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
V125BC [204]
3 years ago
14

Answer these please thank you

Mathematics
1 answer:
xxMikexx [17]3 years ago
7 0

Answer:

reactivity

reactivity

Step-by-step explanation:

You might be interested in
Find angle a<br><br>this is so confusing I've asked 3 tutors and they all don't know how to do this​
ivanzaharov [21]
276. (360 minus 84 = 276)
6 0
2 years ago
Rationalize the denominator​
Mamont248 [21]

Answer:

\huge\color{purple}\boxed{\colorbox{black}{Answer♡}}

\frac{2}{ \sqrt{7}  - 1}  \\  =  >  \frac{2}{ \sqrt{7}  - 1}  \times  \frac{ \sqrt{7}  + 1}{ \sqrt{7}  + 1}  \\  =  >  \frac{2( \sqrt{7}  + 1)}{ \sqrt{7} {}^{2}   - 1 {}^{2} } \\  =  >  \frac{2 \sqrt{7}  + 2}{7 - 1} \\  =  >  \frac{2( \sqrt{7}  + 1)}{6}  \\  =  >  \frac{ \sqrt{7}  + 1}{3}

<h2>———————————————</h2>

\color{red}\boxed{\colorbox{skyblue}{Additional Information~}}

<h3>Here..</h3>
  • Step 3 contains the algebraic identity

( a + b ) × ( a - b ) = a² - b²

  • Also.. in the very last step ,

we earlier had 2 multiplied to rest of the numerator and 6 in the denominator..

we simply divided both the numerator as well as denominator by 2 and hence got the result obtained.

‎ ‎

‎ ‎

‎ ‎

hope helpful~

<h3>~Be Brainly!</h3><h3>~Exhausted Zombie</h3>
7 0
2 years ago
Read 2 more answers
Write a simplified expression for the perimeter of the triangle.
Leviafan [203]

Answer:

6s + 9

Step-by-step explanation:

Perimeter is when you add all the sides together.

2s + 4 + 4s + 2 + 3

Combine like terms

6s + 9

3 0
3 years ago
Read 2 more answers
What is 24 percent of 80
saw5 [17]
\frac { 24 }{ 100 } \times 80\\ \\ =\frac { 24 }{ 100 } \times 10\times 8\\ \\ =\frac { 240 }{ 100 } \times 8\\ \\ =2.40\times 8\\ \\ =\left( 2.00+0.40 \right) \times 8\\ \\ =16.00+3.20\\ \\ =19.20\\ \\ =19.2
3 0
2 years ago
Read 2 more answers
8. Let R be the relation on the set of all sets of real numbers such that SRT if and only if S and T have the same cardinality.
sergejj [24]

Answer:

We must prove that the relation is reflexive, symmetric and transitive. Recall that to sets have the same cardinality if there exist a bijective mapping between them.

<em>Reflexive: </em>Take the identity map I:S\rightarrow S, which is bijective. Then SRS.

<em>Symmetric:</em> If SRT then, there exist a bijective map f:S\rightarrow R. In order to prove that TRS just take the inverse map of f: f^{-1} which is also bijective. Therefore, TRS.

<em>Transitivity: </em>Suppose that SRT and TRU. Also, assume that f is the bijective map between S and T, and g the bijective map between T and U. It is not difficult to check that the map h=g(f) is bijective and h:S\rightarrow U. Therefore, SRU.

Hence, the relation R is an equivalence relation.

The equivalence class of the set {0,1,2} is the class of all the sets with three elements, and we can associate it with the number 3. There is a construction of natural numbers based on this idea.

The equivalence class of Z is the same equivalence class of N. Therefore, is the class of all denumerable or countable sets.

Step-by-step explanation:

When we want to prove that a given relation R is equivalence, we need to check that R satisfies all the three conditions: reflexive, symmetric and transitivity. Usually the first two are very simple to prove and comes directly from the definition. The transitivity is more tricky. In this case we need to recall the definition of cardinality.

7 0
3 years ago
Other questions:
  • Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the
    5·1 answer
  • Joe helped his soccer coach pass out equipment to the 13 players on the team. He gave each player 4 soccer balls and 3 cones. Wh
    12·2 answers
  • Marco has a jug with 37 1/2 ounces of juice. He wants to use some small cups to pass out samples of the juice Each cup holds 2 1
    8·2 answers
  • Liam has 3 games and 10 songs on his computer. How many outcomes are possible when randomly choosing a song and a game?
    5·1 answer
  • Simply the problem.
    6·2 answers
  • What is bigger 2/3 or 4/5 or
    5·2 answers
  • Which expression is equivalent to (m^8n^−4)^14 ?
    14·1 answer
  • What is the interquartile range?<br> (a) 18<br> (b) 35<br> (c) 57<br> (d) 68<br> (e) 75
    15·1 answer
  • Do ALL linear equations have 1 solution? Explain
    10·1 answer
  • Two lines, A and B, are represented by equations given below: Line A: y = x − 2 Line B: y = 3x + 4 Which of the following shows
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!