Answer:
a.) PED = 5
b.) PED = 5
c.) PED = 0.05
Step-by-step explanation:
Here , PED = Price elasticity of demand
a.)
Given - The price of a smartphone is currently £200, and the quantity demanded is 4m. Next year the price falls to £180 and the quantity demanded rises to 6m.
PED = (Change in quantity demanded)×[tex]\frac{Initial Price}{Initial Quantity demanded}[/tex]
Now,
Change in quantity demanded = [tex]\frac{6 - 4}{180 - 200}[/tex] = [tex]\frac{2}{20} = \frac{1}{10}[/tex]
⇒PED = [tex]\frac{1}{10}[/tex]×[tex]\frac{200}{4}[/tex] = 5
b.)
Given -The price of pens today is £1, and the quantity demanded is 1m. Next year the price rises to £1.10 and the quantity demanded falls to 950,000.
Change in quantity demanded = [tex]\frac{1000000 - 950000}{1.10- 1}[/tex] = [tex]\frac{50000}{0.10} = 500000[/tex]
⇒PED = [tex]500000[/tex]×[tex]\frac{1}{1000000}[/tex] = 5
c.)
Given -The price of a daily newspaper today is £1.50p, and the quantity demanded is 2m. Next year the price falls by 30p and the quantity demanded rises to 2.2m
Change in quantity demanded = [tex]\frac{2.2 - 2}{30 - 1.50}[/tex] = [tex]\frac{0.2}{28.50} = \frac{20}{2850} = \frac{2}{285}[/tex]
⇒PED = [tex]\frac{2}{285}[/tex]×[tex]\frac{1.50}{2}[/tex] = [tex]\frac{15}{2850}[/tex]= [tex]\frac{1}{190}[/tex] = 0.005
Jada had read 2/3 of a book . She has read 60 pages so far . How many pages are in the whole book?
please solve for b
a=b/c
Answer:
b = ac
Step-by-step explanation:
Solve for b by simplifying both sides of the equation, then isolating the variable.
Answer:
b= ac
Solve for b by simplifying both sides of the equation, then isolating the variable.
Not drawn
accurately
AB is parallel to CD.
LMN and PMQ are straight lines.
MQ = MN
B
Work out the value of x. *
(3 Points)
Diagram not drawn accurately.
-D
The value must be a number
so first u want to get a ruler to measure each sides, there gonna seem big at first so divide what you get on the ruler by 2 so its smaller, then do it for all sides.
HELP PLS I am failing!! Will mark brainiest show your work!
Answer:
Step-by-step explanation:
1.)
7 - 3i - 6 - 4i
Combine like terms
1 - 7i
Cant do anything else
__________________________________________________________
2.)
5 + 4i - 9 - i
Combine like terms
- 4 + 3i
Can't do anything else
__________________________________________________________
3.)
5i - 3 - 7 + 2i
7i - 10
Can't do anything else
__________________________________________________________
4.)
9i + 3 - 4 + 3i
12i - 1
Cant do anything else
__________________________________________________________
Hope this helped!
Have a supercalifragilisticexpialidocious day!
Answer:
1. is 7-3i-(6-4i)= 1+i
2. is 5 + (4 * i) - (9 - i) = -4+5i
3. is (5 * i) - 3 - (7 + (2 * i)) = -10+3i
4. is (9 * i) + 3 - (4 + (3 * i)) = -1+6i
trust me guys Im in 11 grade i did this all ready
Step-by-step explanation:
what is the slope of the form of (1,2) m= -2
Answer:
m = -2
Step-by-step explanation:
slope is m in y = mx + b
You already said what m is
Guys help I’ve been trying to solve this problem for the past 40 minutes.
Answer:
56 degrees since you set the two equations equal to each other and then plug the value of p (which is 11) back in to find the answer.
What is the complement of 45?
Answer:
45°
Step-by-step explanation:
If sum of two angles is 90° , then they are called complementary angles.
Complement of 45 = 90 - 45 = 45
HURRY
1/12 is the same as 1÷12. What is the exact quotient in decimal form of 1÷12?
Answer: Yes 1/12 is the same as 1 ÷ 12
decimal form is 0.083333333333333333(3 is repeating)
Step-by-step explanation:
Answer:
0.08333333333
Step-by-step explanation: since i helped can i have brainlist please :D
I don't know if it's supposed to do with (n-2)180
Also please explain :D
Step-by-step explanation:
[tex] sum \: of \: interior \\ \: angels \: is \: 2340 \: degrees. \\
(n−2)⋅180=2340 \\
180n - 360=2340 \\ 180n = 2700 \\
n=15 \\
number \: of \: sides=15[/tex]
the polygon is 15 sided.
The. Ordered pair?
Is this a function yes or no?
Help me please many thanks :)
Answer:
(a) median = 6
(b) median = 14
(c) median = 37
(d) median = 19
(e) median = 4.5
(f) median = 15
(g) median = 126
(h) median = 345
(i) median = 50
(j) median = 75
Step-by-step explanation:
The median of the ungrouped data is obtained by arranging the numbers from the lowest to the highest number, then select the middle number. If you have two numbers in the middle, sum the two numbers and divide it by 2.
(a) in order: 3 4 4 6 7 8 8
median = 6
(b) in order: 11 11 12 14 15 16 17
median = 14
(c) in order: 31 31 34 37 38 41 42
median = 37
(d) in order: 17 17 18 19 19 21 23
median = 19
(e) in order: 3 3 3 4 5 6 7 9
median = (4 + 5) / 2 = 4.5
(f) in order: 12 14 14 14 16 18 19 20
median = (14 + 16)/2 = 15
(g) in order: 120 121 124 128 129 131
median = (124 + 128)/2 = 126
(h) in order: 321 339 342 345 352 358 362
median = 345
(i) in order: 43 46 49 49 51 51 51 52
median = (49 + 51)/2 = 50
(j) in order: 68 70 73 74 76 77 77 81
median = (74 + 76)/2 = 75
Help pleas brainliest promise
Answer:
1) 13
2) 1
Step-by-step explanation:
1) you add the e amount of people that went to the store 3 and 5 times because those are all more than 2.
2) 1 has the lowest number on the amount of landings.