Anil, a student of class X goes to Ganga river with his father. When he sees a boat in the river, then he wants to sit in the boat. So his father Ramesh is ready to sit with him. In this order, Anil is sitting on a boat which goes upstream at a speed of 6km/h and returns downstream at a speed of 14km/h. When Anil is in the boat, some questions arise in the mind. Please answer the following questions. 1)Find the speed (in km/h)of the boat in still water:
2)Find the speed (in km/h)of stream.
3)Which mathematical concept is used in above problem?
4)Write the direction in which the speed is maximum.
5)Find the average speed of stream and boat in still water.
Please answer fast!!!

a reflection across the x-axis , followed by the by a reflection across the y-axis , and then a scale dilation of 0.5 .

answer: 5

step-by-step explanation:

i wish i could you, i have no idea how to answer this

step-by-step explanation:

hello from mrbilldoesmath!

answer:   (7x + 6y) ( 49x^2 - 42xy + 36y^2)

discussion:

in general, the factorization of a^3 + b^3 is

a^3 + b^ 3 = (a + b) ( a^2 - ab + b^2)

in our case note that 343 = 7^3 and 216 = 6^3 so the equation becomes:

343x^3 + 216y^3 = (7x)^3 + (6y)^3

if you think of a (above) as 7x and b as 6y the factorization becomes

343x^3 + 216y^3 =

((7x + 6y) (   (7x)^2 - 7x*6y + (6y)^2)   =

(7x + 6y) ( 49x^2 - 42xy + 36y^2)

you,

mrb

(a + b) (a^2 - a b + b^2)