Tim climbed a mountain with his friends this Sunday. They started at twenty past eight in the morning. They reached the top of the mountain at half past ten. Without resting,
they descended the mountain immediately. At ten to twelve, they returned to the base
of the mountain. How much longer did it take to climb up to the top than to get down to
the bottom? min

here is the

mark brainliest pl

step-by-step explanation:

a and d

answer: a) 56% women

b)44% men

step-by-step explanation:

the polynomial is a perfect square trinomial of the form a^2-2ab+b^2:

option a. true

step-by-step explanation:

9x^2-12x+4

comparing with the form a^2-2ab+b^2

1.) a^2=9x^2

solving for a: square root both sides of the equation:

sqrt(a^2)=sqrt(9x^2)

a=sqrt(9) sqrt(x^2)

a=3x

2.) b^2=4

solving for b: square root both sides of the equation:

sqrt(b^2)=sqrt(4)

b=2

to be a perfet square trinomial 2ab must be equal to 12x. let's check:

2ab = 2 (3x) (2)

2ab = 12x

correct