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
Ne4ueva [31]
2 years ago
12

What do u get when u double 15

Mathematics
2 answers:
garri49 [273]2 years ago
5 0
Um 15+15 equals 30 so 30
Svetach [21]2 years ago
4 0
Answer- 30

explanation- 15+15=30
You might be interested in
What is the value of B for the following triangular prism?
Vika [28.1K]

Answer:

56cm is not the answer for sure trust me

Step-by-step explanation:

I took the test so dont worry!

5 0
3 years ago
Read 2 more answers
(a) If G is a finite group of even order, show that there must be an element a = e, such that a−1 = a (b) Give an example to sho
Dahasolnce [82]

Answer:

See proof below

Step-by-step explanation:

First, notice that if a≠e and a^-1=a, then a²=e (this is an equivalent way of formulating the problem).

a) Since G has even order, |G|=2n for some positive number n. Let e be the identity element of G. Then A=G\{e} is a set with 2n-1 elements.

Now reason inductively with A by "pairing elements with its inverses":

List A as A={a1,a2,a3,...,a_(2n-1)}. If a1²=e, then we have proved the theorem.

If not, then a1^(-1)≠a1, hence a1^(-1)=aj for some j>1 (it is impossible that a^(-1)=e, since e is the only element in G such that e^(-1)=e). Reorder the elements of A in such a way that a2=a^(-1), therefore a2^(-1)=a1.

Now consider the set A\{a1,a2}={a3,a4,...,a_(2n-1)}. If a3²=e, then we have proved the theorem.

If not, then a3^(-1)≠a1, hence we can reorder this set to get a3^(-1)=a4 (it is impossible that a^(-1)∈{e,a1,a2} because inverses are unique and e^(-1)=e, a1^(-1)=a2, a2^(-1)=a1 and a3∉{e,a1,a2}.

Again, consider A\{a1,a2,a3,a4}={a5,a6,...,a_(2n-1)} and repeat this reasoning. In the k-th step, either we proved the theorem, or obtained that a_(2k-1)^(-1)=a_(2k)

After n-1 steps, if the theorem has not been proven, we end up with the set A\{a1,a2,a3,a4,...,a_(2n-3), a_(2n-2)}={a_(2n-1)}. By process of elimination, we must have that a_(2n-1)^(-1)=a_(2n-1), since this last element was not chosen from any of the previous inverses. Additionally, a_(2n1)≠e by construction. Hence, in any case, the statement holds true.

b) Consider the group (Z3,+), the integers modulo 3 with addition modulo 3. (Z3={0,1,2}). Z3 has odd order, namely |Z3|=3.

Here, e=0. Note that 1²=1+1=2≠e, and 2²=2+2=4mod3=1≠e. Therefore the conclusion of part a) does not hold

7 0
3 years ago
Which number is composite 2, 5, 11, 9,
kykrilka [37]

Answer:

9

Step-by-step explanation:

3*3 =9

4 0
2 years ago
Y=ax with a&gt;1<br><br> im very confused on what to do
Kazeer [188]

Answer:

Step-by-step explanation:

‘a’ in this question is the slope of the line. Slope is (y2-y1)/(x2-x1) for any two points. We can see the line intersects the point (0,0) and (-10/9) so the slope is -10/9 which is less than -1 so

a<-1

4 0
3 years ago
What is the probability of rolling a 5 on a dice?<br><br> Provide answer as REDUCED FRACTION!
melisa1 [442]

Answer:

i mean, if its a 6 sided dice, then 1/6

Step-by-step explanation:

8 0
2 years ago
Other questions:
  • Please solve these three questions on ratios.
    11·1 answer
  • What cause an anti immigrant sentiment to in crease in the us during the 1800?
    12·1 answer
  • A rectangular prism has a volume of 137.54ft the length is 2.3 feet and the height is 13 feet. Write and solve an equation to de
    5·1 answer
  • The probability that a train leaves on time is .07. The probability that the train arrives on time and leaves on time is 0.56. W
    11·2 answers
  • The number of students at Marita’s school decreased to 90% of last year’s number. Last year, there were 1,500 students. How many
    9·1 answer
  • Which of the following is most likely the next step in the series
    13·2 answers
  • Use the greatest common factor and the distributive property to write an equivalent expression in factored form for the followin
    11·2 answers
  • Evaluate this expression if r = 2, t = -7, and u = -5<br> 3(r+u)
    9·2 answers
  • Calculate the slope of the line​
    11·1 answer
  • A monument in a park is shaped like a square pyramid. The dimensions are shown in the net. What is the surface area of the monum
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!