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
Verdich [7]
3 years ago
8

PLEASE ANSWER 18 AND 18

Mathematics
1 answer:
seraphim [82]3 years ago
4 0

18 & 18.  I like it.

The square root of a natural number won't be rational unless the number is a perfect square.  So not a and not b but yes to C.

For d, -0.125374..., we can't really tell. The three dots tells us it goes on.  There's no indication of a repeat but we can't assume it doesn't repeat either.   For d the correct answer is cannot be determined.

OK, onto 18.

The square root of 12 is irrational so has a nonterminating, nonrepeating decimal expansion.

7/8 has a finite decimal expansion, 0.875.   When the reduced denominator doesn't have any prime factors besides 2 and 5 we'll get a finite decimal expansion.  Answer: b

5/11 has 11 as a factor in the denominator, so is an infinite repeating decimal.

I'll guess there's three dots after 0.81818181 so that one doesn't terminate either.

---------

Bonus

0.21 rational, equal to 21/100

3/12 rational, it's the ratio of integers

√12 - 2 is irrational because of the √12

4.125... can't really tell because the ... may hide a repeating or nonrepeating part.


You might be interested in
Help.... and thanks
Archy [21]

Answer:

π

Step-by-step explanation:

The *period* of a function is the length it takes before it repeats. Usually, the period of the sine function is 2π; it takes a full rotation around the unit circle for it to repeat. When we replace the input x with -2x, this does a few things:

- Changes the rotation direction

- Makes the rotation go twice as fast

If we rotate around the unit circle twice as fast, it’ll take us half of 2π, or just π to complete a cycle.

6 0
3 years ago
Find the average rate of change of g(x)= 7x^4+7/x^3 on the interval [2,3]
joja [24]
7x^4 +7/x^2 on the interval [-2,3]
8 0
3 years ago
Simplify each expression for x 4<br> a. -5x4<br> b. 7x-3
kirill [66]
Does x equal 4 ?if it does then a) -100
b) 25
4 0
3 years ago
<img src="https://tex.z-dn.net/?f=%5Chuge%5Ccolor%7Byellow%7D%5Cunderline%20%5Ccolorbox%7Bviolet%7D%20%7B%5Ccolor%7Bred%7D%7BQUE
larisa [96]

Explanation:

Volume of rectangular prism: Length * Width * Height

Solve:

<u></u>

<u>1)</u>

Volume: 9 * 9 * 9 = 9³ = 729 cm³

<u>2)</u>

Volume: 7 * 3 * 2 = 42 m³

<u>3)</u>

Volume: 7 * 7 * 7 = 7³ = 343 cm³

5 0
2 years ago
Pls solve this I need explanation also for this pls pls
Westkost [7]

Answer: 220 yards

Step-by-step explanation:

1 mile equals 1,760 yards

1,760 ÷ 8 = 220 yards

8/8 is 1... so that 1 is equal to the 1,760

You could divide it by 8 as shown above OR to double check yourself.. take your answer of 220 yards and add that 220 to 220 a total of 8 times which will give you your 1 mile equaling to 1,760 total yards which makes 1/8 mile equal the 220 yards. (I really hope this helps and makes sense as to how I figured that out for you:-) )

3 0
3 years ago
Other questions:
  • A car salesman earns a base salary plus commission for every car he sells. The expression shows the amount the salesperson earns
    13·2 answers
  • this weekend you're going to go kayaking down the Colorado River. the rental shop charges $13.00 to rent a kayak with paddles pl
    6·2 answers
  • What are the domain and range of f(x) = |x – 3 | + 6?
    6·2 answers
  • Practice questions for upcoming test
    9·2 answers
  • When a number is added to 1/5 of itself, the result is 24. The equation that models this problem is n + 1/5n = 24. What is the v
    6·1 answer
  • Does the graph represent an arithmetic sequence or geometric sequence?
    10·1 answer
  • BRAINIEST And 50 pOINTS <br><br><br><br><br> PLEASE HELP
    12·1 answer
  • Is this a function ?
    5·1 answer
  • sarah has plantains and pomegranates in a ratio of 18/176 how many ponogranates does she have if she had 9 plantains
    8·1 answer
  • Find the missing side​
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!