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
Lina20 [59]
3 years ago
10

HELP QUICK! PLEASE, 10+5 POINTS AND BRAINLIST!

Mathematics
1 answer:
vagabundo [1.1K]3 years ago
7 0
It’s the 4th one
I did that before
You might be interested in
What inverse operation should be used to isolate the variable in the equation j ÷ 12 = 50?
DerKrebs [107]

Answer:

600

Step-by-step explanation:

50x12=600 you can check this by doing 600/12=50

7 0
3 years ago
Read 2 more answers
I need help quick! <br> what is the coordinate of the midpoint GO
Zolol [24]

0 because the number in the middle is the midpoint.

5 0
2 years ago
Read 2 more answers
Prove each of the following statements below using one of the proof techniques and state the proof strategy you use.
pochemuha

Answer:

See below

Step-by-step explanation:

a) Direct proof: Let m be an odd integer and n be an even integer. Then, there exist integers k,j such that m=2k+1 and n=2j. Then mn=(2k+1)(2j)=2r, where r=j(2k+1) is an integer. Thus, mn is even.

b) Proof by counterpositive: Suppose that m is not even and n is not even. Then m is odd and n is odd, that is, m=2k+1 and n=2j+1 for some integers k,j. Thus, mn=4kj+2k+2j+1=2(kj+k+j)+1=2r+1, where r=kj+k+j is an integer. Hence mn is odd, i.e, mn is not even. We have proven the counterpositive.

c) Proof by contradiction: suppose that rp is NOT irrational, then rp=m/n for some integers m,n, n≠. Since r is a non zero rational number, r=a/b for some non-zero integers a,b. Then p=rp/r=rp(b/a)=(m/n)(b/a)=mb/na. Now n,a are non zero integers, thus na is a non zero integer. Additionally, mb is an integer. Therefore p is rational which is contradicts that p is irrational. Hence np is irrational.

d) Proof by cases: We can verify this directly with all the possible orderings for a,b,c. There are six cases:

a≥b≥c, a≥c≥b, b≥a≥c, b≥c≥a, c≥b≥a, c≥a≥b

Writing the details for each one is a bit long. I will give you an example for one case: suppose that c≥b≥a then max(a, max(b,c))=max(a,c)=c. On the other hand, max(max(a, b),c)=max(b,c)=c, hence the statement is true in this case.

e) Direct proof: write a=m/n and b=p/q, with m,q integers and n,q nonnegative integers. Then ab=mp/nq. mp is an integer, and nq is a non negative integer. Hence ab is rational.

f) Direct proof. By part c), √2/n is irrational for all natural numbers n. Furthermore, a is rational, then a+√2/n is irrational. Take n large enough in such a way that b-a>√2/n (b-a>0 so it is possible). Then a+√2/n is between a and b.

g) Direct proof: write m+n=2k and n+p=2j for some integers k,j. Add these equations to get m+2n+p=2k+2j. Then m+p=2k+2j-2n=2(k+j-n)=2s for some integer s=k+j-n. Thus m+p is even.

7 0
2 years ago
Can you help me Its a test pls help
xxMikexx [17]
It’s just 9 LOL yeahhhhhhhhhhhhhggg hope it goes well lollll

4 0
3 years ago
1) Bob weighed 200 lbs, but after dieting for 6 months, he weighed 170 lbs.
aivan3 [116]

Answer: 15%

Step-by-step explanation:

The Percentage decrease will be:

= Decrease in weight / Old weight × 100

= (200 - 170) / 200 × 100

= 30/200 × 100

= 15%

The Percentage decrease is 15%

7 0
2 years ago
Other questions:
  • What is 7n-20=9(4n+1) ????
    14·2 answers
  • Josh is preparing for an exam by completing practice tests that have different numbers of questions. For each practice test, he
    6·2 answers
  • at 8:00 a.m., the outside temperature was –16°. by 9:00 a.m., the outside temperature had dropped 6.5°. what was the outside tem
    10·1 answer
  • Which of these angle pairs are congruent because they are corresponding
    8·1 answer
  • What is an equation of the line that is perpendicular to y=−3/4x+6 and passes through the point (3, 9) ?
    10·1 answer
  • Simplify 7(x - 1) - 2(x + 1) + 3(x - 4)<br><br> 8x - 21<br> 8x - 4<br> 8x + 21
    14·1 answer
  • A submarine is at 400 feet below sea level. If it ascends 150 feet and then descends 320 feet, how far is it above or below sea
    8·1 answer
  • Find the remainder of h^4+h^2-2=h+3
    9·2 answers
  • Are you a Christian? If so, please join my go o gle cla s s r oom. You don't have to be a Christian. If you want to know more ab
    15·2 answers
  • Exit
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!