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
Marysya12 [62]
3 years ago
15

Shahida is 21 years old and Nasreen is 15 years old to Shahida after how many years will Shahida be twice as old as nasreen​

Mathematics
1 answer:
guapka [62]3 years ago
5 0

Answer:

27 years

Step-by-step explanation:

21 × 2 = 42

42 - 15 = 27

You might be interested in
Please help me it’s due today! The one on the top is just helping explain the bottom questions
Vinvika [58]

Answer:

dont know

Step-by-step explanation:

3 0
3 years ago
HELP!!!!<br> ILL DO ANYTHING<br> HELP<br> HELP<br> HELP
topjm [15]

Answer:

16 i think

Step-by-step explanation:

8 0
3 years ago
What is the assessed value of a property with a market value of $100,000.00 and an assessment rate of 25 percent
fredd [130]

Answer:

25,000

Step-by-step explanation:

100,000*25%= 25,000

4 0
3 years ago
What is the volume of the box if it scaled down by a factor of 1/10 the volume is 5 and the surface area is
tiny-mole [99]
The surface area= 42.72 inches squared
All you got to do is find the area of each 6 sides the equation should be like this
3×6+3×6+6×.28+6×.28+.28×6+.28×6 and if you use a calculator your answer should be 42.72
8 0
3 years ago
Let H and K be subgroups of a group G, and let g be an element of G. The set <img src="https://tex.z-dn.net/?f=%5Cmath%20HgK%20%
34kurt

Answer:

Yes, double cosets partition G.

Step-by-step explanation:

We are going to define a <em>relation</em> over the elements of G.

Let x,y\in G. We say that x\sim y if, and only if, y\in HxK, or, equivalently, if y=hxk, for some h\in H, k\in K.

This defines an <em>equivalence relation over </em><em>G</em>, that is, this relation is <em>reflexive, symmetric and transitive:</em>

  • Reflexivity: (x\sim x for all x\in G.) Note that we can write x=exe, where e is the <em>identity element</em>, so e\in H,K and then x\in HxK. Therefore, x\sim x.
  • Symmetry: (If x\sim y then y\sim x.) If x\sim y then y=hxk for some h\in H and k\in K. Multiplying by the inverses of h and k we get that x=h^{-1}yk^{-1} and is known that h^{-1}\in H and k^{-1}\in K. This means that x\in HyK or, equivalently, y\sim x.
  • Transitivity: (If x\sim y and y\sim z, then x\sim z.) If x\sim y and y\sim z, then there exists h_1,h_2\in H and k_1,k_2\in K such that y=h_1xk_1 and z=h_2yk_2. Then, \\ z=h_2yk_2=h_2(h_1xk_1)k_2=(h_2h_1)x(k_1k_2)=h_3xk_3 where h_3=h_2h_1\in H and k_3=k_1k_2\in K. Consequently, z\sim x.

Now that we prove that the relation "\sim" is an equivalence over G, we use the fact that the <em>different equivalence classes partition </em><em>G.</em><em> </em>Since the equivalence classes are defined by [x]=\{y\in G\colon x\sim y\} =\{y\in G \colon y=hgk\ \text{for some } h\in H, k\in K \}=HxK, then we're done.

5 0
3 years ago
Other questions:
  • A large manufacturing plant uses lightbulbs with lifetimes that are normally distributed with a mean of 1200 hours and a standar
    8·1 answer
  • Whole sheet:)) thx 20 points
    7·2 answers
  • the instantaneous growth rate r of a colony of bacteria t hours after the start of an experiment is given by the function r=0.01
    6·1 answer
  • How do you simplify 5/3?
    13·2 answers
  • 6xy-8x2 what is the answer to this question
    7·2 answers
  • Six and four fifths divided by three and two ninths
    11·1 answer
  • Please help me last question
    14·2 answers
  • Marc costs $29.75 a week to feed his dog. About how much does it cost him to feed his dog for three weeks if the cost increased
    12·1 answer
  • Please give me the correct answer.Please only answer if you're good at math. ​
    13·1 answer
  • Need this fast yal. im gonna give brainly
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!