1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ad-work [718]
2 years ago
13

what is the lub and glb of the following sets, in the set of real numbe if exists E={ 0.2,0.23,0.234,0.2343,0.23434,0.23434,...}

​
Mathematics
1 answer:
Brums [2.3K]2 years ago
4 0

Answer:

Hello,

Step-by-step explanation:

LUB(E)=0.2=\dfrac{1}{5} \\\\GUB(E)=0.2 34 34 34 ....=0.2+\dfrac{1}{10} *0.343434....\\\\=\dfrac{1}{5} +\dfrac{1}{10} *\dfrac{34}{99} \\\\=\dfrac{198+34}{990} \\\\=\dfrac{116}{495}

You might be interested in
What figures have rotation symmetry? PLEASE HELP I NEED A GOOD GRADE
Ivanshal [37]
The figures on the top left and the bottom right have rotational symmetry.
5 0
3 years ago
Read 2 more answers
Is 85 prime or composite explain
forsale [732]
85 is a composite number because it has more than two factors.
85 factors are 1, 5, 17, 85

For example 5 is prime because it’s factors are only two of them
5 factors are 1, 5
8 0
3 years ago
Please help I really need your help
Amanda [17]

Answer:

1.  1200 \ kg/m^3

2.

a)

35 cm = 0.35 meters

11 dm = 1.1 meters

15 mm = 0.015 meters

b)

Volume = 0.005775 cubic meters

Mass = 15.5925 kilograms

Step-by-step explanation:

1.

We know

Density = Mass/Volume

Given

Mass = 90 kg

Volume = 0.075 cubic meters

The SI unit for density is kilograms per cubic meters. Our dimensions are just that, so we just need to plug in the numbers into the formula and get our answer. Shown below:

Density = \frac{90}{0.075}=1200 \ kg/m^3

The Density of asphalt block = 1200 \ kg/m^3

2.

a)

We need to express 35cm, 11dm, and 15mm in meters

We know

100 cm = 1 meters, so

35 cm = 35/100 = 0.35 meters

We know 1 dm = 0.1 meters, so

11 dm * 0.1 = 1.1 meters

We know, 1mm = 0.001 meters, so

15 mm * 0.001 = 0.015 meters

b)

Volume of the Slab is length * width * height, in meters, that would be:

Volume = 0.35 * 1.1 * 0.015 = 0.005775 cubic meters

THe mass would be found by the formula:

Density = Mass/Volume

2700 = Mass/0.005775

Mass = 0.005775 * 2700 =  15.5925 kilograms

5 0
3 years ago
A brother and sister attend the same school, and they walk from home to school using the same route. It takes the brother 24 min
madam [21]

Answer:

No

Step-by-step explanation:

24 - 3 = 21 minutes

21 > 18

5 0
2 years ago
How many yards are there in 1260 feet? A. 105 yards B. 210 yards C. 3780 yards D. 420 yards
frez [133]

The answer is D. 420 yards because 1yd. = 3 ft. 1260 divided by three = 420

7 0
3 years ago
Other questions:
  • The diagram illustrates a decorative lamp that is suspended from a ceiling by two strings. The first string is 43 centimeters lo
    12·1 answer
  • Juan delivers bunker sand in a truck. The truck bed is 3 yards long, 2 yards wide and 1 yard high. Bunker sand costs $79 per cub
    8·1 answer
  • What is ths sighn called in math >
    15·2 answers
  • Simplify the following:<br> 7x + 14<br> 1)<br> x' + 8x + 12
    8·1 answer
  • Please help, will mark brainliest!
    13·2 answers
  • Which list shows the absolute values in order from least to greatest?
    10·2 answers
  • A cone and a cylinder have congruent height and base bases. The volume of the cone is 18m squared. What's the volume of the cyli
    6·1 answer
  • Determine if line AB is tangent to the circle.
    9·1 answer
  • Teresa placed parentheses in the expression below so that its value was greater than 80. Write the expression to show where Tere
    6·1 answer
  • Will mark brainliest if I can.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!