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
I am Lyosha [343]
2 years ago
10

A parallelogram with sides s and t has perimeter 2s+2t. Kelly is decorating the edge of her parallelogram-shaped craft table. Th

e tabletop has sides that are 30 inches and 14.5 inches.
What is the perimeter of the tabletop?
Mathematics
1 answer:
skad [1K]2 years ago
8 0

Answer:

what grade  so i can help

Step-by-step explanation:

You might be interested in
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
Copper has a density of 8.9 g/cm A copper necklace has a volume of 396 cm”.
Leviafan [203]

Answer:

3524.4 g

Step-by-step explanation:

  • Use formula: Density = Mass/Volume
  • Mass= Density * Volume

7 0
3 years ago
What is the area of a rectangle with a length of 88 inches and width of 56 inches?
Alecsey [184]

Answer:

C. 4928 in2

Step-by-step explanation:

88 X 56 = 4928 in2

4 0
3 years ago
Read 2 more answers
Determine the relationship between the number of desks in the classroom and
mash [69]

30 + 8 = 38 desks

38 x 4 = 152 legs

If you did not add those eight desks then you will have 120 legs.

So, the amount of legs will go up by 32 if you add 8 more desks.

7 0
3 years ago
2+2= x?? i dont understand this
STALIN [3.7K]

x is a variable which in math means an unknown number, since 2+2=4 the answer (If your trying to find what x is) would be x=4.

7 0
2 years ago
Other questions:
  • Find the product write your answer in exponential form 4^2 x 4^9
    5·1 answer
  • Which expression is equivalent to sin(0.6ohm)?
    5·1 answer
  • An article in a local town newspaper discusses the results of state test scores in their town. The reporter headlines, "The stud
    9·1 answer
  • What is the change in y- values for every two units of x-values?
    13·1 answer
  • A food critic collected data on the lengths of time customers waited for their food. Order the data from least to greatest time.
    7·1 answer
  • Divisibility rules 3 6 and 9
    10·2 answers
  • The mean score of 8 players is 14.5. If the highest individual score is removed the mean of the score of the remaining 7 players
    9·1 answer
  • Can anybody help me please click the picture please
    12·1 answer
  • How did the geographic location of the French and the Dutch settlements in the Americas contribute to their success?
    6·2 answers
  • You have just started a colony on Mars. One of the biggest concerns for the colony is government. What is your colony going to d
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!