Tom will be 9 years less than twice of rachel's age in 10 years. which of the following is the expression of tom's age in 10 years if current age is n?

a) 2n + 1

b) 2n + 2

c) 2n + 11

d) 2n + 28

e) 2n + 19

( explain how you got the answer)

d

step-by-step explanation:

i used the pitagoras theoreme

think the answer would beb

pla·gia·rism

/ˈplājəˌrizəm/

learn to pronounce

noun

the practice of taking someone else's work or ideas and passing them off as one's own.

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