Answer:
The one one the left is 1/2 , the one on the right is 8/25
Step-by-step explanation:
By comparing all the options with the formula of sum of cubes and difference of cubes we get that
is sum of cubes
<h3>
What is formula of sum of cubes and difference of cubes?</h3>
Formula of sum of cubes and difference of cubes are following

(a)

by comparison with formula we can say that this is neither sum or nor difference of cubes.
(b)

by comparison with formula we can say that this is neither sum nor difference of cubes.
(c)

we can say that this is neither sum nor difference of cube as it's difference of squares.
(d)

by comparison with formula this is equal to

Hence this is sum of cubes
(e)

by comparison with formula we can say that this is neither sum nor difference of cubes.
By comparing all the options with the formula of sum of cubes and difference of cubes we get that
is sum of cubes
To know more about cubes visit: brainly.com/question/107100
Answer:8x
Step-by-step explanation:
2++2=4 add x up 4 = 8x
To find conjecture about regular polygon, use the formula

Where, n = number of sides of the regular polygone
1) Triangle
n =3
So, Conjecture of the triangle =

= 120
2) Square
n =4
So, Conjecture of the square =

= 90
3) Pentagone
n = 5
So, Conjecture of the pentagon =

= 72
4) Hexagone
n = 6
So, Conjecture of the pentagon =

= 60.
Answer:
0.5 hour
Step-by-step explanation:
Given
Speed of Dina = 10 km/h
Distance = 20 km
So the time Dina taken to complete the track is:

The time taken by Dina is 2 hours. As masha started with dina but she was 4 km of the path left to cycle,
her distance covered in 2 hours was:

So we know the time and distance:
Now,

We have to calculate the time that will be needed by MAsha to complete the track:
As we know the speed and remaining distance

Masha needs 0.5 hour to complete the track ..